Water-based coating process for high-brightness silver wheel

Abstract

The invention provides a high-brightness silver wheel water-based coating process, which belongs to the technical field of wheel coating, and comprises the following steps of material pretreatment, bottom powder spraying, bottom powder curing, polishing and purging, preheating, water-based primer spraying, flash drying and leveling, water-based high-brightness silver paint spraying, flash drying, leveling and cooling, bright powder spraying and paint film curing. And an infrared resonance rapid flash-drying process is adopted after the water-spraying primer and the water-spraying high-brightness silver paint are subjected to flash-drying. According to the water-based coating process for the high-brightness silver wheel, an infrared resonance rapid flash-drying process is provided based on the difference between the resonance frequency of water molecules of water paint and the resonance frequency of organic film-forming matter molecules, and the problems that water-based primer is completely sprayed, high-water-content high-brightness silver and high-water-content primer are subjected to wet-on-wet operation, bottom biting is caused, and gloss loss is caused are solved; the appearance color consistency, high brightness, ultra-fine texture and paint film reliability of different positions of the high-brightness silver wheel are guaranteed, and VOC of construction is reduced.

Description

technical field [0001] The invention belongs to the technical field of wheel coating, and more particularly relates to a water-based coating process for high-brightness silver wheels. Background technique [0002] With the development of the automobile industry, people pay more and more attention to the appearance of the car while paying attention to the performance of the car. Similar to the appearance of electroplating, it is widely loved by consumers and car manufacturers, and has occupied an increasing proportion in the market in recent years. [0003] The existing high-brightness silver wheel coating process generally adopts oil-injection primer, oil-injection high-brightness silver paint, and oil-injection bright paint. The VOC content of paint and varnish is 70%-75%, 95%-98%, 65-70%, respectively. The high-brightness silver product has a large VOC emission in the manufacturing process, which does not meet the green sustainable development strategy advocated by the st...

AI Technical Summary

Problems solved by technology

[0003] The existing high-gloss silver wheel coating process generally adopts the methods of oil-sprayed primer, oil-sprayed high-gloss silver paint and oil-sprayed varnish. The VOC content of paint and lacquer is 70%-75%, 95%-98%, and 65-70%, respectively. The VOC emissions in the manufacturing process of high-gloss silver products are large, which does not meet the green and sustainable development strategy advocated by the state; and in the production process , the base powder is easy to orange peel, the powder package is poor, after polishing, spot repair, compared with other positions, the color difference is obvious and the adhesion is poor

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