Title:
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/121268
Kind Code:
A1
Abstract:
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by wt%: 1.4-3.0 % of Si; 0.001-1.5 % of Mn; and 0.001-0.2 % of Al, with the remainder of Fe and inevitable impurities, wherein a thickness deviation in the direction perpendicular to a rolling direction is 1.5 ㎛ or less per 5-mm length, and a thickness derivation in the rolling direction is 10 ㎛ or less per 1000-m length.
Inventors:
HONG JAEWAN (KR)
JOO HYUNG DON (KR)
PARK JUNESOO (KR)
JOO HYUNG DON (KR)
PARK JUNESOO (KR)
Application Number:
PCT/KR2022/020903
Publication Date:
June 29, 2023
Filing Date:
December 20, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/02; C21D8/12; C22C38/00; C22C38/04; C22C38/06; C22C38/12; C22C38/14; C22C38/34; H01F1/147
Domestic Patent References:
| WO2019132425A1 | 2019-07-04 |
Foreign References:
| KR102043525B1 | 2019-11-12 | |||
| JP2018003049A | 2018-01-11 | |||
| KR101130725B1 | 2012-03-28 | |||
| KR102045655B1 | 2019-12-05 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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