Sinter contact material for low voltage switching apparatus of t

Details Sinter contact material for low voltage switching apparatus of t Sinter contact material for low voltage switching apparatus of t

1989-11-17

1990-12-25

Dixon, Jr., William R.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 22, 75234, 252520, B22F 100

Patent

active

049801252

ABSTRACT:
Sinter materials having the constitution AgSnO.sub.2 Bi.sub.2 O.sub.3 CuO produced from an intraoxidized alloy powder have added thereto bismuth zirconate and/or bismuth titanate in parts by weight of preferably between 0.1 and 5%. For the production of these materials, bismuth zirconate and/or bismuth titanate is added as a separate powder to the intraoxidized alloy powder of AgSnO.sub.2 Bi.sub.2 O.sub.3 CuO. With such a contact material, the excess temperature behavior in motor contactors is significantly improved.

REFERENCES:
patent: 4141727 (1979-02-01), Shida et al.
patent: 4565590 (1986-01-01), Grosse et al.
patent: 4609525 (1986-09-01), Schreiner
patent: 4681702 (1987-07-01), Schreiner et al.
patent: 4764227 (1988-08-01), Rothkegel et al.
patent: 4855104 (1989-08-01), Rothkegel et al.

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