Corundum Silicon Carbide Refractory Castable (prefabricated Parts)

Corundum silicon carbide castable is a mixture made of fused brown corundum and silicon carbide as the main raw materials, silicon powder as the matrix material, pure aluminate cement binder, and additives such as kyanite and explosion-proof fiber. It is a castable amorphous refractory material.

Characteristics and application of corundum silicon carbide castables

Characteristics of raw materials of corundum silicon carbide castables:

The raw materials of fused brown corundum and silicon carbide are dense, high hardness, high refractory temperature, and wear resistance. They are high-quality high-temperature and wear-resistant raw materials;

Silicon carbide has a large thermal conductivity and a small thermal expansion coefficient. It is difficult to be corroded by molten steel or slag, has strong oxidation resistance, does not stick to iron slag, and is wear-resistant. It is a high-quality raw material that can directly contact molten steel or iron slag;

Silicon micropowder is the matrix component of corundum silicon carbide castables. After high temperature, it plays a role in connecting or bonding refractory aggregates, filling pores, achieving close stacking, and the fluidity and volume stability of the corundum silicon carbide refractory castable mixture. It can also promote sintering and improve the density, strength, high-temperature performance and use performance of the material (casting body); pure aluminate cement is a high-temperature resistant bonding material, which makes the cast lining have sufficient strength and high-temperature resistance at high temperatures. Kyanite is an expansive material, which expands in volume at high temperatures, preventing the castable from shrinking in volume at high temperatures, and improving the overall air tightness of the kiln lining.