Method for electrocoating conductive articles

Details Method for electrocoating conductive articles Method for electrocoating conductive articles

1974-12-13

1976-03-23

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1304

Patent

active

039459012

ABSTRACT:
A method is provided for obtaining the deposition of a protective electrocoating film onto the surface of electrically conductive, magnetically-attractable metal articles. With the method, a multitude of various articles, e.g., screws, clips, bolts, nails and the like, which may be in mixture, can be readily and efficiently electrocoated in batch or continuous operation. The method provides for establishing a magnetic field in close proximity to a coating bath, with the field having sufficient magnetic strength to affect the location of coated parts in at least a zone of the coating bath. The magnetic field cooperates with an assembly that is rotatable, e.g., a drum member. The means for rotation has a face element at least partly immersed in the bath. In rotation, articles are moved within the bath while they are under the influence of the magnetic field.

REFERENCES:
patent: 1168281 (1916-01-01), Buch
patent: 3575832 (1971-04-01), Johnson

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