DEVICE AND METHOD OF APPLYING COATING ON CYLINDERS Russian patent published in 2017 - IPC C25D17/12 C25D7/04 

FIELD: chemistry.

SUBSTANCE: device contains a bath for electroplating, configured to store the electrolyte, chucks for holding a work cylinder at both ends in the longitudinal direction with the possibility of rotation and supply voltage on it and for immersion of the cylinder in the bath, and a pair of opposite insoluble electrodes that are installed vertically. The electrodes face both lateral surfaces of the cylinder in the bath and are configured to supply an electric current to them, the pair of electrodes being configured to closely approach both lateral surfaces of the cylinder at a predetermined distance therebetween. Each of the pair of electrodes has such a shape that, at least, the lower part of the electrode is curved toward the inside and has a comb-like plot, and both electrodes facing to each other with a shift so that the protrusions of the comb section of one of the pair of electrodes are arranged in the positions of the recesses between the protrusions of the comb section of another of the pair of electrodes, wherein each of the pair of electrodes is made with the possibility of rotation around its upper end, so that the distance from each electrode to the outer peripheral surface of the cylinder is adjustable.

EFFECT: increasing the service life of insoluble electrode.

6 cl, 2 ex, 8 dwg