Semiconductor Grade Poly-Crystalline Silicon Carbide Powder 99.9999% 6n Sic

Product Specification

Semiconductor Grade Silicon Carbide Poly-Crystalline Powder 99.9999% 6n Sic

What is the difference between silicon carbide and ferrosilicon?

As a manufacturer of ferrosilicon and silicon carbide, ZhenAn will introduce to you the differences between ferrosilicon and silicon carbide.

First of all, ferrosilicon is an alloy of silicon and iron, which can be divided into grades of 45%, 65%, 75% and 90% according to the silicon content.

The uses of ferrosilicon include the following:

(1) Used as deoxidizer and alloying agent in the steelmaking industry. In order to obtain steel with qualified chemical composition and ensure the quality of steel, deoxidation must be carried out in the later stages of steelmaking. The chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer for steelmaking and is used for precipitation and Diffusion deoxygenation. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of the steel. Therefore, it is widely used in smelting structural steel (containing 0.40-1.75% silicon), tool steel (containing SiO.30-1.8%), Ferrosilicon is also used as an alloying agent in spring steel (containing SiO. 40-2.8%) and silicon steel for transformers (containing 2.81-4.8% silicon).

(2) Used as inoculant and spheroidizing agent in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel, easy to melt and smelt, has excellent casting properties and is much better than steel in vibration resistance. Especially ductile iron, its mechanical properties are equal to or close to those of steel. Mechanical properties. Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbides in the iron and promote the precipitation and spheroidization of graphite. Therefore, in the production of ductile iron, ferrosilicon is an important inoculant (helping to precipitate graphite) and spheroidizing agent. .

(3) Used as reducing agent in ferroalloy production. Not only is the chemical affinity between silicon and oxygen very high, but the carbon content of high-silicon ferrosilicon is very low. Therefore, high-silicon ferrosilicon (or silicon alloy) is a commonly used reducing agent in the ferroalloy industry when producing low-carbon ferroalloys.

(4) Use in other aspects. Ground or atomized ferrosilicon powder can be used as a suspended phase in the mineral processing industry. It can be used as a coating for welding rods in the welding rod manufacturing industry. High-silicon ferrosilicon is used in the chemical industry to make products such as silicone.

Silicon carbide is a synthetic raw material. It uses natural silica (silica sand) and coke (or anthracite) with a Si02 content of not less than 97% as the basic raw materials, adding a small amount of salt and sawdust, and using a resistance furnace at a temperature of 2000-2500~C. synthesis.

It also has many uses:

(1) The application in the non-ferrous metal smelting industry is to use silicon carbide with high temperature resistance, high strength, good thermal conductivity, and impact resistance as high-temperature indirect heating materials, such as pot distillation furnaces. Distillation furnace trays, aluminum electrolytic cells, copper melting furnace linings, arc plates for zinc powder furnaces, thermocouple protection tubes, etc.

(2) Applications in the steel industry utilize the corrosion resistance of silicon carbide. Resistant to thermal shock and wear. It has good thermal conductivity and can be used for lining large blast furnaces to extend its service life.

(3) Application in the metallurgical mineral processing industry. Since the hardness of silicon carbide is second only to diamond, it has strong wear resistance and is an ideal material for wear-resistant pipes, impellers, pump chambers, cyclones, and linings of ore hoppers. Its wear resistance The performance is 5-20 times that of cast iron and rubber, and its service life is 5-20 times. It is also one of the ideal materials for aviation runways.

(4) Building materials ceramics and grinding wheel industrial applications utilize their thermal conductivity. Thermal radiation, high thermal intensity and the characteristics of thin plate kiln furniture can not only reduce the kiln furniture capacity, but also improve the kiln filling capacity and product quality, shorten the production cycle, and is an ideal indirect material for ceramic glaze baking and sintering.

Specifications:

Why choose us

1. 30 years of experience in the field of refractory metals, professional sales team, standard production workshop

2. Strict finished product inspection

3. Complete after-sales service system

4. Guarantee order completion through ZhenAn, 0 risk for orders.

FAQ:

Q : How can you control your quality?

A : For each production processing, ZhenAn have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.

Q: Are you a manufacture or trader?

A: Both, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Q : Do you provide free samples?

A : Of course, free samples are available.

Q: What is your lead time?

A : It usually needs about 15- 20 days after receiving the PO.