Aluminum fin material, heat exchanger, and method for manufacturing aluminum fin material

• Main Authors: TSUNODA RYOSUKE, TATEYAMA KEITA
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; 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

Provided are: an aluminum fin material which exhibits excellent hydrophilicity and antifouling properties; a heat exchanger; and a method for producing the aluminum fin material. An aluminum fin material (10) is provided with: an aluminum plate (1); a hydrophobic film layer (3) formed on the surface of the aluminum sheet (1); and a hydrophilic film layer (4) formed on the surface of the hydrophobic film layer (3), the hydrophobic film layer (3) containing an acrylic resin (3b) and polytetrafluoroethylene particles (3a), and at least a portion of the polytetrafluoroethylene particles (3a) protruding from the surface of the hydrophilic film layer (4). 提供一种发挥优异的亲水性和防污性的铝翅片材、热交换器和铝翅片材的制造方法。铝翅片材(10)具有：铝板(1)；形成于铝板(1)的表面的疏水性皮膜层(3)；形成于疏水性皮膜层(3)的表面的亲水性皮膜层(4)，疏水性皮膜层(3)包含丙烯酸树脂(3b)和聚四氟乙烯粒子(3a)，聚四氟乙烯粒子(3a)的至少一部分从亲水性皮膜层(4)的表面突出。