Sealing and densifying chrome plated metal parts

Details Sealing and densifying chrome plated metal parts Sealing and densifying chrome plated metal parts

1975-10-23

1976-10-12

Weiffenbach, Cameron K.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427226, 427372R, 427380, 427405, 427419A, B05D 302

Patent

active

039859169

ABSTRACT:
Porous chrome plated surfaces are densified by treating the surface with a chromic acid solution and heating the treated surface to convert the chromic acid to chromic oxide. Repeated treating and conversion steps may be used to completely fill the pores and cracks.

REFERENCES:
patent: 3585260 (1971-06-01), Holker et al.
patent: 3725117 (1973-04-01), Caruso
patent: 3734767 (1973-05-01), Church et al.

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