ELECTRODE MATERIAL FOR VACUUM CIRCUIT BREAKER AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2010/050352

A1

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.

NODA, Yasushi (1-1 Kokubu-cho 1-chome, Hitachi-sh, Ibaraki 01, 〒3168501, JP)
野田泰司 (〒01 茨城県日立市国分町一丁目１番１号株式会社日本ＡＥパワーシステムズ国分事業所内 Ibaraki, 〒3168501, JP)

JP2009/067590

May 06, 2010

October 02, 2009

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JAPAN AE POWER SYSTEMS CORPORATION (8-3 Nishi-Shinbashi 3-chome, Minato-ku Tokyo, 03, 〒1050003, JP)
株式会社日本ＡＥパワーシステムズ (〒03 東京都港区西新橋三丁目８番３号 Tokyo, 〒1050003, JP)
NODA, Yasushi (1-1 Kokubu-cho 1-chome, Hitachi-sh, Ibaraki 01, 〒3168501, JP)

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

TAKADA, Yukihiko (2-6 O-machi 1-chome, Mito-shi Ibaraki, 62, 〒3100062, JP)

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