Electrochemical polishing and pickling method and apparatus

Details Electrochemical polishing and pickling method and apparatus Electrochemical polishing and pickling method and apparatus

1987-04-24

1988-10-11

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041415, 204224M, 204237, 204269, 204271, C25F 102, C25F 316, C25D 1714

Patent

active

047769335

ABSTRACT:
It is provided in an electrochemical polishing and pickling method and apparatus for treating metal surfaces that an electrolyte stream (18) entering a casing (12) is divided into an anodic partial stream (20) and a cathodic partial stream (22). The anodic partial stream (20) flows past a dielectric wall (32) as well as the surface (10') to be polished or pickled, while the cathodic partial stream does not reach the surface (10') to be polished but instead is recycled directly into an electrolyte reservoir (30) after having passed the cathodes (24).

REFERENCES:
patent: 3546088 (1970-12-01), Barkman et al.
patent: 3637468 (1972-01-01), Icxi et al.
patent: 3779887 (1973-12-01), Gildone
patent: 4431501 (1984-02-01), Leppanen

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