Coloring process of aluminum oxide material
A kind of aluminum oxide and process technology, applied in the direction of metal material coating process, etc., can solve the problem of single color and functionality of aluminum products
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[0007] In order to achieve the brightness and realistic color of aluminum products, mechanical polishing, electrolytic polishing and other pre-treatments must be carried out on the colored surface before oxidation with sulfuric acid solution. The thickness of the oxide film is at least 6 microns, so the oxidation time must be In 30min. The oxidized aluminum material is colored with soluble reducing pigments, which consists of two processes of coloring and color development.
[0008] Adhesion: Spray titanium dioxide powder on aluminum products to form a thin film.
[0009] Coloring: lysanthracene golden IGK: 0.035g / L, lysine orange IRK: 0.1 g / L; PH (adjusted with acetic acid): 4-5; temperature: room temperature.
[0010] Add the calculated amount of the above two pigments to a little cold water to make a paste, dissolve it evenly with boiling water, then pour it into the color tank, dilute to the required volume, adjust the pH value to the process range with acetic acid, and...
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