Method for manufacturing forged steel roll

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10144057
APP PUB NO 20150026957A1
SERIAL NO

14378763

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for manufacturing a forged steel roll comprises: casting, by the ESR method, a steel ingot which contains, by mass %, C: 0.3% or more, Si: 0.2% or more, Cr: 2.0-13.0% and Mo: 0.2% or more, and further contains Bi at 10-100 ppm by mass; and forging the steel ingot to manufacture the roll. According to this method, since freckle defects can be sealed near the center of the steel ingot, the roll can be stably used over a long period of time.

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Patent Owner(s)

  • NIPPON STEEL & SUMITOMO METAL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mizukami, Hideo Tokyo, JP 9 8
Onishi, Hirofumi Tokyo, JP 36 345
Sera, Tomoaki Tokyo, JP 3 18
Yamaguchi, Hideyoshi Tokyo, JP 1 1
Yamanaka, Akihiro Tokyo, JP 111 2000

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