Coating method of aluminum alloy wheel rim

A coating method and technology of aluminum alloy, which is applied to the device for coating liquid on the surface, wheel rim, coating, etc., can solve the problems of aluminum alloy wheel rim lack of metal texture, prone to color difference, high energy consumption, etc., to achieve Guarantee the smoothness and brightness of the product, reduce production costs, and relax the effect of process conditions

Inactive Publication Date: 2011-01-05
六和轻合金(昆山)有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its shortcomings are: long process time, large waste of raw materials, and high energy consumption. Although the paint can be covered, the adhesion of the paint is st

Method used

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  • Coating method of aluminum alloy wheel rim
  • Coating method of aluminum alloy wheel rim

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Embodiment Construction

[0029] The specific embodiments of the coating method of the aluminum alloy wheel rim of the present invention are given below, but the implementation of the present invention is not limited to the following embodiments.

[0030] In order to comply with the development trend of auto parts production, high-gloss silver paint is applied to the paint spraying of aluminum alloy wheel rims to make the surface of the product smooth and bright, replacing the electroplating process, on the basis of ensuring the quality and appearance of aluminum alloy wheel rims Above all, reducing the impact on the environment.

[0031] A coating method for an aluminum alloy wheel rim, using high-gloss silver paint as the coating paint, and its production steps are:

[0032] (1) Sandblasting the surface of the rough material: use 0.4mm diameter steel balls to sand the surface of the rough material to make the surface roughness uniform;

[0033] (2) Chromium-free pre-treatment: Passivate the surface ...

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Abstract

The invention relates to a manufacturing technique of a rim in the manufacturing technical field of automobile components, in particular to a coating method of an aluminum alloy wheel rim. The coating method comprises the following steps: (1) carrying out blast sanding on the surface of raw material; carrying out non-chromium pretreatment to passivate surface layer of the raw material; (2) spraying and roasting primer via black foundation paint; (3) spraying and roasting color paint via highlighting silver paint; (4) carrying out spraying and baking of colored paint by using highlighting sliver paint; and (5) spraying and roasting transparent paint via Aksu powder transparent paint. The coating method has the advantages that the black foundation paint is primarily applied in the manufacture of the aluminum alloy rim; the adhesion force of the aluminum rim is improved by surface blast sanding and non-chromium pretreatment; the whole paint coating can be accomplished in three times of spraying and three times of roasting; the technique conditions are relaxed and the production cost is reduced; and the highlighting silver paint is successfully applied in the paint spraying of the aluminum alloy rim to ensure degree of finish and luminance of a product and be applicable to replacing plating technique in industrialized production.

Description

【Technical field】 [0001] The invention relates to the technical field of automobile parts production, in particular to a coating process for the surface of an aluminum alloy wheel rim, and is a coating method for an aluminum alloy wheel rim. 【Background technique】 [0002] Automobile manufacturing is a worldwide modern industry. A car is not only a means of transportation, but also a fashion of life. Today's cars basically use aluminum alloy wheel rims. Aluminum alloy products require brightness and smoothness. The surface treatment processes include: electroplating, polishing, vacuum evaporation and high-gloss silver paint spraying. Due to the requirements of environmental protection, fewer and fewer enterprises use electroplating methods. Although the added value of polishing technology is large, its working environment is poor, and fully automatic polishing technology is in the hands of very few companies, so it is difficult to be promoted. Vacuum sputtering has been g...

Claims

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Application Information

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IPC IPC(8): B05D1/38B05D3/02B05D3/12B05D7/14B60B21/00
Inventor 罗锦荣彭文生
Owner 六和轻合金(昆山)有限公司
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