Performance characteristics of green silicon carbide for surface treatment Silicon carbide has high oxidation resistance Green Silicon Carbide Macro Grits are the products of secondary shaping by Raymond mill, with less angular particles, good hydrophilicity, high grinding efficiency and long working life, etc. Green silicon carbide micro powder is selected from high quality large crystalline silicon carbide block by crushing, vertical ball mill particle shaping, acid washing moisture, hydraulic precision classification, natural settlement after high temperature drying, stable quality, good crystallization, high surface cleanliness, no large particles, less fines content, concentrated particle size distribution, high grinding efficiency, suitable for a variety of precision grinding processing, processing of the workpiece surface uniformity, no scratches. The natural bulk density of silicon carbide abrasive is between 1.2–1.6g/cm3, and the specific gravity is 3.20~3.25g/cm3. The density is generally considered to be 3.20-3.25g/cm3. The microscopic shape is hexagonal crystal, the Mohs hardness of silicon carbide is 9.4, microdensity hardness is 2940-3300kg/mm2, Nuptial hardness 2670-2815kg/mm2, higher than corundum in abrasives and second only to diamond, cubic boron nitride and boron carbide.
It is green crystalline, brittle and sharp, and has certain thermal and electrical conductivity. Green silicon carbide for surface treatment is made of petroleum coke and high quality silica as the main raw material, adding salt as an additive, and smelted at high temperature in a resistance furnace.
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