PROCESS FOR THE PASSIVATION OF TINNED STAINLESS STEEL STRIP WITH A CHROME-FREE PASSIVATION FILM

摘要

Handle the tin plating stainless steel strip and chromium-free passivating film of passivation, it is characterised in that its step impregnates, optionally application cathode current, and the chromating bath for plating tin bar includes the salt of at least one transition metal, is selected from cobalt, titanium, zirconium and molybdenum. The present invention is further directed to the passivation for the plating tin bar being achieved in that, to plating tin bar chromium-free deactivation and coating coating, purposes and tinned food.