METHOD FOR PRODUCING ELECTRIC STEEL
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专利名称：METHOD FOR PRODUCING ELECTRIC STEEL 发明人：TSEYTLIN, Genrikh Avramovich,LOBANOV, Mikhail Livovich,SHEVELEV, Valery
Valentinovich,LISIN, Vladimir
Sergeevich,SKOROKHODOV, Vladimir
Nikolaivich,NASTICH, Vladimir
Petrovich,TSYRLIN, Mikhail
Borisovich,CHERNOV, Pavel
Pavlovich,MAMYSHEV, Valery
Andreevich,KUKARTSEV, Vladimir
Mikhailovich,LARIN, Yuri Ivanovich
申请号：RU2003000024
申请日：20030128
公开号：WO04/001075P1
公开日：
20031231
专利内容由知识产权出版社提供
摘要：The invention relates to metallurgy and can be used for producing cold-strip anisotropic electrical steel. The inventive method involves the following stages: steel making, steel casting, hot rolling, descaling, two cold rollings associated with interstage decarburising annealing and high-temperature rectifying annealing. The thus produced steel contains: 0.021-0.055 mass % of carbon, 2.8-3.6 mass % of silicon, 0.1-o.3 mass % of manganese, 0.4-0.6 mass % of copper, 0.011-0.018 mass % of acid-soluble aluminium, 0.007-0.012 mass % of nitrogen, the rest being iron and inevitable impurities. The hot rolling temperature is selected according to the following formula: Tkcr={970-([ %C]-
0.018) x 3000+([ %Si]-2.8) 60}?20, °C, wherein [ %C] and [ %Si] are the carbon and silicon concentrations in mass % in steel, respectively. Said method makes it possible to obtain high-repeatability values of magnetic induction and low values of specific loss of electrical steel, thereby making it possible to efficiently use said steel for the production of distribution and power transformers.
申请人：OTKRYTOE AKTSIONERNOE OBSCHESTVO 'NOVOLIPETSKY METALLURGICHESKY KOMBINAT'
地址：RU
国籍：RU
代理机构：THE UNIVERSAL CONSULTING COMPANY OF INDEPENDENT PATENT ATTORNEYS 'LEV KLIMENKO LTD.'
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