发明名称 Grain-oriented electrical steel sheet with extremely low iron loss and method for manufacturing the same
摘要 The present invention relates to manufacturing a grain-oriented electric steel sheet. The present invention relates to a method for manufacturing a grain-oriented electric steel sheet having superior magnetic property and to a grain-oriented electric steel sheet manufactured by the method, wherein the method comprises heating a slab comprising 2.0 to 4.5 weight % of Si, 0.001 to 0.10 weight % of C, 0.010 weight % or lower of Al, 0.08 weight % or lower of Mn, 0.005 weight % or lower of N, 0.002 to 0.050 weight % of S, the remainder being Fe and other unavoidable impurities, performing hot-rolling of the heated slab, performing cold-rolling one time or twice or more times including an intermediate annealing, performing decarbonization and re-crystallizing annealing, and performing secondary re-crystallizing annealing.
申请公布号 KR101223115(B1) 申请公布日期 2013.01.17
申请号 KR20100133516 申请日期 2010.12.23
申请人 发明人
分类号 C21D8/12;C22C38/00;C22C38/06 主分类号 C21D8/12
代理机构 代理人
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