Method of and apparatus for electrochemically processing metallic surfaces

Abstract From the Canadian patent

A method of electrochemically processing metallic surfaces of workpieces arranged in a contact-free manner with regard to the cathode and anode of an electrolytic cell by means of an electrolyte. For the purpose of transferring an electric charge onto the workpiece surface to be processed, the electrolyte contains suspended electrically conductive bodies. These electrically conductive bodies are charged in a first chamber of the cell that contains the electrode the polarity of which determines the processing (oxidative or reductive treatment) of the workpiece surface. A shielding diaphragm or ion exchange membrane prevents the electrically conductive bodies from discharging on the …