Title:
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2020/111783
Kind Code:
A3
Abstract:
The non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by weight %, 1.5 to 4.0% of Si, 0.7 to 2.5% of Al, 1 to 2% of Mn, 0.003 to 0.02% of Cu, at most 0.005% of S (not 0%), and the remainder in Fe and unavoidable impurities, and satisfies formulas 1 and 2 below. [Formula 1] 150≤[Mn]/[Cu]≤250 [Formula 2] 3≤[Cu]/[S]≤7 (In formulas 1 and 2, [Mn], [Cu], and [S] represent Mn, Cu, and S contents (weight %), respectively.)
Inventors:
LEE HUN JU (KR)
SHIN SU-YONG (KR)
KIM YONG-SOO (KR)
SHIN SU-YONG (KR)
KIM YONG-SOO (KR)
Application Number:
PCT/KR2019/016492
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; C22C38/16; H01F1/147
Foreign References:
| KR20180071640A | 2018-06-28 | |||
| KR20080027913A | 2008-03-28 | |||
| KR20090014383A | 2009-02-10 | |||
| JP2010174376A | 2010-08-12 | |||
| KR101353460B1 | 2014-01-21 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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