METHOD OF PREPARATION OF THE SURFACE OF STAINLESS STEEL PRODUCTS TO PLATED copper plating

摘要

A method of surface preparation of articles made of stainless steel prior electroplated copper plating comprises washing the product in water, degreasing, cathodic treatment in an aqueous solution of sulfuric or hydrochloric acid, characterized in that the cathodic surface treatment is carried out in aqueous dilute solutions of sulfuric acid with a concentration of 4,9-49 0 g / l or hydrochloric acid at a concentration 3,65-36,0 g / l, containing 1-4 g / l NiSO · 7HO or NiCl · 6HO at a current density of 2.5-10.0 a / SCM for 5 -10 min.