Method for manufacturing oriented electrical steel sheet by heating slab
at low temperature
    1.
    发明授权
    Method for manufacturing oriented electrical steel sheet by heating slab at low temperature 失效
    低温加热板材制造取向电工钢板的方法

    公开(公告)号:US5653821A

    公开(公告)日:1997-08-05

    申请号:US481353

    申请日:1995-07-07

    摘要: A method for manufacturing an oriented electrical steel sheet includes the step of preparing a steel slab composed of in weight %: 0.035-0.050% of C, 2.9-3.3% of Si, less than 0.016% of P, 0.011-0.017% of soluble Al, 0.0080-0.012% of N, less than 0.007% of S, 0.06-0.18% of Ni+Cr, less than 0.32% of Mn with an Mn/S ratio of 20 or more, less than 0.6% of Cu with a Cu/Mn ratio of 1.5 or more, and balance of Fe and other inevitable impurities. The steel slab is heated at a temperature of 1250.degree.-1320.degree. C., and then hot rolled. The hot rolled slab is then cold rolled in two stages to a final sheet thickness, with a decarburization annealing being carried out at an intermediate thickness. The decarburized cold rolled sheet is coated with an annealing separator containing MgO as the main ingredient and then a finish annealing treatment is conducted, thereby obtaining a magnetically superior oriented electrical steel sheet.

    摘要翻译: PCT No.PCT / KR94 / 00160 Sec。 371日期:1995年7月7日 102(e)日期1995年7月7日PCT 1994年11月9日PCT PCT。 WO95 / 13401 PCT出版物 日期:1995年5月18日一种取向电工钢板的制造方法,其特征在于,制造钢板的重量%:C:0.035〜0.050%,Si:2.9-3.3%,P:0.016%以下,0.011〜 0.017%的可溶性Al,0.0080-0.012%的N,小于0.007%的S,0.06-0.18%的Ni + Cr,小于0.32%的Mn,Mn / S比为20以上,小于0.6% 的Cu / Mn比为1.5以上,余量为Fe等不可避免的杂质。 钢坯在1250〜-1320℃的温度下加热,然后热轧。 然后将热轧板坯分两个阶段冷轧至最终的板厚,进行中间厚度的脱碳退火。 将脱碳冷轧板涂布有以MgO为主成分的退火分离体,进行最终退火处理,得到磁性优良的取向电工钢板。

    Method for manufacturing high magnetic flux denshy grain oriented electrical steel sheet based on low temperature slab heating method
    2.
    发明授权
    Method for manufacturing high magnetic flux denshy grain oriented electrical steel sheet based on low temperature slab heating method 有权
    基于低温板坯加热方法制造高磁通密度晶粒取向电工钢板的方法

    公开(公告)号:US06451128B1

    公开(公告)日:2002-09-17

    申请号:US09242865

    申请日:1999-02-25

    IPC分类号: H01F1147

    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。