| 摘要 |
PURPOSE:To improve anti-chipping property and the corrosion inhibition of a part to come off by forming a coat of organic solvent paint having a specific physical property to an aluminium wheel in advance and applying a thermocuring acrylic resin paint to the surface of the coat. CONSTITUTION:Following shot blast processing and cutting, an organic solvent paint I is applied to an automotive wheel of chemically treated aluminium alloy casting. Then the coat is finished by applying a thermocuring acrylic resin paint. In this case, the paint I used is capable of forming a coat having more than 100% of tensile rupture strength elongation rate and more than 25kg/cm<2> of rupture point stress to improve flexibility and adhesion. Further, the paint II used shall have physical property values such as 3-20% of tensile rupture strength elongation rate and more than 150kg/cm<2> of rupture point stress to improve coat finish, weather-proofness, rigidity, etc.
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