Title:
GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/190339
Kind Code:
A1
Abstract:
A grain-oriented electromagnetic steel sheet according to an embodiment of the present invention has magnetic domain refining process lines indicating the portions at which a magnetic domain refining process is carried out on magnetic domain control process lines that form an angle of 0-45° with respect to the direction perpendicular to the rolling direction and that are arranged in the rolling direction. The regions, of the magnetic domain control process lines, in which the magnetic domain refining process lines are absent and that have a length of 1 mm or more preferably have an average magnetic domain width of 500 μm or less. Alternatively, the regions, of the magnetic domain control process lines, in which the magnetic domain refining process lines are absent and that include two or more magnetic walls preferably have an average magnetic domain width of 500 μm or less.
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Inventors:
KAWAMURA YUSUKE (JP)
Application Number:
PCT/JP2023/012197
Publication Date:
October 05, 2023
Filing Date:
March 27, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00; H01F1/147
Foreign References:
| JPH11293340A | 1999-10-26 | |||
| JPS55119125A | 1980-09-12 | |||
| JP2012057218A | 2012-03-22 | |||
| JP2020169373A | 2020-10-15 | |||
| JP2008127632A | 2008-06-05 | |||
| CN106282512A | 2017-01-04 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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