公开(公告)号：US06451128B1

公开(公告)日：2002-09-17

申请号：US09242865

申请日：1999-02-25

申请人： Chung San Lee ,  Chan Hye Han ,  Jong Soo Woo ,  Gyu Seung Choi ,  Jae Kwan Kim ,  Byung Deuk Hong ,  Kyu Seok Han

发明人： Chung San Lee ,  Chan Hye Han ,  Jong Soo Woo ,  Gyu Seung Choi ,  Jae Kwan Kim ,  Byung Deuk Hong ,  Kyu Seok Han

IPC分类号： H01F1147

CPC分类号： C21D3/04 ,  C21D8/1255 ,  C21D8/1272

摘要： A method for manufacturing a high magnetic flux density grain oriented electrical steel sheet is disclosed. A silicon steel slab is heated and hot-rolled, and the steel sheet is annealed and cold-rolled and decarburized. An annealing separator is spread on the steel sheet, and a final high temperature annealing is carried out. The silicon steel contains in weight % 0.02-0.045% of C, 2.90-3.30% of Si, 0.05-0.30% of Mn, 0.005-0.019% of Al, 0.003-0.008% of N, 0.006% or less of S (the above being main ingredients), 0.001-0.012% of B, and a balance of Fe and unavoidable impurities; or the above main ingredients plus 0.30-0.70% of Cu, 0.03-0.07% of Ni, 0.03-0.07% of Cr, and a balance of Fe and unavoidable impurities; or the above main ingredients plus 0.001-0.012% of B, 0.30-0.70% of Cu, 0.03-0.07% of Ni, 0.03-0.07% of Cr, and a balance of Fe and unavoidable impurities.

摘要翻译： 公开了一种制造高磁通密度晶粒取向电工钢板的方法。 对硅钢板进行加热热轧，对钢板进行退火冷轧，脱碳。 将退火分离器铺展在钢板上，进行最终的高温退火。 硅钢的重量％为C：0.02-0.045％，Si：2.90-3.30％，Mn：0.05-0.30％，Al：0.005-0.019％，N：0.003-0.008％，S：0.006％ 以上为主要成分），0.001-0.012％B，余量为Fe和不可避免的杂质; 或上述主要成分加入Cu 0.30-0.70％，Ni 0.03-0.07％，Cr 0.03-0.07％，余量为Fe和不可避免的杂质; 或上述主要成分加上0.001-0.012％的B，0.30-0.70％的Cu，0.03-0.07％的Ni，0.03-0.07％的Cr，余量的Fe和不可避免的杂质。