ALUMINUM FIN MATERIAL, HEAT EXCHANGER AND MANUFACTURING METHOD OF ALUMINUM FIN MATERIAL

• Main Authors: TSUNODA RYOSUKE, TATEYAMA KEITA
• Format: Patent
• Language: English; Japanese
• Published: 02.09.2021
• 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

To provide aluminum fin material that exhibits excellent hydrophilicity and antifouling properties, a heat exchanger, and a manufacturing method for aluminum fin materials.SOLUTION: The aluminum fin material 10 comprises an aluminum plate 1, a hydrophobic film layer 3 formed on the surface of the aluminum plate 1, and a hydrophilic film layer 4 formed on the surface of the hydrophobic film layer 3. The hydrophobic film layer 3 contains an acrylic resin 3b and polytetrafluoroethylene particles 3a. The polytetrafluoroethylene particles 3a protrude at least partially from the surface of the hydrophilic film layer 4.SELECTED DRAWING: Figure 1D 【課題】優れた親水性と防汚性とを発揮するアルミニウムフィン材、熱交換器、および、アルミニウムフィン材の製造方法を提供することを課題とする。【解決手段】本発明に係るアルミニウムフィン材１０は、アルミニウム板１と、前記アルミニウム板１の表面に形成された疎水性皮膜層３と、前記疎水性皮膜層３の表面に形成された親水性皮膜層４と、を備え、前記疎水性皮膜層３は、アクリル樹脂３ｂとポリテトラフルオロエチレン粒子３ａとを含み、前記ポリテトラフルオロエチレン粒子３ａの少なくとも一部が、前記親水性皮膜層４の表面から突出していることを特徴とする。【選択図】図１Ｄ