Black silicon carbide abrasive is made of quartz sand and petroleum coke as the main raw materials, which are smelted at high temperature in a resistance furnace. , magnetic separation, acid-base washing, water washing, drying, testing, packaging and warehousing and other procedures. Divided into P series and F series and other specifications.
Bontrue black silicon carbide abrasive: the microscopic shape is hexagonal crystal, the Mohs hardness of silicon carbide is 9.2, the Wickers micro-density hardness is 3000-3300 kg/mm2, the Knoop hardness is 2670-2815 kg/mm, the micro-hardness is 2670-2815 kg/mm. Hardness 3300 kg per cubic millimeter. In abrasives, it is higher than corundum and second only to diamond, cubic boron nitride and boron carbide.
Black silicon carbide abrasive has high hardness, HV=3100-3300kg/mm2, is brittle and sharp, and has certain electrical and thermal conductivity. The density is generally considered to be 3.20 g/mm3, and the natural bulk density of its silicon carbide abrasive is 1.2 -1.6 g/mm3, the specific gravity is 3.20 to 3.25. It has the advantages of high temperature resistance, erosion resistance, corrosion resistance, acid and alkali resistance, etc.
The hardness of black silicon carbide abrasive is between corundum and diamond, and its mechanical strength is higher than that of corundum. It is brittle and sharp, and has certain electrical and thermal conductivity. Abrasives made of it are suitable for processing non-ferrous materials with low tensile strength, such as non-ferrous metals, wood, leather, plastics, rubber, stone, gray cast iron, silicate materials (glass, ceramics, concrete), etc.
At present, Bontrue silicon carbide is exported to the United States, Russia, Germany, France, Malaysia and Southeast Asia and other regions. Customers are welcome to buy our company’s silicon carbide abrasives.
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