Process for improving the corrosion resistance of steel objects comprises galvanizing the objects, coating with a chromium and then a chromate layer, treating with a reducing agent and applying a polymer layer to the surfaces

摘要

Process for improving the corrosion resistance of steel objects comprises galvanizing the objects; coating with a chromium and then a chromate layer in a chromium plating electrolyte; removing the objects; treating with a reducing agent and applying a polymer layer to the surfaces of the objects.