Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Utilizing brush or absorbent applicator
Patent
1992-07-16
1994-01-11
Tufariello, T. M.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Utilizing brush or absorbent applicator
C25D 506
Patent
active
052777855
ABSTRACT:
Thick layers of hard dense chromium coatings are formed on metal substrates by an electrolytic brush plating operation in which a lead-tin electrode having a porous polypropylene felt topped by an polypropylene molded brush element is maintained during coating continuously over the area to be electrolytically coated. The correct current density and flow of electrolytic coating solution as well as relative movement between the anode and brush element and the work piece are closely controlled to enable the hard chromium coating to be produced.
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