Silicon Carbide/ Emery Sand/ Refractory Sand
Silicon carbide is also called emery sand or refractory sand. Silicon carbide is made of quartz sand, petroleum coke (or coal coke, and wood chips). When producing green silicon carbide, salt and other raw materials need to be added and smelted at high temperature in a resistance furnace. Currently, the silicon carbide produced industrially in my country is divided into black silicon carbide and green carbonized silicon carbide. There are two types of silicon, both of which are hexagonal crystals with a specific gravity of 3.90g/cm3.