Silicon carbide is quartz sand and anthracite coal or petroleum coke (SiO2) (C) as the basic raw material under the condition of over 1800 degrees centigrade high temperature generated non-metallic minerals, because raw material is different form the two black, green silicon carbide. Green silicon carbide is quartz sand and petroleum coke (SiO2) (C) and sodium chloride (NACL) as the basic raw material under the condition of over 1800 degrees centigrade high temperature generated by the non-metallic minerals, it has high hardness, small expansion coefficient, crisp, good thermal conductivity, etc. Are widely used in abrasives grinding, electronic products, refractory materials, special ceramics, coating modified plastic additives, grinding wheel, cutting slices, auto parts, military aviation, etc. Black silicon carbide is quartz (SiO2) and anthracite coal or petroleum coke (C) as the basic raw material under the condition of over 1800 degrees centigrade high temperature generated by the non-metallic minerals, it has high hardness, small expansion coefficient, crisp, good heat conductivity characteristics, widely used in abrasives and grinding of electronic products, refractory materials, special ceramics, ceramic foam, coating modified plastic additives, auto parts, military aviation, steelmaking deoxidizer, etc.''
