Title:
SURFACE-COATED MATERIAL FOR ELECTRICAL CONTACTS, AND ELECTRICAL CONTACT, SWITCH AND CONNECTOR TERMINAL EACH USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/234015
Kind Code:
A1
Abstract:
The present invention provides: a surface-coated material for electrical contacts, the surface-coated material exhibiting excellent bending workability, while having a surface that is provided with a silver-containing layer which is capable of suppressing adhesion and thereby enhancing the wear resistance under the conditions that are in line with the actual usage environment; and an electrical contact, a switch and a connector terminal, each of which uses this surface-coated material for electrical contacts. A surface-coated material 1 for electrical contacts according to the present invention comprises a conductive base material 2 and a silver-containing layer 3 that covers at least one surface of the conductive base material 2. With respect to the silver-containing layer 3, if h1 is a first total peak intensity which is the sum of the peak intensity assigned to the Ag (111) plane and the peak intensity assigned to a plane that is parallel to the Ag (111) plane as determined from the X-ray diffraction chart, and h2 is a second total peak intensity which is the sum of the other peak intensities, that is the value obtained by subtracting the first total peak intensity h1 from the sum of all detected peak intensities, the ratio (h1/h2) of the first total peak intensity (h1) to the second total peak intensity (h2) is within the range of 1.0 to 3.0.
Inventors:
TORII YOSHITANE (JP)
KUZUHARA SOKI (JP)
SUGAHARA CHIKAHITO (JP)
IKEGAI KEISUKE (JP)
KAGITA HIROTOSHI (JP)
KUZUHARA SOKI (JP)
SUGAHARA CHIKAHITO (JP)
IKEGAI KEISUKE (JP)
KAGITA HIROTOSHI (JP)
Application Number:
PCT/JP2023/018332
Publication Date:
December 07, 2023
Filing Date:
May 16, 2023
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA PREC ENGINEERING CO LTD (JP)
FURUKAWA PREC ENGINEERING CO LTD (JP)
International Classes:
C25D7/00; C25D5/10; H01H1/04; H01R13/03; B21B1/36
Domestic Patent References:
| WO2013137121A1 | 2013-09-19 | |||
| WO2011099574A1 | 2011-08-18 |
Foreign References:
| JP2015110833A | 2015-06-18 | |||
| JPS4920127B1 | 1974-05-22 |
Attorney, Agent or Firm:
KURUMA Kiyoshi et al. (JP)
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