Aluminum alloy degreasing and polishing two-in-one treatment solution and method for degreasing and polishing aluminum alloy

• Main Authors: BI XIAOXUE, XU BO, YU SHUBIN, GAO RUI'AN, XI HUAKUN
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2019
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE

The present invention discloses an aluminum alloy degreasing and polishing two-in-one treatment solution and a method for degreasing and polishing aluminum alloy. The aluminum alloy degreasing and polishing two-in-one treatment solution comprises the following components: 1-20 g/L of oxalic acid, 1-5 g/L of hydrofluoric acid or hydrofluoride, 0.001-0.01g/L of a surfactant and 0.05-0.15 g/L of an auxiliary agent. The method for treating the aluminum alloy by using the treatment solution comprises the following treatment steps: immersing to-be-treated aluminum alloy profiles into the two-in-onetreatment solution; initially reacting until bubbles begin to emerge; and then continuously immersing for three to five minutes to obtain the aluminum alloy profiles with smooth surfaces. The presentinvention is used to treat aluminum alloy profiles, which can not only complete degreasing and polishing in one step, but also improve the corrosion resistance and pollution resistance of the profiles, improve the high mirror