SURFACE-TREATED ALUMINUM MATERIAL, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR REDUCING CRACK IN ANODIZED COATING IN SURFACE-TREATED ALUMINUM MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a surface-treated aluminum material provided with an anodized coating having excellent thermal crack resistance, and to provide a surface-treated aluminum material provided with an anodized coating having excellent thermal crack resistance.;SOLUTION: The surface-treated aluminum material is obtained by subjecting an aluminum material 30 composed of aluminum or an aluminum alloy to heat treatment at ≥300°C and thereafter forming an anodized coating on the surface of the aluminum material. In the method for manufacturing the surface-treated aluminum material, an aluminum material composed of aluminum or an aluminum alloy is subjected to heat treatment at ≥300°C, and thereafter, an anodized coating is formed on the surface of the aluminum material.;COPYRIGHT: (C)2007,JPO&INPIT