硫酸-グリセリン電解浴によるAlの陽極酸化
1965 年 16 巻 1 号 p. 3-6
詳細
1965 年 16 巻 1 号 p. 3-6
The anodic oxidation of aluminium was carried out in the electrolyte sulphuric acid to which was added glycerine. The product obtained was excellent in the thickness of film, hardness, and corrosion resistance.
The coating ratio increased with the concentration of glycerine until 5%, and gradually decreased above 5%.
The reason of the increase of the ratio should be assumed as follows: the temperature rise due to the heat generated during electrolysis may be prevented by the presence of glycerine, which would reduce the dissolution of coating into the electrolyte.
