TERMINAL MATERIAL AND TERMINAL

Title:

TERMINAL MATERIAL AND TERMINAL

Document Type and Number:

WIPO Patent Application WO/2024/062909

Kind Code:

A1

Abstract:

This terminal material comprises, in the following order, a base material which comprises copper or a copper alloy, one or more underlayers which are constituted by one or more element selected from the group consisting of Ni, Co, and Fe, and a silver-containing film. The silver-containing film includes a silver plating layer which contains not less than 50 mass% silver, and particles which comprise a non-conductive organic compound and which have a circle-equivalent diameter in contact with the silver plating layer of not more than 50 μm. When the following fretting test is performed, the contact resistance of the silver-containing-film-side surface is not more than 1 mΩ. Fretting test: Prepared are the terminal material which is to be tested and a counterpart material, in which is formed a hemispherical protrusion having a curvature radius R of 1.8 mm with respect to the silver-containing-film-side surface of the terminal material. The surface of the counterpart material which has the protrusion is caused to slide for 10,000 cycles against the silver-containing-film-side surface of the terminal material to be tested, wherein one cycle involves sliding back and forth with an applied vertical load of 3N, a sliding distance of 50 μm, and a sliding speed of 100 μm/second.

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Inventors:

TSURU MASAHIRO
YAMAMOTO SHINTARO
KATSURA SHO
ITO HIROTAKA
KOYAMA TAKAYUKI

Application Number:

PCT/JP2023/032243

Publication Date:

March 28, 2024

Filing Date:

September 04, 2023

Export Citation:

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Assignee:

KOBE STEEL LTD (JP)

International Classes:

C25D7/00; C25D3/46; C25D3/64; C25D5/10; C25D5/12; C25D5/48; C25D15/02; H01R13/03

Foreign References:

JP2021119257A	2021-08-12
US20210254231A1	2021-08-19
JPH10223290A	1998-08-21
JP2013129902A	2013-07-04
JP2014118632A	2014-06-30
JP2022154356A	2022-10-13

Attorney, Agent or Firm:

YAMAO, Norihito (JP)

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