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What is Silicon carbide powder

Release Time: 2024-01-10
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Silicon carbide powder is a micron level silicon carbide powder, mainly used in the abrasive industry, and its grade classification is very strict, do not allow large particles appear, is a new used in the process of steel deoxidation materials, with increased carburization, silicon, manganese absorption rate effect, has completely replaced the traditional use of iron silicon, high carbon manganese, the cost reduction effect is obvious, It is of great value to improve the comprehensive economic benefit of steelmaking.


Use of silicon carbide powder:

  1.Chemical industry: silicon carbide powder can be used as a deoxidizer for steelmaking and an improver for cast iron structure, and can be used as a raw material for the manufacture of silicon tetroxide, which is the main raw material for the silicone industry.


2.Fire resistance and wear resistance: not only can be used for a variety of smelting furnace lining, high-temperature furnace components, etc., but also can be used for high temperature indirect heating materials in non-ferrous metal smelting industry.


3. Silicon carbide powder can not only make nozzles, gas turbine blades, but also the ideal material for highways, aviation airstrips, such as water heaters.


4.Non-ferrous metals: the use of silicon carbide powder has high temperature resistance, high strength, good thermal conductivity, impact resistance, it can be used as a high temperature indirect heating material.


 5.Steel: silicon carbide powder corrosion resistance, thermal shock wear resistance, good thermal conductivity characteristics, used to make large blast furnace lining, improve the service life.


6.Metallurgical beneficiation: silicon carbide powder hardness is second only to diamond, has strong wear resistance, so silicon carbide is an ideal material for wear-resistant pipes and bucket lining.


7.Building materials ceramic grinding wheel: manufacturing sheet kiln, not only can expand the kiln capacity, but also shorten the production cycle, is the indirect material of ceramic glaze sintering association.


The role of silicon carbide powder:

  1. As an abrasive, it can be used as an abrasive tool, such as grinding wheel, whetstone, grinding head, sand tile, etc.

2. As a metallurgical deoxidizer and high temperature resistant material.

3.High purity single crystal, can be used to manufacture semiconductors, manufacturing silicon carbide fiber.



Classification of silicon carbide powder

Silicon carbide has black silicon carbide and green silicon carbide two commonly used base of the variety, both belong to α-SiC.

① Black silicon carbide powder contains about 95% SiC, its toughness is higher than green silicon carbide, mostly used for processing low tensile strength materials, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.


②Green silicon carbide powder contains more than 97% SiC, mostly used for processing cemented carbide, titanium alloy and optical glass, but also used for honing cylinder liner and fine grinding high-speed steel tools. In addition, there is cubic silicon carbide, which is a special process of yellow green crystal, used to make abrade for bearing superfinishing, can make the surface roughness from Ra32 ~ 0.16 microns a processing to Ra0.04 ~ 0.02 microns.


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