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![](https://data.epo.org/publication-server/img/EPO_BL_WORD.jpg) |
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EP 0 604 856 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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15.03.1995 Bulletin 1995/11 |
(43) |
Date of publication A2: |
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06.07.1994 Bulletin 1994/27 |
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Date of filing: 17.12.1993 |
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International Patent Classification (IPC)5: H01H 1/02 |
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Designated Contracting States: |
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AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE |
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Priority: |
17.12.1992 JP 355082/92
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Applicants: |
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- SANNO CO., LTD.
Yokohama-shi,
Kanagawa Prefecture (JP)
- NIPPON METAL INDUSTRY CO.,LTD.
Shinjuku-ku
Tokyo (JP)
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Inventors: |
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- Saito, Hitoshi
Fujisawa-shi,
Kanagawa Prefecture (JP)
- Yamashita, Tadashi
Yokosuka-shi,
Kanagawa Prefecture (JP)
- Nakajima, Hiroo
Kawasaki-shi,
Kanagawa Prefecture (JP)
- Inoue, Shougo
Sagamihara-shi,
Kanagawa Prefecture (JP)
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(74) |
Representative: Fuchs, Luderschmidt & Partner
Patentanwälte |
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Postfach 46 60 65036 Wiesbaden 65036 Wiesbaden (DE) |
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(54) |
Contact material and manufacturing method of the same |
(57) It is an object of the present invention to provide contact materials and manufacturing
method of the same; said contact materials possess excellent characteristics in terms
of contact resistance, corrosion resistance, bending strength, spring property, and
ductility. On a band-shaped nickel-claded stainless steel substrate, there is either
partially or entirely plated, at least one type of metal selected from noble metals,
tin or tin-based alloys. Various evaluating tests including the contact resistance
measurements, salt spray tests, sulfur dioxide tests, mixed gas tests of sulfur dioxide
and sulfurized gas, and the bending strength tests are carried out on different samples
and the results evaluated which showed that the present materials avoid anti-corrosion
post-treatment after the press-forming process and exhibit excellent characteristics,
particularly suitable to application for intermediate current and intermediate voltage
regimes.