Method for making grain-oriented silicon steel sheet having excellent
magnetic properties
    1.
    发明授权
    Method for making grain-oriented silicon steel sheet having excellent magnetic properties 失效
    制造具有优异磁特性的晶粒取向硅钢板的方法

    公开(公告)号:US5620533A

    公开(公告)日:1997-04-15

    申请号:US533841

    申请日:1995-09-26

    IPC分类号: C21D3/04 C21D8/12 H01F1/04

    CPC分类号: C21D3/04 C21D8/1255

    摘要: A method for producing a grain-oriented silicon steel sheet in the coil shape having high magnetic induction and including AlN and MnSe as principal inhibitors is disclosed. In a series of processes for producing a grain-oriented silicon steel sheet, the oxide content on the steel sheet surface is controlled within a range of about 0.02 to 0.10 g/m.sup.2 before the temperature elevation phase of a decarburization annealing process, and the ratio of the steam partial pressure to the hydrogen partial pressure is controlled within a range of about 0.2 to 0.65 at a steel sheet surface temperature ranging from about 500.degree. to 750.degree. C. during the temperature elevation phase in a decarburization annealing process. The method promotes stable secondary recrystallized grain formation even in different coils or at different places in the same coil, such that fluctuation of magnetic properties is depressed.

    摘要翻译: 公开了一种具有高磁感应线圈形状并包括AlN和MnSe作为主要抑制剂的晶粒取向硅钢板的制造方法。 在一系列用于制造晶粒取向硅钢板的方法中,在脱碳退火工序的升温阶段之前,将钢板表面的氧化物含量控制在约0.02〜0.10g / m 2的范围内, 在脱碳退火过程的升温阶段期间,在约500〜750℃的钢板表面温度下,将蒸汽分压至氢分压控制在约0.2〜0.65的范围内。 该方法即使在不同的线圈或相同线圈中的不同位置也促进稳定的二次再结晶晶粒形成,使得磁性的波动被抑制。