Abstract: In a device, rod-shaped objects 10 (rods of various length and diameter) are electrochemically partially processed in dip plants (galvanized, pickled). Stationary tubular electrodes 30, into which the rods 10 are centrically entered, are provided in the plating tank of the plant. The surfaces to be plated are each axially limited by an adjustable membrane carrier 26, in which elastic shielding membranes 9 for delimiting the field lines are arranged. The membranes 9 are held by membrane holders 5. The membrane holders 5 are arranged in a cage where they are free to move radially and are provided with inner centering springs 7 and with outer centering springs 19 so that the membrane holder 5 and the membranes 9 are held in such a way as to be self-centering.

Abstract: A method and a device are described for the electrochemical treatment of elongate articles, preferably bars. The article 10 is clamped at one end by means of a clamp 3 and is introduced into a hollow chamber that has a longitudinal axis, in an electrode 30, arranged in a dip bath with a periphery parallel to the axis, in as concentrically axial a manner as possible and is thereby directed through at least one axially displaceable, perforated screening mask 23,26 so that part of the area not to be treated electrochemically is screened from the electrode. The article and electrode are connected to a current source. A container 14 for treatment liquid has at least one electrode 30 therein, the electrode having a hollow chamber with a longitudinal axis and a periphery parallel to the axis. The article is introduced into the hollow chamber. At lease one screening mask 23,26 is axially adjustable within the hollow chamber and has openings for introducing the article.