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Title:
METHOD OF PRODUCING A SHAPED PART FROM A SILVER-BASED CONTACT MATERIAL
Document Type and Number:
WIPO Patent Application WO1997027601
Kind Code:
A3
Abstract:
A contact material, a shaped article or contact piece and a process for producing a shaped article from a contact material based on silver, include forming a powder mixture from silver and a metal oxide, and metallurgically processing the powder to form the shaped article with the metal oxide being reduced to metal. Since metal oxide powders are obtainable with a very much smaller particle size than metal powders, it is possible to obtain a contact material with a mean particle size of the metal incorporated as an active component of less than 1 mu m. Such a contact material has particularly favorable switching properties as a result of the fine particle size.

Inventors:
HAUNER FRANZ (DE)
TIEFEL GUENTER (DE)
Application Number:
PCT/DE1997/000042
Publication Date:
October 09, 1997
Filing Date:
January 13, 1997
Export Citation:
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Assignee:
SIEMENS AG (DE)
HAUNER FRANZ (DE)
TIEFEL GUENTER (DE)
International Classes:
C22C1/04; H01H1/02; H01H1/023; H01H11/04; (IPC1-7): H01H1/02; H01H11/04
Domestic Patent References:
WO1992022079A11992-12-10
Foreign References:
GB1536847A1978-12-20
US3505065A1970-04-07
GB1524074A1978-09-06
DE4331913A11995-03-23
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