Imitation plating processing method for surface of automobile exterior decoration

Abstract

The invention discloses an imitation plating processing method for the surface of an automobile exterior decoration, which is characterized by comprising the following steps: (1) cleaning with dry ice; (2) treating with flame and removing edge burr; (3) spraying a primer and curing; and (4) carrying out magnetron sputtering deposition coating. Compared with the prior art, the method disclosed by the invention has the advantages that: the conventional plating is replaced by the magnetron sputtering deposition coating way which is combined with other effective steps to metalize the surface of the base material so that the entire process causes little pollution and is low in energy consumption and cost. The products obtained by the method can meet the standard requirements of the automobile exterior decoration in weather resistance, corrosion resistance, binding force and the like.

Description

technical field [0001] The invention relates to a method for treating the surface of an automobile exterior decoration, in particular to a method for processing the surface of an automobile exterior decoration by imitating electroplating, so that the surface of the automobile exterior decoration has metallic luster and good corrosion resistance. Background technique [0002] At present, the automobile manufacturing industry, especially the household automobile manufacturing industry, in the process of automobile design and manufacturing, in order to pursue lower manufacturing costs and automobile operating costs, generally pursues the lightweight of automobiles. In order to reduce the weight of automobiles, there are many exterior decorations At the same time, in order to meet the sensory needs of customers, metal colors are usually added to plastic parts. Therefore, the electroplating technology of copper plating + multi-layer nickel + chromium on ABS or PC\ABS plastics is w...

AI Technical Summary

Problems solved by technology

[0007] First, the production process pollutes the environment a lot. Among the materials used in electroplating, hexavalent chromium is a carcinogenic and toxic substance to the human body, and nickel is a toxic substance that is allergic to the skin. At the same time, a large amount of toxic substances containing Chromium and nickel-containing wastewater not only increase the production cost due to wastewater treatment, but also affect the environment with trace emissions. In addition, there are a lot of solvents in the coating project, which need to be disposed of

[0008] Second, the choice of substrates is relatively limited. At present, plastic electroplating can only be industrialized on ABS and PC\ABS, and other plastic materials have not yet been mass-produced.

[0009] Third, a large amount of non-ferrous metals are used in electroplating products, which consumes a lot of materials and costs high

[0010] Fourth, the existing plastic electroplating process cannot produce high-gloss or matt metal effects due to the material of the coating itself

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