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Reasons And Treatment Methods For Dyeing Aluminum Sheets

Aug. 13, 2018
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With the development of process technology, the use of Aluminum Composite Panel in people's lives is getting higher and higher, and the color is no longer monotonous as before. Now the aluminum-plastic panel processing can color the color you want, but when we color the aluminum-plastic panel, it will inevitably encounter the situation of dyeing and not coloring. And the processing methods are:

1. The thickness of the anodized film is insufficient: the solution is to check whether the anodizing process is standardized, and whether the temperature, voltage, and conductivity are stable, if any

Often, please adjust the specifications accordingly. If there is no abnormality, the oxidation time can be extended appropriately to ensure the film thickness is up to standard.

2. The pH of the dye solution is too high: at this time, the pH value can be adjusted to the standard value with glacial acetic acid.

3. After the oxidation, the workpiece is placed in the water tank for too long: it is recommended to dye in time. If this happens, the workpiece can be placed in the anodizing tank or nitrate.

After the appropriate activation treatment in the acid neutralization tank, the dyeing is carried out, and the effect is good.

4. The dye is decomposed or mildewed: at this time, the dye needs to be replaced and the appropriate dye is selected.

5. The oxidation temperature is too low, resulting in dense film: the oxidation temperature can be appropriately increased.

6. Poor Conductivity: Poor contact in the anode copper rod or cathode lead plate may result in poor conductivity in the batch. Pay attention to cleaning the anode copper rod and the cathode lead plate to ensure good conductivity.

it is good.

The above is about the cause and treatment of Different Colour Effects Aluminum Composite Panel dyeing. At present, aluminum-plastic panel has become a common material in the construction field, and it is widely used in decorative fields such as building exterior walls, indoor walls, and advertising signs. However, as people's aesthetic requirements for decorative articles are getting higher and higher, aluminum-plastic panels with a single color and a dull pattern can no longer meet the production needs.

Reasons And Treatment Methods For Dyeing Aluminum Sheets

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