2013年9月28日星期六

Green silicon carbide range of applications and key raw materials smelting

Green silicon carbide range of applications is gradually changing, and it is constantly rising trend in walking , silicon carbide main types of black and green , in today's high-tech refractory materials , silicon carbide is the most widely used products . Can be called emery or refractory sand .
Where: Green silicon carbide is petroleum coke and quality silica as the main raw material, add salt as an additive in electric arc furnace smelting . Green , high hardness and cutting ability, chemical stability , good thermal conductivity . High purity , brittle , microhardness 3280-3400 kg / mm2. It is made of abrasive, suitable for processing high hardness, brittleness of the material , its hardness between corundum and diamond , the mechanical strength is higher than corundum . Mainly used for grinding hard gold-bearing instruments . Green silicon carbide containing SiC99% or more, good self-sharpening , mostly used for machining tungsten carbide, titanium and optical glass , also used for grinding cylinder liners and grinding high-speed steel cutting tools.
Green Silicon Carbide Applications:
Do bonded and coated abrasives , and polishing and so on. Suitable for machining cast iron , tungsten carbide , titanium , high-speed steel. Can grind glass, ceramics, stone , agate and jade and other non-metallic materials, fine jewelry , heating elements and thermal elements . Such as carbide , optical glass, glass and ceramics brittle ma non-metallic materials , can also be used to manufacture high-grade refractory , electric components and electrical component products. There is also cubic silicon carbide, which is based on a special process to take the yellow-green crystals, suitable for the production of abrasive bearing super finishing , make the surface roughness Ra32 ~ 0.16 microns from primary processing to Ra0.04 ~ 0.02 microns.
The physical properties of green silicon carbide is better, in the major industries in the area has a significant role , is very important .

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