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Mobile phone rear cover with metal texture and preparation method thereof

A mobile phone back cover, metal texture technology, applied in branch equipment, telephone structure, telephone communication and other directions, can solve the problem of not being able to solve the problem of heating well, not improving the efficiency of radio transmission, etc., to achieve high yield and maintain texture And the effect of touch and simple processing technology

Active Publication Date: 2017-05-31
广东百工新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is to obtain the metal oxide film through anodic oxidation, the thickness of the metal film is 20-50 μm, the thickness of the metal oxide film is 10-20 μm, and the metal oxide film only accounts for 40-50% of the metal film, which can only guarantee that it will not affect Radio signals, but it cannot improve the efficiency of radio transmission, nor can it solve its heating problem well

Method used

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  • Mobile phone rear cover with metal texture and preparation method thereof

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preparation example Construction

[0095] Correspondingly, the present invention also discloses a method for preparing a mobile phone back cover with a metallic texture, including:

[0096] (1) The raw materials required for preparing the back cover of the mobile phone are mixed and pulped, and the ceramic casting plain sheet is obtained through a casting machine.

[0097] (2) Laminate the cast ceramic sheets.

[0098] (3) Laminating the laminated ceramic casting sheets.

[0099] Preferably, the stacked green sheets are laminated by a press, the pressure of the press is ≤ 15 MPa, and the above pressure is used to laminate the green sheets, so that the layers can be well bonded Together, and make the shape and size of the stacked blanks within a reasonable range, so that the isostatic pressing treatment can be performed later.

[0100] (4) Perform isostatic pressing on the laminated ceramic cast plain sheet.

[0101] Preferably, the pressure of the isostatic pressing treatment is 13-60 MPa.

[0102] (5) Debi...

Embodiment 1

[0111] (1) Formula:

[0112] (1), mobile phone back cover substrate

[0113] Zirconia 50 parts

[0114] Aluminum oxide 1 part

[0115] Yttrium oxide 0.1 part

[0116] Titanium oxide 0.1 part

[0117] 1 part adhesive

[0118] Dispersant 0.1 parts

[0119] Plasticizer 0.1 parts

[0120] 10 parts of solvent.

[0121] (2) The metal material is aluminum alloy.

[0122] (2) Preparation method:

[0123] (1) Mix and pulp the raw materials required for the preparation of the back cover of the mobile phone, and use a casting machine to obtain a ceramic cast plain sheet;

[0124] (2) Laminate ceramic casting sheets;

[0125](3) Laminating the laminated ceramic casting sheets;

[0126] (4) Perform isostatic pressing on the laminated ceramic casting sheet;

[0127] (5) Debinding the isostatically pressed ceramic casting sheet;

[0128] (6) Sintering the cast ceramic sheet after debinding treatment to obtain a ceramic sheet;

[0129] (7) Spray the metal material on the surface...

Embodiment 2

[0132] (1) Formula:

[0133] (1), mobile phone back cover substrate

[0134] Zirconia 60 parts

[0135] Aluminum oxide 2 parts

[0136] Yttrium oxide 0.2 parts

[0137] Titanium oxide 0.2 parts

[0138] Binder 5 parts

[0139] Dispersant 2 parts

[0140] 2 parts plasticizer

[0141] 20 parts of solvent.

[0142] (2) The metal material is titanium alloy.

[0143] (2) Preparation method:

[0144] (1) Mix and pulp the raw materials required for the preparation of the back cover of the mobile phone, and use a casting machine to obtain a ceramic cast plain sheet;

[0145] (2) Laminate ceramic casting sheets;

[0146] (3) Laminating the laminated ceramic casting sheets;

[0147] (4) Perform isostatic pressing on the laminated ceramic casting sheet;

[0148] (5) Debinding the isostatically pressed ceramic casting sheet;

[0149] (6) Sintering the cast ceramic sheet after debinding treatment to obtain a ceramic sheet;

[0150] (7) Spray the metal material on the surface ...

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Abstract

The invention disclose a mobile phone rear cover with a metal texture, which comprises a mobile phone rear cover matrix and a metal compound coating. A mainboard electronic component is arranged in the mobile phone rear cover matrix, and the mobile phone rear cover matrix is prepared from zirconia; the metal compound coating is prepared by the following method of: spraying a metal material on the surface of the mobile phone rear cover matrix by magnetron sputtering, thermal spraying of electric arc heat, supersonic thermal spraying or plasma thermal spraying so as to form a metal thin film; and oxidizing the metal thin film by corrosion treatment so as to form a metal compound, wherein a thickness of the metal compound occupies for 70 to 80% of a thickness of the metal thin film. Correspondingly, the invention further discloses a preparation method of the mobile phone rear cover. By adopting the mobile phone rear cover and the preparation method thereof, which are disclosed by the invention, not only is an effect that appearance of a metal housing has the unique texture and touch sense of metal achieved, but also a thickness of a mobile phone is reduced by one fifth, cost of the mobile phone is reduced by two thirds, and radio transmission efficiency of the mobile phone is improved by over 2 times.

Description

technical field [0001] The invention relates to the field of mobile phone back covers, in particular to a mobile phone back cover with a metallic texture and a preparation method thereof. Background technique [0002] From the first mobile phones in the field to the current 4G smartphones, extending to the upcoming 5G era, the functions of mobile phones are becoming more and more powerful. The back cover of the mobile phone started from plastic at the beginning, and now plastic, glass, metal and other materials coexist. The diversification of the back cover of the mobile phone meets the needs of different customers. Moreover, in most cases, based on the characteristics of low cost and strong plasticity of plastics, they are mainly used in low-end and mid-range mobile phones. Glass is mainly used in the medium and high-end stages. As for metal, based on its unique texture and touch, it is mainly used in high-end mobile phones. In addition, its process is complicated and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02C04B35/49C04B35/622C04B41/88
CPCC04B35/49C04B35/622C04B41/009C04B41/5194C04B41/88C04B2235/3217C04B2235/3225C04B2235/3232H04M1/0202H04M1/0283C04B41/4529
Inventor 张乾方李毅马文珍张耀辉
Owner 广东百工新材料科技有限公司
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