Contact for a vacuum interrupter

Details Contact for a vacuum interrupter Contact for a vacuum interrupter

1991-06-06

1993-09-21

Roy, Upendra

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

200265, 200266, 420495, 420497, H01H 100

Patent

active

052465128

ABSTRACT:
The present invention relates to a contact for a vacuum interrupter obtained by processing a contact-forming material comprising from 20% to 60% by weight of Cr, Bi in an amount of from 0.05% to 1.0% by weight of the total amount of Cu and Bi, and the balance substantially Cu into the shape of a contact, and thereafter subjecting the processed material to vacuum heat treatment. The contact for the vacuum interrupter has both excellent anti-welding characteristics and excellent voltage withstanding characteristics.

REFERENCES:
patent: 3359623 (1967-12-01), Gwynn, Jr.
patent: 4048117 (1977-09-01), Emmerich
patent: 4499009 (1985-02-01), Yamanaka et al.
patent: 4686338 (1987-08-01), Kashwagi et al.
patent: 4743718 (1988-05-01), Santilli
patent: 4780582 (1988-10-01), Haessler et al.
Japanese Patent Publ. No. 88728/1990 (Abstract only) Mar. 1990.
Japanese Patent Publ. No. 96621/1986 (including Abstract) May 1986.

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