Contact material for vacuum valve and method of manufacturing th

Details Contact material for vacuum valve and method of manufacturing th Contact material for vacuum valve and method of manufacturing th

1995-02-21

1997-12-16

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75245, 252513, 252514, 200264, 200265, 419 26, C22C 3000

Patent

active

056980086

ABSTRACT:
A contact material for a vacuum valve including, a conductive constituent including at least copper, an arc-proof constituent including at least chromium and an auxiliary constituent including at least one selected from the group consisting of tungsten, molybdenum, tantalum and niobium. The contact material is manufactured by quench solidification of a composite body of the conductive constituent, the arc-proof constituent and the auxiliary constituent.

REFERENCES:
patent: 4777335 (1988-10-01), Okutomi et al.
patent: 4830821 (1989-05-01), Okutomi et al.
patent: 5045281 (1991-09-01), Okutomi et al.
patent: 5500499 (1996-03-01), Seki et al.

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