Non-oriented electrical steel sheet and method for manufacturing the same

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United States of America Patent

PATENT NO 10941457
APP PUB NO 20170362676A1
SERIAL NO

15539610

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Abstract

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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.

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Patent Owner(s)

  • POSCO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Hun Ju Pohang-si, KR 12 43
Lee, Se Il Pohang-si, KR 7 10

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