Electrophoretic aluminum profile and surface treatment method thereof

• Main Authors: ZHANG WENDONG, MA KANGKANG, ZHAO XINGTING, GAO RUI'AN, ZHANG XIANGHUA, XI HUAKUN
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2020
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS

The invention discloses an electrophoretic aluminum profile and a surface treatment method thereof. An electrophoretic resin film layer formed by electrophoresis is arranged on the surface of the electrophoretic aluminum profile, and a composite film layer is arranged between the surface of the aluminum profile and the electrophoretic resin film layer; and the composite film is prepared from the aluminum profile by degreasing polishing and electrolytic oxidation. The to-be-processed aluminum profile is placed in a degreasing polishing solution and subjected to a reaction until the surface of the aluminum profile and the low-lying position of the profile are covered with a uniform composite salt film protecting layer; the aluminum profile without water washing is placed in an electrolytic oxidation solution and subjected to electrolytic oxidation, a composite film layer is formed; and the aluminum profile after the electrolytic oxidation is subjected to water washing and pure water washing and is subjected to