Cylinder device, metal sliding component, and method for producing metal sliding component

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United States of America Patent

PATENT NO 12049707
APP PUB NO 20220356590A1
SERIAL NO

17621416

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Abstract

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This cylinder device includes a tubular cylinder that has an opening portion on at least one end side, a metal rod that protrudes through the opening portion of the cylinder, and a sliding contact member that is provided at the opening portion of the cylinder and comes into sliding contact with the rod. A chromium plating film is provided on a surface of the rod. An aspect ratio of an average crystallite diameter in a film thickness direction to an average crystallite diameter in an in-plane direction in the chromium plating film is 0.2 or smaller.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ASTEMO LTDIBARAKI 312-8503

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakano, Hiroshi Hitachinaka, JP 377 4094
Ohnuki, Takuma Hitachinaka, JP 2 0

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