Contact for vacuum interrupter

Details Contact for vacuum interrupter Contact for vacuum interrupter

1979-05-21

1981-11-10

Hunt, Brooks H.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428567, 428568, 75248, B22F 700

Patent

active

042998891

ABSTRACT:
A contact for a vacuum interrupter has excellent characteristics of high withstand voltage, large current durability and low chopping current and is prepared by infiltrating copper into a skeleton obtained by sintering a specific tungsten powder having an average diameter of less than 1 .mu.m.
The skeleton is preferably prepared by a vacuum sintering process and the copper is infiltrating into the skeleton in hydrogen atmosphere or in vacuum.

REFERENCES:
patent: 2034550 (1936-03-01), Adams
patent: 2391456 (1945-12-01), Hansel
patent: 3153163 (1964-10-01), Foldes et al.
patent: 3438753 (1969-04-01), Kenney et al.
patent: 3489530 (1970-01-01), Schreiner

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