What is the coloring process for battery aluminum control boxes?
At present, the lithium battery aluminum control boxes shell on the market is mainly made of aluminum. Because it has a strong wear resistance, weather resistance, corrosion resistance,
but also can form a variety of colors on the surface of the substrate, such aluminum profiles enclosure can be maximum suitable for most requirements,
so what is the coloring process for battery aluminum control boxes?
Now let our technician show you,
1. Surface pretreatment:
The surface of profiles is cleaned by chemical or physical methods to expose a pure substrate,
which is conducive to obtaining a complete and compact artificial oxide film.
The mirror or matte (Ya Guang) surface can also be obtained by mechanical means.
2. Anodic oxidation:
A dense, porous and strong adsorptive layer of AL203 film was formed on the surface of the surface pretreated profiles by anodic oxidation under certain technological conditions,
3. Sealing holes:
The pore of the porous oxide film formed by anodic oxidation is sealed to enhance the anti-pollution,
corrosion resistance and wear resistance of the oxide film.
The oxide film is colorless and transparent,
by using the strong adsorption of the oxide film before sealing, some metal salts are adsorbed and deposited in the membrane pores.
It can make the profile appear many colors other than the original color (silver white), such as black, bronze, gold and stainless steel, etc