A high-gloss anti-corrosion treatment process for the surface of aluminum alloy profiles

Abstract

The invention discloses a high-gloss anti-corrosion treatment process for the surface of an aluminum alloy profile, including oxidation-polishing-surface drawing-sandblasting-high-gloss-spraying and printing process steps, which are added between S1. oxidation treatment and S3. surface drawing treatment process S2. Polishing treatment, and then after the oxidation treatment, the burrs and protrusions on the surface of the aluminum alloy profile can be modified, thereby increasing the surface smoothness of the aluminum alloy profile, thereby increasing the wire drawing forming in the subsequent surface drawing treatment process. At the same time, it also increases the adsorption capacity of the bath solution during subsequent oxidation treatment and coloring treatment, thereby improving the treatment effect of subsequent processes. The sealing agent uses organic resin as a group to make Ni ions in the pH environment of the mixed solution. Under the joint action of water and surfactant, hydrolysis and hydrolysis products are properly gathered into the pores of the oxide film on the surface of Lu to achieve sealing, thereby improving the corrosion resistance of the workpiece.

Description

technical field [0001] The invention relates to the field of aluminum alloy surface corrosion-resistant treatment technology, in particular to a high-gloss corrosion-resistant treatment technology for the surface of aluminum alloy profiles. Background technique [0002] During the process of processing, transportation, storage, etc., the surface of the workpiece is often covered with scale, mold sand, welding slag, dust, oil and other dirt left by rust molding. In order for the coating to be firmly attached to the surface of the workpiece, the surface of the workpiece must be cleaned before coating, otherwise, it will not only affect the bonding force and corrosion resistance of the coating and the metal, but also make the base metal even if it is coated. It can continue to corrode even under the layer protection, causing the coating to peel off, affecting the mechanical properties and service life of the workpiece. Therefore, the surface treatment of the workpiece before p...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-gloss corrosion-resistant treatment process on the surface of aluminum alloy profiles to solve the existing aluminum alloy surface treatment process. The process basically includes oxidation, wire drawing, coloring, and edge sealing. Afterwards, the wire drawing process is carried out, but after the oxidation before the wire drawing, the surface of the aluminum alloy sheet will have burrs and protrusions, and the direct wire drawing treatment will affect the quality of the finished product in the wire drawing process, and most of the existing polishing devices have relatively poor structures. Complicated, high cost, technical problems that are not easy to popularize and use

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