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

1997-08-12

1999-03-16

Mai, Ngoclan

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148432, 419 25, C22F 108

Patent

active

058824480

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 anxiliary constituent.

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patent: 5045281 (1991-09-01), Okutomi et al.
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patent: 5306465 (1994-04-01), Caron et al.
patent: 5500499 (1996-03-01), Seki et al.
Patent Abstracts of Japan, vol. 014, No. 012 (E-871), Jan. 11, 1989.

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