Low voltage switching apparatus sinter contact material

Details Low voltage switching apparatus sinter contact material Low voltage switching apparatus sinter contact material

1989-11-17

1990-08-14

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

252514, 419 21, 419 22, C22L 2912

Patent

active

049484249

ABSTRACT:
Sinter contact materials produced from an intraoxidized alloy powder having the constitution AgSnO.sub.2 Bi.sub.2 O.sub.3 CuO have added thereto at least zirconium oxide and optionally additionally bismuth oxide in parts by weight of preferably between 0.1 and 5%. For the production of these materials, zirconium oxide power and optionally additionally bismuth oxide powder is added to the intraoxidized alloy powder AgSnO.sub.2 Bi.sub.2 O.sub.3 CuO. With such a contact material, the excess temperature behavior in motor contactors is improved.

REFERENCES:
patent: 3963449 (1976-06-01), Seki et al.
patent: 4141727 (1979-02-01), Shida et al.
patent: 4294616 (1981-10-01), Kim et al.
patent: 4681702 (1987-06-01), Schreirer et al.
patent: 4764227 (1988-08-01), Rothkegel et al.

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