METHOD AND DEVICE FOR THE CONTINUOUS electrodeposition AT HIGH CURRENT DENSITY OF A LAYER OF AN ALLOY BASED ON ZINC.

摘要

Process for continuous electrolytic deposit with a high current density of a layer of a zinc-based alloy on an article which has a shape of a band, wire, bar, tube and the like, wherein said article is moved inside and electrolysis cell past an anode through an electrolyte containing zinc sulfate, while maintaining in this electrolyte a pH lower than 2, a temperature between 40 DEG C and 70 DEG C and a zinc sulfate concentration of 0.2 to 2 mol/liter and an iron, nickel and/or cobalt sulfate concentration of 0.3 to 2 mol/liter according to the kind of coating layer to be produced.