Silicon carbide including black silicon carbide and green silicon
carbide, including: Black silicon carbide is quartz sand, petroleum
coke and high-quality silica as the main raw material, through
high-temperature resistance furnace smelting made. The hardness
between corundum and diamond, corundum higher mechanical strength,
brittle and sharp. Green Silicon Carbide is a high-quality
petroleum coke and silica as the main raw material, add salt as an
additive, is made by smelting high-temperature resistance furnace.
The hardness between corundum and diamond, corundum higher
mechanical strength. Silicon carbide abrasive commonly used in two
different crystals, one is green silicon carbide, with SiC *7% or
more, gold is mainly used for grinding hard tool. The other is
black silicon carbide, a metallic luster, containing SiC *5% more
strength than a large green silicon carbide, but the hardness low,
mainly used for grinding cast iron and non-metallic materials.
