Aluminum radiator profiles
is becoming more and more popular with customers in the radiator market. At the same time, because different customers have different requirements for radiator production, and customers have different requirements for products, the surface treatment process of aluminum radiator profiles is also different. Sometimes customers have special requirements for the surface of aluminum radiator profiles. For example, the surface corrosion resistance of the extrudated aluminum radiator profiles is not very strong, so it is sometimes necessary to anodize (blackening) the surface treatment to increase the corrosion resistance, wear resistance and appearance of the aluminum; Do you know what surface treatments are involved in the production and processing of aluminum radiator profiles?
The main oxidation process of aluminum radiator profiles is as follows:
Surface pretreatment: chemical or physical methods are used to clean the appearance of the profile, exposing the genuine matrix, in order to receive a integrated and dense artificial oxide membrane. Mirrored or matte (matte) surfaces can also be obtained by mechanical means.
Anodic oxidation: Under certain technological conditions, anodic oxidation occurs on the surface of the pretreated profile to form a dense, porous and strong adsorption AL203 film.
Hole sealing: The membrane pores of the porous oxide film generated after anodic oxidation are closed to enhance the anti-pollution, anti-corrosion and anti-wear properties of the oxide film. The oxide film is colorless and transparent, using the strong adsorbability of the oxide film before the sealing hole, the adsorption and deposition of some metal salts in the film hole, can make the appearance of the aluminum profile show the natural color (silver white) other than many colors, such as: black, bronze, gold and stainless steel color.