| 摘要 |
The invention discloses an aluminium alloy product with a fluororesin coating. The aluminium alloy product comprises an aluminium alloy substrate with embossed patterns on the surface, and a hard oxidation film layer and the fluororesin coating successively covering the surface of the aluminum alloy substrate; the fluororesin coating comprises a bottom oil layer, a middle oil layer and a surface oil layer which successively cover the hard oxidation film layer; the Vickers hardness HV of the aluminium alloy substrate is equal to 20-30; the concavo-convex patterns are irregular patterns with radian at the top of projections, the ten point height of microcosmic unflatness Rz is equal to 80-150 mu m, and the profile arithmetic average error Ra is equal to 20-40 mu m; and the bottom oil layer is a coating layer formed by performing spraying when the temperature of the surface of the aluminium alloy substrate is 30-50 DEG C. According to the product, by controlling concrete set conditions, such as the Vickers hardness of the aluminium alloy substrate, and the shape, the distribution and the roughness of the embossed patterns, and the hardness and the Vickers hardness of the hard oxidation film layer, the thickness of the fluororesin coating, the spraying temperature and the like, good non-viscosity and scratch resistance are obtained, also the beautiful appearance of the product surface is considered, and the service life of the product is improved. |
