#aerospace application

[heanjiaalloys]

Selection of High Nickel Super Alloys or aircraft gas applications

Advancements in the materials have contributed in diverse ways in manufacturing gas turbine engines with higher power ratings and efficiency. Improvements in the gas turbine engine design with the passage of time have significantly been possible by the introduction of materials having considerable performance capability. Gas turbines are widely used in the aircraft and land based engines for power production. These materials have played a crucial role- higher capability of the materials to serve at the high temperatures, larger the engine efficiency.

A wide range of high strength materials such as stainless steels and super alloys are used for manufacturing gas turbines. Production of these materials usually involves advanced techniques. The materials used for gas turbine engine applications have high temperature strength as the prime criterion. Other essential factors are stress rupture life, creep properties. low fatigue life, high creep strength etc.

Titanium

Titanium for its high strength to weight ratio, is a commonly used for compressors in aeroengines. Forgings are usually used for the rotating components. For instance, the titanium based alloys are used for fan disc and low pressure compressor discs and blades. The maximum temperature limit for the high temperature applications is 540oC that limits the use of titanium alloys. Here using Nickel based alloys is recommended.

Nickel based super alloys

Considering the increased firing temperatures of the gas turbines and enhanced emission control, use of nickel base super alloys such as Hastelloy X which has high creep strength is recommended. Inconel 617 also finds applications in combustor components. Combustion liners and transition pieces of advanced and uprated machines operating at higher firing temperatures demand high strength materials.

Inconel 718 is used in the production of discs in aircraft engines. Turbine discs of single shaft heavy duty gas turbines are made from chromium-molybdneum-vanadium steel in hardened and tempered condition. With the introduction of advanced gas turbine engines with quite higher firing temperature and compressor ratios, it became crucial to use nickel base super alloy. Inconel 718 is also used for rotors in aircraft engines and aircraft gas turbines.

Identification of creep strength of a material as an essential factor for the gas turbine engines, needs of age hardening, creep and gamma prime volume fraction and consistently increasing service temperature requirements for the aircraft engine resulted in the development of wrought alloys comprising higher aluminum concentration with titanium. Casting compositions can be made for higher temperature strength as it does not require forging. Additionally cast components are intrinsically more durable than forging at high temperatures resulted by the coarse grain size of castings.

Inconel 600 for Rotating airfoils should withstand vigorous temperature, stress and conditions. An essential design factor for the nozzle materials is that they possess high temperature oxidation and corrosion resistance. Nickel base super alloys have an excellent combination of high temperature strength and resistance to hot corrosion which make them a suitable material for heavy duty gas turbine applications. So for your aircraft base industrial applications, you should choose heavy application materials, Nickel base super alloys.

[topolocfrt-blog]

Application development of fiber reinforced thermoplastics

Thermoplastic composites have quickly gained worldwide acceptance and can replace many materials such as die castings, metal assemblies, and traditional plastics in the market, including industrial equipment, automobiles, and consumer products. High impact strength, better surface quality, low product rejection, high rigidity in high temperature and sub-zero temperatures, and creep resistance under harsh environments and constant loads make the thermoplastic composite market more competitive than the thermoset and metal materials markets. profitable. The price/performance advantage makes thermoplastic composites more attractive in the aerospace and defense, transportation, and electrical electronics industries.

Car Application Fiber-reinforced thermoplastics are one of the most promising high-performance automotive lightweight materials available today. They are more competitive than traditional non-renewable thermoset composites and aluminum-magnesium metal materials, while having composite and part structures. The outstanding advantages of design and molding manufacturing integration are more energy-saving and environmentally friendly. In automotive applications, FRTP parts include intake manifolds, air cleaner assemblies, valve covers and engine covers, and composite suppliers believe that FRTP should have a wider range of applications around the engine, such as air intake system components. , oil basin and transmission housing. Currently, BASF, Celanese, RTP, PolyOne, SABIC, DSM, DuPont, Aymans, Milacron, Arburg, Engel, KraussMaffei, Diffenbacher, Vision, etc. Chemicals, molding equipment, molds, online inspection, product design companies, etc., respectively, or jointly launched FRTP (GFRT and CFRT) automotive parts, products and online testing tools, and formed a complete technology development, automated production and equipment, The complete industrial chain of online testing, product design and other series.

The BMWi3 and BMWi8 pure electric vehicles jointly launched by BMW and SGL carbon fiber companies have successfully adopted a large number of carbon fiber composite materials (CFRP and CFRT) for the manufacture of key bearing parts for automotive interior and exterior. Promote the application of carbon fiber composite materials in automobiles.

Aerospace Application FRTP is not only the preferred lightweight material for the automotive industry. In recent years, the aviation industry has also begun to pay close attention to the feasibility of developing CFRT applications. Prior to the advent of the A350XW, Airbus invested heavily in the development of CFRT and component manufacturing technologies. More than 1,500 different aircraft components were produced using CFRT, such as the continuous braided CF/PPS composite door; the US stealth fighter also Non-metallic fasteners are made of CF/PEEK composite material, which absorbs electromagnetic waves well and achieves stealth effect. TenCate has introduced a range of TenCate Cetex® materials to the market, including carbon fiber, fiberglass and spandex reinforced PEEK, PEI and PPS resin unidirectional fiber prepregs. Airbus's faucet product The A380's wing leading edge and the smaller A340 use a PPS-based composite material to ensure high impact resistance. Gulfstream Aerospace's G650 business jets feature thermoplastic composite rudders and landing gear, and are constructed from TenCate Cetex carbon fiber reinforced PPS prepregs.

In aerospace, thermoplastic composites are becoming more widely used. For example, with the development of communication remote sensing satellites, it is required to increase the optical aperture to improve the resolution of the remote sensor. Mirrors (spherical and aspherical) and optomechanical scanning space remote sensors are included in the main optical system of various space cameras. Mirrors made of metal materials all have problems that cannot be achieved by a design that is too heavy, and that thermoplastic composite materials can be effectively solved.

Wind power Application Reinforced thermoplastics also have a lot of room for growth in renewable energy structures. For example, relatively short mold cycles and relatively simple repair and recyclability of thermoplastic composites have attracted the attention of wind turbine blade manufacturers. Ireland's EireComposites Teo works with Mitsubishi Heavy Industries, Oslo Fiberglass and Cyclics Corporation. A 12.6 m (85 ft) long wind turbine blade was produced using cyclic butylene teraphthalate (CBT), a liquid molded glass reinforced thermoplastic. The R&D project is part of the company's Greenblade project to develop large thermoplastic composite blades that are lighter and less expensive than the currently dominant thermoset composite blades, and that it It is faster to produce and can be recycled after the end of its useful life.

Other Application At present, FRTP has become the new favorite of the construction industry. The GFRT building formwork, the GFRT cover plate for the sink, and the CFRT building column reinforcement are widely used. Recently, Fiberlite has been widely used in the manufacture of color manhole covers using continuous glass fiber woven fabric GFRT.

In addition, the demand for FRTP in the oil and gas industry, machinery manufacturing, sporting goods, medical technology and other consumer goods categories is also increasing. The Dutch Abbonne Oil and Gas Company recently announced the superiority of its thermoplastic composite pipe in its briefing. The thermoplastic composite down pipe and the jumper pipe can reach the oil and gas wells in the deepest water, and workover operations can be carried out to improve the performance of the oil and gas well without High cost riser workovers. The thermoplastic composite transfer line effectively solves the corrosion problem while reducing costs.

Topolo New Materials invest CFRT composites production lines, composites sandwich panel lines and experimental equipments.