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(一)为了装饰、防腐以及耐磨等目的在铝及铝合金的表面上利用电化学方法生成氧化膜,这种表面处理称为阳极氧化。阳极氧化在工业上已经应用了数十年。现在除铝以外,很多其他金属也有用阳极氧化来提高其耐蚀性能的,例如镁经过阳极氧化后,可以提高它对大气的耐蚀性能;为了装饰及防腐,在锌、镉、铜、银上也进行了阳极氧化;金属钛也可以在酸性或碱性溶液中阳极氧化;铬及铅合金则在硫酸
(A) for the purpose of decoration, corrosion and wear-resistant purposes in the aluminum and aluminum alloy surface using electrochemical methods to generate oxide film, this surface treatment is called anodic oxidation. Anodizing has been used industrially for decades. In addition to aluminum, many other metals are also useful anodic oxidation to improve its corrosion resistance, such as magnesium anodized, it can improve its corrosion resistance to the atmosphere; in order to decorative and anti-corrosion, zinc, cadmium, copper, silver Anodic oxidation has also been carried out; titanium metal can also be anodized in an acidic or alkaline solution; chromium and lead alloys have been anodized in sulfuric acid