Description
Silicon metal 553 is a product smelted from silica and carbonaceous reducing agent in a submerged arc furnace. The main component silicon content is about 98%. Silicon metal 553 is an industrial purified elemental silicon, mainly used for producing organic silicon, producing high-purity semiconductor materials, and preparing alloys with special applications. 553 metal silicon is an extremely important intermediate product in the silicon product industry chain. It is the main raw material for manufacturing silicon polishing sheets, solar cells, and high-purity silicon products, and is the most basic raw material for the information industry and new energy industry.
content
1. In terms of content:
The proportions of iron, aluminum, and calcium in national standard metal silicon 553 are 0.5%, 0.5%, and 0.3%, respectively, and in terms of content, the silicon content in metal silicon must be as high as 98.5%. The deoxidizing effect is achieved during the steel smelting process.
2. In terms of price:
The price of high-quality metal silicon 553 is also relatively high. The price difference between non oxygenated and oxygenated types is also significant.
Use
(1) Production of organic silicon such as silicone rubber, silicone resin, and silicone oil:
Silicone rubber has good elasticity and high temperature resistance, and is used to make medical supplies, high-temperature resistant gaskets, etc. Silicone resin is used in the production of insulation paints, high-temperature coatings, etc. The viscosity of silicone oil is minimally affected by temperature and is used in the production of lubricants, polishing agents, fluid springs, dielectric liquids, etc. It can also be processed into colorless and transparent liquids as waterproofing agents and sprayed on the surface of buildings.
(2) Manufacturing high-purity semiconductors:
Modern large-scale integrated circuits are almost always made of high-purity silicon metal, and high-purity silicon metal 553 is also the main raw material for producing optical fibers. To some extent, it can be said that silicon metal 553 has become the basic pillar industry of the information age.
(3) Preparation of alloys:
Silicon aluminum alloy is the most commonly used silicon alloy. Silicon aluminum alloy is a strong composite deoxidizer, which can replace pure aluminum in the steelmaking process to improve the utilization rate of deoxidizer, purify steel liquid, and improve steel quality. Silicon aluminum alloy has low density, low coefficient of thermal expansion, good casting and wear resistance. The alloy castings cast with it have high impact resistance and good high-pressure density, which can greatly improve their service life. It is commonly used in the production of aerospace and automotive components.
Silicon copper alloy has good welding performance and is not easy to generate sparks when subjected to impact. It has explosion-proof function and can be used to make storage tanks.
Adding silicon to steel to make silicon steel sheets can greatly improve its magnetic conductivity, reduce hysteresis and eddy current losses, and can be used to manufacture iron cores for transformers and motors, improving their performance.
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