ã€China Aluminum Industry Network】The anti-corrosion paint coating method for aluminum alloy parts for power stations is as follows:
1. The aluminum alloy pieces are immersed in a degreasing solution prepared with a surfactant and water for degreasing treatment for 1 to 1.5 hours;
2. Then immersed in a clean water bath for 3-5 minutes; after cleaning, immersed in a passivation solution prepared with oxalic acid, glacial acetic acid and water for surface passivation treatment for 1.5-2 hours;
3. Then immersed in another clean water tank for 3 to 5 minutes; after cleaning, remove and spray dry anti-corrosion paint;
4 spray paint into the drying room, access to the temperature of 90-100 °C drying 1-1.5 hours;
5. Take out after drying, polish and clean the surface of aluminum alloy pieces, that is, finish the painting of anti-corrosion paint of aluminum alloy pieces.
Accelerate the degreasing process and surface passivation process by using the method of bottom venting of the treatment tank to increase the production efficiency by more than 30%; uniformly dry the coating with a temperature of 90-100°C to ensure that the coating is always strong in the drying process of the coating. Focus on effectively improving the life of the coating.
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