1. In the aluminum alloy industry, replacing pure aluminum in the steelmaking process can improve the utilization rate of deoxidizer, purify molten steel and improve the quality of steel. Aluminum used in automobile and other industries has a considerable demand for industrial silicon, so the development of the automobile industry in a region or country has a direct impact on the rise and fall of the industrial silicon market.
2. As an additive for non-ferrous alloys, industrial silicon is also used as an alloying agent for silicon steel with strict requirements, and as a deoxidizer for smelting special steel and non-ferrous alloys.
3. In the chemical industry, it is used to produce silicone rubber, silicone resin, silicone oil and other silicone. Silicone rubber has good elasticity and high temperature resistance. It is used to make medical supplies, high temperature resistant gaskets, etc. Silicone resin is used in the production of insulating paint, high temperature paint, etc. Silicone oil is an oil, whose viscosity is little affected by temperature. It is used in the production of lubricants, polishes, fluid springs, dielectric liquids, etc. it can also be processed into colorless and transparent liquids.
4. Industrial silicon is purified by a series of processes to produce polycrystalline silicon and monocrystalline silicon for use in photovoltaic industry and electronic industry. Crystalline silicon cells are mainly used in solar rooftop power stations, commercial power stations and urban power stations with high land costs. They are solar photovoltaic products with mature technology and wide applications at present, and their demand for metallic silicon has increased significantly. Modern large-scale integrated circuits are almost 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 an industry in the information age.