Abstract

Various methods of surface preparation for electroplating on aluminum alloys are considered. It was shown that the most suitable of them is electrochemical anodizing. The composition and operating mode of the anodizing electrolyte were developed. The effect of the electrolyte composition on the structure and the film surface development is shown. The stability of the oxide film produced as a result of anodizing to dissolution in copper and nickel plating electrolytes was demonstrated. The relationship between the adhesion of electroplated coatings to an aluminum substrate with the relief and uniformity of oxide films was established. The proposed pretreatment is universal and can be used for any aluminum alloys in modern automatic lines without breaking the technological process chain.

中文翻译：

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电镀铝合金的表面处理

摘要

考虑了在铝合金上进行电镀的各种表面处理方法。结果表明，最合适的是电化学阳极氧化。研究了阳极氧化电解液的组成和运行方式。显示了电解质组合物对结构和膜表面显影的影响。证明了由于阳极氧化而溶解在铜和镍电镀液中而产生的氧化膜的稳定性。建立了电镀涂层对铝基板的附着力与浮雕和氧化膜均匀性之间的关系。拟议的预处理是通用的，可在不中断工艺流程链的情况下，用于现代自动生产线中的任何铝合金。