The Sandblasting oxidation treatment process

After the industrial aluminum profile is extruded, there will be obvious stretch marks on the surface, and the surface micropores are relatively large and relatively rough, and must be sandblasted.

The impact of emery in the sandblasting process will cause changes in the surface structure of the aluminum profile, and the crystal will slip along with the plastic deformation process, resulting in an increase in the dislocation density in the subgrain, making the profile surface smoother.

The surface treatment of industrial aluminum profiles needs to go through the following steps:

①Surface blasting treatment;

② Surface pretreatment;

③Degreasing process of industrial aluminum profiles;

④Acid etching process of industrial aluminum profiles;

⑤Alkaline etching process of industrial aluminum profiles;

⑥ Neutralization process;

⑦ Oxidation process of industrial aluminum profiles;

⑧ Industrial aluminum profile sealing process;

At present, many industrial aluminum profiles on the market have reduced the surface oxidation treatment process of industrial aluminum profiles in order to reduce costs. The silver white oxidation treatment method is directly used, and the surface is bright silver. Standard coating 10μ-12μ).