Title:
GRAIN ORIENTED ELECTROMAGNETIC STEEL PLATE AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/051923
Kind Code:
A1
Abstract:
A grain oriented electromagnetic steel plate having a phosphate based tension imparting coating containing no chromium formed over the surface of a steel plate with a ceramic underlying film interposed therebetween. Since the weight per square meter of oxygen in the underlying film is set in the range of 2.0-3.5 g/m2 per both sides of the steel plate, a grain oriented electromagnetic steel plate with chromiumless coating exhibiting coating characteristics of the same level as that of a steel plate having a coating containing chromium and realizing uniform high moisture absorption and low iron loss is provided.
Inventors:
WATANABE MAKOTO (JP)
TODA HIROAKI (JP)
MURAKI MINEO (JP)
TODA HIROAKI (JP)
MURAKI MINEO (JP)
Application Number:
PCT/JP2005/020765
Publication Date:
May 18, 2006
Filing Date:
November 07, 2005
Export Citation:
Assignee:
JFE STEEL CORP (JP)
WATANABE MAKOTO (JP)
TODA HIROAKI (JP)
MURAKI MINEO (JP)
WATANABE MAKOTO (JP)
TODA HIROAKI (JP)
MURAKI MINEO (JP)
International Classes:
C22C38/00; C21D8/12; C21D9/46; C23C22/00; H01F1/16
Foreign References:
| JPH11241120A | 1999-09-07 | |||
| JP2004143564A | 2004-05-20 | |||
| JPH0978131A | 1997-03-25 |
Other References:
See also references of EP 1811053A4
Attorney, Agent or Firm:
Ochiai, Kenichiro c/o Patent, Application Dept (JFE TECHNO-RESEARCH CORPORATION 1-10,
Nihonbashi 2-chom, Chuo-ku Tokyo 27, JP)
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