ELECTRODE MATERIAL FOR VACUUM CIRCUIT BREAKER AND METHOD FOR PRODUCING SAME

Title:

ELECTRODE MATERIAL FOR VACUUM CIRCUIT BREAKER AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2010/050352

Kind Code:

A1

Abstract:

An electrode material for a vacuum circuit breaker, which can further improve electrical characteristics required for a vacuum circuit breaker. A method for producing the electrode material for a vacuum circuit breaker. An atomized Cu-Cr alloy powder, 20-30% by weight of a thermite Cr powder and 5% by weight of an electrolytic Cu powder are mixed and sintered in the solid phase, thereby obtaining an electrode material for a vacuum circuit breaker, said material containing a solid phase sintered body having a total Cr content of 30-50%. When the electrode material for a vacuum circuit breaker is produced, the powders are mixed, then the powder mixture is compression molded into a compression molded compact, and then the compression molded compact is sintered in the solid phase in a non-oxidizing atmosphere at a temperature not higher than the melting point of Cu, thereby obtaining a solid phase sintered body.

Inventors:

NODA YASUSHI (JP)
SATO HIROMASA (JP)

Application Number:

PCT/JP2009/067590

Publication Date:

May 06, 2010

Filing Date:

October 02, 2009

Export Citation:

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Assignee:

JAPAN AE POWER SYSTEMS CORP (JP)
NODA YASUSHI (JP)
SATO HIROMASA (JP)

International Classes:

H01H33/66; B22F1/00; B22F3/15; B22F5/00; C22C1/04; C22C9/00; H01H1/025; H01H11/04

Foreign References:

JP2002080923A	2002-03-22
JPH05242772A	1993-09-21
JPH0495318A	1992-03-27

Other References: