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Mobile phone case and preparation method thereof

A mobile phone shell and metal shell technology, applied in the structure of telephones, other household appliances, applications, etc., can solve the problem of not being able to achieve the ideal waterproof effect

Active Publication Date: 2019-12-20
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current waterproof solution using waterproof glue or sealing ring cannot achieve the ideal waterproof effect
[0003] Therefore, the current metal mobile phone case still needs to be improved

Method used

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  • Mobile phone case and preparation method thereof
  • Mobile phone case and preparation method thereof
  • Mobile phone case and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Pretreatment: Cut a commercially available 3mm thick 6063 aluminum alloy plate into a rectangular piece of 15mm*80mm, put it into a polishing machine for grinding, and then wash it with absolute ethanol, and then dip the aluminum alloy substrate in 40g / L sodium hydroxide aqueous solution, take it out after 2 minutes and rinse it with deionized water to obtain a pretreated aluminum alloy sheet;

[0036] 2. The first anodizing treatment: Put the above-mentioned aluminum alloy sheet as an anode into a 18°C ​​sulfuric acid anodizing tank with a concentration of 180g / L, anodize at 20V for 10min, and blow dry;

[0037] 3. The second anodizing treatment: Put the above-mentioned aluminum alloy sheet as an anode into a 18°C ​​phosphoric acid anodizing tank with a concentration of 50g / L, anodize at 16V for 10min, and blow dry;

[0038] 4. Hole expansion treatment: prepare 10g / L sodium dihydrogen phosphate aqueous solution in a beaker, soak the obtained aluminum alloy sheet in ...

Embodiment 2

[0041] An aluminum alloy resin composite was prepared according to the same method as in Example 1, except that the voltage in the first anodizing process was 12V.

Embodiment 3

[0043] An aluminum alloy resin composite was prepared according to the same method as in Example 1, except that the concentration of sulfuric acid in the first anodizing process was 150 g / L.

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Abstract

The invention provides a mobile phone shell and a production method thereof. The mobile phone shell comprises a metal shell body and a plastic part combined with the metal shell body, wherein an oxidefilm layer is arranged on the metal surface, in contact with the plastic part, of the metal shell body; the oxide film layer comprises an inner layer, an intermediate layer and an outer layer which are sequentially arranged from inside to outside; the inner layer is provided with first micropores of which the particle size is 20-80 nanometers; the intermediate layer is provided with second micropores of which the particle is 10-100 nanometers; the outer layer is provided with third micropores of which the particle size is 200-2000 nanometers; adjacent first micropores, second micropores and third micropores intercommunicate; the first micropores, the second micropores and the third micropores are filled with part of the plastic part. The mobile phone shell has ideal corrosion resistance,abrasion resistance and waterproofing performances.

Description

technical field [0001] The invention relates to the technical field of mobile phones, in particular to a mobile phone case and a preparation method thereof. Background technique [0002] In order to meet the needs of communication functions, most of the mobile phone shells currently on the market are designed with non-metallic materials that can be penetrated by radio frequency, such as plastics, glass, ceramics, etc. However, metals have been loved by humans since ancient times. Due to its beautiful appearance, more and more materials are designed for the shell of mobile phones. In order to meet the waterproof function requirements of metal mobile phone shells, most of the shells of mobile phones on the market are designed with waterproof glue or sealing Ring solutions to prevent water seepage at the junction, such as metal + waterproof glue + metal or plastic for waterproofing, or metal + sealing ring + metal or plastic for waterproofing. However, the current waterproof s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/12C25D11/24H04M1/18B29C45/14B29L31/34
CPCB29C45/14B29C2045/14868B29L2031/3437C25D11/12C25D11/24H04M1/18
Inventor 孙剑吴英远陈梁
Owner BYD CO LTD
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