发明名称 GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET WITH CHROMIUM-FREE COATING, AND MANUFACTURING METHOD THEREFOR
摘要 PROBLEM TO BE SOLVED: To provide a grain-oriented electromagnetic steel sheet with a chromium-free coating, which realizes the same level of high moisture-absorption resistance and low iron loss as those of the steel sheet having a chromium-containing coating formed thereon, even though the applied coating does not contain chromium, and to provide a manufacturing method therefor. SOLUTION: The grain-oriented electromagnetic steel sheet has a phosphate-based tensile-force-imparted coating which does not contain chromium, through a ceramic underlying film, on the surface of a steel sheet, wherein the content of titanium in the underlying film is controlled into 0.05 g/m<SP>2</SP>to 0.5 g/m<SP>2</SP>. COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006137970(A) 申请公布日期 2006.06.01
申请号 JP20040326579 申请日期 2004.11.10
申请人 JFE STEEL KK 发明人 WATANABE MAKOTO;TODA HIROAKI;MURAKI MINEO
分类号 C21D8/12;C22C38/00;C22C38/02;C22C38/60;C23C22/00;H01F1/18 主分类号 C21D8/12
代理机构 代理人
主权项
地址