What Is Refractory Brick?

Refractory brick is a shaped material used in high-temperature industrial kilns. It is mainly used for masonry furnace walls of high-temperature kilns. At present, refractory bricks are primarily divided into silicon-aluminum refractory bricks, alkaline refractory bricks, carbon-containing refractory bricks, chromium-containing refractory diamonds, zirconium-containing refractory bricks, magnesium-containing refractory bricks, etc., according to the composition. The types are very rich. At the same time, refractory bricks can be divided into standard refractory bricks, ordinary refractory bricks, and specific refractory bricks according to their shape. Therefore, refractory bricks can be made into refractory materials of different materials and sizes to meet the different needs of high-temperature industrial kilns.

The physical and chemical indicators of refractory bricks are also very diverse. They are used to meet different working media. The refractory temperature is generally between 1350℃ and 1790℃. The refractory temperature of some refractory bricks with high-quality ingredients can reach about 2000℃. Not only that, refractory bricks also have a series of characteristics such as corrosion resistance, creep resistance, and thermal shock resistance. They can maintain stability under high-temperature environments and provide a stable working environment for kilns.

Since refractory bricks are divided into different brands and types when we choose refractory bricks, we should generally make reasonable choices based on the working environment of the kiln, the working temperature of the kiln, the properties of the medium, the working environment, and other factors. Moreover, in the same kiln, the working temperature and environment of different positions are also different, so different refractory bricks should be selected for different positions in the same kiln. Sometimes two or three refractory bricks can be used for masonry in the same kiln. Therefore, when choosing, we must understand the use environment and characteristics of the entire industrial kiln, so that we can choose the right refractory bricks.