Electrical contact and process for making the same

Details Electrical contact and process for making the same Electrical contact and process for making the same

1985-12-30

1986-11-11

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

200265, 200268, 252503, 252504, 252512, 252514, 252516, 252518, 419 18, 419 19, 419 21, 419 23, 419 28, 419 57, 419 58, 428552, 428565, 428929, B22F 310

Patent

active

046222693

ABSTRACT:
An electrical contact formed of a mixture of finely divided electrically conductive metal doped with graphite or cadmium oxide. A thin coating of the electrically conductive metal is disposed upon the side of the contact which is adapted to be welded or brazed to an electrically conductive support. The electrical contact is made by mixing the finely divided cadmium oxide and pressing the mixture into a desired shape. A slurry of conductive metal is then sprayed on one side of the contact. After coating, the contact is sintered at a temperature less than the melting point of the electrically conductive material, whereby the contact is formed and the coating is firmly attached to it. The invention is particularly useful with silver or copper-based electrical contacts.

REFERENCES:
patent: 3385677 (1968-05-01), Schreiner et al.
patent: 3969112 (1976-07-01), Kim et al.
patent: 4088480 (1978-05-01), Kim et al.
patent: 4092157 (1978-05-01), Reid et al.
patent: 4137076 (1979-01-01), Hoyer et al.
patent: 4217139 (1980-08-01), Kim et al.

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