Surface treatment defects of aluminum alloy profiles

During the surface treatment process of aluminum alloy profiles, defects such as color difference, peeling and uneven oxide film often occur. Color difference may be caused by improper coating quality or coating process. It is necessary to select appropriate coatings and strictly control coating conditions. Uneven oxide film is usually related to improper current density or temperature control. During production, the process specifications should be strictly followed to ensure that the surface treatment quality meets the standards and extend the service life of the profile.