An aluminum alloy product with a fluororesin coating

Abstract

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.

Description

technical field [0001] The invention belongs to the field of aluminum alloy product manufacturing, and in particular relates to an aluminum alloy product with a fluororesin coating. Background technique [0002] At present, aluminum alloy products have been widely used in various aspects of daily life and industrial production. Due to the good non-stick and chemical stability of fluororesin, it is usually coated with fluororesin coating on the surface of aluminum alloy products used for cooking tools such as non-stick pans. Such aluminum alloy products with fluororesin coating generally use " It is made by sandblasting on the surface of the aluminum alloy substrate first, and then coating with fluororesin paint after the sandblasting surface has small holes. However, this processing method is easy to cause air bubbles, which in turn leads to problems such as the coating is easy to fall off, and the coating surface is not resistant to scratches by sharp objects. These probl...

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Problems solved by technology

Although the fluororesin coating on the convex part of the product surface can protect the fluororesin coating on the concave part from abrasion and keep the product surface as long as possible with a non-stick effect, the above technology does not consider protecting the coating on the convex part of the product, so the coating on the convex part The coating on the inside is still very easy to be worn, and it is inevitable that it will fall off in a short period of time, which will cause the deterioration of the non-stick effect and the shortening of the product life, and also affect the aesthetics of the product surface

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