首页> 外国专利> GRAIN-ORIENTED ELECTRICAL STEEL SHEET, FINISH ANNEALING-USE STEEL SHEET, ANNEALING SEPARATOR, METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING FINISH ANNEALING-USE STEEL SHEET

GRAIN-ORIENTED ELECTRICAL STEEL SHEET, FINISH ANNEALING-USE STEEL SHEET, ANNEALING SEPARATOR, METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING FINISH ANNEALING-USE STEEL SHEET

机译:晶粒取向电工钢板,终退火用钢板,退火分离器,制造晶粒取向电工钢板的方法,以及终退火用钢板的制造方法

摘要

Grain-oriented electrical steel sheet excellent in magnetic properties and adhesion of a primary coating to a base steel sheet and with few defects where the base metal is exposed in point defects and a method for manufacturing grain-oriented electrical steel sheet are provided. This is characterized by being provided with a base steel sheet and a primary coating. The primary coating satisfies (1) Number density D3 of Al concentrated regions: 0.015 to 0.150/μm2, (2) (Area S5 of regions comprised of anchoring oxide layer regions and Al concentrated regions)/(area S3 of Al concentrated regions)≥0.30, (3) Distance H5 of mean value of heights in thickness direction of regions of comprised of anchoring oxide layer regions and Al concentrated regions minus H0: 0.4 to 4.0 μm, (4) (Perimeter L5 of regions comprised of anchoring oxide layer regions and Al concentrated regions)/(observed area S0): 0.020 to 0.500 μm/μm2, and (5) (Area S1 of anchoring oxide layer regions)/(observed area S0)≥0.15.
机译:本发明提供了一种晶粒取向电工钢片及其制造方法,所述晶粒取向电工钢片具有优异的磁性,并且在基体金属暴露在点缺陷中的情况下,一次涂层与基体钢板的附着力良好,且几乎没有缺陷。其特征在于提供了一个基础钢板和一层涂层。一次涂层满足(1)铝集中区域的数密度D3:0.015至0.150/μm2,(2)(由锚定氧化层区域和铝集中区域组成的区域的面积S5)/(铝集中区域的面积S3)≥0.30,(3)由锚定氧化层区域和铝集中区域组成的区域在厚度方向上的平均高度值的距离H5减去H0:0.4至4.0μm,(4)(由锚定氧化层区域和铝集中区域组成的区域的周长L5)/(观察区域S0):0.020至0.500μm/μm2,(5)(锚定氧化层区域的面积S1)/(观察区域S0)≥0.15.

著录项

  • 公开/公告号US2022081743A1

    专利类型

  • 公开/公告日2022-03-17

    原文格式PDF

  • 申请/专利权人 NIPPON STEEL CORPORATION;

    申请/专利号US202017421338

  • 申请日2020-01-08

  • 分类号C22C38/06;H01F1/16;C22C38/02;C22C38/04;C21D8/02;C21D9/46;

  • 国家 US

  • 入库时间 2022-08-24 23:54:40

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