Sliding contact material and method for manufacturing same

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United States of America Patent

PATENT NO 10378086
APP PUB NO 20180223394A1
SERIAL NO

15527422

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention is a sliding contact material having a composition of Cu of 6.0% by mass or more and 9.0% by mass or less, Ni of 0.1% by mass or more and 2.0% by mass or less, an additive element M of 0.1% by mass or more and 0.8% by mass or less, and the balance being Ag. The additive element M is at least one element selected from the group consisting of Sm, La and Zr. The present sliding contact material has a material structure in which dispersion particles containing an intermetallic compound containing at least both Ni and an additive element M are dispersed in an Ag alloy matrix. It is required that the ratio of a Ni content (% by mass) and a content of an additive element M (% by mass) (KNi/KM) in the dispersion particles falls within a predetermined range. The present invention is an Ag alloy-based sliding contact material more excellent also in abrasion resistance than conventional ones, and a material adaptable to higher rotation numbers of micromotors.

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Patent Owner(s)

Patent OwnerAddress
TANAKA KIKINZOKU KOGYO K KTOKYO 100-6422

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asada, Takao Oshu, JP 11 43
Niitsuma, Takumi Oshu, JP 3 4
Takahashi, Masahiro Tomioka, JP 489 7038
Tsuruta, Terumasa Tomioka, JP 4 2

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