What Are The Types Of Corundum Bricks?

Corundum brick is a high-quality refractory material with excellent performance indicators. It is often used in key parts of high-temperature industrial kilns. There are many types of corundum bricks, each of which has different uses. Here are some common corundum bricks:

1. Fused corundum brick

Fused corundum brick is a refractory brick made by an electric melting process. It has high refractoriness, corrosion resistance, and strength. It can have excellent stability and corrosion resistance in high-temperature environments. It is usually used in high-temperature industrial furnaces such as steel smelting. For example, in the lining of large steelmaking converters, fused corundum bricks can withstand the scouring of molten steel and high temperatures.

2. Sintered corundum brick

Sintered corundum brick is a refractory brick sintered at high temperatures. It has good thermal shock resistance and mechanical strength and is more suitable for key parts of kilns. For example, in the caldron of a glass kiln, sintered corundum bricks can withstand frequent temperature changes and flame impact.

3. Chrome corundum brick

Chrome corundum brick is a kind of brick with a certain amount of chromium added to the basis of corundum brick, which improves its corrosion resistance and wear resistance. It is often used in equipment with high wear resistance requirements such as cement rotary kiln.

4. Zirconium corundum brick

Zirconium corundum brick is a kind of brick with a certain proportion of zirconium added to the basis of corundum brick. It improves the overall corrosion resistance and thermal shock resistance of refractory bricks. It is mainly used for the upper space of glass kilns that are not in contact with glass liquid, as well as rolling heating furnace slide rails.

5. Brown corundum brick

Brown corundum brick is mainly made of brown corundum as the main raw material. It has excellent wear resistance and corrosion resistance. It is usually resistant to alkaline media, so it is often used in high-temperature kilns with alkaline media, such as glass kilns, ceramic furnaces, etc.

6. Composite corundum brick

Corundum is compounded with other refractory materials, combining the advantages of multiple materials to meet the complex needs of specific working conditions. For example, in some non-ferrous metallurgical furnaces, composite corundum bricks can adapt to the erosion and temperature changes of various chemical substances.

The above are several common types of corundum bricks. Compared with high-alumina bricks, corundum bricks have greatly improved in fire resistance, wear resistance, corrosion resistance, and other characteristics, so they are handy when dealing with some high-temperature kilns with temperatures greater than 1900°C. Not only that, in the key parts of the kiln, to maintain the stability of the kiln, corundum bricks are often used, but the price of corundum bricks is much higher than that of high-alumina bricks, so comprehensive considerations should be made when choosing.