Origin and development history of silicon metal
Origin of silicon metal
China produces the earliest "metal silicon" (our country also calls industrial silicon) is a commodity name that appears in the middle of 60 time on century. Its emergence is related to the rise of the semiconductor industry. At present, the international general practice is to divide commercial silicon into metal silicon and semiconductor silicon. 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. A high purity silicon metal used to make semiconductor devices. It is polycrystalline, single crystal form sold, the former is cheap, the latter is expensive. Because of its different uses and divided into a variety of specifications. According to statistics, in 1999, the whole world consumed about 3.5 million tons of silicon metal, which used for aluminum alloy silicon metal accounted for about 60%, used for organic silicon less than 30%, used for semiconductor about 3%, the rest for iron and steel smelting and precision ceramics, etc..
Development history of silicon metal
As early as the beginning of the company, SiSi Metal has established long-term cooperative relations with several countries in Europe and America. Up to now, SiSi Metal has been developing foreign customers continuously with its good reputation and excellent product quality. SiSi Metal has a strong influence in the international silicon smelting industry. Belongs to energy-intensive manufacturing silicon metal smelting, silicon metal production in our country already has a long history, along with the national energy policy tightening and the development of energy conservation and emissions reduction, and to the promotion of the new energy, has become the primary silicon metal smelting products and processes, a lot of domestic new energy enterprises construction metal silicon, polycrystalline silicon, monocrystalline silicon, solar cells and so on a series of circulation industry chain, in recent decades has been affecting the whole energy sector in China's development and the application of new energy.
