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Housing and preparation method and terminal thereof

A technology for a shell and a primer layer, which is applied to devices for coating liquid on surfaces, metal material coating processes, coatings, etc., can solve the problems of heavy weight, high cost of middle frame or cover plate, and low processing cost. , to achieve the effect of low cost, combined with high reliability and high anti-drop performance

Active Publication Date: 2022-08-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a housing with ceramic texture, light weight and low processing cost, so as to solve the problems of high cost and heavy weight of the existing ceramic mobile phone middle frame or cover plate to a certain extent

Method used

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  • Housing and preparation method and terminal thereof
  • Housing and preparation method and terminal thereof
  • Housing and preparation method and terminal thereof

Examples

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preparation example Construction

[0062] Correspondingly, as Image 6 and Figure 7 As shown, the embodiment of the present invention also provides a preparation method of the above-mentioned shell, comprising the following steps:

[0063] S101 , providing a casing base material 111 , and the casing base material 111 includes metal and / or plastic;

[0064] S102, preparing a first primer layer 1111 on the shell substrate 111, where the first primer layer 1111 includes a first thermosetting resin;

[0065] S103, prepare a second primer layer 1112 on the first primer layer 1111, the second primer layer 1112 includes a second thermosetting resin and inorganic ceramic powder; the heat resistance temperature of the first thermosetting resin and the second thermosetting resin are both greater than or equal to 200℃;

[0066] S104 , using a thermal spraying process to prepare a ceramic coating 113 on the second primer layer 1112 to obtain a shell.

[0067] In some embodiments of the present invention, the first pri...

Embodiment 1

[0090] A preparation method of a mobile phone middle frame with ceramic appearance, comprising:

[0091] (1) The aluminum alloy mobile phone middle frame is processed and formed by the full CNC solution;

[0092] (2) At room temperature, spray the mixture of methoxysilane and isopropanol on the appearance surface of the aluminum alloy middle frame, and the thickness is controlled at 1-2 μm; The volatilization of the solvent causes a polycondensation reaction between methoxysilane and water molecules in the air, and finally hardens to form a polymethyl silicone resin to obtain the first primer layer;

[0093] (3) At room temperature, the bisphenol A epoxy resin and Al 2 O 3 The mixture of particles (mass ratio 1:4) is sprayed on the first primer layer, the thickness is controlled at 30-50 μm, and the second primer layer is obtained after standing and curing; wherein, Al 2 O 3 The particle size is controlled in the range of 20-30μm;

[0094] (4) Preparation of Al on the sec...

Embodiment 2

[0097] A preparation method of a mobile phone middle frame with ceramic appearance, comprising:

[0098] (1) The aluminum alloy mobile phone middle frame is processed and formed by the full CNC solution;

[0099] (2) At room temperature, spray the mixture of ethoxysilane and isopropanol on the appearance surface of the aluminum alloy middle frame, and the thickness is controlled at 1-2 μm; The volatilization of the solvent, the polycondensation reaction of ethoxysilane and water molecules in the air occurs, and finally hardened to form polyethyl silicone resin, and the first primer layer is obtained;

[0100] (3) under normal temperature, will contain diaminodiphenylmethane tetraglycidylamine and Al 2 O 3 The mixture of particles (mass ratio 1:2) is sprayed on the first primer layer, the thickness is controlled at 40-60 μm, and the second primer layer is obtained after standing and curing; wherein, Al 2 O 3 The particle size is controlled in the range of 10-20μm;

[0101]...

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Abstract

An embodiment of the present invention provides a casing, comprising a casing substrate, a ceramic coating disposed on the casing substrate, and a transition layer disposed between the casing substrate and the ceramic coating , the transition layer includes a second primer layer, the second primer layer includes a second thermosetting resin and inorganic ceramic powder, the heat resistance temperature of the second thermosetting resin is greater than or equal to 200 ° C, the shell base Materials include metal and / or plastic. By using a transition layer to combine the ceramic coating on the surface of the shell substrate, the bonding force between the ceramic coating and the shell substrate is effectively increased, and the bonding reliability is improved, so that the shell has both the appearance, texture and excellent quality of ceramics. Excellent scratch resistance, impact resistance and drop resistance. Embodiments of the present invention also provide a method for preparing the casing and a terminal including the casing.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of terminal casing preparation, and in particular, to a casing and a preparation method thereof, and a terminal. Background technique [0002] Ceramic mobile phone middle frame or cover plate is more and more favored by consumers due to its excellent scratch resistance and gentle feel. The raw materials of the existing ceramic mobile phone middle frame or cover plate are mainly zirconium-based ceramic systems. Compared with the traditional aluminum alloy middle frame or cover plate, zirconium-based ceramics have high requirements on the spindle, body, and tools of CNC machine tools (Computerized Numerical Control Machine, computer numerical control machine) due to their high hardness and low fracture toughness. CNC machining The time is long and the yield is also limited, which eventually leads to the high overall processing cost of the ceramic mobile phone middle frame or cover; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/18C23C4/11C23C4/134B05D7/24B05D7/26B05D1/38
CPCH04M1/18C23C4/11C23C4/134B05D7/24B05D7/26B05D7/546Y02A30/00
Inventor 花塚暁李威岳永保
Owner HUAWEI TECH CO LTD
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