Green Silicon Carbide

The production method of green silicon carbide micro powder is basically the same as that of black silicon carbide, but the requirements for raw materials are different. Green silicon carbide is made from petroleum coke and high-quality silica as the main raw materials, with salt as an additive, and is smelted at high temperature in a resistance furnace. The smelted crystal has high purity and high hardness. Its hardness is between corundum and diamond, and its mechanical strength is Higher than corundum. application Green silicon carbide, grinding wheel code GC grinding wheel is suitable for processing cemented carbide, glass, ceramics and non-metallic materials, and is also used for semiconductor materials, high-temperature silicon carbon rod heating elements, far-infrared source substrates, etc. Production Process The manufacturing method of green silicon carbide is the same as that of black silicon carbide, but the purity of the raw materials used is higher. It is also formed in a resistance furnace at a high temperature of about 2200°C. It is green, translucent, and has a hexagonal crystal shape. Its Sic content is higher than that of black. , the physical properties are similar to black silicon carbide, but the performance is slightly more brittle than black, and it also has better thermal conductivity and semiconductor properties. According to the shape, it can be divided into flat grinding wheels, bevel grinding wheels, cylindrical grinding wheels, cup-shaped grinding wheels, disc-shaped grinding wheels, etc.; according to the binder, it can be divided into ceramic grinding wheels, resin grinding wheels, rubber grinding wheels, metal grinding wheels, etc. The characteristic parameters of the grinding wheel mainly include abrasive, viscosity, hardness, bond, shape, size, etc. Since the grinding wheel usually works at high speed, a rotation test (to ensure that the grinding wheel will not break at the highest operating speed) and a static balance test (to prevent machine tool vibration during operation) should be performed before use. After a grinding wheel has been in operation for a period of time, it should be dressed to restore grinding performance and correct geometry.