Method of electroplating very thin metal parts

Details Method of electroplating very thin metal parts Method of electroplating very thin metal parts

1982-03-01

1983-03-29

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

C25D 500

Patent

active

043782744

ABSTRACT:
A method of plating simultaneously a large number of non-flat metal parts of very thin, easily bent material is disclosed. The parts of this type such as geophone springs are placed in a plating barrel in loose condition, and the barrel is submerged at least halfway into the plating solution. After a short period of time, rotation of the barrel is begun and allowed to continue for awhile before the electroplating current is turned on. The tumbling action imported to the geophone springs, which causes them to move into and out of electrical contact with each other and with the cathodes in the barrel, extends the time required to plate these very thin members with the desired coating of metal, usually silver or gold, thereby decreasing the criticalness of the length of time the plating current is on, thereby increasing the uniformity of the coatings obtained and reducing the number of rejects.

REFERENCES:
patent: 3803007 (1974-04-01), Jessup
patent: 4337135 (1982-06-01), Quinton
Metal Finishing Guidebook & Directory, vol. 77, No. 13, Jan. 1979, pp. 398-414.

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