Method for electrolytic zinc coating of steel products intended for application of paint coatings, preferably polymeric coatings

摘要

the application concerns the method of zinc plating steel products intended to impose coatings.especially, polymer and protection from corrosion of zinc in zinc plating process naniesionej.the steel is successively odtu0142uszczaju0105cej chemically bath, bath trawiu0105cej, washing, bathing odtu0142uszczaju0105cej elektrochemicznie, washing, dekapowaniu, washing, washing aktywacyjnemu,elektrochemicznemu imposing coating zinc, washing odzyskowemu and next time.then, on the surface of zinc produces organic conversion layer by deposition on it by at least 5 seconds, aqueous solution or water and alcohol containing 0,1 to 10% diketonu of general formula, in which r is a group alkilowu0105 chain containing from 1 to 20 carbon atoms, or a niepodstawionu0105 the benzyl moiety.a group or niepodstawionu0105 alkenylowu0105, zalkalizowanego aqueous ammoniacal solution.solution water and alcohol is alcohol miscible with water, preferably isopropanol, methanol or ethanol and then after drying, inscribed or protective coating.advantageously the paint polymer.