Chinese,silicon,industry,statu business, insurance Chinese silicon industry status
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Silicon uses widely, our daily life can notwithout it, the modern high-tech cutting-edge areas also can not without it,with the continuous development of science and technology, the applicable valueof the silicon even looks more miraculous, such as refining high-puritysingle-crystal silicon from crude silicon is several times more than the sameamount of gold price, the applicability and economy of silicon can be imagined.Silicon prepared by silica and carbon reaction is thecrude silicon that containing a small amount of impurity, also called for metalsilicon, wherein the Si accounted for about 98%, Fe, Al, Ca, Zn, Cu, Ni, Sn,Pb, Mn, Ti, etc. accounted for approximately 2%, Silicon metals appearance is grayish-brownand with metal lustre, hard and brittle silicon blocks; industrial processingof silicon blocks to make finished silicon powder, can be divided into coarse powder, fine powder, minuteness powder,ultra-fine powder, can be used for high temperature refractory materials, suchas iron, aluminum, silica, silicone and other main raw material. Now siliconenew material with good development prospects, large market space, beprofitable.In 1957 with the help of the former Soviet Union, Chinaestablished the first Silicon metal businesses, the production is very small.Only in 1986 began bulk exports, then the silicon metal industry developedrapidly. Although from 1989, Chinese silicon metal industry hit by many internationalcountries, but it has not been completely overwhelmed, in contrary, make agreat progress on quantity, quality, variety and cost control and other aspects.First is the quantity, because of Chinese Siliconmetal businesses master the built furnace technology, do not need to hireprofessional built furnace designers any more, reduce most of the builtfurnaces cost. In the aspects of quality, the progress is more evident, inparticular the products refined, in the past, following the approach of theSoviet Union, pass chlorine into the ladle, the products are easy to wet. Atthe same time, due to Chinese companies information does not work, did notknow some of the international companies are using the methods of passingoxygen to refine, china attempt to use hollow carbon access to ladle bottom boostingoxygen and success, do a lot of promotion, and later was also used the method topass oxygen directly to the bottom of the ladle. At present, most of thefactories were used oxygen blowing to refine, some manufacturers usechlorine-oxygen combination method to make the calcium content dropping to verylow. If the pass oxygen refining is a clear sign of Chinese silicon metalquality improved. The inspection techniques improved and test equipment updatedalso a very important factor.While the Chinese silicon metal businesses haven'tfully achieve the automatic washing, automatic loading, automatic mixingingredients, fully automated control, but enterprises began to accumulate rawdata with computer, strengthens all the operations and the whole process ofquality control management, give full play to the human element in the processof using artificial materials or semi-automatic choose materials, cleaning. Relyingon scientific management and the accumulation of experience in the smelting, achievethe carefully filtered and optimal proportion of raw materials, ensure the highquality of smelting. In product appearance, factories pay attention to the finishingand packaging of products, in order to ensure the packaging clean, especially tomake the chemical products packaged clean, some factories wear a layer ofpackaging on the bag, and take off until loading. Due to the Silicon metalbusinesses pay attention to the quality control, so that the amount of chemicalgrade silicon metal products rose sharply.Source:http://www.mhcmp.com
Chinese,silicon,industry,statu