VERFAHREN ZUM PASSIVIEREN VON METALLISCHEN OBERFLÄCHEN MIT SÄUREGRUPPEN AUFWEISENDEN POLYMEREN

摘要

Process for the passivation of metallic surfaces by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and Zn, Ca, Mg or Al ions, said process being in particular a continuous process for the passivation of strip metals.