METHOD FOR TREATING SURFACE OF METAL SUBSTRATES FOR IMPROVING EFFICIENCY OF OFFSHORE EQUIPMENT

摘要

The present invention relates to a method to treat surfaces of metal substrates for improving efficiency of an offshore equipment. The method comprises: (a) a step of forming a porous oxide film on a surface of an aluminum substrate; and (b) a step of coating a corrosion inhibitor on the surface of the aluminum substrate formed with the oxide film. According to the present invention, the method to treat the surfaces of the aluminum substrate has superior anti-fouling and anti-corrosion effects of the metal substrate compared to a conventional surface treatment method of coating only the corrosion inhibitor, by forming the porous oxide film on the surface of the aluminum substrate by a surface treatment, to allow a portion of the corrosion inhibitor to be absorbed to the porous oxide film.