The difference between metal silicon 3303 and 411

 According to the content of iron, aluminum and calcium in metal silicon, metal silicon can be divided into 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101 and other different grades. Additional products of metal silicon: including silicon micropowder, edge silicon, black silicon, metal silicon slag, etc. Among them, silicon micropowder is also called silicon powder, microsilica fume or silica fume.

It is widely used in refractory and concrete industries for the use of metallic silicon:

Silicon metal (Si) is industrially purified elemental silicon, which is mainly used for the production of organic silicon, the preparation of high-purity semiconductor materials, and the preparation of alloys for special purposes. (1) The production of silicone rubber, silicone resin, silicone oil and other silicone rubber has good elasticity and high temperature resistance, and is used to make medical supplies, high temperature gaskets, etc. Silicone resins are used in the production of insulating paints, high temperature coatings, etc. Silicone oil is an oily substance whose viscosity is little affected by temperature. It is used in the production of advanced lubricants, glazing agents, fluid springs, dielectric liquids, etc. It can also be processed into colorless and transparent liquids and sprayed as advanced waterproofing agents. on the building surface. (2) Manufacturing of high-purity semiconductor Modern large-scale integrated circuits are almost all made of high-purity metal silicon, and high-purity metal silicon is also the main raw material for the production of optical fibers. It can be said that metal silicon has become the basic pillar industry of the information age. (3) The preparation of alloy silicon-aluminum alloy is the largest amount of silicon alloy.

Silicon aluminum alloy is a kind of strong composite deoxidizer, which can improve the utilization rate of deoxidizer by replacing pure aluminum in the steelmaking process, and can purify molten steel and improve the quality of steel. Silicon aluminum alloy has low density, low thermal expansion coefficient, good casting performance and anti-wear performance. The alloy castings cast with it have high impact resistance and good high pressure compactness, which can greatly improve the service life. It is often used to produce aerospace vehicles. and auto parts. Silicon copper alloy has good welding performance, and it is not easy to generate sparks when it is impacted. It has explosion-proof function and can be used to make storage tanks. Silicon is added to steel to make silicon steel sheet, which can greatly improve the magnetic permeability of steel, reduce hysteresis and eddy current loss, and can use it to make iron cores of transformers and motors to improve the performance of transformers and motors.

Silicon metal 3303 has high purity and can be used to make polysilicon.