Summer, also known as the rainy season, is the time when aluminum products such as aluminum sheets, coils, and strips are subject to water corrosion and oxidation. Although there is a classification of oxidized aluminum sheet in aluminum products, oxidized aluminum sheet and oxidized aluminum sheet are completely different things. Today, Mingtan editorial to explain the difference between oxidized aluminum plate and aluminum plate oxidation:
First, aluminum oxide plate generally refers to: aluminum plate after acid and alkali oxidation, the formation of a protective film on the surface of the aluminum plate. The general oxidized film is silver white. If customers have special requirements, can also be oxidized to different colors according to customer requirements.
Oxidation is divided into: ordinary oxidation, anodic oxidation and hard oxidation.
Aluminum plate ordinary oxidation refers to: aluminum plate after acid, alkali flow tank, the surface of the aluminum plate cleaning, the formation of a layer of protective film on the surface of the aluminum plate, there is known as the oxide film.
Aluminum anodic oxidation refers to: aluminum plate after ordinary oxidation, in the oxidation process of a process of electricity.
Then the difference between aluminum anodic oxidation and aluminum hard oxidation is: anodic oxidation of the depth of the oxide film is called shallow, hard oxidation of the depth of the oxide film is called deep.
Second, the aluminum plate oxidation is generally refers to the aluminum plate or aluminum coil connected to the same part of the same corrosion phenomenon, corrosion of the size of the area and the same pattern, the same.
Causes of this situation:
1: In the aluminum plate or aluminum coil packaging, the temperature is too high. Steam is formed inside the package, and corrosion occurs when the aluminum plate or coil is affected by moisture.
2: Aluminum plate or coil rain, so that the rain water back into the package. Aluminum plate, aluminum coil corrosion phenomenon.
3: In the humidity of the environment of the aluminum plate, aluminum coil corrosion phenomenon.
How to avoid the occurrence of such phenomena:
1: Let the aluminum plate and coil cool naturally before packing.
2: You can borrow the fan to cool down the aluminum plate and coil.
3: Packing aluminum plate, aluminum coil outside the first plastic sheet for packaging, with cardboard packaging.
4: During the transportation of goods, account for the driver to cover the tarpaulin.
5: In the environment of large degree, put more desiccant in the package. And put the aluminum plate, aluminum coil in a drier environment.
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