Invention Grant
- Patent Title: Non-oriented electrical steel sheet and method for manufacturing the same
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Application No.: US15539610Application Date: 2015-12-21
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Publication No.: US10941457B2Publication Date: 2021-03-09
- Inventor: Se Il Lee , Hun Ju Lee
- Applicant: POSCO
- Applicant Address: KR Pohang-si
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2014-0189064 20141224
- International Application: PCT/KR2015/014037 WO 20151221
- International Announcement: WO2016/105056 WO 20160630
- Main IPC: C21D9/46
- IPC: C21D9/46 ; C22C38/02 ; C21D8/12 ; C21D6/00 ; C22C38/00 ; C22C38/04 ; C22C38/06 ; C22C38/14 ; C22C38/60

Abstract:
A method for manufacturing a non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes performing hot rolling on a slab after heating the slab to manufacture a hot rolled sheet; performing hot rolled sheet annealing on the hot rolled sheet; performing cold rolling on a steel sheet on which the hot rolled sheet annealing is completed to manufacture a cold rolled sheet; and performing cold rolled sheet annealing on the cold rolled sheet in which a difference between a cold rolled sheet annealing temperature in the cold rolled sheet annealing and a hot rolled sheet annealing temperature in the hot rolled sheet annealing is 100° C. or lower.
Public/Granted literature
- US20170362676A1 NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2017-12-21
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