Contact material for vacuum circuit breaker

Details Contact material for vacuum circuit breaker Contact material for vacuum circuit breaker

1983-10-31

1985-05-14

Rutledge, L. Dewayne

Metal treatment

Stock

Copper base

148436, 148442, 420489, 420492, 420495, 420497, 420500, 420587, 420588, 200266, C22C 900, C22C 3002

Patent

active

045170339

ABSTRACT:
A contact material for a vacuum circuit breaker consists essentially of copper as the basic component, and, as the other components, 35% by weight or below of chromium and 50% by weight or below of tantalum, the total quantity of chromium and tantalum in said contact material being 10% by weight and above.

REFERENCES:
patent: 2218073 (1940-10-01), Schwarzkopf
patent: 2281691 (1942-05-01), Hensel et al.
patent: 4007039 (1977-02-01), Shapiro et al.
patent: 4008081 (1977-02-01), Hundstad

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