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Silicon carbide abrasive belongs to the man-made material, is used quartz sand, petroleum coke (or coal coke), sawdust (production of green silicon carbide needs to add salt) and other raw materials through high temperature smelting resistance furnace. Pure silicon carbide is a colorless transparent crystal. Industrial silicon carbide is light yellow, green, blue and even black due to the different kinds and contents of impurities.
The pretreatment stage of sand blasting process refers to the treatment on the surface of the workpiece before it is sprayed and sprayed with protective layer. The quality of sand blasting pretreatment affects the adhesion, appearance, moisture resistance and corrosion resistance of the coating. If the pretreatment is not done well, the corrosion will continue to spread under the coating and make the coating flake off. After careful cleaning of the surface and the general simple cleaning of the workpiece, using insolation method for coating comparison
Silicon carbide abrasive production, silicon carbide abrasive use:
Chinese name: Silicon carbide Chinese synonym: Silicon carbide Artificial silicon carbide abrasive; Silicon carbide, emery; Refractory sand; Silicon carbide powder; Silicon carbide; Silicon carbide. Silicon carbideCAS no. 409-21-2 Molecular formula: CSi Molecular weight: 40.1EINECS No. 206-991-8 melting point 2700 °C(LIT.) Density 3.22 g/mL at 25 °C(LIT.) refractive index 2.6500
Use because of its high thermal stability and high strength, high thermal conductivity and so on