Preparation method of mobile phone middle plate jig

A fixture and mobile phone technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of low efficiency and high cost, achieve good fluidity, reduce pores, and avoid the effect of body collapse or deformation

Active Publication Date: 2021-03-02
ANHUI HAOFANG ELECTROMECHANICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High cost and low efficiency

Method used

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  • Preparation method of mobile phone middle plate jig
  • Preparation method of mobile phone middle plate jig
  • Preparation method of mobile phone middle plate jig

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Please refer to Figure 1 to Figure 4 As shown, it shows the specific structure of a preferred embodiment of the present invention, which is a manufacturing process for the middle plate jig of a mobile phone based on metal powder injection molding, including the following steps:

[0046] Metal powder selection: choose the SUS420 gas-atomized alloy powder produced by Huzhou Huijin Material Technology Co., Ltd. and the SUS420 water-atomized alloy powder produced by Hunan Hengji Powder Technology Co., Ltd. Mixing ratio 4:6, the specific information of the gas atomization and water atomization powder is as follows:

[0047]

[0048] The binder is weighed: the binder is mainly composed of polyoxymethylene 7520, polyethylene 6098, high-density polyethylene 7200, Brazilian wax T3, and sliced ​​paraffin. 0.5 allocation, each of the binders is weighed separately and placed in full bloom. Each of the binders used in the present invention and the manufacturer are: polyoxymethy...

Embodiment 2

[0061] Embodiment 2: The similarities between this embodiment and Embodiment 1 will not be repeated, and the difference is:

[0062] According to the preparation method in Example 1, select the SUS420 gas-atomized alloy powder produced by Huzhou Huijin Material Technology Co., Ltd. and the SUS420 water-atomized alloy powder produced by Hunan Hengji Powder Technology Co., Ltd., and mix them according to the mass ratio of 5:5 , the mixing method and subsequent process conditions are carried out in strict accordance with Example 1 to obtain the final product, and the test data are shown in Table 5.

Embodiment 3

[0063] Embodiment 3: The similarities between this embodiment and Embodiment 1 will not be repeated, and the difference is:

[0064] According to the preparation method in Example 1, select the SUS420 gas-atomized alloy powder produced by Huzhou Huijin Material Technology Co., Ltd. and the SUS420 water-atomized alloy powder produced by Hunan Hengji Powder Technology Co., Ltd., and mix them according to the mass ratio of 6:4 , the mixing method and subsequent process conditions are carried out in strict accordance with Example 1 to obtain the final product, and the test data are shown in Table 5.

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Abstract

The invention discloses a preparation method of a mobile phone middle plate jig. The preparation method is characterized by comprising the following steps: selecting metal powder to obtain mixed alloypowder; weighing binders, wherein the binders are mainly composed of polyformaldehyde 7520, polyethylene 6098, high-density polyethylene 7200, Brazilian wax T3 and sliced paraffin wax, and all the binders are independently weighed and contained; performing banburying and granulating to obtain a feed which can be used for injection; performing injection molding: adding the feed into an injection machine and injecting the feed into a mold to obtain a middle plate jig injection blank; performing trimming; performing degreasing to obtain a middle plate jig degreased blank; performing sintering toobtain a middle plate jig sintered blank; performing shaping to obtain a shaped blank; performing quenching to obtain a middle plate jig quenched blank; performing tempering to obtain a middle platejig tempered blank; and obtaining the mobile phone middle plate jig through plane grinding, linear cutting of positioning holes and CNC finish machining.

Description

technical field [0001] The invention relates to the technical field of metal powder injection molding, in particular to a manufacturing method of a metal powder injection molding mobile phone mid-plate jig. Background technique [0002] In the CNC processing industry, the processing of mobile phone middle boards is inseparable from jigs. Due to the rapid development of smart phones, the replacement of mobile phones is very fast, and the demand is very large. Therefore, the demand for jigs is also very large. In order to meet the consistent product size High performance and high precision, while improving production efficiency, put forward very high requirements for fixtures. At present, the mobile phone middle plate processing jig is directly processed by CNC from the whole piece of steel, then heat treated, and then CNC finished. The cost is high and the efficiency is low. There is an urgent need for a processing technology that can not only meet the precision requirement...

Claims

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Application Information

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IPC IPC(8): B22F3/22B22F3/10B22F1/00B22F3/24
CPCB22F3/225B22F3/24B22F3/101B22F1/103B22F1/10
Inventor 杜朝晖李海存谢刚王小东杨勇
Owner ANHUI HAOFANG ELECTROMECHANICS
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