Clad material for electric contacts and method for producing the clad material

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United States of America Patent

PATENT NO 11094478
APP PUB NO 20190139721A1
SERIAL NO

16095217

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Abstract

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The present invention is a clad material for an electric contact, including a base material composed of a Cu-based, precipitation-type age-hardening material, and a contact material composed of an Ag alloy bonded to the base material. On a bonded interface between the contact material and the base material, a width of a diffusion region including Ag and Cu is 2.0 μm or shorter. The clad material is produced by bonding each other the contact material and the base material having undergone solutionizing and age-hardening beforehand, suppressing the diffusion region from expanding after bonding. The present invention is capable of providing an electric contact, which achieves higher conductivity, without sacrificing property of the Cu-based, precipitation-type age-hardening material.

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Patent Owner(s)

Patent OwnerAddress
TANAKA KIKINZOKU KOGYO K K7-3 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100-6422

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoyama, Yoshinori Hiratsuka, JP 15 14
Ido, Ryuta Oshu, JP 3 3
Niitsuma, Takumi Oshu, JP 3 4
Takahashi, Hideya Oshu, JP 22 558
Takeuchi, Junichi Oshu, JP 109 1295

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