Belltestchamber

[dionholt2]

Why does the lithium ion battery explode ?

Lithium battery, I think we should be more rigorous. It should be called the lithium-ion secondary battery. Li is the smallest diameter and most active metal on the element periodic table. If you are not sure, you can look at the periodic table “Lithium hydrogen-helium beryllium boron, carbon-nitrogen, oxygen, fluorine, and neon…”. Because Li has these characteristics, it is widely favored by smart scientists and engineers.

However, this is also a double-edged sword. When lithium metal is exposed to the air, it will violently oxidize with the oxygen in the air and explode. This is also a difficult problem in pre lithium. So in the daily electrode materials, we usually use alloy materials and graphite to store lithium atoms. These materials are like a small storage grid. The lithium atoms lie in it, and the larger oxygen molecules cannot enter. Their reaction will not happen, avoid explosions, and thus achieve safety purposes.

When a lithium-ion battery is charged, the lithium atoms in the positive electrode will lose electrons and oxidize to lithium ions. Lithium ions to the negative electrode through the electrolyte, enter the layer structure of the negative electrode and obtain an electron, which is reduced to lithium atoms. When discharging, the whole procedure is reversed. (This is the origin of the rocking chair battery. The rocking chair battery refers to the charging and discharging process of the lithium-ion battery, which is the intercalation and deintercalation process of lithium ions. During the intercalation and deintercalation of lithium ions, it is accompanied by the equivalent of lithium ions. Intercalation and deintercalation of electrons. In the process of charging and discharging, lithium ions are intercalated / deintercalated and intercalated / deintercalated between the positive and negative electrodes). To prevent the short circuit caused by the direct contact between the positive and negative electrodes of the battery, a diaphragm with many pores is added in the battery to prevent short circuits. A good diaphragm can also automatically close the pores when the battery temperature is too high so that lithium ions can not pass through to prevent danger.

Lithium-ion battery common causes of the explosion

There are serious quality problems with raw materials and incoming materials, mainly the quality of the electrolyte;

The electrode piece absorbs water, and the water reacts with the electrolyte to generate a large amount of gas and heat;

The results show that the charge-discharge internal resistance is larger due to the less liquid injection, which affects lithium-ion transmission;

The welding and sealing procedures of the cover are poor, the sealing performance is poor, there is air leakage, and the external moisture enters;

The internal micro short circuit is mainly dust burr, which is mainly caused by the electrode plate cutting off and cutter burr;

When the current is too high, the negative electrode can not accept more lithium ions, forming dendrite, piercing the diaphragm and short circuit;

The battery is overcharged, the material structure collapses, and lithium dendrites form a piercing membrane.

Lithium-ion battery explosion type analysis

The explosion types of lithium-ion batteries are mainly divided into short circuit and overcharge, and short circuit is divided into an internal short circuit and external short circuit.

Let’s talk about the external short circuit first. The principle is very simple. A conductive substance connects the positive and negative electrodes simultaneously from the outside of the battery. When an external short circuit occurs, the current increases and the battery begins to generate heat. When the heat becomes larger, the electrolyte will decompose, generating a large amount of gas, and the battery will swell.

We said that many diaphragms have the function of closing the pores. At a certain temperature, the diaphragms will close the pores and prevent the transmission of lithium ions, thereby blocking the chemical reaction. The current drops and the temperature also drop slowly, thus avoiding the battery explosion. Of course, the above is only based on the good quality diaphragm.

The internal short circuit is mainly caused by the burrs of copper foil and aluminum foil piercing the diaphragm, or the dendrite crystal of lithium atoms piercing the diaphragm. These tiny needle-shaped metals can cause micro short circuits. Because it is very thin and has a certain resistance value, the current may not be very large. Burrs of copper and aluminum foil can be caused in the production process. The phenomena that can be observed are battery leakage and fast self-discharge. Most of them can be detected by short-circuiting testers. Moreover, due to the small burr, it is sometimes burned out, making the battery return to normal. Therefore, the probability of an explosion caused by the micro short circuit of burr is not high. Burr mainly comes from slitting, laser cutting has few burrs.

There are more sources of dendrites (when the liquid metal solidifies, the solid crystal nucleus grows faster along with certain crystal directions, resulting in the formation of dendritic crystals, referred to as dendrites. The general dendrite size is very small, the length is a few millimeters. The crystal is composed of tens of thousands or millions of crystal grains. The crystal grains in a dendrite have a similar orientation. The serious dendrite structure has an adverse effect on the thermoplasticity), high current, lithium precipitation, etc. will cause.

The explosion caused by overcharge is relatively common. After overcharge, there are needle-like lithium crystals on the electrode plate, puncture points are everywhere, and the micro short circuit occurs everywhere. Therefore, the battery temperature will gradually increase, and finally, the high temperature will change the electrolyte gas. In this case, whether the temperature is too high to make the material burn and explode, or the shell is broken first, which makes the air in and oxidizes the lithium metal violently, all are explosions. However, the explosion caused by the internal short circuit caused by overcharge does not necessarily occur at the time of charging.

According to the analysis of commonly mobile phone batteries, there is still a case, when the battery temperature is not high enough to burn the material, and the gas generated is not enough to break through the battery casing. We then terminate charging and take the mobile phone out.

At this time, the heat generated by many micro-shorts gradually raises the temperature of the battery. After a period of time, the explosion occurs. The common description of consumers is that when the phone is picked up, the phone is very hot, and it explodes after being thrown away. Although now have an automatic power-off function, but still a warm reminder, try not to charge for a long time.

Lithium-ion battery protection mechanism

Whether it is charging or discharging, we have a measure, usually using voltage to stop. Taking the ternary battery with lithium nickel cobalt manganese oxide and graphite anode as an example. When the battery charging voltage is higher than 4.2V, the danger will come quietly. The higher the voltage, the higher the danger. Because when the voltage is higher than 4.2V, the number of lithium atoms in the positive electrode material decreases, the structure of the stored atoms will collapse, which is permanent and irreversible.

If you continue to charge, the lithium-ion will generate lithium metal with electrons on the surface of the negative electrode, which is called dendrites. These dendrites will pierce the separator and short-circuit the positive and negative electrodes.

Overcharging will also increase the temperature. If the temperature exceeds 180°C, the electrolyte will decompose and generate a large amount of gas and heat. The shell will expand. After the rupture, oxygen enters and reacts violently with lithium metal and will explode. Therefore, the upper limit of the charging voltage is a protective measure.

The last line of defense for lithium-ion battery

Usually, our batteries, whether it is a mobile phone or a power battery, have a battery management system (or software) and a battery protection circuit board to monitor the battery voltage during battery charging and discharging to prevent overcharging, over-discharge, large

Current generation. If none of the above can protect the battery and avoid the explosion, it is only possible to reduce the damage through self-destruction. These need to be provided by the battery cell, such as the explosion-proof valve of the battery, anti-overcharge Fuse with SSD flip-flop, cut off the current, and pressure relief to reduce the risk of a battery explosion.

DGBell has special test chambers to deal with the overcharge and over-discharge of the battery and the occurrence of short circuits. We have been focusing on the safety test of the battery.

[dionholt2]

How to perform IEC 62133 testing on battery?

What is IEC 62133?

The International Electrotechnical Commission (IEC) was established in 1906 and has a history of 114 years until 2020. It is the earliest international electrotechnical standardization Organization established in the world and is responsible for the international standardization work in the fields of electrical engineering and electronic engineering.

The purpose of IEC is to promote international cooperation in standardization and related issues in the field of electrical and electronic engineering and to enhance mutual understanding between the world. IEC 62133 is an international standard, and various manufacturers produce according to internationally accepted standards.

The IEC 62133 standard is for the safety requirements of cell batteries and battery packs containing alkaline or non-acid electrolytes and portable sealed cell batteries and battery packs.

Which items are mainly tested by IEC 62133?

IEC 62133 mainly tests cells and batteries.

Cell: Continuous low-rate charging, vibration, temperature cycling, external short circuit, free fall, shock (collision), thermal shock, crush, low air pressure, overcharge, forced discharge, high rate charging protection function (lithium system), etc.

Battery: Vibration, shell stress at high temperature, temperature cycling, external short circuit, free fall, impact (collision), etc.

What machines are required by the IEC 62133 standard test? What’s the use of separation?

Thermal Abuse Test Chamber: Simulates the safety of batteries in extreme environments, requiring a temperature increase of 5 degrees ± 2 degrees per minute, up to 130 degrees. However, because the temperature will be as high as 130±2 degrees, so this link is relatively easy to fail link.

Servo Computer Battery Crush Tester: Artificially simulate the various performances of batteries in the daily crush, we provide hydraulic models and servo models, but if the funds are sufficient, I recommend you use the servo model because the data of the servo model is higher than the hydraulic model. It will be more accurate, and you can also control the speed through the computer.

Battery Internal Short Circuit Tester: This part of the short circuit test, DGBell is divided into two types, one is for a battery test, and the other is for a cell test.

Battery: According to standard requirements, store in an ambient temperature 55℃ ± 5℃. The battery pack is then short-circuited by connecting the positive and negative terminals with a complete external resistance of 80 mΩ ± 20 mΩ. The battery pack remains on test for 24 h or until the case temperature of battery pack declines by 20 you look after the utmost temperature rise, whichever is that the sooner. However, just in case of rapid decline briefly circuit current, the battery pack should remain on test for a further one hour after the present reaches a coffee end steady-state condition. This typically refers to a condition where the per-cell voltage (series cells only) of the battery is below 0,8 V and is decreasing by but 0,1 V in a 30-minute period.

Cell: According to standard requirements, store each fully charged battery at an ambient temperature of 55°C±5°C. The battery pack is then short-circuited by connecting the positive and negative terminals with a complete external resistance of 80 mΩ ± 20 mΩ. The battery pack remains on test for 24 h or until the case temperature of battery pack declines by 20 you look after the utmost temperature rise, whichever is that the sooner. However, just in case of rapid decline briefly circuit current, the battery pack should remain on test for a further one hour after the present reaches a coffee end steady-state condition. This typically refers to a condition where the per-cell voltage (series cells only) of the battery is below 0,8 V and is decreasing by but 0,1 V in a 30-minute period.

Vibration test system: Simulate the environment during the execution, manufacturing, assembly, transportation, and use stages, and to determine the ability of the product to withstand environmental vibration.

Shock Test System: This test is meant to determine whether or not the electric energy storage assembly can withstand a mechanical shock that may occur when in use in an electric vehicle.

Battery Drop Tester: Drop according to the height in the standard to test whether the battery will explode.

Temperature Control Battery Short Circuit Test Chamber: No open flame or explosion after testing the battery short circuit test.

Battery Crush Test Chamber: Each fully charged battery charged at the upper limit charging temperature specified in the standard, is immediately transferred and crushed between two flat surfaces at an ambient temperature. The force for the crushing is applied by a hydraulic ram exerting a force of 13 kN ± 1 kN. The crushing is performed in a manner that will cause the most adverse result.

Temperature cycling test chamber: Expose the battery to a preset test environment with alternating high and low temperatures. To avoid the impact of temperature shock, the temperature change rate during the test must be less than 20°C/min. At the same time, to achieve the effect of creep and fatigue damage, it is recommended that the test temperature cycle is 25 °C-100 °C or a cycle test of 0 °C-100 °C may be used according to the application of the product, and the exposure time is 15 minutes each.

It is worth noting that these tests are not in order, and each battery test is independent. However, each test requires the use of new batteries, which cannot be used in other tests. After completing this set of battery tests, if the data meets the requirements of IEC 62133, then your battery complies with IEC 62133 standards, which means that your battery quality is reliable and can be sold around the world.

[dionholt2]

Why do electric vehicle charging accidents occur frequently?

In recent years, electric vehicles have become more and more popular, but electric vehicle accidents have occurred more and more frequently. Therefore, we need to know why the charging of electric vehicles will suddenly catch fire or explode ?

Line aging

Electric vehicles have been used for a long time, and the connection lines in the vehicle are easily aging and short-circuited. If the wires in the vehicle are short-circuited, and the external temperature is too high, it is easy to burn.

The battery is a short circuit

In general, it is easy to attribute the self-ignition of electric vehicles to batteries.

Take lead-acid batteries, even if the internal temperature of the battery is high and a large amount of gas is generated, it will be released through the vent hole, so it will not explode easily.

Unless the battery has a long service life, the internal circuit is easy to short circuit, causing spontaneous combustion.

Doesn’t match the charger

If the charger doesn’t match the charger of the electric vehicle, it may also cause the electric vehicle to fire.

Many families now have more than one electric vehicle, and electric vehicle chargers of different brands should not be mixed, which will not only cause damage to the battery of the electric vehicle but also bury potential safety hazards.

Overcharge

Overcharge is also the main reason for the spontaneous combustion of electric vehicles.

In general, electric vehicles can meet the needs of users by charging for about eight hours.

In reality, many users simply charge the electric vehicle overnight for 12 hours or even longer to save trouble. This will not only have a positive effect but will reduce the performance of the battery.

The voltage is unstable

When multiple electric vehicles are charged at the same time, it will cause voltage instability, which can easily lead to safety accidents.

Charging environment

Many users don’t have a dedicated electric vehicle charging place, so they can only store electric vehicles in staircases, walkways, or push electric vehicles into the room for charging.

In the event of a fire in an electric vehicle, flames and thick smoke will block the safe exits and escape routes of the building, which can easily cause casualties or even mass casualties.

Therefore, DGBell proposed the following solutions to these problems:

The vehicle line is used for a long time and is prone to aging. It is recommended that users regularly check at the maintenance point within half a year to one year. Besides, after riding in high-temperature weather, you should put the car in the shade, and recharge it after the temperature of the car and battery drops.

According to the relevant technical standards, the service life of ordinary batteries in electric vehicles is 1.5-2.5 years, so users are advised to replace the batteries regularly, and they must go to regular stores to buy matching batteries, and do not choose inferior batteries.

Chargers of different brands are not mixed. If the charger is damaged, please go to a regular store to buy it.

Ensure the charging time of electric vehicles. When the battery power is 70%-80%, it should be charged in time. Generally, it is appropriate to charge 6-8 hours in summer and 8-10 hours in winter. The battery should not be over-discharged.

DGBell has a series of test chambers specifically for this electric vehicle battery test. We hope that our battery test equipment can reduce the accident problems caused by electric vehicles for you and protect your travel safety.

[dionholt2]

Division and Limitation of Environmental Testing

The simple division of environmental testing can be divided into “climate environmental testing”, “mechanical environmental testing” and “comprehensive environmental testing”.

Climate-related environmental tests include environmental stress tests such as temperature, humidity, and pressure, while mechanical environmental tests include environmental stress tests such as shock and vibration, and comprehensive environmental tests are stress tests that integrate climate and mechanical environmental factors.

Mechanical environmental test: Environmental stress: impact, vibration, collision, acceleration, high noise, high wind

Comprehensive Environmental Test: Environmental Stress: Environmental Factors Combining Mechanical Environment and Climate Environment

Climate environment test: Environmental stress: temperature and humidity, gas, salt fog, wind and rain, pressure, solar radiation

Of course, tests conducted using environmental test equipment cannot completely reproduce the environment in which the product is used and simulate all environmental factors. Here, the limitations of environmental tests must be understood.

An environmental test consisting of a single factor (temperature, humidity, pressure, vibration, shock, or a substance such as salt) is called a simple environmental test.

In fact, it is very difficult to create a completely single environment, and most test environments are very complicated.

Therefore, when designing the test conditions, the tester needs to select the most important environmental factor that has the greatest impact on the product, so the environmental test can only be an artificial environment that is still very different from the real environment.

In general, product defects are caused by the following aspects:

The concentration and diversity of raw materials, friction, wear, stress, heat, current, and electric field strength, these factors will affect the performance of certain aspects of the product;

Factors caused by product characteristics (raw materials, manufacturing processes, structural components, and mass production) during product design and manufacturing;

Stress is generated by the external environment.

Therefore, the test conditions must be based on specific product conditions, which are different for different products.

If the product under test has changed, the corresponding environmental test will also change.

[dionholt2]

Do you know what types of environmental testing chambers are ?

Environmental testing type

Environmental chamber testing usually uses a single-factor test and multi-factor combination test, which act on the products in a certain order.

To improve the accuracy and reliability of the test results, environmental tests have also begun to develop comprehensive tests, and actively develop large-scale multi-functional environmental test equipment that can simultaneously apply stress such as temperature, humidity, vibration, radiation, sand, wind, and rain.

The main types of environmental testing chambers :

Climate environmental testing chambers

Applicable standards are GB2423, GJB150A, GJB4, IEC60068, GJB1032, GJB322A, GJB360A, GJB548, GB4208, GJB899, TB3021, etc.

Temperature test chamber

High-temperature test chamber, low-temperature test chamber, temperature impact test chamber, temperature change testing chamber, rapid temperature change testing chamber (temperature change rate up to 15 degrees/min), high temperature aging testing chamber, temperature cycle testing chamber, benchtop temperature chambers, etc.

Humidity (humid)test chamber

Constant damp heat test chamber, alternating damp heat test chamber, high temperature and high humid test chamber, benchtop humidity chamber, etc.

Shell protection grade test chamber

IP42, IP44, P54, IP55, IP65, IP66, IP67, IP68 protection level certification, and testing chamber services;

Three-proof test chamber

Salt spray corrosion tester (neutral salt spray tester, alternating salt spray tester, acid salt spray tester), damp heat tester (constant damp heat, alternating damp heat), etc ;

Special tester

Simulated high altitude test chamber, solar radiation test chamber, rain spray test environmental chamber, sand and dust test chamber, benchtop environmental chamber, walk-in environmental chambers, etc.

Mechanical environment testing chambers

Applicable standards are GB2423, GJB150A, GJB4, IEC60068, GJB1032, GJB322A, GJB360A, GJB548, TB3058, GJB899, GB / T21563, ISO16750, etc.

Vibration tester

Sine vibration tester (sweep frequency endurance tester), random vibration tester, broadband random vibration tester, narrow-band random vibration tester, etc.

Shock tester

Thermal shock chamber, the semi-sine wave mechanical shock tester, after peak sawtooth wave shock tester, shock response spectrum tester, temperature shock chamber, etc.

Other test chambers

Drop tester (free fall, repeated drop), collision tester, acceleration tester, thermal cycling chambers, walk-in test chambers, etc.

Comprehensive environmental reliability testing chamber

The applicable standards are GB2423, GJB150A, GJB899, etc.

Temperature and humidity combined testing chamber, temperature, and humidity and vibration comprehensive test chamber (three comprehensive test chamber), etc.

[dionholt2]

UN Manual of Tests and Criteria Part III Subsection 38.3

What is UN Manual of Tests and Criteria Part III Subsection 38.3

In most of the guides of one equipment, you maybe find that it should be by the standard called UN Manual of Tests and Criteria Part III Subsection 38.3 ( also known as UN 38.3 Testing).

You must wonder what exactly it is.

Today’s guide will enable you to have a detailed knowledge of it.

Firstly, the UN 38.3 Testing Manual of Tests and Criteria is a collection of criteria, test methods, and procedures.

It is applied for the classification of dangerous goods according to the provisions of the “United Nations Recommendations on the Transport of Dangerous Goods, Model Regulations”.

Besides, it also finds usage in identifying chemicals presenting physical hazards according to the “Globally Harmonized System of Classification and Labelling of Chemicals” (GHS).

This manual has been regularly updated and amended every two years.

Since 01. January 2019 the 6. Revised edition of the UN Manual of Tests and Criteria, Amendment 1 is valid.

You could find the revised editions of Amendment 1 under this link:

https://www.unece.org/trans/areas-of-work/dangerous-goods/legal-instruments-and-recommendations/un-manual-of-tests-and-criteria/amend-to-rev6.html

Besides, if you want to find the English version of the UN 38.3 test manual, you could log in to the hyperlink as follows:

https://www.unece.org/trans/areas-of-work/dangerous-goods/legal-instruments-and-recommendations/un-manual-of-tests-and-criteria/rev6-files.html

UN 38.3 battery testing I am gonna introducing is part III of this manual, which describes in subsection 38.3.

It covers 8 test modules, which are also called T.1 to T.8 test:

T1 – Altitude Simulation (Primary and Secondary Cells and Batteries) T2 – Thermal Test (Primary and Secondary Cells and Batteries) T3 – Vibration (Primary and Secondary Cells and Batteries) T4 – Shock (Primary and Secondary Cells and Batteries) T5 – External Short Circuit (Primary and Secondary Cells and Batteries) T6 – Impact (Primary and Secondary Cells) T7 – Overcharge (Secondary Batteries) T8 – Forced Discharge (Primary and Secondary Cells)

The Application Scope of UN 38.3 Testing

UN 38.3 Testing can simulate significant environmental, mechanical, and electrical stresses to test lithium-ion batteries’ ability to withstand the unpredictable conditions incurred during transport.

As we all know, the lithium-ion battery is classified as a dangerous good.

They can pose a safety risk if not tested and properly packaged following the transport regulations.

The international regulation will differ if the batteries are transported by different means.

Therefore, before lithium-ion batteries can be brought to the market, they must have successfully passed certain tests.

These tests can simulate transport conditions like pressure, temperature, crush, humidity, etc.

Hence, they can help you ensure the safety of your lithium-ion battery or cells during shipping.

Lithium Ion Battery Testing Standards

There are mainly three standards for testing lithium-ion battery:

UN/DOT 38.3 5th Edition, Amendment 1 – Recommendations on the Transport of Dangerous Goods

If you want to ship a lithium-ion battery across the world by air, rail, road, or truck, you will need to ensure that your batteries have passed UN/DOT 38.3.

Popular in many countries’ shipments of dangerous goods regulations, this standard can ensure the transportation safety of all lithium-ion cells and batteries.

UN/DOT 38.3 covers 8 test modules, whose difficulty level differs a lot.

For example, the altitude test is intense and long-running, which is the easiest to pass.

IEC 62133

IEC 62133 is the standard in accord with international compliance.  UN 38.3 transportation testing (see the previous section) is an integral requirement but does not need to be repeated.

The standard includes four tests: 2.2 Molded Case Stress; 3.2 External Short Circuit; 3.3 Free Fall; 3.6 Overcharging of Battery

Compared to the integral requirements of UN 38.3, these tests are relatively easy to pass.

UL 2054

UL 2054 is an important U.S. compliance standard involving roughly double the number of tests found in the UN or IEC requirements: 7 electrical tests; 4 mechanical tests; 4 battery enclosure tests; 1 fire exposure test; 2 environmental tests.

UL has released the first edition of UL 62133, which chime in with IEC 62133, 2nd Edition. UL 2054 and UL 62133 compete for the same test space by nature although their requirements vary a lot.

[dionholt2]

What is thermal shock? What is the thermal shock chamber?

What is thermal shock?

Thermal shock means that due to the rapid heating or cooling, the object generates a large amount of heat exchange in a short time. When the temperature changes drastically, the object will produce a thermal shock. This phenomenon is called thermal shock.

When a metal material is subjected to rapid heating and cooling, a large temperature difference will be generated inside it, which will cause a large impact on thermal stress. This phenomenon is called thermal shock.

A large thermal shock generates thermal stress that can exceed the yield limit of the material and cause damage to the metal parts.

What is the thermal shock chamber?

A thermal shock chamber is a kind of structural material or composite material that can be tolerated in a continuous environment of extremely high temperature and extremely low temperature in an instant so that it can be caused by thermal expansion and contraction in the shortest time. Chemical changes and physical damage to the machine.

There are two main ways for DGBell’s thermal shock:

Thermal Shock Test Chamber (Two Zone): the thermal shock chamber has two chambers (high temperature zone and low temperature zone), the high temperature zone and the low temperature zone are filled with silicone oil, and the sample is placed in a hanging basket, which passes through the high temperature zone and low temperature of the hanging basket. The movement of the zone achieves the effect of hot and cold shocks.

Thermal Shock Test Chamber (Three Zone): The thermal shock chamber has three chambers (high temperature zone, normal temperature zone, and low temperature zone). During the test, the sample is kept in the normal temperature area, but the effect of cold and hot shock is achieved by the opening and closing of the damper in the high temperature area and the normal temperature area, and the damper in the low temperature area and the normal temperature area.

[dionholt2]

Lithium-ion battery copper foil crushing during testing

With the increasing popularity of electric vehicles, the safety and electrical performance of electric vehicles need more and more attention. If high-energy accidents such as collisions occur during the use of electric vehicles, the lithium-ion battery may undergo severe deformation, which may cause serious safety problems such as internal short-circuits in the lithium-ion battery.

When an internal short circuit occurs in a lithium-ion battery, 70% of the energy of the entire battery pack will be released through the short-circuit point within the 60s, causing a local temperature to rise rapidly, which in turn causes the decomposition of positive and negative active materials, electrolyte, etc., which lead to thermal runaway of the lithium-ion battery.

In order to ensure the safety of lithium-ion batteries under the above circumstances, people have designed rigorous squeeze tests to examine the safety performance of lithium-ion batteries in the event of huge deformation. The research shows that during the crush test, the deformation and uniform displacement of the electrode will occur first. With the increase of the deformation, the current collector will slip along the 45-degree slip line. Finally, the diaphragm is deformed too much, causing the diaphragm to fail, causing a larger area short circuit.

Once an internal short circuit occurs, it may lead to thermal runaway of the lithium-ion battery, and the resulting high temperature will burn the battery. Even if there is no thermal runaway, the local high temperature will still melt parts of the current collector, the separator, etc., so we need to study the structural changes of lithium-ion batteries in the crush test.

Later, it was discovered that copper foil will produce microscopic fragments during the crush test, and these fragments are difficult to find through traditional optical and electron microscopes. These hidden copper foil fragments may have a significant impact on the electrical performance and thermal runaway behavior of lithium-ion batteries. Broken copper foil may have the following effects on lithium-ion batteries.

Broken copper foil cannot assume the role of a current collector, causing the local active material to lose its effective connection with the conductive network.

Active materials and electrolytes will fill the gaps of broken copper foil, but they are not good electronic conductors and thermal conductors, so when a short circuit occurs here, it is difficult to conduct heat quickly.

In the squeezed area, due to the poor contact between the active material and the conductive network, the activity is reduced, or it cannot participate in the charge and discharge reaction, causing the capacity of the lithium-ion battery to decrease.

The broken copper foil will reduce the mechanical properties of the negative electrode

The final failure of the battery in the crush test is mainly caused by the failure of the positive electrode and the separator.

At the beginning of the short circuit, the Al foil / positive electrode active material is in contact with the copper foil fragments/graphite active material of the negative electrode.

The best choice for testing this type of lithium battery is to use the battery crush nail penetration tester so that you can not only observe the reaction of the battery during the crush but also see what happens to the battery during the nail penetration.

[dionholt2]

IEC 60068 Testing Standard

Do you know the IEC 60068? Today’s guide will give you a brief introduction to the IEC 60068.

The Definition of the International Electrotechnical Commission (IEC).

The International Electrotechnical Commission (IEC) is an international organization for environmental testing standardizations. It is also the home to all national electrotechnical committees (IEC National Committees). The tested products of IEC concentrate on the electrical and electronic fields. To promote international exchange and friendly cooperation, IEC releases ” IEC Publications”, which includes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS), and Guides.

What is IEC 60068?

As the natural weather is changeable and unpredictable, the electronic products are easily exposed to the implication of environmental conditions, such as extreme cold and dry heat.

Under such circumstances, IEC 60068 is a great aid.

IEC 60068 is a method of environmental testing, specific to the individual types of samples.

Specifically, IEC 60068 is an international standard to assess the ability of electrotechnical products and electronic equipment under such conditions for measurements and tests.

You can use this method to conduct a lot of regulatory and reproducible environmental, climatic, dynamic, and combined tests under standard atmospheric conditions.

Moreover, IEC 60068 is summarized on the basis of authoritative international engineering experience and judgment. It is available in English and French.

It is primarily formulated by the IEC Technical Committee 50 to test the two kinds of properties of samples:

a) the practical running performance in specified limits of temperature, humidity, other environmental conditions, and combinations of these conditions;

b) the ability to withstand rude handling during transportation, storage, and installation.

Three Parts of IEC 60068.

IEC 60068-1: General and guidance.

IEC 60068-2: Tests.

IEC 60068-3: Supporting documentation and guidance.

Now, I will introduce each of them in detail one by one.

Part 1: IEC 60068-1.

IEC 60068-1 was published in the year 2013. It experienced 12 revisions from the year 1960 to the year 1992. It is available in English and French.

IEC 60068-1 is a collection of methods for environmental testing and stipulates various atmospheric conditions for measurements and or other activities.

This standard finds usage in assessing the ability of specimens to perform under anticipated conditions during transportation, storage, and handling.

The tested samples of this standard are mainly electrotechnical products. But it is not confined to these products and may play a vital role in other fields.

The following chart is the 12 revisions of IEC 60068-1. This ninth edition is published in 1988, which cancels and replaces the eighth edition. The main changes with respect to the previous edition are listed below: – the updated normative reference list. – indication of normative and informative annexes. – new informative Annex C, Environmental test tailoring.

This testing method is available in the form of pdf. But there is a charge for downloading. therefore please click the IEC official website to download.

Part 2: IEC 60068-2.

IEC 60068-2 is published in the year 2020. It is available in English and French.

The IEC 60068-2 is a collection of more than 60 standards. These standards are applicable to a climatic category, such as vibration, shock, change of temperature, dry heat, salt mist, dust and sand, mold, and the combination of them.

I will not introduce them one by one. And you can have a rough understanding of each standard from its name.

Let us take IEC 60068-2-5 Solar Radiation Testing as an example.

From its name, you can infer that this method evaluates the expected effects of solar radiation on products. It illustrates ways of testing equipment or components under simulated solar radiation and water spray environments.

This testing method is available in the form of pdf. But there is a charge for downloading. therefore please click the IEC official website to download.

Part 3: IEC 60068-3.

IEC 60068-3 is available for English and French. This testing method is available in the form of pdf. But there is a charge for downloading. therefore please click the IEC official website to download.

IEC 60068-3-1 Ed.2.0 b: 2011

Environmental Testing -Part-3-1: Supporting Documentation And Guidance -Cold And Dry Heat Tests.

IEC 60068-3-3 Ed. 2.0 b: 2019

Environmental Testing -Part-3-3: Supporting Documentation And Guidance – Seismic Test Methods For Equipment.

IEC 60068-3-4 Ed. 1.0 b: 2001

Environmental Testing – Part 3-4: Supporting Documentation And Guidance – Damp-Heat Tests.

IEC 60068-3-5 Ed. 2.0 b: 2018

Environmental Testing – Part 3-5: Supporting Documentation And Guidance – Confirmation Of The Performance Of Temperature Chambers.

IEC 60068-3-6 Ed. 2.0 b: 2018

Environmental Testing – Part 3-6: Supporting Documentation And Guidance – Confirmation Of The Performance Of Temperature Humidity Chambers.

IEC 60068-3-7 Ed. 1.0 b: 2001

Environmental Testing – Part 3-7: Supporting Documentation And Guidance – Measurements In Temperature Chambers For Tests A And B ( With Load).

IEC 60068-3-8 Ed. 1.0 b: 2003

Environmental Testing – Part 3-7: Supporting Documentation And Guidance – Selecting Amongst VibrationTests.

IEC 60068-3-11 Ed. 1.0 b: 2007

Environmental Testing – Part 3-11: Supporting Documentation And Guidance – Calculation of Uncertainty of Conditions In Climatic Test Chambers.

IEC 60068-3-13 Ed. 1.0 b: 2016

Environmental Testing – Part 3-11: Supporting Documentation And Guidance- On Test – T Soldering.

[dionholt2]

Small Environmental Test Chamber Buying Guide

What is Small Environmental Test Chamber?

Small Environmental Test Chamber is a small & affordable benchtop environmental chamber for simulating temperature and humidity environments.

Small Environmental Test Chamber is also known as the benchtop environmental chamber, benchtop chamber, environmental chamber small, and a small chamber.

A benchtop environmental chamber enjoys great popularity in the current market. For the reason that a small environmental test chamber boasts a small, desktop, portable, stable performance, and multifunctional system.

Moreover, despite being small, a benchtop environmental chamber is a compact and multi-purposed chamber that integrates all functions of other chambers, i.e. benchtop humidity chamber ( also known as the small humidity chamber or humidity chamber small), benchtop temperature chamber (also known as the small temperature chamber), benchtop thermal chamber.

A benchtop environmental chamber finds wide usage in testing various small products, such as electronic, automotive, manufacturing, food, cosmetics by means of simulating temperature and humidity environment conditions. This benchtop chamber is also popular for R&D (research and development) or private using.

Small Environmental Test Chamber Applications

In the modern industry, it is inevitable that many electrical and electronic products or materials suffer the implication of high-temperature, low-temperature, and temperature change in the cycle.

Under such circumstances, the small environmental test chamber comes to show its value. You must wonder why a small environmental test chamber is so important in the testing.

I can tell you that the benchtop chamber is specifically designed for the machine manufacturers to test your sample’s adaptability in the process of storage and application against such conditions.

The benchtop chamber maintains the temperature in the workshop at the same level by keeping the air circulating.

To minimize the implication of the radiation, the difference between the actual temperature of the inner wall of a benchtop chamber, and the scheduled temperature in your experiment should be less than eight percent.

Moreover, the samples will not suffer direct radiation from the heating and cooling components in the benchtop chamber.

On the whole, a small environmental test chamber achieves high performance to meet your environmental testing needs. If you want to make relevant experiments, this benchtop chamber is definitely the first choice.

Benefits of Small Environmental Test Chamber

#1 Save time

Time is money, efficiency is life. Larger chambers can take a long time to complete testing when you need to run fast. And a small environmental test chamber is totally different. The benchtop environmental test chamber can be quickly tested due to its small size. Therefore, a benchtop environmental test chamber is somewhat beneficial to save time compared to the walk-in environmental test chamber. The spared time will help you continue to complete the next test with a small environmental test chamber.

#2 Reduce movement

The benchtop environmental test chamber requires less movement. If the benchtop environmental test chamber is large, the manpower required to move is very large. Employees spend a lot of time on the shift of mobile devices, resulting in less time for their other work. Small and easy to move, a small environmental test chamber will spare you a lot of trouble. As a result, the benchtop environmental test chamber has increased production space and production opportunities to some extent.

#3 Energy saving

Unlike other large machines, a small chamber requires fewer capital investments. Besides, a small chamber is also featured by energy conservation. Reducing the cost of electricity bills means that you can put this part of the money into other places, such as holiday bonuses, salary increases, and so on. In addition, this will help promote the development of the company in the long term.

#4 Environmental protection

With the deterioration of the environment in recent years, people are paying more and more attention to environmental protection. If your small environmental test chamber is environmentally friendly and energy-efficient, I believe that consumers will be happy to do business with manufacturers who care about the planet. The small chamber is so small that it will discharge fewer waste gases. Therefore, a small chamber is an optimal selection for yourself and the planet!

#5 Compact chamber

A small environmental test chamber may be small but it has all the vital organs. The compact size of the small chamber allows you to place it in any location after your heart. In addition, a small chamber also helps you save space for heavier test equipment.

#6 High precision.

A high-precision small chamber can reduce the error range of temperature drop. You can be sure that your test represents the worst conditions you have chosen. Essentially, a small chamber is difficult to heat evenly and precisely over a long period of time in the chamber. Using a small chamber, you’ll find your device heats up quickly and stays even. Besides, the high degree of benchtop stability is also a highlight.

#7 DUT Record

A small chamber with DUT recording capability can verify that the required conditions are met. Testing requires not only precision but also data validation. The small environmental chamber gives you the confidence to get accurate results. In addition, a small environmental chamber requires less energy to reach the conditions you need.

#8 Automation

The small environmental chamber has a touch screen that can be programmed with a PLC, a USB interface, and an RJ485 interface, which is very convenient for collecting data. In addition, a small environmental chamber can also be connected to computer control and dedicated network control software. By doing so, a small environmental test chamber will facilitate remote monitoring and improve security. In this way, the small environmental chamber not only saves time in collecting data but also improves safety.

We have 15 years of experience in the production and research and development of an environmental test chamber and are professional environmental test equipment manufacturers.

Difference Between the Small Chamber and the Other Chambers With Single Function.

Firstly, let me introduce the definition of benchtop testing. As we all know, a product must undergo rigorous testing to remove any bugs. If you want to optimize your samples, you must conduct relevant testing for your product. During the experiment, the assistance of a small environmental test chamber will enable you to get twofold results with half the efforts. In other words, a small environmental chamber will help you manufacture superior products, which will bring you a steady stream of customers.

A benchtop testing will help you determine what features and disadvantages your product has. Next, in benchtop testing, you will find the shortcoming of your product.

In a product research and development project, debugging can consume in excess of 50% of a project’s resources. To avoid this significant expense, benchtop testing is indispensable. It will help the chamber manufacturers to find the product with major bugs. Hence, they can fix it later.

As I mentioned above, the benchtop chamber integrates all functions of the benchtop humidity chamber ( small humidity chamber or humidity chamber small), benchtop temperature chamber, benchtop thermal chamber.

And then, I will introduce these three chambers in short.

Benchtop Humidity Chamber.

You can call the benchtop humidity chamber a small humidity chamber or humidity chamber small. The benchtop humidity chamber has such alternative names as the small humidity chamber or humidity chamber small. It is very popular for labs and product manufacturers to test the various small electronic products and materials with simulating humidity environment conditions.

It is clear that you can only employ the benchtop humidity chamber to test the performance of the product’s capability against the damp conditions.

Benchtop Temperature Chamber.

Similarly, the benchtop temperature chamber has another name, which is a small temperature chamber. The benchtop temperature chamber (small temperature chamber) finds wide usage in testing the heat resistance of your products.

The benchtop temperature chamber (small temperature chamber) also boasts a single function. The small temperature chamber) is very popular for labs and product manufacturers to test the various small electronic products and materials by simulating various temperature environment conditions.

Thermal Shock Chamber.

Thermal Shock Chamber can meet the greater demands for highly accelerated stress tests (HAST) of electrical and electronic components.

The thermal chamber includes hot and cold zone to achieve rapid product temperature change for thermal shock. The thermal shock chamber has an energy-efficient design with Japanese or German technology. Hence, the thermal chamber can reduce electricity consumption by 20%.

On the whole, the benchtop chamber is much superior to the small humidity chamber, benchtop temperature chamber, and the thermal chamber in the term of price, functions.

Size of a Benchtop Environmental Test Chamber

When you purchase a small environment chamber, you first need to determine the size of the small chamber you need. The test space required for different test products is different. So the size of the small environmental chamber is something you need to pay special attention to. The small environment chamber is available in several sizes: miniature, small, medium, and large.

Announcements of Operation

You should use a small environmental chamber in strict accordance with the relevant operating procedures and instructions.

Some hazardous substances like explosives, combustibles, inflammable, and flammable gases are not allowed to appear in the benchtop chamber.

Before pressing the ON button, firstly you should check the power supply equipment to ensure that there is no wire falling off. And then, if the indicator light on the condensers XG3-G plugged in the electric board shows green. That represents that you link wires correctly. Finally, you should make sure that the small environmental chamber is placed on the dry ground.

The soaked materials must be drip-dried outside the small environmental chamber before you put it into the chamber.

It is unreasonable for you to put a lot of samples at one time. For the reason that this approach will affect the gas flow, leading to inaccurate experimental data.

 If you want to fetch the sample in the process of an experiment, you should wear heat-resistance gloves or use a pick-up tool.

When a small environmental chamber is running, please do not put anything on the top of the machine. Because this will hinder the dissipation of the small environmental chamber.

Conclusion

Finally, we have come to the end of our guide today.

After reading this guide, I believe that you have a general understanding of a small environmental chamber.

I believe that you can buy a small environmental chamber for your specific needs.

Now, I would like to hear from you too:

What kind of small chamber would you prefer? If there is not a small chamber after your heart, please contact us at any time. We will produce a small chamber in the specification and size you need.

If there is something you believe I have missed or failed to explain to your satisfaction, please leave your message below.

In addition, if you want to know more minute information, such as a small chamber price, you can contact us directly. The contact information is available at the bottom of the page.

Our team will be happy to serve.

[dionholt2]

Introduction and test of portable energy storage battery

A portable energy storage battery is also called a large mobile battery, an outdoor emergency battery, and an outdoor uninterrupted battery.

The portable energy storage battery was developed to solve the power shortage. This energy storage battery can be powered independently from the grid and can efficiently use solar power. The lithium battery has a large capacity for electricity storage, which is then converted into various AC and DC power for people’s daily use.

The concept of the portable energy storage battery is Power Station, which has power generation, power storage, substation, power supply, monitoring, software and hardware protection, frequency modulation, fault self-test, fault recovery, and several major functions. Miniaturization of energy storage power stations.

The biggest feature of the “portable energy storage battery” is that it can get rid of the restrictions of “wires” and provide various electrical appliances with long-term power supply, alternating current and direct current, and is lightweight and portable. &nsph;

Scope of portable energy storage battery

Flood control emergency command, power emergency repair, emergency command vehicle, mobile communication vehicle, outdoor construction, field exploration, natural disaster site rescue, car start-up, emergency reserve, and other various large-scale construction operations, accident repair, emergency rescue and other scenes for mobile lighting.

At the same time, it can be used in mountainous areas, pastoral areas, field trips, travel, and leisure, or in cars and ships without electricity. They can be used as DC and AC batteries.

It can also be used in emergency rescue, emergency battery, backup battery, and other usage scenarios.

Then the safety of portable energy storage batteries is also a part of our attention. We need to test the energy storage batteries to ensure that electricity can be safely provided in various environments.

There are many aspects of portable energy storage batteries that need to be tested, such as thermal runaway, impact, crush, rain, short circuit, drop, etc. Here we mainly introduce crush, short circuit, thermal runaway.

Energy storage battery crush test

Examine the safety performance of the battery through the crush test. After the test, the battery should not fire or explode. Crush the battery directly until the battery case ruptures or shorts internally (the battery voltage becomes 0V).

The servo computer battery crush tester simulates the situation of squeezing various types of lithium batteries during use. Artificially present different situations that may occur when squeezing a battery and use the computer to operate, more precisely.

Storage battery short-circuit test

Check the safety performance of the battery through the short circuit test. There is no open flame or explosion after the battery short circuit test. According to the short-circuit test requirements, the short-circuit current must be less than 5mΩ to reach the maximum current.

Storage battery thermal runaway test

The thermal runaway test is used to verify the safety performance of the battery. The thermal runaway test is actually to ensure that when the thermal runaway of the monomer occurs, the system must have accurate feedback. The feedback signal must not be missed or falsely reported. Ensuring that the battery system’s safe handling plan has sufficient start-up time and requires that the battery system has a certain ability to inhibit or delay thermal runaway diffusion to ensure that personnel can assess the severity of the accident and reserve sufficient evacuation before its destructive power threatens personal safety time to prevent further harm to the person.

We hope our battery test chamber will help you keep your portable energy storage battery safe.

[dionholt2]

Introduction of the principle of climatic environmental test chamber

Here is our article in the past: what is an environmental test chamber and how does it work, now today we want to tell you the introduction of the principle of the climatic environmental test chamber.

The working volume of the climatic environmental test chamber should be at least 3 to 5 times the volume of the tested product. The reasons for this provision are as follows:

After the tested product is placed in the climatic chamber, it squeezes a smooth channel. The narrowing of the channel will increase the flow rate of the airflow and accelerate the heat exchange between the airflow and the tested product. This is inconsistent with the reproduction of environmental conditions, because in the relevant standards, as follow:

a) For temperature-related environmental tests, the air velocity around the test specimen in the test chamber should not exceed 1.7 m/s to prevent the test specimen and surrounding climate from generating unrealistic heat conduction.

b) The average wind speed in the test chamber is 0.6-0.8m/s, not exceeding 1m/s.

When meeting the space and area ratios specified in two points a) and b), the wind speed of the flow field may increase by (50~100)%. The average maximum wind speed of the constant damp heat test chamber is (1~1.7) m/s, which meets the requirements of the standard.

If the volume or upwind cross-sectional area of the test piece is increased without restrictions during the test, the airflow wind speed during the actual test will increase to exceed the maximum wind speed specified by the test standard, and the validity of the test results will be doubted.

The accuracy indexes of the environmental parameters (such as temperature, humidity, salt fog settling rate, etc.) in the working chamber of the climate chamber are the results of testing under no-load conditions. Once the tested product is placed, it will affect the uniformity of the environmental parameters in the working chamber of the test chamber, and the larger the space occupied by the tested product, the more serious this effect will be.

The actual test data shows that the temperature difference between the windward and leeward surfaces in the flow field can reach 3-8℃, and in severe cases, it can be as high as 10℃. Therefore, the two requirements a) and b) must be met as much as possible to ensure the uniformity of the environmental parameters around the tested product.

According to the principle of heat conduction, the temperature of the airflow near the wall of the chamber usually differs from the center temperature of the flow field by 2 to 3℃ and may reach 5℃ at the upper and lower limits of high and low temperatures.

The temperature of the test chamber wall of the high and low temperature chamber is different from the temperature of the flow field near the chamber wall by 2 to 3℃ (depending on the structure and material of the test chamber wall).

The large the difference between the test temperature and the external atmospheric environment, the large the above temperature difference. Therefore, the space within a distance of 100-150 mm from the test chamber wall is unusable space.

DGBell is a climatic chamber manufacturer, environmental test chamber manufacturer, all the climatic chambers price, environmental chambers price, etc. are the factory price, our test chambers are according to the un38.3 standard. If you are interested in the test chamber, please don’t hesitate to contact us at: https://belltestchamber.com/contact-us

[dionholt2]

Walk in Environmental Chamber - Part 2

Three Main Types of Walk In Environmental Chamber

The walk in environmental chamber ( also known as walk in chamber) is a multi-functional machine that can be used in experiments for sundry purposes, such as humidity experiment, temperature experiment, and the combination of them. Next, I will briefly introduce the walk in humidity chamber, walk in stability chamber, and walk in temperature chamber for your reference.

If you just want to test the humidity resistance of large objects, a walk in humidity chamber is enough. Similarly, if you just want to identify the temperature resistance of large samples, a walk in temperature chamber is enough. Therefore, I will list the three main types of walk in environmental chamber for your reference.

Having learned the detailed information of each of them, you can reasonably buy the chamber you need without spending an unnecessary amount of money.

Walk In Humidity Chamber

The Walk In Humidity Chamber is also known as the walk in humidity tester or the walk in humidity cabinet. The Walk In Humidity Chamber is designed by the walk in environmental chamber supplier to precisely simulate or control the desired humidity environment for the properties testing of various products.

Specifically speaking, firstly, the Walk In Humidity Chamber is engineered to ensure the best quality of your product before you bring them into the market.

Secondly, the Walk In Humidity Chamber is a piece of useful equipment with the international quality standard. The walk in humidity chamber is made of corrosion-resistant stainless steel and fireproof glass wool insulation.

With the help of Walk In Humidity Chamber, you can put a tested product at a designed humidity level within this machine.

Moreover, the Walk In Humidity Chamber finds wide usage in a variety of industries, such as food, metal, electrics that are easily exposed to damp conditions. You can tell the significance of a Walk In Humidity Chamber from wide application of it on all kinds of industries and laboratories.

Finally, the Walk In Humidity Chamber is available in various sizes and can be also customized.

On top of that, our Walk In Humidity Chamber is characterized by many merits as follows:

1.Accurate Humidity Control.

The walk in humidity chamber is constructed with the automatic humidity control system. Only by setting the time in whatever way you want, can you conduct many groups of contrast experiments. With the help of a walk in humidity chamber, you can get the most accurate and authoritative experiment outcomes.

2. Easy for Operation.

The interior part of a walk in humidity chamber should be constructed at a reasonable height that is convenient for the user to dispose of samples.

3. Sensitive Humidification System.

The main function of a walk in humidity chamber is to set off the moisture through the inlet positioned underneath a chamber. Therefore, this part must be up and running in the shortest time as long as you touch the ON button.

4. Illuminating System.

As the walk in humidity chamber is an enclosed machine. Therefore, a walk in humidity chamber must be equipped with a complete illumination system for observing the tested products.

5. Even Humidity Distribution.

As the experiment data must be highly accurate, there must be no deviation from every step in a walk in humidity chamber.

The walk in humidity chamber 

Walk In Stability Chamber

The walk in stability chamber is developed by the walk in stability chamber manufacturer for heat and cold resistance tests in the defense industry, aerospace industry, automotive components, electronic components, plastics, chemicals, pharmaceuticals, and related products.

The walk in stability chamber mainly provides large-scale temperature and humidity test environment space for large parts, semi-finished products, and finished products for the industry.

Besides, the walk in stability chamber is also suitable for testing test equipment with large quantities and large volumes.

Compared with other walk in stability chambers, our walk in stability chamber consists of SUS#304 stainless steel plate and color steel plate. More importantly, our walk in stability chamber easy to assemble and disassemble.

On the whole, our Walk In Stability Chamber is a useful equipment with the international quality standard.

The walk in stability chamber is used for heat and cold resistance tests in the defense industry, aerospace industry, automotive components, electronic components, plastics, chemicals, pharmaceuticals, and related products.

With the help of Walk In Stability Chamber, you can put a tested product at a designed stability level within this chamber to test the performance of it.

By the way, our Walk In Humidity Chamber is available in various sizes and can be also customized. The walk in stability chamber is featured by many traits as follows:

With the combination of the library unit, the internal volume can be arbitrarily enlarged and easy to assemble and disassemble. It can be designed and matched according to the customer’s needs, which is convenient for customers to follow mobile devices.

The walk in stability chamber is constructed with SUS#304 stainless steel plate and color steel plate. The structure of the walk in stability chamber is firm. In addition, the structure is simple, waterproof, and beautiful.

The ceiling blowing type is adopted to reduce the influence of the wind speed in the walk in stability chamber on the sample. At the same time, the requirement of low wind speed and high uniformity can be achieved.

The large and bright window is equipped with high-intensity indoor explosion-proof fluorescent lamps.  Hence the users can observe the condition inside the walk in stability chamber.

All-round safety protection devices and power failure memory ensure the safety of the machine itself and the user. A comprehensive protection device, when an abnormality occurs, the controller screen automatically displays the fault status, cuts off the power switch, and provides troubleshooting methods.

Walk In Climate Chamber

A walk in climate chamber is also called a climatic chamber or climate chamber.

It can artificially replicate conditions that machinery, materials, devices, or components might be exposed to. It is also used to accelerate the effects of exposure to the environment, sometimes at conditions not actually expected.

The walk in climate chamber can serve roles as following:

as a stand-alone test for environmental effects on test samples.

as preparation of test specimens for further physical tests or chemical tests.

as environmental conditions for conducting testing of specimens.

Conclusion.

Finally, we have come to the end of our guide today.

After reading this guide, I believe that you have a general understanding of a walk in environmental chamber.

I believe that you can buy a walk in environmental chamber for your specific needs.

Now, I would like to hear from you too:

What kind of Walk In Environmental Chamber would you prefer? If there is not a walk in environmental chamber after your heart, please contact us at any time. We will produce the walk in chamber in the specification and size you need.

If there is something you believe I have missed or failed to explain to your satisfaction, please leave your message below.

In addition, if you want to know more about a walk in environmental test chamber price or you are looking for a suitable Walk In Chamber Manufacturer ( also known as Walk In Environmental Chamber Supplier).  you can contact us directly. As a responsible Walk In Chamber Manufacturer or a Walk In Environmental Chamber Supplier with years of professional experience, we are definitely trust-worthy.

By the way, the contact information is available at the bottom of the page.

We sincerely welcome your consultation and purchase.

[dionholt2]

Walk in Environmental Chamber - Part 1

Do you lack relevant reference information about purchasing a suitable walk in environmental chamber ( also known as walk in chamber)? Or, you maybe have a smattering knowledge of the walk in chamber when you want to buy a walk in environmental chamber ( also known as walk in chamber).

Don’t be worried, here is a piece of good news for you. Today’s guide is designed to take you through the significant aspects of the walk in environmental chamber ( also known as walk in chamber) before you are resolved to buy one or not.

Specifically, it will cover the application, specification, working principle, and every other relevant information regarding The walk in chamber.

Besides, I will attach a hyperlink about the Walk In Stability Chamber for your reference. https://belltestchamber.com/walk-in-stability-chamber-guide.html

Now, let us get into the topic of today.

Please read on.

Definition of Walk In Environmental Chamber

Walk In Environmental Chamber is also known as the walk in chamber or walk in environmental test chambers.

The walk in chamber is designed for identifying your products’ properties to cope with the exterior factors, i.e. the heat, cold, dryness, humidity, and so on.

The walk in chamber is also developed to control quality and assist in the implementation of R&D work across all industries.

Walk In Chamber finds wide usage in industries, such as national defense, aerospace, automobile parts, electronic and electrical components, plastics, telecommunications equipment.

In an experiment, the tested products are various. Similarly, each kind of sample comes into a variety of sizes or numbers. And these samples may be large and odd-shaped.

When you want to conduct an experiment in a commodious walk-in room with designed humidity and temperature together with your large objects. A Walk Environmental Chamber ( also known as walk in chamber) will be your first and optimized choice.

Walk In Environmental Chamber Price

The walk in environmental chamber price is determined by various factors, such as the power of this machine itself, the brand, and configuration.

The walk in environmental chamber price is also affected by market demand, weather conditions, government control, and other factors.

1.  The Power of a Walk In Environmental Chamber: It is a key factor in determining the price of a Walk-in Environmental Chamber. The walk in chamber with different power differs a lot in terms of the price.

2. The Brand of a Walk In Environmental Chamber:  If the power is the same, but the brand is. There will be also a huge difference in the price of a walk in chamber.

Generally speaking, the walk in environmental chamber price of the import company will be more expensive than that of the joint venture, which is more expensive than that of the domestic company.

3. The Functional Difference: the walk in chamber equipped with different functions varies in the matter of price.

4. Practical Demand: With the booming economy, the industries are in the full swing. The current market is so highly competitive that all products upgrade rapidly. That, in turn, demands more durable and highly cost-effective products. Therefore, you need a walk in chamber to help you constantly optimize your product.

Established in the year 2005 in Guangdong, DGBell enjoys 15 years of experience in manufacturing the Battery Safety Test Equipments & Environmental Test Chambers.

We provide a variety of walk in environmental chamber ( also known as walk in chamber) for different purposes.

Moreover, our walk in chamber is in strict accordance with the international standard and authority regulation rules.

All of our products are for sale at Factory Price.

Walk In Environmental Chamber for Temperature Humidity Test

The Walk In Environmental Chamber ( also known as walk in chamber) is specifically designed to meet the large-scale test applications that require accurate and controlled temperature and humidity.

The Walk In Environmental Chamber ( also known as walk in chamber) is manufactured with so superior stainless steel that it can test the large components and products. It boasts various optional functions that are of great use for different test standards and requirements.

With the help of a Walk In Environmental Chamber (also known as walk in environmental test chambers), you can keep this chamber running for a given time at a consistent temperature with or without humidity.

The walk in chamber enables you to make temperature unchangeable while constantly adjusting humidity or vice versa.

That means you can control the variable to ensure the accuracy of your experiment data and rich it simultaneously.

Walk In Environmental Chamber for Battery Test

As the world we live in become more modern, the requirements of green technology are increasingly emergent.

It is clear that the battery has served as an indispensable part of our life. You can see that it is widely used everywhere, i.e. handheld electronic devices, laptop computers, tablets, and so on.

You know, all things are closely interlinked and compensate for each other. The emergence of the battery has also promoted the flourishing of other industries.

As a testing tool, a Walk In Environmental Chamber ( also known as walk in chamber) plays a vital role in testing the physical and practical capabilities in the Walk In Environmental Test Chamber. By doing so, you can find faults in your product before bringing it to the public.

A battery is like a small screw. It is crucial in linking other parts and keep the whole product in the normal operation.

Therefore, please give priority to the quality inspection of the battery. Now, our Walk In Environmental Chamber ( also known as walk in chamber) is available for 5 particular purposes. I will list them below.

In addition, we are also the walk in stability chamber Manufacturer. But you should provide us the detailed information about the conditions necessary for your stability experiment. And then we can decide whether we can manufacture it or not.

[dionholt2]

Humidity Chambers: The Blueprint Guide

Whether you are looking for information of any kind on the humidity chamber.

Or, whether you have difficulty in finding a suitable humidity Test chamber.

Here is a piece of good news:

This article will give you some insight into the humidity chamber (also known as humidity test chamber) in an all-round way.

Whatever it is that you’re looking for, you’ll have a general understanding of the humidity test chamber. Maybe, the information you have glanced over is serviceable for you in the future.

Now, let us get into the main topic of today.

Today’s guide covers the definition, working principles, specification, alongside other correlative information relevant to the humidity chamber or humidity test chamber.

Please read on.

What is humidity chamber?

The Humidity Chamber is also known as the humidity cabinet, humidity control chamber, humidity calibration chamber, or humidity test chamber.

The humidity test chamber is designed to precisely simulate or control the desired humidity environment for the properties testing of various products.

Specifically speaking, firstly, the humidity test chamber or the humidity control chamber is engineered to ensure the best quality of your product by using corrosion-resistant stainless steel and fireproof glass wool insulation.

Secondly, the humidity cabinet is useful equipment with the international quality standard. It can put a tested product at a designed humidity level within this chamber.

Moreover, the humidity test chamber finds wide usage in a variety of industries, such as food, metal, electrics that are easily exposed to the damp conditions.

Finally, the humidity cabinet is available in various sizes and can be also customized.

Seven Features of a Humidity Test Chamber

High performance and easy operation

Fireproof stainless steel exterior.

Accurate sensors.

Touch-screen programmer

Reach high levels of relative humidity (80-90% RH) in a few minutes.

Superior glass wool insulation.

Auto-stop system to stop the chamber at the set time.

How to Select a Right Humidity Chamber?

A humidity chamber (also known as humidity control chamber) is an essential tool for testing the physical and chemical properties of materials across all industries. In the current market, the kinds of humidity chamber or humidity control chamber are various. You maybe struggled with which one you should choose when you’re choosing a humidity chamber. Today, I will list five essential elements to help you purchase the most suitable humidity cabinet.

1.Accurate Humidity Control.

The humidity cabinet should be constructed with the automatic humidity control system. Only by setting the time in whatever way you want, can you conduct many groups of contrast experiments. With the help of a humidity calibration chamber, you can get the most accurate and authoritative experiment outcomes.

2. Easy for Operation.

The interior part of a humidity test chamber should be constructed at a reasonable height that is convenient for the user to dispose of samples.

3. Sensitive Humidification System.

The main function of a humidity test chamber is to set off the moisture through the inlet positioned underneath a chamber. Therefore, this part must be up and running in the shortest time as long as you touch the ON button.

4. Illuminating System.

As the humidity test chamber is an enclosed machine. Therefore, a humidity test chamber must be equipped with a complete illumination system for observing the tested products.

5. Even Humidity Distribution.

As the experiment data must be highly accurate, there must be no deviation from every step.

Key Points on the Selection of a Humidity Chamber Manufacturer?

As an old saying goes, the man was afraid of choosing the wrong job, and the woman does not want to marry a good-for-nothing husband.

However, As a purchasing agent, you must be reluctant to meet incompetent or poorly cooperative manufacturers. If you engage in business with such a manufacturer, they may cause trouble for your company, such as a delivery extension.

More seriously, an irresponsible manufacturer may hinder your company’s development, even causing great loss to company reputation and financial status. In this way, we can say that responsible and reliable manufacture will serve as a contributor to your company growth, while an irresponsible manufacturer is like a nightmare.

In fact, the majority of purchasing agents have such disagreeable experience in dealing with such manufacturers. Therefore, it is of significance for a purchasing agent to choose a good manufacturer. Now, I will give you several suggestions to reduce the probability of the wrong choice.

Short-term criteria on a Humidity Chamber Manufacturer Selection .

If you just want to choose a humidity chamber manufacturer as a short-run business partner, the following factors should be given full priority: the reliable and first-rate product quality, low cost, timely delivery, thorough service procedures ( including services on the installation, training, maintenance, upgrade, and technical assistance), and company’s ability to perform the contract.

Long-term criteria on a Humidity Chamber Manufacturer Selection.

If you want to establish a long-term friendly business relationship with a humidity chamber manufacturer, the following merits of humidity chamber manufacturer should be taken into consideration: the sound quality management system, advanced machinery and equipment, stable capital turnover, orderly internal organization and management system and the stable number of employees.

I reckon that you should consider these two criteria at the same time. Only by considering them simultaneously, can you utilize them to evaluate the humidity chamber manufacturer and then find an ideal supplier.

Advantages of choosing Domestic Humidity Chamber Manufacturer

The domestic humidity chamber manufacturer generally provides a relatively low selling price for the machine. Upon receipt of orders, the domestic company can bring on stream as soon as possible due to the closest geographical location. Besides, you can also timely and conveniently contact the supplier once a problem is identified.

Advantages of directly dealing with Humidity Chamber Manufacturer

If you should purchase large quantities of machines that contribute to the running and growth of your company, you should contact and consult humidity chamber suppliers directly. By doing so, you can get the lowest price without any brokers or distributors making a profit margin.

Having learned such influential factors, I sincerely recommend to you the DGBell company.

Established in the year 2005 in Guang dong, DGBell enjoys 15 years of experience in manufacturing the Battery Safety Test Equipment & Environmental Test Chambers.

We provide a variety of walk-in humidity chambers for different purposes.

Moreover, our products are in strict accordance with the international standard and authority regulation rules.

All of our products are for sale at Factory Price.

Comparison Between Humidity Cabinet and Humidity Chamber

The humidity cabinet is temperature-controlled through heat or refrigeration. A low-pressure water vapor generator controls humidity and allows for greater temperature regulation than humidity produced through steam generation.

While, the humidity chamber or humidity test chamber is a useful testing instrument for analyzing the prolonged effect of humidity on components to fix its quality drawbacks.

Moreover, the humidity test chamber or humidity test chamber is not subjected to only one industry applications.

The humidity chamber is used in pharmaceuticals, plastic, and rubber industries for quality assurance testing.

Humidity Tester Chamber Price

The humidity test chamber price is determined by various factors, such as the power of this machine itself, the brand, and size.

The humidity test chamber price is also affected by market demand, weather conditions, government regulation rules, and other factors.

1. The Power of a Humidity Test Chamber: It is crucial in determining a humidity test chamber price. The chamber with different power varies a lot in terms of the price.

2. The Brand of a Humidity Test Chamber: although the power is the same, the brand is different. There will be also a huge difference in the humidity test chamber price.

Generally speaking, the humidity test chamber price of the import company will be more expensive than that of the joint venture, which is more expensive than that of the domestic company.

3. The Size of Humidity Test Chamber: different sizes mean different prices. For example, the price between the small humidity chamber and walk in environmental chamber is totally different.

4. Practical Demand: With the thriving economy, the industries are in full swing. The current market is so highly competitive that all products upgrade rapidly. That, in turn, demands more durable and highly cost-effective products. Therefore, you need sundry chambers of different functions to help you constantly optimize your product.

Next, I will list some different types of chambers for your reference: benchtop temperature humidity chamber, constant temperature and humidity test chamber, temperature humidity environmental chamber, constant temperature and humidity chamber, constant temperature humidity chamber, temperature humidity chamber.

If you want to learn more about one of the above-mentioned chambers, please log in to our official website for check or contact us directly.

The Types and Applications of Other Related Products

Humidity Cabinet

Humidity Cabinet is designed to simulate test conditions of high humidity at constant or cycling temperatures.

It can simulate a real test environment by heating water to precise temperatures to generate water vapor.

It will be conducive for you to test the humidity resistance of samples on the simulated condition. By doing so, you can find the shortcomings of your products and make corresponding adjustments before marketing them.

Common Uses for Humidity Cabinet

On the whole, a humidity cabinet is indispensable in all kinds of industries and laboratories. I will list 2 areas in which a humidity cabinet can use as follows:

Stability Testing for Electronic Products:

With the rapid development of high technology, electronic products are indispensable in various fields.

The wide application of it means that it should be more carefully handled and maintained. For the reason that the natural condition is unpredictable. It is inevitable that these high accurate apparatus suffer the implication of moisture conditions caused by rainy days.

In this regard, it is so important that you should conduct experiments to test the stability of these kinds of products and then identify their period of service.

Under such circumstances, the humidity cabinet will be a great aid.

Stability Testing for the Plant:

The application of a humidity cabinet does not confine to a professional area. The humidity chamber is also popular in our daily life. All the people who grow plants know that moisture and heat are crucial for plants to flourish. But all these external factors are difficult to control. Now, good news: a humidity chamber can provide moderate and ample moisture and heat for plants when they are in the seeding and bud stages.

On the whole, a humidity chamber has demonstrated its own significance in other industries, covering pharmacy, catering, cosmetics as well as logistics. You can choose the right one according to your own needs.

Small Humidity Chamber

A small humidity chamber is also known as the benchtop humidity chamber.

It is designed to precisely simulate or control the desired humidity environment for the physical properties and chemical properties of small products.

Specifically speaking, firstly, the small humidity chamber is engineered to ensure the best quality of your product by using corrosion-resistant stainless steel and fireproof glass wool insulation.

Secondly, the small humidity cabinet is useful equipment with the international quality standard. It can put tested products at a designed humidity level within this chamber.

Common Uses for Small Humidity Chamber

A small humidity chamber is a testing instrument for analyzing the prolonged effect of humidity on components to fix its quality parameters. This instrument is not only used in one industry filed but also in pharmaceuticals, plastic, and rubber industries for quality assurance testing.

Walk In Humidity Chamber

The walk in humidity chamber is perfectly designed for the high requirements of humidity studies and climatic tests.

With humid rooms specifically developed to meet international standards, a walk in humidity chamber can simulate the moisture environments to test large samples’ performance against the unpredicted climatic conditions.

Common Uses for Walk In Humidity Chamber

Walk In Humidity Chamber finds wide usage in industries, such as national defense, aerospace, automobile parts, electronic and electrical components, plastics, telecommunications equipment.

Unlike a small humidity chamber, it is a room-sized chamber for testing large objects or for testing large batches of product.

It is mainly used to evaluate the product life expectancy by accelerating sample aging based on the simulated humidity condition.

Temperature and Humidity Chamber

Temperature Humidity Chamber ( also known as Climate Chamber) can test and evaluate products’ ability to withstand extreme temperature and humidity alternating by simulating adverse climate conditions.

It comes in a variety of sizes, such as benchtop temperature and humidity chamber, and walk in temperature and humidity chamber.

With the help of it, you can make qualified products by the following standards:

IEC68-2-1; IEC68-2-2; IEC68-2-3; IEC68-2-30; IEC-2-14; MIL-STD-810D High temperature test; MIL-STD-810D Low temperature test; MIL-STD-810D Damp heat test.

Common Uses for Temperature and Humidity Chamber

Temperature and Humidity Chamber is also known as a climate chamber.

It is able to simulate a wide range of temperature and humidity environment conditions for testing a variety of products and materials.

It is widely used for basic thermal cycling test and accelerated stress test. We provide 6 standard models, test cabinet from 80L to 1000L and customized size is also available.

Constant Temperature and Humidity Chamber

Constant temperature and humidity chamber is designed to test the physical properties and chemical properties of your product by simulating the climate conditions of the cyclic and unceasing alternating of temperature and humidity.

It can analyze and evaluate whether the components and materials can bear long-term high low-temperature storage, transportation, and use in the real world without damage.

Common Uses for Constant Temperature and Humidity Chamber

The constant temperature and humidity chambers are widely used in the temperature and humidity variation tests, cold resistance tests, and storage with high-temperature or low-temperature in the fields of aerospace, aviation, electronics, instrument, electric products, materials, parts and components and equipment.

With the help of it, you can analyze and evaluate the property and performance of your samples under the simulated conditions.

Conclusion

Finally, we have come to the end of our guide today.

After reading this guide, I believe that you have a general understanding of a humidity test chamber.

I believe that you can buy a humidity chamber ( also known as humidity control chamber) for your specific needs.

Now, I would like to hear from you too:

What kind of humidity test chamber would you prefer? If there is not a humidity test chamber after your heart, please contact us at any time. We will produce the humidity test chamber in the specification and size you need.

Except for the humidity chamber for sale, we also provide other types of chambers.

And then if there is anything you believe I have missed or failed to explain to your satisfaction, please leave your message below.

In addition, if you want to know more minute information, such as a humidity test chamber price or temperature and humidity chamber price, you can contact us directly. The contact information is available at the bottom of the page.

Our team will be happy to serve.

[dionholt2]

Temperature Chamber－a Protective Umbrellar for Your Product

Maybe, you are troubled by the failure of finding a suitable temperature chamber ( also known as a temperature test chamber) to test your products.

Or most likely, you are full of curiosity what is the temperature chamber.

Here is a piece of good news: today’s guide will take you through the significant aspects before purchasing a temperature chamber.

In addition, it serves as a complete guide for your reference. There may exist a possibility that you could use it in the future.

This guide involves many aspects, ranging from the definition, application, specification, working principle and every other relevant information regarding a temperature chamber.

What is Temperature Chamber?

Temperature Chamber, also known as temperature test chamber, is developed to simulate the required temperature in order to successfully carry out complicated heating experiments between -70℃- 150℃ (can be customized).

In other words, a temperature chamber is like a laboratory instrument to test your product in a temperature-controlled environment.

A temperature chamber is one of the earliest products we produced.  It is constructed in strict accordance with international standards and government regulations.

As many detected objects are equipped with the solid shell, the components, materials of the temperature chamber must be strong enough to resist high-temperature than tested objects put inside of them.

For these reasons, the temperature test chamber is popular and functional in the matter of identifying the thermal performance of various products.

Applications of Temperature Chamber.

Temperature Chamber finds wider usage in testing the performance of a broad range of applications coping with the high-temperature in the simulated enclosure space.

The tested products range from Li-ion cell battery, aviation, automobile, electronic components to materials, energy, chemical, medical and other industries.

That means a temperature chamber can model the environment as exactly as you want to test how long your products can endure under the designed environment.

With the help of the temperature testing chamber, you could select the data of the thermal resistance performance of your product.

And then you can add to these real experiment data as one of the advantages to your product presentation.

By doing so, potential customers may prefer your product, because they are supported by the real and convincing experiment data.

Moreover, no matter you want a small temperature chamber or a big one. Our temperature chamber comes in a variety of sizes (can be customized) and performance configurations.

Each chamber offers an ideal solution for any industry or product.

Therefore, choose a temperature chamber that fits your performance, testing, laboratory, and company needs today!

5 Features of Temperature Chamber

To make you more impressed with our temperature testing chamber, i will list 5 advantages of it as following:

Trust-worthy test results.

The temperature testing chamber requires a particular degree of quality and reliability. Its external material is made of the galvanized sheet with high- temperature electronic resin coating at both sides. Its internal material consists of SUS# 304 heat and cold resistant stainless steel with seal welding.

Programmable Temperature Change Rate.

It is sometimes more accurate to test an item at a number of different temperatures. Rapid and controlled temperature change rates can minimize the deviation in the gradient experiments you design. In other words, it can ensure the accuracy of your experiments.

Flexible in Use.

The temperature chamber is not difficult to operate. It is constructed with PlC Control and remote computer control. All these traits make it easy to assemble, disassemble, operate and even troubleshoot.

Low Costs.

The temperature test chamber integrates the Heating System, Refrigeration System, Forced Internal Circulate System as well as Fume Exhaust System, Explosion-proof System.

It demands lower capital investment compared to other types of temperature chambers.

Therefore, you don’t need to worry about a large investment.

Filling a variety of materials of different sizes.

With a commodious and solid cabinet, you can easily fill a range of products with various sizes and weights. Let’s take a model of the Double-deck High and Low- Temperature Test Chamber as an example, i.e. BTL-D2-288C. It has a single cabinet inner dimension featuring W800 X D600 X H600 MM and external dimension W1500*H1950*D1700 MM.

Why are You Need a Temperature Chamber?

With the advent of the electric vehicles, the temperature chamber manufacturers have witnessed the rapidly increased purchase quantities in the temperature test chamber to go with it.

Do you know why the temperature test chamber is the best-selling commodity?

The short circuit is the culprit of the safety accidents caused by lithium batteries. We all know that when the electric resistance is very small, the positive and negative anodes will form an abnormal pathway, namely the short circuit.

In this case, the resulted heat and strong electricity will occur in the inner part of the battery. These two factors not only cause serious damage of the battery, but also trigger a sudden increase in pressure inside the battery. Besides, as the chemical properties of the lithium battery being very lively, the electrical vehicle may lose its structural integrity and even explodes finally.

It can be concluded that there is no way to completely avoid and eliminate the possibility of lithium battery fire and explosion.

What we should do is to make sure that there are no secondary disasters after a fire or an explosion.

In this case, the temperature test chamber will be a great aid. The temperature chamber will ensure the safety of the site to a large extent. The main function of the temperature chamber is to relieve the pressure through a pressure purging port.

If you seek higher security, you could add a hinge to the door lock with the purpose of weakening the explosion shock.

In this way, the customer will not be injured by the product explosion.

The Standard Compliances of Temperature Chamber?

IEC60068-2-1:2007: Low temperature testing

IEC60068-2-2:2007: High temperature testing

The Main Components of a Temperature Chamber.

GEA Bock Compressors (Germany).

EMERSON Oil Separator (USA).

Danfoss Pressure Switches and thermostats (Denmark).

SAGInoMIYA refrigerant solenoid (Japan).

TATO Customized Temperature and Humidity Controller (Taiwan).

Schneider Intermediate Relay (France).

MEAN WELL POWER SWITCH (Taiwan).

Schneider Contactor (Taiwan).

Schneider SSR (France).

CARLO GAVAZZI Monitoring Relay (USA).

The related products of a Temperature Test Chamber.

The Double-deck High and Low -Temperature Test Chamber.

The Temperature Cycling Test Chamber.

The Double-deck High-Temperature Aging Test Chamber.

Rapid Temperature Change Rate Test Chamber.

Thermal Shock Test Chamber (can be divided into Two Zone and Three Zone).

Conclusion:

Finally, we have come to the end of our guide today.

After reading this guide, I believe that you have a general understanding of a temperature chamber.

I believe that you can buy a Temperature Chamber for your specific needs.

Now, I would like to hear from you too:

What kind of the Temperature Chamber would you prefer? If there is not a temperature chamber after your heart, please contact us at any time. We will produce the Temperature Test Chamber in the specification and size you need.

If there is something you believe I have missed or failed to explain to your satisfaction, please leave your message below.

In addition, if you want to know more minute information, such as a temperature test chamber price, you can contact us directly. The contact information is available at the bottom of the page.

Our staff will be happy to help.

[dionholt2]

Thermal Shock Test Chamber Ultimate Guide

Have you once wondered what a thermal shock test chamber is? Or, have you ever received complaints from your customer who said that your product didn’t work prematurely or had a short life?

How to say, such a phenomenon does not mean that the machine of your company is inferior in quality and standard.

The reason is that all products are bound to suffer the adverse impact brought by the environment in which they are applied. For example, when a lithium-ion battery is placed in an extremely cold condition, it will be impaired in terms of service life and storage capacity.

As a result, before bringing your product into the market, you should ensure the components of your product solid and endurable enough to withstand negative external factors.

Given such a situation, it is no doubt that the thermal shock test chamber will be a great aid.

So, today’s guide will take you through the significant aspects before you are resolved to buy a thermal shock test chamber or not.

This guide involves many aspects, ranging from the definition, application, specification, working principle and every other relevant information regarding The thermal Shock Test Chamber.

Now, let us get into the topic of today.

The Definition of Thermal Shock.

As exposed to the rapid exchange of drastic hot and cold, the inner part of the tested sample, such as the metal material, will experience great temperature difference in the shortest time, thus triggering a large shock thermal stress. This phenomenon is called thermal shock.

For example, in a building fire, the glass is heated rapidly. The ensuing great temperature differences make different parts of the glass expand by different amounts, which could result in a thermal shock. Experienced too much stress, the glass may lose its structural integrity and break into pieces finally.

What is Thermal Shock Resistance?

By definition, it refers to a tested product’s ability to withstand dramatic changes in temperature either during heating or cooling. For example, silicon nitride, a particularly heat-proof material, displays superior resistance to thermal shock, as tested by heating the material to 550℃ (1,022℉) and then rapidly cooling it by dropping it into water.

The Definition of Thermal Shock Equipment.

Thermal Shock Test Chamber, also known as thermal shock chamber, thermal shock equipment, or Environmental Stress Screen Test).

On the whole, thermal testing equipment models the influences of rapid transition between hot and cold zone to identify the thermal shock resistance power of your tested products.

Specifically speaking, the temperature shock chamber uses the cold storage method and the thermal alternating impact method to test the performance and parameters of the product after a sharp temperature change.

In other words, the thermal shock chamber is used to test the extent to which a material structure or composite material can withstand transiently in extremely high temperature and very low -temperature continuous environments.

The thermal Shock Test Chamber boasts a table area that carries a tested product and automatically transports a tested product between two separately controlled hot and cold zones.

Besides, it is convenient for you to observe the product during the transition process with a visible window installed in the thermal shock test chamber.

All these useful tools contribute to the realization of rapid temperature change for thermal shock.

Therefore, the thermal shock chamber is possible to test the chemical change or physical damage caused by the thermal expansion and contraction in the shortest time.

Purpose of Using a Thermal Shock Test Chamber.

When you want to buy a product reasonably, you need to have a general understanding of the application of this product.

To begin with, the thermal shock test chamber is designed to find defects in electrical assemblies, glass, rubber, plastics, metals, ceremic as well as other materials.

The purpose of the application at different stages of product development is different:

Engineering R&D (research and development) stage: you can discover the defects of components of a product with the temperature shock test chamber.

Improvement Stage: After finding the weakness in your product, you could make corresponding adjustments.

Simulated Experiment Stage: A good thermal shock chamber is critical for estimating potential success or failure of your product in reality. Because the external factors are complex and versatile. There is a high possibility that your products are exposed to the extreme cold and hot conditions simultaneously. To prevent such circumstances from happening, the importance of the thermal shock test chamber is evident.

Product Marketing Stage: you could add authentic and convictive data from the experiment to your product description.

Two Kinds of Thermal Shock Test Chamber

The thermal shock test chamber can be divided into 2 zone and 3 zone. The difference between 2 zone and 3 zone is the inner structure chamber and test method. 3 zone consists of Hot Zone, Cold Zone as well as Test Area. The tested sample is placed int the test area. 2 zone consists of Hot Zone, Cold Zone. The tested sample is placed into the basket.

Four Reasons for Using a Temperature Shock Test Chamber.

Highly Competitive Market:

With the swift development of the national economy, industries of various scale in China are rush in seizing opportunities to hold a  place in the market, i.e. plastic, metal as well as machine manufacturing industry.

Higher demands of customer:

The highly competitive the market , the faster the product supersedure.

Hence, there are more and more alternative choices for customers.

To stand out from your rival, you should intensify your efforts in the improvement of the quality of your product.

Ensuring Security of a Product:

Before bringing a product into the market, you should perfect the security of a product as many as possible. High security makes a good product and a high-class product brings a steady stream of passengers!

High Cost-worthing Performance:

With high cost-worthing performance, our thermal shock test chamber is for sale at factory price. Hence, it is the first choice for you among other products of the same kind.

Features of thermal Shock Test Chamber?

Air-to-air thermal shock test.

Refrigerate System( 2 sets of the compressor).

Insulation material ( polyurethane foam).

Temperature switch and recovery time can be controlled within 5 seconds.

The low temperature of -70℃ to the high temperature of 200℃.

Direct transfer between hot and cold zone vertically with Stainless Steel carrier basket.

Energy Efficient Design with Japanese or German technology, reduce electricity consumption by 20%.

Compact footprint, saving space.

Customized shelves or racks for placing different products.

Customized standard window to accommodate product viewing.

What is the Thermal Shock Test Standard? 

IEC68-2-1 Environmental testing -Part 2: Test methods-Tests A: Cold.

IEC68-2-2 Environmental testing for electric and electronic products Test methods -Tests B: Dry Heat.

MIL-STD-810D Environmental test methods and engineering guidelines.

How to Choose the Thermal Shock Chamber?

At the time of purchase, they have their own requirements.

There are five aspects to be aware of when purchasing a thermal shock test chamber:

Impact Temperature

The impact temperature refers to the maximum temperature range that can be reached in the test area. Note that it is not the extreme temperature of the preheating and pre-cooling chambers;

Test Load

The test load directly affects how many test items can be placed. Generally speaking, the bigger the weight, the better;

Reset Time

Reversion time is the time it takes for the test item to switch from one temperature point to another. Our common specification is ≤5min. The smaller the time, the better;

Defrost Time

The longer the defrost interval, the better. It is very desirable to have a manufacturer who can do 1000 cycles of defrosting once. The shorter the defrost interval, the worse the airtightness of the device;

Sensor Placement

The sensor must be placed inside the test area. Some manufacturers place the sensor inside the air duct. Although it is only 10cm away from the test area, this energy difference is quite large. It does not accurately reflect the temperature change on the surface of the test article.

Last but not least, we are an environmental testing equipment and battery testing equipment company with 13 years of production and R&D experience.

Conclusion:

Finally, we have come to the end of our guide.

After reading this guide, I believe that you have a general understanding of the temperature shock chamber.

I believe that you can buy a Temperature Shock Test Chamber for your specific needs.

Now, I’d like to hear from you too:

What kind of the Temperature Shock Test Chamber would you prefer? Please contact us at any time and we can produce Temperature Humidity Test Chambers in the way you want.

If there is something you believe I have missed or failed to explain to your satisfaction, please leave your comments below.

Or, you can contact us directly.

Below is our contact information and detailed adrress:

E-mail: [email protected]