Machining process for imitation metal plastic shell body

Abstract

The invention relates to a machining process for a shell body, and discloses a machining process for an imitation metal plastic shell body. The machining process for the shell body in the invention comprises the following steps: carrying out injection moulding on transparent plastic particles; sequentially spraying a first transparent UV priming paint, an imitation metal colour paint and a first transparent UV finishing paint on the female die surface of the plastic shell body; carrying out laser carving on the female die surface; and sequentially spraying a second transparent UV priming paint, carrying out non-conducting vacuum plating and spraying a second transparent UV finishing paint on the male die surface of the plastic shell body. Compared with the prior art, the imitation metal plastic shell body manufactured by the machining process disclosed by the invention is strong in surface metal effect and exquisite in pattern metal effect, has the characteristics of being excellent in wear resistance, corrosion resistance and plating thickness uniformity, high in compactness and the like, and is low in production cost, simple in procedures and high in production efficiency.

Description

technical field [0001] The invention relates to a shell processing technology, in particular to a metal-like plastic shell processing technology. Background technique [0002] In order to make the appearance of the shell more beautiful and at the same time have better use effects, such as excellent wear resistance, corrosion resistance, uniformity of coating thickness, high density, etc., plastic shells are usually made into various imitation metal shells body. Metal-like plastic shell, the shell body is a plastic shell, through different processes, the color and brightness of its appearance is similar to that of metal, so that the shell has more texture and feel, and the appearance is beautiful. [0003] In the current processing technology of the imitation metal shell, in order to make the shell have an imitation metal texture as a whole and have a strong three-dimensional bright metal pattern on the surface, the outer surface of the completed plastic shell is usually spr...

AI Technical Summary

Problems solved by technology

[0003] In the current processing technology of the imitation metal shell, in order to make the shell have an imitation metal texture as a whole and have a strong three-dimensional bright metal pattern on the surface, the outer surface of the completed plastic shell is usually sprayed with a primer , vacuum coating, the first laser engraving, topcoat, protective paint spraying, high-gloss paint spraying and the second laser engraving, the overall process is completed on the outer surface of the shell, requiring two laser engravings, the process steps are complicated, and for In order to present a three-dimensional pattern with a metallic texture, in the first and second laser engraving, the excess paint layer on the surface of the shell will be removed, and only the pattern on the metal bottom surface will be printed. During this process, laser engraving will take time Long, and most of the paint layer has been removed, causing waste of raw materials

At the same time, multiple layers are applied on the outer surface of the shell, the color control remains unchanged, and the metal effect is relatively rough and the appearance is not strong

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