Mobile phone shell and injection molding technology thereof

A technology of mobile phone shell and process, applied in the direction of coating, etc., can solve the problems of high processing cost and lack of core cost market competitiveness, and achieve the effect of simple method, shortening processing time and reducing cost

Inactive Publication Date: 2017-11-24
DONGGUAN XIANGJIANGXIN HARDWARE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for efficient production of plastic cases with improved quality by reducing costs while maintaining their strength at high temperatures during manufacturing processes.

Problems solved by technology

This patented technical problem addressed in this patents relates to replacing older metal casings for better quality appearances while reducing costs compared to current methods such as leather or vinyl chloride resin covers on top.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1 proposes a kind of injection molding process of mobile phone case, comprises the following steps:

[0017] (1) Firstly, the aluminum sheet is dried at 115°C for 26 hours until its moisture content is not higher than 0.02%.

[0018] (2) Carry out CNC processing and injection molding of the product obtained in the step (1) at a temperature of 275° C., and sequentially prepare the mobile phone case shell and the antenna slot, positioning hole, art slot, and inner cavity on the mobile phone case shell , earphone hole, USB hole, camera and flash hole. Wherein, the injection molding pressure is 90MPa-110MPa, and the mold temperature is 110°C.

[0019] (3) An annealing method is used for heat treatment to obtain a mobile phone case; wherein, the annealing rate is 3°C / min, and the heat treatment temperature is 125°C.

Embodiment 2

[0021] Embodiment 2 proposes a kind of injection molding process of mobile phone case, comprises the following steps:

[0022] (1) Firstly, the aluminum sheet is dried at 125°C for 22 hours until its moisture content is not higher than 0.02%.

[0023] (2) Carry out CNC processing and injection molding of the product obtained in the step (1) at a temperature of 300° C., and sequentially prepare the mobile phone case shell and the antenna slot, positioning hole, art slot, and inner cavity on the mobile phone case shell , earphone hole, USB hole, camera and flash hole. Wherein, the injection molding pressure is 90MPa, and the mold temperature is 110°C.

[0024] (3) An annealing method is used for heat treatment to obtain a mobile phone case; wherein, the annealing rate is 3°C / min, and the heat treatment temperature is 125°C.

Embodiment 3

[0026] Embodiment 3 proposes a kind of injection molding process of mobile phone case, comprises the following steps:

[0027] (1) Firstly, the aluminum sheet is dried at 120°C for 24 hours until the moisture content is not higher than 0.02%.

[0028] (2) Carry out CNC processing and injection molding of the product obtained in the step (1) at a temperature of 2850° C., and sequentially prepare the mobile phone case shell and the antenna slot, positioning hole, art slot, and inner cavity on the mobile phone case shell , earphone hole, USB hole, camera and flash hole. Wherein, the injection molding pressure is 90MPa-110MPa, and the mold temperature is 100°C.

[0029] (3) An annealing method is used for heat treatment to obtain a mobile phone case; wherein, the annealing rate is 5°C / min, and the heat treatment temperature is 105°C.

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PUM

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Abstract

The invention relates to a mobile phone shell and an injection molding technology thereof. The injection molding technology includes the following steps that S101, a metal sheet is dried until the moisture content is not higher than 0.02% at first; S102, a product obtained in the step S101 is subjected to CNC injection machining at the temperature of 275-300 DEG C, and a mobile phone shell body as well as an antenna slot, a location hole, a graphic groove, an inner cavity, an earphone hole, a USB hole, a camera and a flashlight hole in the mobile phone shell body can be prepared in sequence; and S103, an annealing mode is adopted for heat treatment so that the mobile phone shell can be obtained, and the heat treatment temperature is 95-125 DEG C. According to the injection molding technology of the mobile phone shell, the method is simple, energy saving and environmental protection are achieved, machining time is shortened, product cost is greatly reduced and working efficiency is improved.

Description

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Claims

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Application Information

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Owner DONGGUAN XIANGJIANGXIN HARDWARE PROD
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