A kind of pvd spraying homogeneous plastic case and preparation method thereof

Abstract

The present invention relates to cell phone case and a manufacturing method thereof, and especially relates to a physical vapor deposition (PVD) sprayed common-body plastic housing and a manufacturing method thereof. The PVD sprayed common-body plastic housing is a metal alloy cell phone case with injection molding being nested inside a frame of the case, and PVD treatment is performed on a side frame of the metal alloy cell phone case. The manufacturing method comprises the steps of die-cast formation of the metal alloy cell phone case; nested injection molding of the metal alloy; primary spraying of a primer; primary polishing; secondary spraying of the primer; secondary polishing; primer spraying; colored paint spraying; finishing coat spraying; CNC processing of the side frame; and PVD processing of the side frame. A plastic material is injected inside the alloy, so the problem that the cell phone case cannot be completely made of an alloy because of restrictions of parts of processing techniques of the alloy is solved; and the surface of the alloy is sprayed, and PVD is carried out on the basis of the spraying, so the defects that the alloy is easy to oxidize and is not attractive are overcome, the wear-resisting property of corners of the housing is enhanced, and combination of attractiveness and durability is realized.

Description

technical field [0001] The invention relates to a mobile phone case and a preparation method thereof, in particular to a PVD spray-coated homogeneous plastic case and a preparation method thereof. Background technique [0002] PVD (Physical Vapor Deposition), refers to the use of physical processes to achieve material transfer, the process of transferring atoms or molecules from the source to the surface of the substrate. Its function is to spray some particles with special properties (high strength, wear resistance, heat dissipation, corrosion resistance, etc.) on the matrix with lower performance, so that the matrix has better performance. PVD basic methods: vacuum evaporation, sputtering, ion plating (hollow cathode ion plating, hot cathode ion plating, arc ion plating, active reactive ion plating, radio frequency ion plating, DC discharge ion plating). [0003] At present, the materials of mobile phone casings are mostly plastic, but pure plastic casings have the disadv...

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problem that the mobile phone shell cannot use all alloys due to the limitation of part of the processing technology of the alloy by injecting plastic materials inside the alloy; sprays the surface of the alloy, and performs PVD on the basis of spraying to solve the problem that the alloy is easy to oxidize and not beautiful defects, enhance the wear resistance of the corners of the shell and achieve a combination of beauty and durability