Title:
GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/121274
Kind Code:
A1
Abstract:
A grain oriented electrical steel sheet according to an embodiment of the present invention comprises: a grain oriented electrical steel sheet substrate; and a metal oxide layer disposed on both sides of the grain oriented electrical steel sheet substrate. The maximum percentage of Al in the metal oxide layer is 0.15-1.0 wt%, and the ratio (DWL/DWS) of the average magnetic domain width (DWL) of the side having a larger average magnetic domain width to the average magnetic domain width (DWS) of the side having a smaller average magnetic domain width among the two sides of the electrical steel sheet substrate is 1.2-1.8.
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Inventors:
KIM JAE-SONG (KR)
YANG IL-NAM (KR)
MIN SEONGHOON (KR)
YANG IL-NAM (KR)
MIN SEONGHOON (KR)
Application Number:
PCT/KR2022/020914
Publication Date:
June 29, 2023
Filing Date:
December 21, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C21D8/12; C21D10/00; C22C38/00; C22C38/02; C22C38/04; C22C38/06; C22C38/34
Foreign References:
| KR20130038713A | 2013-04-18 | |||
| JP2012052232A | 2012-03-15 | |||
| KR101751523B1 | 2017-06-27 | |||
| JP2000109961A | 2000-04-18 | |||
| JP2004197125A | 2004-07-15 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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