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Reasons for Uneven Oxide Film of Alloy Aluminum Coil

2019/8/23 9:11:25 click:

The working area of the swing in the slot is too large, and then the color generated in the oxide film is inconsistent.
Prevention method: Oxidation of the workpiece is small and can be quietly disposed, but when the temperature of the solution is too low, it is easy to appear as a map-like spot, which is unnatural.
When the damaged part of the alloy aluminum coil processing coating is cut, the outer layer is made of high-quality aluminum alloy, and the inner layer is made of miscellaneous aluminum. Because of the large difference, it will produce "white hurricane"-like spots after oxidation.
Preventive measures: The materials are strictly controlled to reduce or eliminate the miscellaneous aluminum.
The process operation is incomplete in the alkaline etching of the workpiece. The original partial oxide film and dirt cannot be removed. Immediately after alkaline etching, the surface is still alkaline; the workpiece in the transfer process is in contact with foreign matter.
Precautionary measures: In the production process, the integrity of the alloy aluminum coil process is strictly guaranteed to produce a better product.
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Source of this article:https://ympcnc.com/