Generally, we commonly use silicon carbide on the market Black silicon carbide and Green silicon carbide。
Black silicon carbide is made of quartz sand, stone tar and high-quality silica as the main raw materials, smelted at high temperature by resistance furnace;
Green silicon carbide is made of quartz sand, stone tar, high-quality silica and industrial salt as a reactant and accelerator in the resistance furnace, the finished product is green, so it is named green silicon carbide.
But if the effect is the same, why so many colors? Is it because different environmental color needs are different? Of course not, first of all, in addition to the color difference, green silicon carbide has good self-sharpening, black silicon carbide has good toughness, and we use them in different industries through their different characteristics.
Green silicon carbide is purer than black silicon carbide texture, hardness is higher than black silicon carbide, its grinding use is the same as black silicon carbide, more suitable for material fine grinding such as grinding threads, grinding measuring tools, etc., in the grinding material is more widely used in cemented carbide, diamond products workpiece.
Because the cost of green silicon carbide in production and manufacturing is higher than that of black silicon carbide, such as the use of different proportions of raw materials, plus salt auxiliary materials, power consumption and processing process differences, so the price of green silicon carbide products is higher than that of black silicon carbide. Therefore, the selection of green silicon carbide is generally not used in non-metallic and non-ferrous metal materials compared with black silicon carbide, and green silicon carbide is mainly used for cemented carbide and precision grinding grinding, and less green silicon carbide is used as a grinding material on abrasive belts and other coated abrasives.
