Silicon carbide is an artificial material that generally does not react with acid. Therefore, it has high hardness and is one of two common abrasives (corundum, silicon carbide). It is widely used in abrasive materials, refractory materials, resistive components, functional ceramics, and high temperature. Semiconductor and other industries. According to the color and use of silicon carbide, it is mainly divided into black silicon carbide (TH), green silicon carbide (TL), and alumina silicon carbide (TF).
--The nature of green silicon carbide has high hardness and certain toughness. It is mostly used for grinding and polishing optical glass, hard alloy, titanium alloy and bearing steel, sharpening of high speed steel cutter, etc.
--Black silicon carbide is mostly used for cutting and grinding materials with low tensile strength, such as non-ferrous materials, gray cast iron workpieces, glass, ceramics, stone and refractory products.
Green silicon carbide micropowder and black silicon carbide micropowder can be used for grinding and polishing of optical glass, hard alloy, titanium alloy and bearing steel, sharpening of high speed steel cutter and non-ferrous metal materials, gray cast iron workpiece, glass, ceramic, stone and refractory products. Etc. They are characterized by high grinding precision and high finish.
5 main uses of silicon carbide
1. Application of non-ferrous metal smelting industry
The use of silicon carbide has high temperature resistance, high strength, good thermal conductivity, impact resistance, high temperature indirect heating materials, such as hard tank distillation furnace, rectification furnace tray, aluminum electrolysis tank, copper melting furnace lining, zinc powder furnace arc Template, thermocouple protection tube, etc.
2. Application in the steel industry
Utilizing the characteristics of corrosion resistance, thermal shock resistance, wear resistance and good heat conduction of silicon carbide, it is used for lining of large blast furnaces to improve service life.
3. Application of metallurgical beneficiation industry Silicon carbide hardness is second only to diamond and has strong wear resistance. It is an ideal material for wear-resistant pipes, impellers, pump chambers, cyclones and mine linings. Its wear resistance is Cast iron and rubber are 5-20 times longer than the service life of aviation runways.
4. Application of building materials ceramics and grinding wheel industry
Use its thermal conductivity. The characteristics of heat radiation and high heat intensity make thin plate kiln furniture, which not only can reduce the capacity of kiln furniture, improve the capacity and product quality of the kiln, shorten the production cycle, and is an ideal indirect material for ceramic glaze baking.
5, energy saving applications
Using good thermal and thermal stability as a heat exchanger, fuel consumption is reduced by 20%, fuel is saved by 35%, and productivity is increased by 20-30%. In particular, the internal discharge of the discharge pipeline used in the mine selection plant is 6-7 times more wear-resistant than ordinary wear-resistant materials.
