Analysis of the Causes of Flowering on the Surface After Anodized Oxidation of Aluminum Profiles

[China Aluminum Industry Network] The main reasons for the appearance of aluminum foil after anodizing and dyeing are as follows: 1. Workpiece pre-treatment alkali wash is not thorough. 2. The temperature of the dyeing melt is too low. 3. The staining solution surface is oily. 4. The film is not retreat of the rework. 5. The oxide film is contaminated. 6. The washing after oxidation is not thorough enough and has not been cleaned. 7. The current density of the aluminum profile is too large during anodization. 8. Anodizing solution temperature is too low, the current density is too small. 9. Aluminum anodizing solution temperature is too high.