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1.铝电解着色的原理电解着色是指铝阳极化膜在含有金属盐的水溶液中进行交流电解而获得有色膜的方法。铝阳极化膜的电解着色过程是金属离子的一种电化学还原现象,同电镀一样也包括金属离子的传质过程、电极还原和电结晶过程。金属离子主要靠扩散进入氧化膜孔隙的内部,在氧化膜阻挡层上接受电子而还原,沉积在多层底部的阻挡层上。欲使金属沉积在阻挡层上,关键在于活化阻挡
1. Principles of aluminum electrolytic coloring Electrolytic coloring refers to the aluminum anodized film in a metal salt containing aqueous solution for AC electrolysis to obtain a colored film method. The electrolytic coloring process of aluminum anodized film is an electrochemical reduction phenomenon of metal ions. Like electroplating, it also includes the mass transfer process of metal ions, the electrode reduction and the electrocrystallization process. The metal ions diffuse mainly into the pores of the oxide film and are reduced and deposited on the barrier layer on the bottom of the multilayer by receiving electrons on the oxide film barrier layer. The key to depositing metal on the barrier is activation blocking