1. When the material is oxidized, the treatment effect is affected by the composition, content, concentration, temperature, treatment time and other factors, which will lead to different product effects;
2. In the closed coloring process of products, the color difference existing in the production of material pretreatment increases the difficulty of sample matching, color matching and color matching;
3. The metal element content and material texture
of different batches of raw material aluminum plate can not be consistent, and it is difficult to achieve the same effect as the sample after many adjustments and sample evaluation in coloring treatment.
From the above factors, we can see that there
are many factors causing color difference, such as raw materials, treatment liquid, treatment time, treatment temperature, etc. Because of the color difference problem, some downstream customers dare not use anodized aluminum plate. Even though it has
many advantages in performance, people still have doubts about it.
In order to solve this problem, continuous roll to roll anodizing project should be put into production on the equipment; in terms of raw materials, cooperative partnership should
be established with China's two major hot rolling production bases, namely, SWA and Chinalco, to ensure the consistency of raw material texture and product stability. The coil production equipment can ensure the consistency of the composition, content,
concentration, temperature and processing time of the whole coil product, so as to effectively control the color difference range of the product and ensure the consistency of the product texture.
The above is the reason why there is color difference
in aluminum oxide plate. There are many factors causing color difference in aluminum oxide plate, such as raw materials, treatment solution, treatment time, treatment temperature, etc. The color difference of aluminum oxide plate is unavoidable, and it
is also a characteristic of anodized aluminum plate. However, every enterprise will regulate a range of color difference, and the products within the range are normal products.