Steel sheet for can making and method for manufacturing the same

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United States of America Patent

PATENT NO 11939692
APP PUB NO 20210324532A1
SERIAL NO

17271967

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Abstract

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A steel sheet for can making and methods for manufacturing the same. The steel sheet includes, in order from a steel sheet side, an iron-nickel diffusion layer, a metallic chromium layer, and a chromium oxide layer. The iron-nickel diffusion layer has a nickel coating weight of 50 mg/m2 to 500 mg/m2 per surface of the steel sheet and a thickness of 0.060 μm to 0.500 μm per surface of the steel sheet. The metallic chromium layer includes a flat-like metallic chromium sublayer and a granular metallic chromium sublayer placed on a surface of the flat-like metallic chromium sublayer. The total chromium coating weight of both sublayers per surface of the steel sheet is 60 mg/m2 to 200 mg/m2. The chromium oxide layer has a chromium coating weight 3 mg/m2 to 10 mg/m2 per surface of the steel sheet in terms of metallic chromium.

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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
Nakagawa, Yusuke Tokyo, JP 185 818
Sou, Hanyou Tokyo, JP 3 1
Yamanaka, Yoichiro Tokyo, JP 38 175

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