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The new technology of industrial aluminum electrolytic coloring of gold

Update:23-10-2017
Summary:

With the rapid development of industrial aluminum surfa […]

With the rapid development of industrial aluminum surface treatment technology, decorative tone is not only the silver, bronze and CY black, multi color profile has gradually entered the market, especially gold to its solemn, magnificent favored by people. The use of imitation gold yellow dye coloring film, its wear resistance, light, light fastness is poor, only suitable for light industrial products. Potassium Permanganate with golden yellow, whether it is color, or light resistance, abrasion resistance, climate and other properties, are far better than organic dye, and the price is cheap, can be widely used in the production of industrial aluminum profiles.
Production process
The production process of 6063T5 industrial aluminum electrolytic coloring of gold is not much difference with the anodic oxidation coloring process in general, the process is as follows:
Skim 6063T5 industrial aluminum, qualified (nitrate concentration 5%, room temperature, 5min), washing, alkali (sodium hydroxide concentration 50%, 55-60 C, 6min), washing, neutralization (nitrate concentration of 10% 5min at room temperature, washing, oxidation), nitrate (mass fraction 15%, current density 1.0A/dm2, 20 C 40min), water washing, water washing, water washing, electrolytic coloring of cold sealing (20-30 C 10min) - water washing.

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