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Amorphous alloy material, amorphous alloy structural part using material and application

An amorphous alloy, zirconium-based amorphous alloy technology, applied in the field of material science, can solve problems such as affecting assembly or use, high density, product damage, etc., and achieve the effect of improving practicability, good wear resistance, and high specific strength

Inactive Publication Date: 2020-02-11
DONGGUAN YIHAO METAL MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The low density of aluminum alloy can effectively reduce the overall quality of the product to meet the requirements of lightness. However, due to the low strength, hardness and wear resistance of aluminum alloy, the shell and bracket made of it are often prone to bending. and the risk of deformation, it cannot effectively support and protect the interior of the product
At the same time, the phenomenon of electromagnetic shielding is obvious, which affects the normal use of some functions.
[0006] The strength of stainless steel is higher, but the density is higher, which will increase the overall quality of the product and reduce the consumer's sense of use
[0007] At the same time, conventional materials require multiple processes to be repeatedly processed and formed during the processing process.
Not only the processing cost is high, but also due to the characteristics of the crystal structure, there is stress concentration in the processing process, and multiple heat treatments are required to eliminate the residual stress. The deformation caused by the release of residual stress will affect the assembly or use, and even cause permanent damage to the product
[0008] On the other hand, due to the fact that conventional materials will inevitably heat up and cause warping during the process of material removal or additive processing, even through heat treatment and shaping, there will be subsequent deformation
Therefore, it is difficult to ensure the flatness requirements when making thin-walled parts, which is reflected in the product that cannot be assembled or wears out the matching result and affects the use
[0009] The upper limit of material properties limits the transformation of consumer electronics to lighter and thinner. For example, there has not yet been a folding mobile phone that can reach the mass production level, precisely because the properties of conventional materials cannot meet the two requirements of support and folding in the folding structure. Function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The general formula of amorphous alloy material is Zr 60.17 Cu 21.24 Ni 8.90 Y 0.09 al 9.60 .

[0030] The preparation method of the amorphous alloy structure comprises the following steps:

[0031] After mixing the metal raw materials according to the above ratio, in 10 -2 After heating to 1100°C under a vacuum of MPa, die-cast into a water-cooled steel mold to form a strip structure (the shape of the specific structure is the existing technology, and the size can be adjusted according to the specific component), and after cooling to room temperature, an amorphous alloy structure is obtained. pieces (shaft).

[0032] The amorphous structure of this embodiment can be used as a rotating shaft for folding mobile phones, with a hardness of 523Hv, a bending strength of 2793MPa, and a density of 6.83g / cm 3 ; The length is 130mm, the thickness is 0.5mm, and the flatness is 0.2mm. Among them, the tensile strength is converted according to DIN50150 German standard. The...

Embodiment 2

[0034]The general formula of amorphous alloy material is Zr 55 Cu 15.6 Ni 7.9 Y 3 al 18.5 .

[0035] The preparation method of the amorphous alloy structure comprises the following steps:

[0036] After mixing the metal raw materials according to the above ratio, in 10 -1 After heating to 1050°C under a vacuum of MPa, die-cast into a water-cooled steel mold to form a strip structure (the shape of the specific structure is the existing technology, and the size can be adjusted according to the specific component), and after cooling to room temperature, an amorphous alloy structure is obtained. pieces (shaft).

[0037] The amorphous structure of this embodiment can be used as a shaft for a notebook computer, with a hardness of 508Hv, a bending strength of 2724MPa, and a density of 6.83g / cm 3 ; The length is 300mm, the thickness is 0.8mm, and the flatness is 0.5mm.

[0038] Among them, the tensile strength is converted according to DIN50150 German standard. The tensile st...

Embodiment 3

[0040] The general formula of amorphous alloy material is Zr 68 Cu 14 Ni 6 Y 2 al 10 .

[0041] The preparation method of the amorphous alloy structure comprises the following steps:

[0042] After mixing the metal raw materials according to the above ratio, in 10 -2 After heating to 900°C under a vacuum of MPa, die-cast into a water-cooled steel mold to form a gear-like structure (the shape of the specific structure is the existing technology, and the size can be adjusted according to the specific component), and after cooling to room temperature, an amorphous alloy structure is obtained. pieces.

[0043] The amorphous structure of this embodiment can be used as a rotating shaft for folding mobile phones, with a hardness of 519Hv, a bending strength of 2693MPa, and a density of 6.82g / cm 3 ; The length is 110mm, the thickness is 1mm, and the flatness is 0.05mm.

[0044] Among them, the tensile strength is converted according to DIN50150 German standard. The tensile st...

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Abstract

The invention discloses an amorphous alloy material, an amorphous alloy structural part using the material and application. The general formula of the amorphous alloy material is CuaNibQcRdYe, whereina, b, c, d and e are weight percentages of corresponding elements, 7%<=a<=20%, 6%<=b<=23%, 20%<=c<=70%, 1%<=d<=21%, 0%<=e<=10%, a+b+c+d+e=1, Q is Ti and / or Zr, and R is one or more of Si, Sn, Al andB. Compared with conventional materials such as aluminium alloy and stainless steel, the amorphous alloy material has the characteristics of good strength, high hardness and good abrasion resistance,the amorphous alloy material can be applied to fabricate a support and a folding structure of a mobile phone with a folding screen, the folding screen can be effectively supported, folding action of the folding structure can be smoothly completed because of the elasticity and abrasion resistance of the amorphous alloy material, and the high flatness of the amorphous alloy material can ensure thatthe folding structure can be smoothly folded without twisting or warping when in action.

Description

technical field [0001] The invention relates to the field of material science and technology, in particular to an amorphous alloy material, an amorphous alloy structure using the material and its application. Background technique [0002] With the improvement of software speed and hardware level, existing consumer electronic products continue to develop towards lighter and thinner and more functional. While the size of consumer electronic products keeps getting smaller and lighter, they also need to be equipped with a wide variety of sensors, camera modules, fingerprint collection devices, screens and batteries with larger and larger capacities. The above situation puts forward higher requirements for the supporting materials of consumer electronics products, which not only need to be light in weight, but also have high strength to support many electronic components to be firmly installed on it, and play a role in fixing and It has a protective effect, and at the same time,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00C22C45/10H04M1/02H04M1/18
CPCC22C45/00C22C45/001C22C45/10H04M1/0214H04M1/026H04M1/185
Inventor 高宽
Owner DONGGUAN YIHAO METAL MATERIAL TECH CO LTD
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