Aluminum alloy radiator and preparation method thereof

• Main Authors: LING JIANHONG, BAI WENXIN, ZHANG XIANJUN, FANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: BLASTING; 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 BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; DIFFUSION TREATMENT OF METALLIC MATERIAL; HEAT EXCHANGE IN GENERAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; WEAPONS

The invention discloses an aluminum alloy radiator and a preparation method thereof, belongs to the technical field of aluminum alloy surface treatment, and discloses an aluminum alloy radiator attached with a protective film, and the protective film contains a Mannich base compound. The metal compound prepared from the Mannich base compound and the metal reagent is used in the conversion liquid to prepare the aluminum alloy radiator attached with the protective film, and the conversion liquid is good in stability and can be stably stored for more than 20 days under the condition that the pH value is adjusted to 5; the prepared protective film is high in adhesion amount, and the weight of the protective film is 75 mg/cm < 2 > or above; the corrosion resistance is good, and the corrosion resistance is more than 50s in a 3% potassium dichromate solution; the boiling water resistance is good, and the salt water soaking resistance is good. 本发明公开了一种铝合金散热器及其制备方法，属于铝合金表面处理技术领域，包括，一种附着保护膜的铝合金散热器，保护膜中含有曼希尼碱化合物。本发明由于采用