Title:
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/125864
Kind Code:
A1
Abstract:
A method for manufacturing a grain-oriented electrical steel sheet, according to one embodiment of the present invention, comprises: a step for producing a hot-rolled steel sheet by hot-rolling a slab; a step for hot-rolled-sheet-annealing the hot-rolled steel sheet; a step for firstly cold-rolling the hot-rolled-sheet-annealed hot-rolled steel sheet; a step for firstly decarburization-annealing the firstly cold-rolled steel sheet; a step for secondly cold-rolling the completely decarburization-annealed steel sheet; a step for secondly decarburization-annealing the completely secondly cold-rolled steel sheet; and a step for continuously annealing the secondly decarburization-annealed steel sheet.
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Inventors:
KO HYUN-SEOK (KR)
JUNG HONGWOOK (KR)
PARK SE-MIN (KR)
SEO JIN-WOOK (KR)
JUNG HONGWOOK (KR)
PARK SE-MIN (KR)
SEO JIN-WOOK (KR)
Application Number:
PCT/KR2020/018618
Publication Date:
June 24, 2021
Filing Date:
December 17, 2020
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C21D8/12; C22C38/02; C22C38/04
Foreign References:
| KR20160063895A | 2016-06-07 | |||
| KR20170074635A | 2017-06-30 | |||
| KR20140058942A | 2014-05-15 | |||
| KR20190077890A | 2019-07-04 | |||
| JPH10317060A | 1998-12-02 |
Other References:
See also references of EP 4079873A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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