Paint spraying method, paint spraying device, and paint spraying product of composite part

Abstract

The invention relates to a paint spraying method of a composite part. The method comprises the following steps: providing a composite part which includes a plastic part and a non-plastic part; performing paint spraying processing which includes one or more paint spraying steps on the composite part, the paint spraying steps including spraying paint on the paint spraying required regions on the plastic part and spraying paint on the excessive paint spraying region of the non-plastic part; and after the paint spraying processing, and through applying a paint remover on the composite part, performing paint removing processing, so that the paint on the excessive paint spraying region falls off while the paint on the paint spraying required regions is remained. The invention also relates to a paint spraying device executing the above paint spraying method, and a paint spraying product manufactured by spraying paint on a composite part through using the above paint spraying method.

Description

technical field [0001] The invention relates to a painting method for a composite part, wherein the composite part includes a plastic part and a non-plastic part. In addition, the present invention also relates to a composite painting equipment and a composite painting product. Background technique [0002] Combining plastic and non-plastic parts into composite parts is a known molding method, which is often used in the processing of parts for mobile devices. Wherein, the non-plastic part is formed of a suitable non-plastic material, and the non-plastic material can be selected from metal, glass, ceramics and the like. [0003] Especially in the field of handheld devices, it is common in the industry to combine plastic parts and non-plastic parts into composite parts to produce casings of handheld devices. A relatively strong and thin casing can thus be obtained. Wherein, the non-plastic part is usually made of low-density, high-strength magnesium-aluminum alloy, which is...

AI Technical Summary

Problems solved by technology

When the covering film is over-covered, the covered surface of the plastic part will not be sprayed with paint during the painting process. In this way, after the painting is completed, some plastic surfaces will still be unpainted, resulting in poor painting or subsequent reliability. sexual verification invalid

[0011] Whether under-covering or over-covering, products obtained under these conditions are defective

If it cannot be effectively remedied through remedial measures, such defective products will be completely scrapped

And even if the product can be remedied through remedial measures, such as rework, etc., because the remedial measures increase the process, increase the cost, and prolong the product production cycle

And because the oversprayed area or the area to be repainted is small or irregular in shape, in the actual operation process, more skilled and experienced operators are required to take remedial measures with the help of more refined tools, and these factors will greatly increase Increase the difficulty and cost of production

[0012] Due to the above-mentioned problems, the yield rate of the painted products made by spraying the composite parts according to the method of the prior art is low, and the cost is relatively expensive

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