Continuous electroforming of non-ferrous metal strip - which is drawn off rotating cathodes in electrolysis cell

摘要

The strip is made by electrodeposition onto >=1 cylindrical cathode able to rotate freely in a tank contg. an electrolyte and stationary anodes. The deposited layer of metal is drawn continuously off the cathode and along a straight line between the anodes in the tank to increase the thickness of the electroformed strip by further electrodeposition; and the thickness of the strip produced by each cathode is independently controlled. The pref. plant consists of a tank contg. stationary anodes and cathodes which rotate on their vertical axes and produce a strip with its width in a vertical plane. The thickness of the strip is controlled by varying its speed of travel through the bath, and/or by altering the current density. Used for the mfr. of Cu, Zn, etc., and also of metals where rolling is difficult or impossible. The metals trip does not need to be deposited onto a substrate foil; and strips with different thicknesses can be produced simultaneously.