Copper color aluminum alloy coloring system
A coloring system and aluminum alloy technology, applied in the field of aluminum alloys, can solve the problems such as hindering the production of copper colored electrophoretic alloy profiles, prone to color difference, etc., and achieve the effects of uniform and stable coloring, long sealing time, and strong resistance to salt spray corrosion.
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] Such as figure 1 As shown, the present invention provides a copper color aluminum alloy coloring system 100, comprising:
[0029] Sulfuric acid tank 1 for anodizing alloy profiles, the alloy profiles are anodized to form an oxide film with film holes, wherein the current density of the bath solution in sulfuric acid tank 1 is 125-135A / dm 2 , the temperature of the sulfuric acid bath is 20-23°C;
[0030] A coloring tank 2 for electrolytically coloring alloy profiles, wherein the bath solution of the coloring tank 2 contains copper sulfate pentahydrate and sulfuric acid, the concentration of copper sulfate pentahydrate is 14-16g / L, and the concentration of sulfuric acid is 18- 22 g / L, the pH of the coloring tank is 0.8-1.0, the temperature is 18-22°C, and t...
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