Silicon steel sheet and method thereof
    9.
    发明授权
    Silicon steel sheet and method thereof 失效
    硅钢板及其制造方法

    公开(公告)号:US06241829B1

    公开(公告)日:2001-06-05

    申请号:US09457551

    申请日:1999-12-09

    IPC分类号: H01F104

    摘要: A silicon steel sheet contains 0.01 wt. % or less C, 4 to 10 wt. % Si, 0.5 wt. % or less Mn, 0.01 wt. % or less P, 0.01 wt. % or less S, 0.2 wt. % or less sol. Al, 0.01 wt. % or less N, 0.02 wt. % or less O and the balance being Fe. The silicon steel sheet has grain boundaries and carbides which are precipitated on the grain boundaries. The carbides have an area of 20% or less to an area of the grain boundaries. The steel sheet is cooled at a cooling speed of 5° C./sec. or more in a temperature range of from 300 to 700° C.

    摘要翻译: 硅钢板含有0.01重量% %以下C,4〜10重量% %Si,0.5wt。 %以下Mn,0.01重量% %以下P,0.01重量% %以下S,0.2重量% %以下溶胶。 Al,0.01wt。 %以下N,0.02重量% %以下,余量为Fe。 硅钢板具有在晶界析出的晶界和碳化物。 碳化物的面积相对于晶界的面积为20%以下。 钢板以5℃/秒的冷却速度冷却。 或更高的温度范围。