Where is silicon metal used
[The role of silicon metal] silicon metal is a large number of smelting into ferrosilicon alloy as an alloying element in the iron and steel industry, in many kinds of metal smelting as a reducing agent. Silicon is also a good component in aluminum alloys, and most cast aluminum alloys contain silicon. Silicon is the raw material of ultra-pure silicon in the electronic industry. The electronic devices made of ultra-pure semiconductor monocrystalline silicon have the advantages of small size, light weight, good reliability and long life. High-power transistors, rectifiers and solar cells made of silicon single crystals mixed with certain trace impurities are better than those made of germanium single crystals. The research on amorphous silicon solar cells has made rapid progress, and the conversion rate has reached more than 8%. The highest operating temperature of the silicon molybdenum rod electric heating element is up to 1700℃, and the resistance is not easy to age and has good oxidation resistance. Trichlorosilane, produced from silicon, can be prepared with hundreds of silicone lubricants and waterproof compounds. In addition, silicon carbide can be used as abrasive, quartz tube made of high purity silicon oxide is an important material for high purity metal smelting and lighting lamps. Silicon can not only record information, but also process it to obtain new information. Today's computers, thanks to technological advances and material improvements, can hold tens of thousands of transistors on a single piece of silicon the size of a fingernail. And has input, output, operation, storage and control information and a series of functions. Microporous calcium silicon insulation material Microporous calcium silicon insulation material is an excellent insulation material. It has the characteristics of small heat capacity, high mechanical strength, low thermal conductivity, non-combustion, non-toxic and tasteless, can be cut, convenient transportation and so on, can be widely used in metallurgy, electric power, chemical industry, ships and other thermal equipment and pipelines. After testing, the energy-saving benefit is better than asbestos, cement, vermiculite and cement perlite insulation materials. The special silica-calcium material can be used as catalyst carrier and widely used in petroleum refining, automobile exhaust purification and so on.
[silicon metal] also known as crystalline silicon or industrial silicon, its main use is as an additive in non-ferrous alloys. Silicon metal is a product smelted by quartz and coke in an electric furnace. The content of main component silicon element is about 98% (in recent years, the content of Si 99.99% is also included in the silicon metal), and the other impurities are iron, aluminum, calcium and so on.
