Post processing technology of mobile phone rear cover

Abstract

The invention discloses a post processing technology of a mobile phone rear cover. The post processing technology of the mobile phone rear cover is achieved through following steps: 1) completing roughing through polishing: sticking a 600 grit abrasive paper to a polishing disk of a first handheld polisher in the polishing; 2) achieving smoothing through polishing: sticking a 1000 grit scouring pad of the 3M (Minnesota mining and manufacturing) company to a polishing disk of a second handheld polisher in the smoothing; 3) firstly, placing a smoothed part obtained in the step 2) on a net screen plate, and then feeding the net screen plate into a first sand blasting chamber so as to perform sand blasting on the side face of the smoothed part; 4) feeding the part together with the net screen plate into a second sand blasting chamber after the sand blasting is performed on the side face of the part in the step 3) so as to perform sand blasting on the reverse side of the part; 5) firstly, turning the part on the net screen plate by 180 degrees after the sand blasting treatment is performed on the reverse side of the part, and then sending the net screen plate into a third sand blasting chamber so as to perform sand blasting on the obverse side of the part. Compared with the prior art, no cleaning treatment is needed in the whole process of the post processing technology of the mobile phone rear cover, treatment procedures are simplified, time and labor are saved, manufacture cost is reduced, and simultaneously the mobile phone rear cover does not need to be fixed by a special clamp in the sand blasting, the sand blasting can be achieved in all directions by simply placing the mobile phone rear cover, and operation is simple and easy.

Description

Technical field [0001] The invention relates to a process, in particular to a process for processing the back cover of a mobile phone. Background technique [0002] Traditionally sold mobile phone back covers are generally made of plastic, and various effects can be achieved by spraying various paints on the plastic shell. However, the plastic has poor wear resistance and insufficient strength, making the front of the plastic phone back cover (traditional The outer side of the back cover of the mobile phone is the front side, and the inner side is the back side.) It is easy to be damaged or scratched. In order to improve the wear resistance and strength of the back cover of the mobile phone, it is also made of stainless steel. The back cover is too cumbersome to hold in the hand. As a result, a metal back cover made of metal has appeared on the market. Because aluminum has the advantages of light weight, high wear resistance, good feel, and high strength, the metal back of the mo...

AI Technical Summary

Problems solved by technology

[0002] Traditionally sold mobile phone back covers are generally made of plastic, and various effects can be achieved by spraying various paints on the plastic shell, but the wear resistance of plastic is poor and the strength is not enough, so that the front of the plastic mobile phone back cover (traditional The outer side of the back cover of the mobile phone is the front, and the side facing inward is the back) is easy to be damaged or scratched. In order to improve the wear resistance and strength of the back cover of the mobile phone, it is also made of stainless steel, but this kind of stainless steel mobile phone The back cover is too bulky to hold in the hand. Therefore, there is a metal back cover made of metal material on the market. Because aluminum has the advantages of light weight, high wear resistance, good hand feeling, and high strength, the metal back cover of the mobile phone The cover is generally an aluminum back cover, and the aluminum back cover needs to be post-processed before it can be used.

[0003] The post-treatment process of the aluminum back cover of the current mobile phone is: first use polishing wax to polish the surface of the aluminum back cover, and then perform grinding treatment after the polishing treatment. After the grinding treatment, the wax on the surface of the aluminum back cover is cleaned, and then The surface of the aluminum back cover is fixed by a fixture, and the surface of the aluminum back cover is sandblasted; in this post-treatment process, since polishing wax is used for polishing, sandblasting cannot be performed directly after grinding, and a cleaning is required before sandblasting. The wax on the surface of the cover can only be washed off, but the post-treatment process of the aluminum back cover has the disadvantages of many procedures and long time consumption

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