What Do We Need To Pay Attention To in The Process Of Aluminum Profile Oxidation?

1, material selection: the quality of the material, the composition of the different, will directly affect the quality of aluminum products after anodizing. For example, if there are bubbles, scratches, peeling, rough and other defects on the surface of aluminum, after anodic oxidation, all defects will still be revealed. The composition of the alloy also has a direct effect on the surface appearance after anodic oxidation.

2. Rinse with hot water. Hot water washing is intended to age the film layer. But the water temperature and time should be strictly controlled, the water temperature is too high, the film thin, the color becomes lighter. If the processing time is too long, the above similar problems will also occur. The appropriate temperature and time are: 40 ~ 50℃ for 0.5 ~ 1min;

3, dry: dry to natural drying is good, the hot water flushing highland barley of the workpiece slanted on the shelf, so that the free water on the surface of the work to the direction of the straight down. Flow to the lower corner of the water with a towel to absorb, according to this method of drying film color is not affected, appears natural.

4, aging: aging method can be determined according to climate conditions, there is sunlight in summer can be exposed in the sun, rainy days or winter available oven baking, the process conditions are: temperature 40 ~ 50℃ time 10 ~ 15min;

5. Repair of unqualified parts: Unqualified conductive oxide film parts should be picked out before drying and aging process, because it is difficult to remove the film layer after drying and aging and will affect the roughness of the workpiece surface. First of all, the unqualified workpiece is clamped on the fixture used for aluminum anodizing, and then according to the anodizing method of aluminum in sulfuric acid solution for anodizing for 2 ~ 3min, until the film is soft, off, and then after a little cleaning by lye and nitric acid light can be re conductive anodizing.

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