阳极氧化完整工艺流程

阳极氧化完整工艺流程

阳极氧化工艺流程

机械与化学表面处理是金属表面处理的必要步骤，包括抛光或刷光、除油及脱脂、外观质量检查等，以为后续处理工序作表面准备。

阳极氧化是通过一系列手段，在金属表面形成一层厚氧化铝膜，即阳极氧化膜。染色则是在阳极氧化膜的微孔结构内沉积染料分子，而封孔则是为了封住微细孔，使染料固定于氧化膜内。

吸附着色的理论依据是染料分子沉积并积聚在氧化膜微孔的内表面，其产生颜色之化合物并非产生自工艺本身而是存在于开初的介质中。染料分子与阳极氧化膜之间的键合力起作用，导致吸附。但这种键合是不稳定的，染料分子会随着溶液中染料浓度的变化而发生解吸附，导致褪色合色料扩散。因此，在完成染色之后的多孔膜封闭工序是必不可少的。

铝材的物理成分以及级别是吸附着色是否成功的重要因素。铝材分为高纯铝、纯铝和合金铝。高纯铝只含不超过痕量的亲质金属；纯铝的亲质金属含量不超过1%。合金中的成分越高，耐机械磨损性便越强，但对装饰性着色的适应性则相对越差。因此，必须选用阳极氧化级的铝材，才能保证在阳极氧化和着色后仍然能保持吸引人的外观。

总之，阳极氧化工艺流程需要严格按照要求进行，从机械与化学表面处理到染色、封孔等步骤，都需要注意铝材的级别和成分对色泽和透明度的影响。

Aluminum and aluminum alloys have XXX also influenced

by the original base color.

1.When the magnesium content is greater than 5%。the anodized oxide film will XXX.

2.Even with a low content of only 1% of manganese and chromium。the oxide film will have a yellowish tint。When the content exceeds this level。the XXX.

3.Silicon tends to make the oxide film gray。but it largely depends on its form in the alloy。If it exists in a solid n form and the content is less than 1%。it will not significantly darken the oxide film。When the content exceeds this level and exists in a non-solid n form。the metal will XXX with 3% to 6% silicon is called "gray tone gold."

4.Aluminum alloys with copper content of no more than 0.2% have no significant impact on the color。transparency。or XXX。with the usual amount used in some alloys (such as aluminum。copper。magnesium。and others)。copper often brings irregular spots。XXX。aluminum-XXX (pitting n) during the XXX.

5.Zinc has no effect on the quality of the oxide film。If the content is around 2% or slightly higher。and if the alloy does not contain other components。there will be no significant color change during dyeing。nor will it make the dye film dull.

III。Mechanical Surface XXX and Chemical Surface Treatment

XXX。controlled surface treatment is a necessary n for perfect and uniform dyeing。Mechanical and chemical pretreatment determines the final appearance of the metal surface。as the XXX is not helpful for optical performance。The purpose of chemical treatment is to remove grease。oil。XXX。residual soap。and natural oxide film from the metal。If these pollutants are not thoroughly removed。they will hinder the n of the oxide film。and thus have a XXX are the same as those for anodizing

and coloring processes.

IV。The XXX Films

XXX of anodized oxide films。the final tone not only depends on the coloring process itself。but also to an XXX on the performance of the oxide film。The performance of the oxide film depends on the anodizing parameters。In industrial n。this is

often XXX tracing the cause of dyeing faults。XXX dyeing。and even if the dyeing process is improved。it can only be XXX.