Method for manufacturing ultra-hydrophilic thin film coated metal product, and ultra-hydrophilic thin film coated metal product

Abstract

The present invention discloses a method for manufacturing an ultra-hydrophilic thin film coated metal product, and an ultra-hydrophilic thin film coated metal product. In order to easily produce an air conditioning metal material having excellent hydrophilic and aging properties on an industrial production scale, an anticorrosive thin film is selectively formed on both surfaces of a metal substrate sheet, and a ultra-hydrophilic T—O—(C)—(H) group compound thin film is coated on both surfaces on which the anticorrosive thin film has been or has not been formed, and mechanically processed into a target shape.

1 . A metal product, on which a hydrophilic Ti—O—(C)—(H) group compound thin film containing Ti and O, and further containing a remainders comprising C and/or H and an unavoidable impurities is coated. 
   
   
       2 . The metal product of  claim 1 , wherein the Ti—O—(C)—(H) group compound thin film contains 15 to 22 atomic % of Ti and 45 to 65 atomic % of O. 
   
   
       3 . The metal product of  claim 1 , wherein the Ti—O—(C)—(H) group compound thin film contains 20 to 25 atomic % of C. 
   
   
       4 . The metal product of  claim 1 , wherein the Ti—O—(C)—(H) group compound thin film contains 20 to 25 atomic % of H. 
   
   
       5 . The metal product of  claim 1 , wherein the thickness of the thin film ranges 1 to 100 nm. 
   
   
       6 . The metal product of  claim 1 , wherein the thin film has an amorphous micro-structure. 
   
   
       7 . The metal product of  claim 1 , wherein the metal product is an aluminum sheet. 
   
   
       8 . The metal product of  claim 7 , wherein the thin film coated aluminum sheet is mechanically machined into a fin for a heat exchanger.