ã€China Aluminum Network】 Everyone should know that there are oxide films on the surface of aluminum alloy coils, which can protect the aluminum alloy coils. But sometimes we will find that the oxide film will have uneven color. Then how is this going? The following aluminum alloy coil manufacturers Mingtai Aluminum to explain to you about the uneven aluminum oxide film oxide causes and prevention.
1. Problem: Swinging the work area in the slot is too large and then the oxide film produces inconsistent colors.
Preventive measures: Oxidized workpieces fluctuate little and can be disposed of quietly, but when the temperature of the solution is too low, it is prone to map-like freckles, which is unnatural.
2. Problem: When the damaged part of the aluminum alloy coil processing layer is cut, a high-quality aluminum alloy is worn outside, and the inner layer is a mixed aluminum. Because of the large difference, a "vitreous" spot is generated after oxidation.
Preventive measures: The material strictly controls, reduces or removes miscellaneous aluminum.
3. Problems: In the process, the basic etching treatment of the workpiece is not complete. The original partial oxide film and the dirt cannot be removed; the alkaline etching light is immediately disposed of and the surface is still alkaline; the workpiece in the transfer process is in contact with foreign matter.
Preventive measures: The integrity of the aluminum alloy coil process is strictly ensured during the production process to produce a better product.
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