合金铝板的电解着色具有良好的装饰性，因此在国内外得到广泛应用，特别是在建筑铝型材的表面处理生产中应用较为普遍。
Electrolytic coloring of aluminum alloy has good decoration, so it has been widely applied at home and abroad, especially in the surface treatment of building aluminum profile.
目前主要工艺是采用锡-镍混合盐电解着色，生产出的产品颜色以香槟色为主，相对于单镍盐着色，锡-镍混合盐电解着色的产品颜色光亮，色调饱满；存在的主要问题是产品存在色差，铝型材生产过程中的挤压工艺和氧化着色工艺的不合理都会导致产品出现色差。
The main process is the use of Sn Ni mixed salt electrolytic coloring, produce the product color to champagne, compared with single nickel salt coloring, tin nickel mixed salt electrolytic coloring products of bright colors, full color; the main problem is the product difference, extrusion process and oxidation coloring process for aluminum production process the unreasonable will lead to product color.
挤压工艺对合金铝板的氧化着色的影响主要是模具设计、5052铝板挤压温度、挤压速度、冷却方式等对挤出型材表面状态和组织均匀性的影响。模具设计应能使进料充分的揉合，否则容易出现亮（暗）带缺陷，同一根型材上都可能出现分色；同时，模具状态及型材表面的挤压纹等也影响氧化着色。挤压温度、速度、冷却方式及冷却时间不同，使型材组织不均一，也会产生色差。
The influence of extrusion process on the oxidation and coloring of aluminum alloy is mainly affected by die design, 5052 aluminum extrusion temperature, extrusion speed and cooling way on the surface state and uniformity of extruded profiles. The mold design should make full feed blend, or prone to bright (dark) with defects, may appear color one profile; at the same time, the state and the surface profile extrusion mold lines also affect oxidation coloring. The extrusion temperature, speed, cooling mode and cooling time are different, so that the profile of the profile is not uniform and the color difference will be produced.

阳极氧化对合金铝板电解着色的色差有很重要的影响，尤其是在立式氧化线生产过程中很容易出现两头色，立式氧化槽深7.5m,上下槽液容易产生温差，温度对阳极氧化有重要的影响，温度高，氧化槽液对氧化膜的溶解加剧，多孔型阳极氧化膜表面的孔径会加大，反之，多孔型阳极氧化膜表面的孔径较小。另外，温度高，阳极氧化膜的孔隙率较高，反之较低。
Have a very important influence on electrolytic coloring of anodic oxidation of aluminum alloy color, especially in the production line of vertical oxidation process is prone to two color, vertical oxidization groove depth 7.5m, upper and lower tank is easy to produce temperature difference, the temperature has great influence on the anodic oxidation, high temperature oxidation bath on the dissolution of oxide film increased porous anodic oxide film, the surface will increase, on the contrary, the porous anodic oxide film on the surface of the small aperture. In addition, the temperature is high, the porosity of the anodic oxide film is higher, and vice versa is lower.
合金铝板电解着色主要是使着色液的金属离子在氧化膜的微孔内的阻挡层的表面上进行电化学还原反应，使得着色液中的金属离子沉积在阳极氧化膜孔的底部，对入射光发生散射而显现出不同的颜色，微孔中沉积的物质越多，则颜色越深。在通过相同的电量的条件下，温度高与低的部位上沉积等量的金属或金属化合物，对于孔隙率高和表面孔径大的部位，平均每个孔的沉积物要少。
Electrolytic coloring aluminium alloy is mainly metal ions in oxide coloring solution within the pores of the barrier layer on the surface of the electrochemical reduction reaction, the deposition of metallic ions in liquid coloring anodic oxide film in the bottom of the hole, the incident light scattering and showing a different color, the more material micro deposition, color more deep. The same amount of metal or metal compound is deposited on the part with high and low temperature through the same electric quantity. For the location with high porosity and large surface aperture, the average pore sediment is less.