Title:
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/025245
Kind Code:
A1
Abstract:
A non-oriented electrical steel sheet according to an embodiment of the present invention is a non-oriented electrical steel sheet comprising: more than 0 and equal to or less than 0.003 wt% of carbon (C); 2.0-4.0 wt% of silicon (Si); 0.1-0.5 wt% of manganese (Mn); 0.3-0.9 wt% of aluminum (Al); more than 0 and equal to or less than 0.015 wt% of phosphorus (P); more than 0 and equal to or less than 0.003 wt% of sulfur (S); more than 0 and equal to or less than 0.003 wt% of nitrogen (N); more than 0 and equal to or less than 0.003 wt% of titanium (Ti); and the remainder of Fe and other inevitable impurities, and the final microstructure satisfies formula 1: Formula 1: 0.00172[A] - 0.0266[B] < 2.0 (wherein [A] is the average number of secondary phase particles in a steel sheet cross-section with an area of 10 x 10 mm2, and [B] is a volume fraction value of particles with an average size of 2 ㎛ or more among the secondary phase particles (unit: %)).
Inventors:
CHO HAN HYUK (KR)
KANG CHUN KU (KR)
KANG CHUN KU (KR)
Application Number:
PCT/KR2023/010421
Publication Date:
February 01, 2024
Filing Date:
July 19, 2023
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C22C38/02; C21D8/12; C21D9/46; C22C38/00; C22C38/04; C22C38/06; C22C38/14; H01F1/147
Foreign References:
| KR20190127964A | 2019-11-13 | |||
| JP2020183583A | 2020-11-12 | |||
| JP2017179484A | 2017-10-05 | |||
| JP2022074677A | 2022-05-18 | |||
| JPH1088298A | 1998-04-07 |
Attorney, Agent or Firm:
LEE, In Haeng et al. (KR)
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