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    Grain-oriented electrical steel sheet excellent in film characteristics and magnetic characteristics, process for producing same, and decarburization annealing facility used in same process
    2.
    发明授权
    Grain-oriented electrical steel sheet excellent in film characteristics and magnetic characteristics, process for producing same, and decarburization annealing facility used in same process 有权
    薄膜特性和磁特性优良的晶粒取向电工钢板及其制造方法以及在同一工序中使用的脱碳退火设备

    公开(公告)号：US06635125B2

    公开(公告)日：2003-10-21

    申请号：US10108064

    申请日：2002-03-27

    申请人： Kenji Kosuge ,  Kishio Mochinaga ,  Eiichi Nanba ,  Nobuo Tachibana ,  Shinya Ishii ,  Naoki Yagi

    发明人： Kenji Kosuge ,  Kishio Mochinaga ,  Eiichi Nanba ,  Nobuo Tachibana ,  Shinya Ishii ,  Naoki Yagi

    IPC分类号： C22C3802

    CPC分类号： C21D8/1283 ,  C21D3/04 ,  C21D8/1244 ,  C21D8/1272 ,  C23C8/18 ,  C23C28/00 ,  H01F1/14783

    摘要： A grain-oriented electrical steel sheet excellent in film and iron loss characteristics. The steel sheet contains up to 0.005% of C, 2.0 to 7.0& Si in terms of weight % and the balance iron and unavoidable impurities. An oxide film which mainly contains forsterite is formed on the surface and an insulating coating is formed on the oxide film. The peak intensity of Si obtained by glow discharge spectral analysis (GDS analysis) from the oxide film surface is at least ½ of that of Al, and the depth of the peak position of Si from the oxide film surface us up to {fraction (1/10)} of the depth of that of Al. The sheet satisfies the formulas for a ratio y(%) with which peeling of the oxide film does not take place when subjected to a bending test with a curvature of 20 mm and for core loss characteristic W (W/kg): y(%)≧−122.45t+112.55 W (W/kg)≦2.37t+0.280 wherein t represents a sheet thickness in terms of mm.

    摘要翻译： 薄膜和铁损特性优异的晶粒取向电工钢板。 钢板含有高达0.005％的C，2.0〜7.0＆Si，以重量％计，余量为铁和不可避免的杂质。 在表面上形成主要含有镁橄榄石的氧化膜，在氧化膜上形成绝缘涂层。 通过辉光放电光谱分析（GDS分析）从氧化膜表面获得的Si的峰值强度至少为Al的1/2，Si的氧化膜表面的峰值位置深度达到{分数（1） / 10为铝的深度，片材满足在进行曲率为20mm的弯曲试验和芯损耗特性的情况下氧化膜剥离不发生的比率y（％）的式 W（W / kg）：其中t表示以mm计的片材厚度。

    Method of hot rolling continuously cast grain oriented electrical steel slab
    4.
    发明授权
    Method of hot rolling continuously cast grain oriented electrical steel slab 失效
    连续铸造晶粒取向电工钢板热轧方法

    公开(公告)号：US5074931A

    公开(公告)日：1991-12-24

    申请号：US550856

    申请日：1990-07-10

    申请人： Kishio Mochinaga ,  Kiyokazu Ichimura ,  Shinji Shibao ,  Syuji Kitahara ,  Shiro Ichikawa

    发明人： Kishio Mochinaga ,  Kiyokazu Ichimura ,  Shinji Shibao ,  Syuji Kitahara ,  Shiro Ichikawa

    IPC分类号： B21B1/02 ,  B21B3/02 ,  C21D8/12

    CPC分类号： C21D8/1222 ,  C21D8/1205

    摘要： A continuously cast slab of grain-oriented electrical steel is heated, subjected to heavy-reduction edge rolling at such amount not less than 60 mm as is required for matching with the width of a hot-rolled coil to be produced therefrom, whereafter the dogbones formed in the slab by the heavy-reduction edge rolling are eliminated by horizontal rolling to obtain a flat slab. The flat slab is then heated to a high temperature and hot rolled. Optionally, the edges of the slab can be heated prior to the finish rolling step of the hot rolling process. The method enables production of grain-oriented electrical sheet with high productivity.

    摘要翻译： 对晶粒取向电工钢的连续铸造板进行加热，按照与要制造的热轧板卷的宽度相匹配的要求，进行不小于60mm的大幅度轧制轧制， 通过水平轧制消除通过重轧边缘轧制在板坯中形成的平板坯。 然后将平板坯加热至高温并热轧。 可选地，可以在热轧过程的精轧步骤之前对板坯的边缘进行加热。 该方法能够以高生产率生产晶粒取向电工片。

    Process for producing a grain-oriented electrical steel sheet
    5.
    发明授权
    Process for producing a grain-oriented electrical steel sheet 失效
    晶粒取向电工钢板的制造方法

    公开(公告)号：US4615750A

    公开(公告)日：1986-10-07

    申请号：US609201

    申请日：1984-05-11

    申请人： Kishio Mochinaga ,  Kohichi Fujiwara ,  Kazutaka Higashine ,  Hisashi Kobayashi

    发明人： Kishio Mochinaga ,  Kohichi Fujiwara ,  Kazutaka Higashine ,  Hisashi Kobayashi

    IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/02 ,  H01F1/16 ,  H01F1/04

    CPC分类号： H01F1/16 ,  C21D8/1222 ,  C22C38/02

    摘要： The present invention relates to a process for producing a grain-oriented electrical steel sheet by means of the so-called double-rolling process, using Mn, S, and Cu as the precipitation dispersion phases for suppressing the growth of primary-recrystallized crystal grains.A new concept according to the present invention is to suppress the growth of primary crystals by means of an element segregated in the grain boundaries of primary-recrystallized crystals.The present invention is characterized in that the silicon steel starting material contains T.[N] in an amount which satisfies the following formulas (1) and (2):T.[N].gtoreq.{[sol Al%].times.(14/27)+0.0020}(%) (1)T.[N].ltoreq.{[sol Al%].times.(14/27)+0.0060}(%) (2).

    摘要翻译： 本发明涉及通过所谓的双轧法制造方向性电磁钢板的方法，使用Mn，S和Cu作为用于抑制一次再结晶晶粒生长的析出分散相 。 根据本发明的新概念是通过分离在一次再结晶晶体的晶界中的元素来抑制一次晶体的生长。 本发明的特征在于，所述硅钢原料含有满足下式（1）和（2）的量的T. [N]：T. [N]> = {[sol Al％] x 14/27）+0.0020}（％）（1）T. [N]