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How to solve the color difference of aluminum oxidation

Views: 15     Author: Site Editor     Publish Time: 2022-03-14      Origin: Site

The coloring of aluminum oxide products can make the aluminum alloy put on a colorful coat, which has an excellent decorative effect. According to the method, it can be divided into spontaneous coloring, adsorption coloring, and electrolytic coloring. Reasons and solutions for the light color and color difference of aluminum oxidation. The uneven thickness of the film may be caused by the uneven temperature and concentration of the anodizing bath. The bath should be stirred with compressed air to greatly solve such problems. The temperature or concentration of the dye liquor is uneven, and the stirring process is introduced. If the dyeing speed is too fast, the bottom of the workpiece enters the dye solution first and leaves the dye solution last, so the bottom is most likely to be dyed deeply.

The solution is to dilute the dye and prolong the dyeing time appropriately. Poor electrical conductivity may be caused by loose hangers. Pay attention to hang them tightly to avoid such problems. If the dye is too thin, you can add dye to increase the concentration. If the temperature of the dye liquor is too low, the dye liquor can be heated to below 60°C. Improper dissolution of dyes, or floating of insoluble dyes, is prone to color difference. The solution is to improve dye dissolution.

The coloring of aluminum oxide products can make the aluminum alloy put on a colorful coat, which has an excellent decorative effect. According to the classification method, it can be divided into spontaneous coloring, adsorption coloring, and electrolytic coloring. Decolorization problems mostly occur in adsorption coloration. Since the dye is adsorbed on the surface of the pores of the aluminum oxide film, decolorization is inevitable. However, if the hole can be sealed well, the discoloration of the aluminum oxide film can be prevented. Among the many sealing processes, the simplest is hot water sealing, which is low in cost but ineffective. The cost of steam sealing is very high, and its sealing effect is the most obvious.


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