防腐铝阳极供应厂家

Anodic oxidation can improve the corrosion resistance of aluminum alloy, improve the surface hardness and wear resistance of aluminum alloy, and have good decorative properties after proper coloring treatment. The anodizing film coloring technology of aluminum and its alloys can be divided into 3 types: chemical dyeing, electrolytic coloring and electrolytic coloring. Chemical dyeing makes use of the porous and chemical activity of the oxide film to dye a variety of pigments to color the oxide film. According to the mechanism and process of coloring, it can be divided into organic dye coloring, inorganic dye coloring, color pulp printing, coloring and colorant dyeing. Electrolytic coloring is an anodized aluminum and its alloy in the aqueous solution containing metal salts. The metal, metal oxide or metal compounds are deposited at the bottom of the porous layer of the oxide film, and various colors are presented due to the scattering of light. The whole electrolytic coloring of aluminum and its alloy is coloured at the same time as anodizing, which is characterized by one step of oxidation and coloring, and the coloring film has good light resistance, heat resistance, corrosion resistance and wear resistance. The whole electrolytic coloring is divided into natural color, electrolysis color and power supply color, in which the color of electrolysis is dominant, natural color is second, and the color of power supply is being developed.
阳极氧化铝是指在铝及铝合金表面镀一层致密氧化铝为了防止进一步氧化，其化学性质与氧化铝相同。但是与一般的氧化膜不同，阳极氧化铝可以用电解着色加以染色。
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