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A high-strength shell of a mobile communication device

A high-strength technology for mobile communication equipment, applied in the field of titanium-aluminum alloy shell reinforcement blocks, can solve the problems of high cost, mobile phone bending, unsatisfactory hardness and stiffness, etc., and achieves improved yield strength, improved elastic modulus, microscopic The effect of uniform and stable tissue

Inactive Publication Date: 2017-03-29
东莞市渌通机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is magnesium alloy, aluminum alloy or hard plastic, its hardness and rigidity are not very ideal, which makes it easy for users to bend and deform the mobile phone during use.
At present, some mobile communication devices adopt the method of using reinforcement blocks inside the mobile phone case, but the reinforcement blocks are mostly made of stainless steel or ordinary titanium-aluminum alloy, which is difficult to ensure the dual requirements of rigidity and thinness
There are also some technologies that use amorphous alloys as reinforcement blocks, which greatly increases the overall cost
As users' requirements for the performance and durability of mobile terminal equipment are also increasing, the demand for rugged mobile phones has increased a lot, but the cost of achieving waterproof and dustproof effects through sealing technology is also relatively high. If the casing or reinforcing block The improvement of corrosion resistance will prolong the service life of mobile communication terminal equipment in extreme environments. Therefore, it is urgent to invent a mobile phone shell that is relatively low in cost but can meet multiple requirements such as rigidity, lightness, and corrosion resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-strength shell of a mobile communication device, the shell of the mobile communication device is provided with a reinforcement block, the reinforcement block is a titanium-aluminum alloy, and the alloy elements of the titanium-aluminum alloy are calculated by weight percentage: Al: 7.2%, Nb: 5.2%, Zr: 2.1%, Mo: 2.9%, Fe: 0.5%, Si: 0.05%, La: 0.03%, and the balance is Ti and unavoidable impurities.

[0022] Through measurement, the modulus of elasticity of the reinforcing block is 40GPa, the yield strength is 560MPa, and the elongation is 12%.

Embodiment 2

[0024] A high-strength shell of a mobile communication device, the shell of the mobile communication device is provided with a reinforcing block, the reinforcing block is a titanium-aluminum alloy, and the alloy elements of the titanium-aluminum alloy are calculated by weight percentage: Al: 6.2%, Nb: 5.0%, Zr: 1.1%, Mo: 3.0%, Fe: 0.3%, Si: 0.05%, La: 0.029%, the balance is Ti and unavoidable impurities, the titanium aluminum alloy adopts vacuum self-consumption Arc furnace smelting, casting and molding by precision casting, after casting into a semi-finished reinforcement block, the following heat treatment steps are carried out: (1) Annealing: put the semi-finished reinforcement block after casting into a resistance furnace, heat to 790 ° C, and hold for 51 minutes. Then the furnace is cooled to room temperature; (2) Aging: Put the annealed semi-finished reinforcement block into an aging furnace, heat to 320°C, and after aging for 5.2 hours, slowly cool to room temperature; (...

Embodiment 3

[0028] The titanium-aluminum alloy of the composition described in Example 1 is cast and formed by precision casting, and after being cast into a semi-finished reinforcement block, the following heat treatment steps are performed: (1) Annealing: the semi-finished reinforcement block after casting is placed in a resistance furnace, Heat to 130°C, hold for 6 minutes, continue to heat to 360°C, hold for 12 minutes, then continue to heat to 810°C, hold for 50 minutes, and then cool the furnace to room temperature; (2) Aging: Put the semi-finished reinforcement block after annealing into the aging furnace , heated to 320°C, aged for 5.5 hours, then slowly cooled to room temperature; (3) Cryogenic: put the semi-finished reinforcement block after aging treatment into a cryogenic box for cryogenic treatment, the cryogenic temperature is -120°C, deep The heat preservation time of cold treatment is 22 minutes, and it returns to room temperature after the heat preservation is completed; (...

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Abstract

Disclosed is a high-strength shell of mobile communication equipment. Due to the fact that a reinforcing block is arranged on the shell of the mobile communication equipment, and alloy components and a preparation method of the reinforcing block are improved, the corrosion resistance, the elastic modulus, strength and other performance of the shell of the mobile communication equipment are greatly improved, and the requirement for the strength, low weight and other comprehensive performances of the shell of the mobile communication equipment is met.

Description

technical field [0001] The invention belongs to the field of mobile communication and the field of alloys, and in particular relates to a titanium-aluminum alloy casing reinforcement block of a high-strength casing of a mobile communication device. Background technique [0002] At present, the casings of mobile communication devices, especially smartphones, are mostly made of magnesium alloy, aluminum alloy or plastic. However, whether it is magnesium alloy, aluminum alloy or hard plastic, its hardness and rigidity are not very ideal, which makes it easy for users to bend and deform the mobile phone during use. At present, some mobile communication devices adopt the method of using reinforcement blocks inside the mobile phone case, but the reinforcement blocks are mostly made of stainless steel or ordinary titanium-aluminum alloy, which is difficult to meet the dual requirements of rigidity and thinness. There are also some technologies that use amorphous alloys as reinforc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22F1/18
Inventor 郭策
Owner 东莞市渌通机械设备有限公司
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