Types and characteristics of refractory bricks
What is a refractory brick
Refractory bricks, also known as “furnace bricks”, are bricks that can withstand high temperatures without melting or decomposing. These tiles are made of refractory clay, quartz, cellulose, asbestos, and other materials, and the refractory materials used vary from one type of refractory tile to another.
Because of the different raw materials, the specific properties and applications of different refractory bricks vary, but they are usually characterized by their ability to maintain their shape, strength and stability at very high temperatures. Refractory bricks are mainly used to construct and repair smelting kilns, ovens, boilers and other equipment in high temperature environments.
Types of Refractory Bricks
Silicon Carbide Refractory Brick
Aluminosilicate refractory bricks are made of silicon carbide as the main raw material, adding appropriate amount of refractory agent, after molding, drying, firing and other processes made of refractory bricks. Silicon carbide refractory bricks have high slag resistance and good acid resistance, suitable for masonry of various high-temperature furnaces, ceramic kilns and so on.
Characteristics of refractory bricks
Good performance of high temperature resistance
Refractory bricks have high refractoriness and can maintain good stability and integrity under high temperature environment.
Good thermal stability
At high temperatures, the volume change of refractory bricks is small, and it is not easy for thermal expansion or contraction to occur, thus ensuring the stability of the structure.
Good chemical stability
Refractory bricks have strong corrosion resistance to acids, alkalis, salts and other chemicals, and are able to maintain stable performance in harsh chemical environments.
Good mechanical strength
Refractory bricks have high hardness and compressive strength, able to withstand large loads and impacts.
Good thermal conductivity
Refractory bricks have a low thermal conductivity, which can effectively reduce the speed of heat propagation and minimize heat loss.
Environmental protection and energy saving
Refractory bricks do not produce harmful substances in the process of use, no pollution to the environment; at the same time, its excellent thermal insulation performance can reduce energy consumption.
Refractory bricks are a kind of construction material with superior performance and wide application. Different types of refractory bricks have different characteristics and scope of application, you can choose the right type of refractory bricks according to the actual project needs.