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Shape-memory aluminum matrix composite material, preparation method, mobile terminal middle frame and manufacturing method

An aluminum-based composite material and mobile terminal technology, which is applied in the field of mobile terminals, can solve problems such as easy deformation and bruising, and achieve a long-lasting and beautiful appearance

Inactive Publication Date: 2017-04-26
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a shape-memory aluminum-based composite material and its preparation method, a mobile terminal middle frame and its manufacturing method, so as to solve the problem that the mobile terminal middle frame made of aluminum alloy in the prior art is easily deformed and easily deformed when collided or dropped. bruises and other issues

Method used

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  • Shape-memory aluminum matrix composite material, preparation method, mobile terminal middle frame and manufacturing method
  • Shape-memory aluminum matrix composite material, preparation method, mobile terminal middle frame and manufacturing method
  • Shape-memory aluminum matrix composite material, preparation method, mobile terminal middle frame and manufacturing method

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preparation example Construction

[0025] The invention provides a method for preparing a shape memory aluminum matrix composite material, comprising the following steps:

[0026] Step S1: place the shape memory alloy fiber layer and the aluminum alloy plate alternately until the preset thickness is reached, and obtain the shape memory alloy fiber and aluminum alloy plate unit to be processed; wherein, each layer of shape memory alloy fiber layer includes a plurality of Shape memory alloy fibers, the diameter of the shape memory alloy fibers is 0.1 mm to 0.2 mm, and the distance between two adjacent shape memory alloy fibers is 0.5 cm to 1.0 cm;

[0027] Step S2: hot pressing the shape-memory alloy fiber and the aluminum alloy plate unit to form a metal bond between the shape-memory alloy fiber and the aluminum alloy plate to obtain the shape-memory aluminum matrix composite material.

[0028] Compared with the prior art, in the preparation method of the shape-memory aluminum matrix composite provided by the pr...

Embodiment 1

[0055] This embodiment provides a method for preparing a shape memory aluminum matrix composite material, comprising the following steps:

[0056] Step S1: alternately place the TiNi-based shape memory alloy fiber layer and the aluminum alloy plate until the preset thickness is reached, and obtain the TiNi-based shape memory alloy fiber and aluminum alloy plate unit to be processed; wherein, each layer of TiNi-based shape memory alloy fiber layer It includes a plurality of TiNi-based shape memory alloy fibers arranged at intervals, the diameter of the TiNi-based shape-memory alloy fiber is 0.1 mm, and the distance between two adjacent TiNi-based shape-memory alloy fibers is 1.0 cm. Among the TiNi-based shape-memory alloy fibers The molar ratio of Ti to Ni is 0.95:1, and the thickness of the aluminum alloy plate is 3mm;

[0057] Step S2: Hot pressing the TiNi-based shape memory alloy fiber and the aluminum alloy plate unit to obtain the shape memory aluminum matrix composite ma...

Embodiment 2

[0059] This embodiment provides a method for preparing a shape memory aluminum matrix composite material, comprising the following steps:

[0060] Step S1: alternately place the TiNi-based shape memory alloy fiber layer and the aluminum alloy plate until the preset thickness is reached, and obtain the TiNi-based shape memory alloy fiber and aluminum alloy plate unit to be processed; wherein, each layer of TiNi-based shape memory alloy fiber layer It includes a plurality of TiNi-based shape memory alloy fibers arranged at intervals. The diameter of the TiNi-based shape-memory alloy fiber is 0.2 mm, and the distance between two adjacent TiNi-based shape-memory alloy fibers is 0.5 cm. Among the TiNi-based shape-memory alloy fibers The molar ratio of Ti to Ni is 1:1, and the thickness of the aluminum alloy plate is 1.5mm;

[0061] Step S2: Hot pressing the TiNi-based shape memory alloy fiber and the aluminum alloy plate unit to obtain the shape memory aluminum matrix composite mat...

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Abstract

The invention provides a shape-memory aluminum matrix composite material, a preparation method, a mobile terminal middle frame and a manufacturing method, and relates to the field of electronic equipment and communication technology. The preparation method comprises the steps as follows: shape-memory alloy fiber layers and aluminum alloy plates are placed alternately until the preset thickness is achieved, and to-be-processed shape-memory aluminum fiber and aluminum alloy plate units are obtained, wherein each shape-memory alloy fiber layer comprises a plurality of shape-memory alloy fibers arranged at intervals, the diameter of each shape memory alloy fiber is 0.1 mm-0.2 mm, and the distance between adjacent two shape-memory alloy fibers is 0.5 cm-1.0 cm; the to-be-processed shape-memory aluminum fiber and the aluminum alloy plate units are hot pressed, so that metal bonds are formed between each shape-memory aluminum fiber and the corresponding aluminum alloy plate, and the shape-memory aluminum matrix composite material is obtained. The shape-memory aluminum matrix composite material is applied to the mobile terminal middle frame, and the mobile terminal middle frame can automatically return to the state before deformation after the fall or collision.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to a shape-memory aluminum-based composite material and a preparation method, a mobile terminal middle frame and a production method. Background technique [0002] With the improvement of living standards, people's requirements for mobile terminals such as mobile phones and tablet computers are not limited to good performance, and the requirements for ultra-thin mobile terminals are also getting higher and higher. [0003] The middle frame of the mobile terminal is a key component to realize the ultra-thinness of the mobile terminal, which is generally made of aluminum alloy; however, due to the small wall thickness of the middle frame of the mobile terminal made of aluminum alloy, the strength of the middle frame of the mobile terminal is relatively low Low. Moreover, the size and shape of the crystal grains formed by the aluminum alloy material during the preparation pro...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B15/02B32B37/02B32B37/06B32B37/10B32B38/00
CPCB32B5/02B32B15/017B32B15/02B32B37/02B32B37/06B32B37/10B32B38/00B32B2262/103B32B2307/718
Inventor 叶利
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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