Title:
NON-DIRECTIONAL ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/111781
Kind Code:
A3
Abstract:
A non-directional electrical steel sheet according to one embodiment of the present invention comprises: 1.5-4.0 wt% of Si; 0.1-1.5 wt% of Mn; 0.7-1.5 wt% of Al; 0.0001-0.003 wt% of Bi; and 0.0001-0.003 wt% of Ga, with the balance comprising Fe and inevitable impurities, and satisfies formula 1. [Formula 1] [Al] + [Mn] ≥ 0.87 (In formula 1, [Al] and [Mn] represent the contents (weight%) of Al and Mn, respectively.)
Inventors:
PARK JUNE SOO (KR)
HONG JAEWAN (KR)
SONG DAE-HYUN (KR)
HONG JAEWAN (KR)
SONG DAE-HYUN (KR)
Application Number:
PCT/KR2019/016490
Publication Date:
August 13, 2020
Filing Date:
November 27, 2019
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22C38/02; C21D8/12; C22C38/04; C22C38/06; H01F1/147
Foreign References:
| KR20080027913A | 2008-03-28 | |||
| KR20180070949A | 2018-06-27 | |||
| JP2007031793A | 2007-02-08 | |||
| KR101898368B1 | 2018-09-12 | |||
| KR101700694B1 | 2017-01-31 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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