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    GRAIN ORIENTED ELECTRICAL STEEL SHEET
    1.
    发明申请
    GRAIN ORIENTED ELECTRICAL STEEL SHEET 有权
    面向电磁钢板

    公开(公告)号：US20130133783A1

    公开(公告)日：2013-05-30

    申请号：US13814629

    申请日：2011-08-04

    申请人： Hiroi Yamaguchi ,  Seiji Okabe ,  Takeshi Omura ,  Tadashi Nakanishi

    发明人： Hiroi Yamaguchi ,  Seiji Okabe ,  Takeshi Omura ,  Tadashi Nakanishi

    IPC分类号： H01F1/01

    CPC分类号： H01F1/01 ,  C21D8/1261 ,  C21D8/1283 ,  C21D8/1288 ,  C21D8/1294 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/34 ,  H01F1/16

    摘要： A grain oriented electrical steel sheet has a magnetic domain structure modified by strain introduction without a trace of treatment, in which noise generated when the grain oriented electrical steel sheet is used laminated on an iron core of a transformer is effectively reduced by: setting a magnetic flux density B8 to 1.92 T or higher; then setting a ratio of average magnetic domain width of treated surface after strain-introducing treatment Wa to average magnetic domain width before strain-introducing treatment W0 as Wa/W0 0.7; and further setting a ratio of average width of magnetic domain discontinuous portion in the untreated surface to average width of magnetic domain discontinuous portion in treated surface resulting from strain-introducing treatment Wc as Wd/Wc>0.8; and setting Wc

    摘要翻译： 晶粒取向电工钢板具有通过应变引入改性的磁畴结构，而不需要进行微处理，当通过使用层压在变压器的铁芯上的方向的电磁钢板产生的噪声有效地减小：设置磁 磁通密度B8〜1.92T以上; 然后将应变导入处理后的处理面的平均磁畴宽度与应变导入处理前的平均磁畴宽度W0设定为Wa / W0 <0.4; 并将Wa与未处理表面Wb的平均磁畴宽度的比设定为Wa / Wb> 0.7; 进一步将未处理面的磁畴不连续部的平均宽度与应变导入处理Wc的处理面的磁畴不连续部的平均宽度的比设为Wd / Wc> 0.8; 并设置Wc <0.3.5 mm。

    GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
    8.
    发明申请
    GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME 有权
    面向电磁钢板及其制造方法

    公开(公告)号：US20130129984A1

    公开(公告)日：2013-05-23

    申请号：US13814532

    申请日：2011-08-05

    申请人： Takeshi Omura ,  Hirotaka Inoue ,  Hiroi Yamaguchi ,  Seiji Okabe

    发明人： Takeshi Omura ,  Hirotaka Inoue ,  Hiroi Yamaguchi ,  Seiji Okabe

    IPC分类号： H01F41/00

    CPC分类号： H01F41/00 ,  B21B3/02 ,  C21D8/1255 ,  C21D8/1272 ,  C21D8/1283 ,  C21D8/1288 ,  C21D8/1294 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/34 ,  H01F1/18 ,  Y10T428/2457 ,  Y10T428/24612

    摘要： A grain oriented electrical steel sheet has thickness of forsterite film at bottom portions of grooves formed on a surface of the steel sheet is ≧0.3 μm, groove frequency is ≦20%, abundance ratio of grooves crystal grains directly beneath themselves, each crystal grain having orientation deviating from Goss orientation by ≧10° and grain size ≧5 μm, total tension exerted on the steel sheet in the rolling direction by the forsterite film and tension coating is ≧10.0 MPa, total tension exerted on the steel sheet in a direction perpendicular to the rolling direction by the forsterite film and tension coating is ≧5.0 MPa and total tension satisfies 1.0≦A/B≦5.0, where A is total tension exerted in rolling direction by forsterite film and tension coating, and B is total tension exerted in direction perpendicular to rolling direction by forsterite film and tension coating.

    摘要翻译： 晶粒取向电工钢板在钢板表面形成的槽底部的镁橄榄石膜的厚度>0.3μm，槽频率为20％，自身下方的槽晶粒的丰度比，各晶粒 具有与高斯取向偏离> = 10°并且晶粒尺寸>5μm的方向，通过镁橄榄石膜和张力涂层在轧制方向上施加在钢板上的总张力> = 10.0MPa，施加在钢板上的总张力 在通过镁橄榄石膜垂直于轧制方向的方向上，张力涂层为> = 5.0MPa，总张力满足1.0 @ A / B @ 5.0，其中A是通过镁橄榄石膜和张力涂层在轧制方向上施加的总张力，B 是通过镁橄榄石膜和张力涂层在垂直于轧制方向的方向上施加的总张力。