Method of making electrical contacts

Details Method of making electrical contacts Method of making electrical contacts

1986-02-28

1987-10-20

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

200260, H01R 4316

Patent

active

047004754

ABSTRACT:
Electrical contacts of silver-cadmium alloy or other silver alloys suitable for I/O in which the cadmium is oxidized adjacent one side only are made providing a tube of silver-cadmium alloy, coating the inner wall with a layer of parting compound or inserting in the tube a sheet separator coated on each face with a layer of parting compound, compressing the tube to flatten it, heating the flattened tube in an oxygen-containing atmosphere to oxidize the cadmium content adjacent the outer face of the tube and to leave it unoxidized the cadmium content adjacent the inner face, and removing the layer of parting compound and cutting the wall of the flattened tube into individual contacts.

REFERENCES:
patent: 3258829 (1966-07-01), Gwyn Jr.
patent: 3596030 (1971-07-01), Shibata
patent: 3688067 (1972-08-01), Shibata
patent: 3807994 (1974-04-01), Jost
patent: 3814640 (1974-06-01), Shibata
patent: 4112197 (1978-09-01), Metz

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