METHOD FOR TREATING THE SURFACE OF A METAL

摘要

The present invention relates to a method for treating the surface of a metal, and more particularly, to an electrochemical method for treating the surface of a metal. The method for treating the surface of a metal according to the present invention comprises the steps of: preparing an electrolyte including vanadium salt and a complexing agent; immersing a metal in the electrolyte; and electrochemically treating the surface of the metal using the metal as a positive electrode. By using a surface treatment method of adding a vanadium oxide to an oxide film, the present invention obtains excellent effects of improving the corrosion resistance of the metal and a black coloring.