METHOD OF PRODUCING NON-ORIENTED ELECTRICAL STEEL SHEET
    5.
    发明申请
    METHOD OF PRODUCING NON-ORIENTED ELECTRICAL STEEL SHEET 审中-公开
    生产非导电电工钢板的方法

    公开(公告)号:US20130263981A1

    公开(公告)日:2013-10-10

    申请号:US13992011

    申请日:2011-12-16

    IPC分类号: C21D8/02

    摘要: A non-oriented electrical steel sheet having a high magnetic flux density in a rolling direction of the steel sheet is produced by hot rolling a raw steel material including C: not more than 0.03 mass %, Si: not more than 4 mass %, Mn: 0.03˜3 mass %, Al: not more than 3 mass %, S: not more than 0.005 mass %, N: not more than 0.005 mass % and the balance being Fe and inevitable impurities, and then cold rolling and finishing annealing to produce a non-oriented electrical steel sheet, characterized in that a crystal grain size before the cold rolling is rendered into not more than 100 μM and the finishing annealing is conducted by rapidly heating up to a temperature exceeding recrystallization temperature at an average temperature rising rate of not less than 100° C./sec.

    摘要翻译: 通过将包含C:0.03质量%以下的原料钢,Si:4质量%以下的原料钢热轧,制造钢板的轧制方向的磁通密度高的无方向性电磁钢板 :0.03〜3质量%,Al:3质量%以下S:0.005质量%以下N:0.005质量%以下,余量为Fe和不可避免的杂质,然后冷轧终轧退火至 制造无取向电工钢板,其特征在于,冷轧前的结晶粒径为100μm以下,通过以平均升温速度快速升温至超过再结晶温度的温度进行精加工退火 不低于100℃/秒。

    METHOD OF PRODUCING NON-ORIENTED ELECTRICAL STEEL SHEET
    7.
    发明申请
    METHOD OF PRODUCING NON-ORIENTED ELECTRICAL STEEL SHEET 审中-公开
    生产非导电电工钢板的方法

    公开(公告)号:US20130146187A1

    公开(公告)日:2013-06-13

    申请号:US13812430

    申请日:2011-08-25

    IPC分类号: C21D8/02

    摘要: Disclosed is a method for producing a non-oriented magnetic steel sheet, wherein a steel slab that consists of 0.01-0.1 mass % of C, 4 mass % or less of Si, 0.05-3 mass % of Mn, 3 mass % or less of Al, 0.005 mass % or less of S, 0.005 mass % or less of N and the balance made up of Fe and unavoidable impurities is subjected to hot rolling, cold rolling and final annealing. By carrying out the final annealing, while setting the average heating rate during the heating to 100° C./sec or more and setting the soaking temperature within the temperature range of 750-1100° C., a non-oriented magnetic steel sheet that has extremely increased magnetic flux density in the rolling direction of the steel sheet is advantageously produced.

    摘要翻译: 本发明提供一种无取向磁钢板的制造方法,其特征在于,钢板由C:0.01-0.1质量%,Si 4质量%以下,Mn:0.05〜3质量%,3质量%以下 的Al,0.005质量%以下的S,0.005质量%以下的N,余量由Fe和不可避免的杂质构成,进行热轧,冷轧,最终退火。 通过进行最终退火,在将加热时的平均加热速度设定为100℃/秒以上,将均热温度设定在750〜1100℃的温度范围内的非取向磁钢板 钢板的轧制方向的磁通密度极大地提高。