Silicon Metal Production
Chinese production of silicon metal (silicon content is 98.5%), the production of original metallurgical silicon, chemical metal silicon (silicon content is 99.85%) since the mid-1990s to develop, in recent years, the production and exports of chemical silicon in china grew rapidly.
Silicon metal component is an important physical property of silicon metal. As the silicon metal more and more applied in people's daily lives and industrial production, the studies on silicon metal has very important significance.
Metal silicon (Si) is the industrial purification of elemental silicon, mainly for the production of organic silicon, preparation of high purity semiconductor materials and the preparation of special purpose alloys.
Silicon metal, also known as crystalline silicon or industrial silicon, its main use is as a non-iron-based alloy additives. Its add-on products include: microsilica, silicon edge leather, black silicon, silicon metal slag.
China is the origin of the world's leading silicon metal, Chinese silicon metal export price is always low, coupled with low-level redundant construction and the race to cut prices on the Chinese domestic disorderly competition, make Chinese silicon metal export prices grossly low.
Metal silicon is a brittle material, sieve residue in the grinding process can not be well controlled, serious over-grinding phenomenon caused by silica fume waste, high production costs, product size standards, not only makes the product yield not competitive.
According to metal powder supplier, silicon metal ( also known as industrial silicon ) is a name of commodity appeared in 1960s. Its appear is related to the rise of semiconductor industry.
The raw materials of smelting metallic silicon are mainly silica, carbonaceous reductant. Produce silicon metal choose the carbonaceous reducing principle is: high fixed carbon, low ash, chemical activity.
Industrial silicon, commonly known as metal silicon or silicon, strictly speaking, does not belong to the industrial silicon ferroalloy industry, traditionally used as industrial silicon smelting furnace, so make the industrial silicon into iron alloy industry.
According to metal powder supplier, manganese metal production has aluminum thermal, silicon thermal methods and electrolysis methods three kinds.
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Because the high melting point of silicon nitride ceramics, for metal and the oxide melt have considerable high temperature stability, increasingly used in various fields of thermal, such as ceramic firing batts, roll bars, and high-temperature bearings, turbine blades.
According to metal powder supplier, silicon is a non-metallic element. Elemental silicon has amorphous and crystalline two states.
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The silicon metal is a hard brittle material. In the grinding process, residue can not be effectively controlled and the problem of over-grinding is serious, it results in product wastage, high production costs and product particle size of non-compliance and makes the products with no competitiveness.