Process and plant for an electrolytic treatment of a metal strip

Details Process and plant for an electrolytic treatment of a metal strip Process and plant for an electrolytic treatment of a metal strip

1986-12-31

1988-08-09

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204 28, 2041415, 204206, 204224R, C25F 104

Patent

active

047625996

ABSTRACT:
A plant for electrolytic surface treatment and especially for descaling of a metal strip (2), comprising for the treatment of the same single face of the strip, at least two electrode-rolls (4) which are entirely immersed in a bath of electrolytic liquid and over which the strip passes. The rolls are covered with an insulating coating consisting of a series of spaced bearing rings centered in planes perpendicular to the axis of the roll and between which are provided annular treatment spaces, the bottom of which consists of a conductive wall, and the bearing rings are offset axially from one roll to another so that, in the direction of travel of the strip, the regions treated between the bearing rings of one roll correspond to the bearing regions on the rings of the succeeding roll, and vice versa. The plant can be applied, for example, to the cleaning, pickling or dechroming of a strip travelling at a high speed.

REFERENCES:
patent: 3374159 (1968-03-01), Poole
patent: 3420760 (1969-01-01), Freedman
patent: 4441975 (1984-04-01), Carter et al.
F. A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 78-79.

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