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Electronic product shell manufacturing process

An electronic product and manufacturing process technology, applied in the field of electronic product shell manufacturing process, can solve the problems of poor impact resistance of glass shell, high manufacturing cost, easy wear on contact surface, etc. Good impact resistance

Pending Publication Date: 2022-05-24
BIEL OPTIC HUIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) In terms of product design: At present, the injection molding 3D product drawings designed outside the market do not consider the post-production process, and the product design structure is single, which makes it impossible to combine multiple processes such as spray coating, lamination, printing, and CNC blanking. , the product performance is single, and the design use is limited
(3) In the production of compression injection molds: At present, molds are developed outside, and the design of the mold structure is not considered comprehensively, and some key parts have not been improved.
[0003] For example: the disadvantages of the existing mobile phone shell back cover manufacturing process: (1) Process production: the metal and ceramic shells made by the existing manufacturing process have a high degree of signal interference, which is not conducive to the use of mobile phones in the future 5G market, and the glass shell has poor impact resistance. The production cost is high, and the injection molding single product shell cannot achieve multiple color effects
(2) Product process design: the structure design is single, the degree of warpage of injection molding is large, and the multi-process combination cannot be performed or the yield rate is low when multi-process combination is performed
(3) In the production of compression injection molds: the mold is not specially designed during the mold clamping and pop-up process. The traditional spring device during the mold clamping and pop-up process will easily lead to small compression, uneven force, and no mold contact surface. Additional treatment to make contact surfaces prone to wear
Therefore, the production thickness of the product will be unstable, the yield rate is low, the product thickness is too thick, and the service life of the mold is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0051] The manufacturing process of the electronic product shell, this example takes the production of the back cover of the mobile phone as an example, including the following steps:

[0052] The first step: prepare explosion-proof membrane, including:

[0053] (A) Process the basic explosion-proof film with OCA optical glue to obtain the required explosion-proof film, including:

[0054] (A1) UV wire drawing transfer printing on the basic explosion-proof film with OCA optical glue;

[0055] (A2) Place the non-OCA surface of the explosion-proof film obtained in A1 on the UV drawing mold covered with UV liquid, press the roller evenly, and transfer the texture on the UV mold to the explosion-proof film;

[0056] (A3) form a stable texture after the explosion-proof film obtained in A2 is cured by UV light irradiation;

[0057] (B) Coating the explosion-proof film after the UV transfer in A to form a coating layer;

[0058] (C) print the base color on the coating layer of the...

specific Embodiment approach 2

[0095] The main difference between the second embodiment and the first embodiment is:

[0096] (1) Specifically, in B, the method of coating the explosion-proof film after UV transfer in A is electroplating, and electroplating forms a coating layer, and the formed coating layer is a single-layer or multi-layer coating. In this embodiment, the coating layer is a single-layer coating.

[0097] (2) Specifically, the thickness of the UV liquid in A2 is 2um-28um. The thickness of the UV liquid in A2 in this embodiment is 14um.

[0098] (3) Specifically, the explosion-proof film in A3 is cured by UV light irradiation, and the curing ability of UV light is 500mJ-2000mJ. The curing ability of UV light in this implementation is 1000mJ.

[0099] (4) Specifically, the basic explosion-proof film in A includes: PET protective film layer, OCA optical adhesive layer, PET substrate layer and PET protective film layer; the thickness of OCA optical adhesive layer is 10um-125um, and the thick...

specific Embodiment approach 3

[0110] The main difference between the third embodiment and the second embodiment is: the main difference between the second embodiment and the first embodiment is:

[0111] (1) Specifically, in B, the method of coating the explosion-proof film after UV transfer in A is electroplating, and electroplating forms a coating layer, and the formed coating layer is a single-layer or multi-layer coating. In this embodiment, the coating layer is a multi-layer coating.

[0112] (2) Specifically, the thickness of the UV liquid in A2 is 2um-28um. The thickness of the UV liquid in A2 in this embodiment is 28um.

[0113] (3) Specifically, the explosion-proof film in A3 is cured by UV light irradiation, and the curing ability of UV light is 500mJ-2000mJ. The curing ability of UV light in this implementation is 2000mJ.

[0114] (4) Specifically, the basic explosion-proof film in A includes: PET protective film layer, OCA optical adhesive layer, PET substrate layer and PET protective film l...

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Abstract

According to the electronic product shell manufacturing technology, compared with an existing product, the produced electronic product shell is small in electronic signal interference, good in impact resistance and low in price, and meanwhile various shapes and colors can be manufactured according to market requirements. According to the invention, the UV wiredrawing is adopted to transfer the texture, the coating layer is adopted, and the ground color is printed on the coating layer; and the three structural layers can realize the color effects of single color, darkness, gradient color, high-brightness dazzling color, high-brightness color, high-brightness gradient color and multiple colors including but not limited to partition colors in a manner of combining the three structural layers according to the required color effect. According to the method, laser etching of the explosion-proof film, attaching of the bearing film, CCD positioning vacuum and CNC machining treatment are adopted, and the problem of a combination gap between the explosion-proof film and an electronic product shell after traditional attaching is solved. A series of problems in the manufacturing process of an existing electronic product shell are solved.

Description

technical field [0001] The invention relates to the field of manufacturing electronic product casings, in particular to a manufacturing process for electronic product casings. Background technique [0002] Most of the electronic product casings in the current market, (1) In terms of product structure, such as mobile phones, tablet computers, display screens and other casing products are metal casings, glass casings, injection-molded single-product casings, ceramic casings, etc. (2) In terms of product design: At present, the injection molding 3D product drawings designed outside the market do not consider the post-production process, and the product design structure is single, which makes it impossible to combine multiple processes such as spray coating, lamination, printing, and CNC blanking. , the product performance is single, and the design use is limited. (3) In the production of compression injection molds: At present, molds are developed outside, and the structural d...

Claims

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Application Information

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IPC IPC(8): B29D99/00
CPCB29D99/006
Inventor 杨建文吴超章朝龙杨俊黄健翔朱思伟陈振宇
Owner BIEL OPTIC HUIZHOU