Contact material for vacuum valve

Details Contact material for vacuum valve Contact material for vacuum valve

1998-03-06

1999-10-26

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75248, 200265, 200266, 419 38, C22C 104

Patent

active

059720689

ABSTRACT:
The vacuum valve contact material of the present invention is manufactured by a step of mixing an anti-arc constituent powder and a conductive constituent powder, a step of forming, and a step of sintering the formed body below the melting point of the conductive constituent, and has improved arc interruption performance.

REFERENCES:
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patent: 4870231 (1989-09-01), Naya et al.
patent: 4917722 (1990-04-01), Kuniya et al.
patent: 4927989 (1990-05-01), Naya et al.
patent: 4954170 (1990-09-01), Fey et al.
patent: 5019156 (1991-05-01), Naya et al.
patent: 5246512 (1993-09-01), Seki et al.
patent: 5354352 (1994-10-01), Seki et al.
patent: 5403543 (1995-04-01), Okutomi et al.

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