Grain-oriented electrical steel sheet and transformer iron core using same

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United States of America

PATENT NO 10559410
APP PUB NO 20160133368A1
SERIAL NO

14894697

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Abstract

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A grain-oriented electrical steel sheet subjected to magnetic domain refining by linearly introducing strains in a direction intersecting a rolling direction of the steel sheet repeatedly with intervals in the rolling direction, wherein if a repeating interval of the strains in the rolling direction is d (mm) and, when the steel sheet is placed on a flat surface, a mean value of difference between a height from the flat surface in linear strain-introduced areas of a steel sheet surface and a height from the flat surface in intermediate points between adjacent linear strain-introduced areas is h (mm), then the ratio h/d of the h to the d is 0.0025 or more and 0.015 or less.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATIONTOKYO 100-0011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoue, Hirotaka Tokyo, JP 27 58
Okabe, Seiji Tokyo, JP 55 120
Takajo, Shigehiro Tokyo, JP 34 23

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