Surface treatment process of plastic base material and plastic part

Abstract

The invention discloses a surface treatment process of a plastic base material and a plastic part. The treatment process disclosed by the invention comprises the following steps: (1) spraying primer onto the surface of a plastic base material with spark patterns texture, preheating, curing, thus obtaining a primer layer; (2) plating a metal coating on the surface of the primer layer; (3) spraying intermediate paint onto the surface of the metal coating, preheating, curing, thus obtaining an intermediate paint layer; and (4) spraying finishing paint onto the surface of the intermediate paint layer, preheating, curing, thus obtaining a surface coating. By adopting the treatment process, a plastic part with a pseudo-metal and matte effect can be produced only by virtue of three times of spraying and one time of true plating, and fewer procedures are needed; and moreover, a 3D laser etching process is not needed by virtue of the treatment process of the invention, the cost is low, and the production efficiency is greatly increased; and in addition, the industrial first pass yield of the plastic part produced by virtue of the treatment process of the invention can reach up to 80 percent, and the yield is greatly increased.

Description

technical field

[0001] The invention relates to a surface treatment process of a plastic base material and a plastic part. Background technique

[0002] At present, the preparation process of plastic parts of electronic products (such as mobile phone shells) with the effect of imitating metal and matte in one body is the ordinary NCVM (non-conductive electroplating) imitating metal process combined with the 3D laser engraving process. Although the existing process makes the plastic parts obtain a better effect of imitating metal and matte, but the existing process requires 5 times of spraying + 1 time of real plating + 1 time of radium engraving. The process operation is complicated and the cost is high. The main performance The production efficiency is low due to many processes, the long cycle time of 3D laser engraving, and the laser engraving equipment is relatively expensive. In addition, the yield rate of plastic parts produced by the existing process is low, and the i...

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