Preparation method of material and/or color gradient mobile phone shell

A mobile phone shell and color gradient technology, applied in the direction of additive processing, telephone structure, etc., can solve the problems of weak bonding, separation of metal and plastic, etc., achieve the effect of reducing electromagnetic shielding interference, increasing bonding strength, and achieving a smooth transition

Inactive Publication Date: 2020-08-04
CHANGZHOU GIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the injection molding process of the mosaic structure is prone to abnormalities such as weak bonding and metal-plastic separation

Method used

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  • Preparation method of material and/or color gradient mobile phone shell
  • Preparation method of material and/or color gradient mobile phone shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] See figure 1 , the present invention comprises the following steps:

[0022] S1, prepare 316 stainless steel feeding material and black zirconia ceramic feeding material for 3D printing according to the 3D printing model; the preparation steps of 316 stainless steel feeding material and black zirconia ceramic feeding material are: 316 stainless steel powder and zirconia ceramic feeding material The powder was mixed with POM / PP in a mixer for 3 hours, and granulated by a granulator to prepare 316 stainless steel feed and zirconia ceramic feed;

[0023] S2. Green printing of mobile phone shell: According to the distribution of materials in the 3D printing model, it is divided into antenna printing area C and main body printing area A; 316 stainless steel feeding material and black zirconia ceramic feeding material are added to the 3D printing equipment with multiple hoppers , the device is a 3D printer with multi-input and single-out (that is, with multiple feeding tubes...

Embodiment 2

[0031] See figure 2 , the present invention comprises the following steps:

[0032] S1. Prepare 316 stainless steel feedstock, black zirconia ceramic feedstock and white alumina ceramic feedstock for 3D printing according to the 3D printing model; 316 stainless steel feedstock, black zirconia ceramic feedstock and white alumina ceramic feedstock The preparation steps of the ceramic feed are as follows: 316 stainless steel powder, zirconia ceramic powder and alumina ceramic powder are mixed with POM / PP in a mixer for 3 hours, and the granulator is granulated to prepare 316 stainless steel feed, oxidized Zirconium ceramic feed and alumina ceramic feed;

[0033] S2. Green printing of mobile phone shell: According to the distribution of materials in the 3D printing model, it is divided into antenna printing area C', main body printing area A' and main body printing area D'; feed 316 stainless steel, zirconia ceramics and alumina ceramics Feeding is added to a 3D printing device...

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Abstract

The invention relates to a preparation method of a material and / or color gradient mobile phone shell. The preparation method comprises the following steps: S1, preparation of various feeds for 3D printing according to a 3D printing model; S2, mobile phone shell blank printing: dividing the mobile phone shell blank into a plurality of printing areas according to the distribution of materials in the3D printing model, and carrying out continuous printing on the plurality of printing areas to obtain a mobile phone shell blank; S3, degreasing: degreasing the green body to obtain a degreased part;and S4, sintering: sintering the degreased part to form a final product. According to the invention, multiple material printing technologies and indirect printing are combined to realize integrated molding of the mobile phone shell, and the size problem caused by assembly is avoided.

Description

technical field [0001] The invention relates to a method for preparing a mobile phone case, in particular to a method for preparing a mobile phone case with a gradient material and / or color. Background technique [0002] With the acceleration of 5G, mobile phones, smart watches, etc. are undergoing product upgrades. Among them, the mobile phone shell is an important part of the mobile phone and an indispensable part of the mobile phone. The performance and appearance of the mobile phone shell have certain requirements before it can be used. In terms of performance, the requirements for the strength of the side are higher, and the requirements for magnetic shielding are stricter. The backplane and middle frame of the mobile phone must have almost no interference to electromagnetic signals. Injection molding components and antenna slot structures will become more and more complex, and the number will gradually increase, which is a big challenge for the current mobile phone ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/18C04B35/48C04B35/10C04B35/622B33Y70/10B33Y10/00B22F3/22B22F7/06
CPCB22F3/22B22F7/06B33Y10/00B33Y70/00C04B35/10C04B35/48C04B35/622C04B2235/656C04B2235/658C04B2235/9661H04M1/18
Inventor 苏绍华朱明露邬均文王明喜
Owner CHANGZHOU GIAN TECH
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