Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Simultaneous deplating and plating
Patent
1996-09-03
1997-12-23
Gorgos, Kathryn L.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Simultaneous deplating and plating
205102, 205131, 205148, 205219, C25D 508
Patent
active
057003661
ABSTRACT:
An electrolytic process for simultaneously cleaning and metal-coating the surface of a workpiece of an electrically conducting material, which process comprises: i) providing an electrolytic cell with a cathode comprising the surface of the workpiece and an anode comprising the metal for metal-coating of the surface of the workpiece; ii) introducing an electrolyte into the zone created between the anode and the cathode by causing it to flow under pressure through at least one opening in the anode and thereby impinge on the cathode; and iii) applying a voltage between the anode and the cathode and operating in a regime in which the electrical current decreases or remains substantially constant with increase in the voltage applied between the anode and the cathode, and in a regime in which discrete gas bubbles are present on the surface of the workpiece during treatment.
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Metal Finishing Guidebook and Directory for 1975, Metals and Plastics Publications, Inc., Hackensack, N.J., 1975, p., 67. No month available.
A.V. Timoshenko et al., "The Effect of Silicates in Sodium-Hydroxide Solution . . . by Microarc Oxidation" in Protection of Metals, vol. 30, No. 2, 1944, pp. 175-180. No month available.
Riabkov Vitalij Makrovich
Steblianko Valerij Leontievich
Gorgos Kathryn L.
Leader William T.
Metal Technology, Inc.
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