What is the meaning of sealing in the terminology of industrial aluminum profiles

There are many specific terms in the aluminum profile industry that are unique to other industries, such as European standard profiles, national standard profiles, extrusion, surface pretreatment, and so on. What we want to share today is what does sealing mean in the terminology of industrial aluminum profile profile? When the aluminum profile is extruded for cooling treatment, surface pretreatment is required, that is, the extruded profile is cleaned to expose the aluminum alloy The essence of the anodic oxidation surface treatment to produce an oxide film. And sealing means to close the pores of the porous oxide film on the surface of the aluminum alloy after anodization, so that the oxide film is dense, strong in adhesion, pollution prevention, corrosion resistance and wear resistance. Moreover, the oxide film itself is transparent. We use the strong adsorption of the oxide film before sealing to adsorb and deposit some metal salts in the film pores, so that the color of industrial aluminum profile profiles can be customized. Of course, most of the time we choose to make them appear silver white. There are many such special terms in the production and processing of aluminum profiles, and sealing is only one of them. The extrusion and deep processing of industrial aluminum profile profiles has always been the direction of tireless research and development, and continuous innovation to obtain aluminum products that are more suitable for social development.
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