Talk about what problems should be paid attention to after aluminum alloy oxidation

Oxidation of aluminum alloy is a common surface treatment method for aluminum alloy products. Among many processing methods, oxidation is a way to save time and effort and cost. Of course, oxidized aluminum alloy products have high corrosion resistance and are relatively strong in terms of resistance to environmental changes.

The high quality surface effect is loved by most customers. However, post-processing is also the key to product quality. Precautions after oxidation of aluminum alloy are as follows:

(1) Hot water cleaning. After the aluminum alloy is oxidized, the purpose of hot water washing is to age the film. However, water temperature and time should be strictly controlled. If the water temperature is too high, the film layer will become thinner and the color will become lighter. Similar problems can occur if the processing time is too long. The appropriate temperature and time are: the temperature is 40~50℃ for 0.5 ~ 1min.

(2) Drying. It is best to dry naturally. Hot water fills a large number of workpieces on the shelf, so that after the oxidation of the aluminum alloy, the free water on the working surface flows directly down. Water droplets flowing to the lower corner are sucked away with a towel, and the color of the film dried in this way is not affected and appears natural.

(3) Aging. The aging method can be determined according to climatic conditions. Sunny summer can be exposed to the sun, rainy days or winter can be baked in the oven. The process conditions are: the temperature is 40~50℃ and the time is 10 ~ 15min.

(4) Maintenance of unqualified parts. Unqualified aluminum oxide parts should be dried and selected before the aging process. Due to drying, the film layer is difficult to remove after aging, which affects the roughness of the workpiece surface.