Corundum spinel castables are widely used in large and medium ladle, tundish and electric furnace working linings. They are high-grade refractory castables made of fused corundum, spinel composites and additives. Corundum spinel castables have good special properties, such as high temperature resistance, good high temperature performance, good thermal shock resistance, good slag and corrosion resistance, high strength, good scouring resistance, etc.
During the use of corundum spinel castable, the volume expansion caused by the formation of spinel and the reaction between the material and slag to form other compounds will damage the material. The use performance of the material is improved by adding raw materials that increase the thermal shock resistance and slag resistance of the material, such as SiO2 fine powder, ZrO2 fine powder, Cr2O3 fine powder, etc.
