Summary

Silicon carbide has black silicon carbide and green silicon carbide two commonly used in the base of the species, all belong to the alpha -SiC. Black silicon carbide containing SiC about 95%, its toughness is higher than the green silicon carbide, mostly used for processing low tensile strength of materials, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals, etc.. Secondly, green silicon carbide containing SiC is about 97% above, good self sharpening, mostly for processing hard alloy, titanium alloy and optical glass, also used for honing the cylinder and fine grinding HSS Cutting Tools. In addition to cubic silicon carbide, it is a special process of producing yellow green crystals, to make the abrasive suitable for ultra precision machining of the bearing, so that the surface rough degree from RA32 ~ 0.16 micron processing to ra0.04 ~ 0.02 micron SiC due to chemical stability, high thermal conductivity, thermal expansion coefficient, good wear resistance.
Green silicon carbide abrasive properties than black silicon carbide hard and brittle, sharp, with a sharp cutting edge, it is easy to cut into the workpiece. Mainly used in the manufacture of ceramic, resin grinding wheel, hard alloy tool and workpiece grinding, thread grinding and fine grinding, used for grinding agate, clock and watch jewels, fine jewelry jade, heavy metals, such as GE, cutting and grinding free, ground of abrasion resistance.

Product categories

Black silicon carbide containing SiC by about 98%, the toughness is higher than the green silicon carbide, mostly used for processing low tensile strength of material, such as glass, ceramics, stone, refractory material, cast iron and nonferrous metal, etc.

Green silicon carbide containing SiC is about more than 98.5%, good self-sharpening, mostly used for processing hard alloy, titanium alloy and optical glass, also used for honing cylinder jacket and fine grinding HSS cutting tools. And cubic silicon carbide, it is a special process for making yellow crystals, to make the abrasive tool suitable for bearing the superfinishing, can make the surface roughness from a processing Ra32 ~ 0.16 microns to Ra0.04 ~ 0.02 microns.

Silicon carbide applications
1, abrasive and abrasive:
Mainly for the production of grinding wheel, abrasive paper, abrasive, abrasive, grinding, grinding head, grinding paste and photovoltaic products monocrystalline silicon, polycrystalline silicon and electronic industry of piezoelectric crystal aspects such as grinding, polishing etc..
2, chemical industry:
Can be used to make steel and cast iron oxygen agent, can be used as the raw material for the manufacture of four silicon tetrachloride, is the main raw material of the silicon resin industry. SiC deoxidation agent is a new type of strong composite deoxidizing agent, to replace the traditional silicon powder toner for deoxidation, and the original process compared to the physical and chemical performance is more stable, good deoxidizing effect, deoxidizing time relationship, energy conservation, improve the efficiency of steel, improve steel quality, low raw material consumption, reduce environmental pollution, improve working conditions, and the comprehensive economic benefits of improving furnace has an important value.
3, non-ferrous metals:
Using silicon carbide with high temperature resistance, strength, good thermal conductivity, impact, high temperature indirect heating material, such as firm retort furnace, furnace distillation tray, aluminum electrolytic tank, copper smelting furnace lining, zinc powder furnace with arc plate, thermocouple protection tube.
4, iron and steel:
The use of silicon carbide corrosion resistance, thermal shock resistance and wear resistance, good thermal conductivity characteristics, used to improve the service life of large blast furnace lining.
5, building materials ceramic grinding wheel industry:
Using the thermal conductivity and thermal radiation, high heat intensity of characteristic, manufacturing sheet kiln furniture, can not only reduce the kiln capacity, but also increase the kiln loading capacity and the quality of the products and shorten the production cycle and is ideal for sintering ceramic glaze baking indirect materials.

Matters needing attention

1, transport and loading and unloading: silicon carbide in the process of transportation, shall not use iron hook towing, should prevent mixed with the solid material, not a strong vibration, grinding brush, hit, hit, it is strictly prohibited to throw, should be light light discharge, in order to reduce packaging, affect the use.

2, storage: should be stored in a cool and dry place, prevent both inside and outside packing bag is broken, and prevent be affected with damp be affected with damp and other substances, deposit effect use effect and to stay away from pollution sources.

3, it is strictly prohibited under water: silicon carbide belongs to high abrasive, so in the process of transportation, storage and use, will absolutely prevent water immersion, due to flooding, seriously affect the use effect.