Aluminum alloy anodizing treatment method
A technology of anodic oxidation and treatment method, which is applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc. It can solve the problems of low oxidation film formation efficiency, uneven protective layer, weak corrosion resistance, etc.
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Embodiment 1
[0029] A method for aluminum alloy anodic oxidation, comprising the following steps in sequence:
[0030] 1) Polishing: Put the aluminum alloy to be polished in the main tank with a temperature of 90°C and a volume ratio of sulfuric acid and phosphoric acid of 4:1 for polishing. Cool in an auxiliary tank with a volume ratio of sulfuric acid and phosphoric acid of 4:1, and the cooling time is 0.5h. After cooling, place the metal in a recovery tank filled with clean water to recover and treat the residual liquid on the metal surface;
[0031] 2) Degreasing: Put the polished aluminum alloy in an ultrasonic device equipped with an alkaline sodium hydroxide solution at a temperature of 45°C, and improve the degreasing effect of the sodium hydroxide solution on the aluminum alloy by means of vibration. The sodium mass concentration is 90g / L, and the oil removal time is 5min;
[0032] 3) Cleaning: The degreased aluminum alloy is fully rinsed with deionized water with a flow rate of ...
Embodiment 2
[0040] A treatment method for aluminum alloy anodic oxidation, comprising the following steps in sequence:
[0041] 1) Polishing: Put the aluminum alloy to be polished in the main tank with a temperature of 90°C and a volume ratio of sulfuric acid and phosphoric acid of 4:1 for polishing. Cool in an auxiliary tank with a volume ratio of sulfuric acid and phosphoric acid of 4:1, and the cooling time is 0.5h. After cooling, place the metal in a recovery tank filled with clean water to recover and treat the residual liquid on the metal surface;
[0042] 2) Degreasing: Put the polished aluminum alloy in an ultrasonic device equipped with an alkaline sodium hydroxide solution at a temperature of 45°C, and improve the degreasing effect of the sodium hydroxide solution on the aluminum alloy by means of vibration. The sodium mass concentration is 90g / L, and the oil removal time is 5min;
[0043] 3) Cleaning: The degreased aluminum alloy is fully rinsed with deionized water with a flo...
Embodiment 3
[0055] A treatment method for aluminum alloy anodic oxidation, comprising the following steps in sequence:
[0056] 1) Polishing: Put the aluminum alloy to be polished in the main tank with a temperature of 90°C and a volume ratio of sulfuric acid and phosphoric acid of 4:1 for polishing. Cool in an auxiliary tank with a volume ratio of sulfuric acid and phosphoric acid of 4:1, and the cooling time is 0.5h. After cooling, place the metal in a recovery tank filled with clean water to recover and treat the residual liquid on the metal surface;
[0057] 2) Degreasing: Put the polished aluminum alloy in an ultrasonic device equipped with an alkaline sodium hydroxide solution at a temperature of 45°C, and improve the degreasing effect of the sodium hydroxide solution on the aluminum alloy by means of vibration. The sodium mass concentration is 90g / L, and the oil removal time is 5min;
[0058] 3) Cleaning: The degreased aluminum alloy is fully rinsed with deionized water with a flo...
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