Skateboard anti-slip stickers, sandpaper raw material black silicon carbide grain size sand 70#80#
Black silicon carbide is made of less quartz, petroleum coke and high-quality silica as the main raw materials, and is smelted at high temperature in a resistance furnace. The hardness of black silicon carbide is between corundum and diamond, its mechanical strength is higher than that of corundum, and it is brittle and sharp. Black silicon carbide is based on quartz sand (SIO2) and anthracite or petroleum coke (C) as a non-metallic mineral product produced under high temperature conditions above 1800 degrees Celsius. It has high hardness, small expansion coefficient, brittleness, and thermal conductivity. Good characteristics, widely used in abrasives, electronic product grinding, refractory materials, special ceramics, foam ceramics, coating and plastic modification, auto parts, military aviation, deoxidizers for steelmaking, etc.