Title:
ELECTRICAL CONTACT MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/162107
Kind Code:
A1
Abstract:
The disclosed electrical contact material is highly resistant to welding and wear and exhibits excellent temperature performance. Said electrical contact material (31) contains, by mass, more than 30% and no more than 55% tungsten carbide and between 2% and 5% graphite, with the remainder containing silver and unavoidable impurities. Said electrical contact material has a relative density of at least 98.0%, an oxygen content of no more than 450 ppm, a conductivity of at least 45% IACS, and a transverse rupture strength of at least 350 MPa.
Inventors:
HATAKEYAMA TAKASHI (JP)
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
SUZUKI YASUHIKO (JP)
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
SUZUKI YASUHIKO (JP)
Application Number:
PCT/JP2011/063200
Publication Date:
December 29, 2011
Filing Date:
June 09, 2011
Export Citation:
Assignee:
ALMT CORP (JP)
HATAKEYAMA TAKASHI (JP)
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
SUZUKI YASUHIKO (JP)
HATAKEYAMA TAKASHI (JP)
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
SUZUKI YASUHIKO (JP)
International Classes:
C22C32/00; C22C5/06; C22C29/08; H01H1/021; H01H1/023; C22C1/05
Foreign References:
| JPS52147768A | 1977-12-08 | |||
| JPH07192565A | 1995-07-28 | |||
| JPS5811754A | 1983-01-22 | |||
| JPS5811753A | 1983-01-22 | |||
| JPS5811754A | 1983-01-22 |
Other References:
See also references of EP 2586883A4
Attorney, Agent or Firm:
KODA, Kazuyuki (JP)
Koda Kazuyuki (JP)
Koda Kazuyuki (JP)
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Claims:
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