Metal-plastic composite mobile phone shell and forming method thereof

A mobile phone shell and plastic technology, which is applied to other household appliances, household components, household appliances, etc., can solve the problems of easy existence of bonding strength and bonding process, high cost of amorphous alloys, and few application occasions, so as to avoid physical problems. Effects of damage, environmental protection, good dimensional accuracy and stability

Inactive Publication Date: 2014-04-16
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method is limited to amorphous metal alloy thin films. Amorphous alloys have the disadvantages of high cost, difficulty in production, and few application occasions. Hot melt adhesives are used to achieve bonding, and there are also problems in bonding strength and bonding process.

Method used

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  • Metal-plastic composite mobile phone shell and forming method thereof
  • Metal-plastic composite mobile phone shell and forming method thereof
  • Metal-plastic composite mobile phone shell and forming method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Select a 2014 aluminum alloy rolled sheet with a thickness of 0.8mm, and machine it into a billet with a size of 120mm×70mm×0.8mm and a fillet radius of 30mm. After being stamped and formed by a special drawing die to reach the predetermined deformation, it is taken out from the die to obtain The base layer of the aluminum alloy mobile phone case with good surface quality, strong rigidity, and high precision in shape and size. Immerse the formed base aluminum alloy in sodium hydroxide solution, take it out after 10 minutes, remove surface dust, oil and other impurities, and then immerse it in low-concentration nitric acid solution for 3 minutes to remove the lye remaining on the base aluminum alloy , take it out, wash it in pure water, and dry it for later use.

[0035]Add 150g / L sulfuric acid and oxalic acid solution to the electrolytic cell 5 to configure the electrolytic solution, fix the cleaned and dried aluminum alloy plate to the anode 1 of the electrolytic cell ...

Embodiment 2

[0038] Select a magnesium alloy rolled sheet with a thickness of 0.8mm and a grade of AZ91D, machine it into a billet with a size of 120mm×70mm×0.8mm and a fillet radius of 30mm, and coat the special drawing die and the billet with polytetrafluoroethylene lubricant respectively. Then stamping and forming to obtain the base layer of the magnesium alloy mobile phone shell with good surface quality, strong rigidity, and high precision in shape and size. Place the formed base magnesium alloy in absolute ethanol and acetone solution for 15 minutes to thoroughly remove possible stains and other impurities on the surface, then clean it with pure water and dry it for use.

[0039] Micro-arc oxidation equipment was used to conduct experiments in a sodium aluminate system solution with a concentration of 9g / L. The AZ91D sample was connected to the positive pole of the power supply, and the stainless steel oxidation tank was connected to the negative pole. The process parameters were: cur...

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Abstract

The invention provides a metal-plastic composite mobile phone shell and a forming method thereof. The provided mobile phone shell has a metal surface and a plastic structure feature, wherein the external surface of the mobile phone shell is made of a sheet metal and is small in wall thickness, high in strength and beautiful in appearance; a convex structure feature of the internal surface of the mobile phone shell is made of plastics, so that the formation of a complex installation structure is facilitated, and the functional requirements on assembling and shock absorption and the like are satisfied. According to the forming method, structure features of the sheet metal and the plastic are firmly combined together and form an integral structure. Meanwhile, according to the forming method, the combination strength of plastics and metals is high, so that the mobile phone shell satisfies the assembling and application requirements of mobile phones, and also can be applied to the shell production fields of household appliances, computers and other industrial products.

Description

technical field [0001] The invention relates to the field of mobile phones, in particular to a metal-plastic composite mobile phone casing and a forming method thereof. Background technique [0002] With the continuous progress and development of science and technology, people have put forward many requirements for electronic products such as mobile phones, such as lighter weight, thinner wall thickness, and higher strength. The production of high-quality products to meet market demand has become an urgent solution in engineering. The problem. As we all know, aluminum, magnesium, titanium and other lightweight and high-strength materials have been applied in aviation, electronic technology, communication and other fields due to their high specific stiffness, specific strength and wear resistance. The use of aluminum and magnesium alloys to make mobile phone casings is a technology commonly used in the mobile phone industry in recent years. [0003] The Chinese patent with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B29C45/17B29B11/00
CPCB29C45/1418B29C45/14409B29C2045/14245B29C2045/14868B29L2031/3437
Inventor 李熹平宫宁宁汪彬王琳琳王晓明杨灿
Owner ZHEJIANG NORMAL UNIVERSITY
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