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Mobile phone middle frame manufacturing process

A manufacturing process and a technology for the middle frame of a mobile phone, which is applied in the field of metal processing and can solve the problems of low processing cost and the like

Active Publication Date: 2017-11-21
DONGGUAN CHANGYING PRECISION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a mobile phone middle frame manufacturing process with low processing cost and which can effectively solve the problem of thermal expansion of the outer frame during die-casting processing

Method used

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  • Mobile phone middle frame manufacturing process
  • Mobile phone middle frame manufacturing process
  • Mobile phone middle frame manufacturing process

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Experimental program
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Embodiment Construction

[0021] see figure 1 , figure 2 Shown is the outer frame 10 of the middle frame of the mobile phone that needs to be die-casted. The outer frame 10 is formed by forging or extrusion and processed by CNC. The outer frame 10 does not rule out being processed by other processes.

[0022] The outer frame 10 is approximately a closed rectangular structure, including an outer side 11 , an inner side 12 opposite to the outer side 11 , and upper and lower sides 13 between the inner side 12 and the outer side 11 . The inner surface 12 of the outer frame 10 is inwardly processed to form a protrusion 14, and the protrusion 12 includes a thinner protrusion 141 and a thicker protrusion 143, and the thinner and thicker protrusions 141, 143 The thicknesses are all smaller than the thickness of the outer frame 10 itself. A through hole 142 is formed on the thinner protruding portion 141, and the through hole 142 opens toward the inner side, and a groove-like structure 144 is formed in the ...

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Abstract

The invention provides a mobile phone middle frame manufacturing process. The manufacturing process comprises the steps that 1 a metal outer frame is provided; 2 the dilation dimension of the metal outer frame after heating is conducted is measured, and a positioning slide block of a die is designed according to the dilation dimension; 3 the outer frame is heated and placed into a cavity of the die to conduct die assembly; 4 metal solutions are poured into the cavity of the die; 5 cooling and die-opening are conducted and a die casting body is formed in the inner side face of the outer frame. The mobile phone middle frame manufacturing process can effectively solve a deformation problem of the metal outer frame due to heating expansion.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a manufacturing process for a middle frame of a mobile phone. Background technique [0002] At present, smartphones, especially high-end smartphones, use metal middle frames and back covers to meet consumers' needs for metal textures. However, there are the following problems in the manufacture of metal middle frames. If forging is used in CNC processing as a whole Manufacturing, the manufacturing cost is too high, and it is difficult for general customers to accept. However, if the die-casting method is used as a whole for production, the outer surface of the finished mobile phone middle frame is not dense enough, and there will be loose sand holes, making the appearance unacceptable. [0003] Patent application No. 201110141704.7 of the People's Republic of China discloses a manufacturing process combining forging and die-casting, that is, the outer frame of the middle frame is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/02B22D17/22
Inventor 卫凡
Owner DONGGUAN CHANGYING PRECISION TECH CO LTD
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