| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface treatment method for an aluminum material by which rolling impressions, edxtrusion impressions, or the like, on formation of a stock are eliminated, and further, surface luster and color tones which are enough in uniformity and reproducibility, and controlled over wide ranges can be imparted thereto. SOLUTION: The surface treatment method for the aluminum material consisting of aluminum or an aluminum allow includes a first stage where anodic oxidation is performed in an aqueous solution containing a polybasic acid and/or a salt thereof to form an anodic oxide film on the surface of the aluminum material, and a second stage anode electrolysis is performed in an aqueous solution containing monobasic acid and/or a salt thereof.
|
