Graphene enhanced aluminum -based materials, its preparation methods, aluminum alloy parts and compressors

A technology of strengthening aluminum base and graphene, which is applied in the field of aluminum alloy materials, can solve the problems of insufficient self-lubricating properties of Oldham slip ring materials, and achieve the effects of alleviating fracture, improving strength and wear resistance, and enhancing impact strength

Active Publication Date: 2021-07-13
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The main purpose of the present invention is to provide a graphene-enhanced aluminum-based material, its preparation method, aluminum alloy parts and compressors, so as to solve the problem of insufficient self-lubricating properties of the Oldham slip ring material itself for scroll compressors in the prior art question

Method used

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  • Graphene enhanced aluminum -based materials, its preparation methods, aluminum alloy parts and compressors
  • Graphene enhanced aluminum -based materials, its preparation methods, aluminum alloy parts and compressors
  • Graphene enhanced aluminum -based materials, its preparation methods, aluminum alloy parts and compressors

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preparation example Construction

[0051] In a typical implementation of the present application, a method for preparing a graphene-reinforced aluminum-based material is provided, the preparation method comprising: Step S1, providing modified graphene, the modified graphene includes a graphene body and an attached The modified material on the main surface of graphene, the modified material is TiC, B 4 One or more of C, WC, ZrC and SiC; step S2, mixing the matrix raw material, reinforcing agent and modified graphene and performing molding treatment to obtain a graphene-reinforced aluminum-based material, the reinforcing agent is selected from Cu, Mg , one or more alloys of Zn, or carbon nanotubes.

[0052] This application uses titanium, boron, tungsten, zirconium, and silicon as modifiers to form TiC, B in modified graphene 4 C, WC, ZrC or SiC, TiC, B 4 C, WC, ZrC or SiC can be used as the strengthening phase and wear-resistant phase to improve the strength and wear resistance of the aluminum substrate; in ad...

Embodiment 1

[0085] according to Figure 14 The shown process makes graphene-reinforced aluminum matrix composites, specifically:

[0086] First add the redox graphene to the ethanol solution, and use an ultrasonic wave with a power of 2Kw to disperse it for 30 minutes, then add Si powder to the above redox graphene-ethanol dispersion that has been ultrasonically dispersed, and then Use ultrasonic waves to disperse it for 60 minutes to obtain the first primary mixture. The average particle size of redox graphene is 15 μm, and the average particle size of Si powder is 30 μm; the mass ratio of Si powder to graphene is 0.4:1.

[0087] The above-mentioned first primary mixture was mixed by low-temperature ball milling. The protective medium introduced during the low-temperature ball-milling mixing process was liquid nitrogen. The speed of low-temperature ball-milling mixing was 300 r / min, and the ball-milling time was 3 hours to obtain the first mixture.

[0088] The first mixture obtained ab...

Embodiment 2

[0096] The difference with embodiment 1 is:

[0097] Add the modified graphene-Al mixture powder, Cu powder and Ti powder into the molten aluminum liquid, and stir to obtain a mixed solution, wherein the mass percentage of the modified graphene-Al mixture powder is 10%, and the mass percentage of the Cu powder The mass percentage is 2%, the mass percentage of Ti powder is 3%, and the mass percentage of aluminum liquid is 85%. The average particle diameter of the Cu powder was 30 μm, and the average particle diameter of the Ti powder was 40 μm.

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Abstract

The invention provides a graphene-enhanced aluminum-based material, a preparation method thereof, aluminum alloy parts and a compressor. The preparation method includes: step S1, providing modified graphene, the modified graphene includes a graphene body and a modified material attached to the surface of the graphene body, and the modified material is TiC, B 4 One or more of C, WC, ZrC and SiC; step S2, mixing the matrix raw material, reinforcing agent and modified graphene and performing molding treatment to obtain a graphene-reinforced aluminum-based material, the reinforcing agent is selected from Cu, Mg , one or more alloys of Zn, or carbon nanotubes. In this application, the modifier is used to improve the strength and wear resistance of the aluminum substrate; the strength and wear resistance of the base material are further improved by using the enhancer and modified graphene. When the graphene-enhanced aluminum-based material of the present application is prepared into an aluminum alloy component and applied to an Oldham slip ring of a compressor, the fracture of the convex key on the Oldham slip ring is effectively alleviated.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy materials, in particular to a graphene-enhanced aluminum-based material, a preparation method thereof, aluminum alloy parts and a compressor. Background technique [0002] The air conditioner scroll compressor is a compressor that compresses refrigerant to achieve cooling effect. The anti-rotation cross slip ring is the main component of the anti-rotation system of the air conditioner scroll compressor. During the working process of the air-conditioning scroll compressor, the anti-rotation mechanism of the scroll compressor is to satisfy the orbiting scroll around the center of the static scroll, and the Oldham slip ring also needs to perform high-speed reciprocating motion, and prevents the orbiting scroll from rotating. Disk rotation. [0003] The anti-rotation Oldham slip ring generally includes two pairs of keys that protrude from the ring and form a cross respectively. The first pair...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C32/00C22C1/02C22C1/05C22C1/10B22F9/04B22F1/00B22F3/02B22F3/10B22F3/20F04C18/02F04C29/00
CPCC22C21/00C22C32/0084C22C1/051C22C1/1015C22C1/1036B22F9/04B22F3/02B22F3/1007B22F3/20F04C18/0215F04C29/00B22F2009/043F04C2240/30B22F1/052B22F1/14C22C1/1047
Inventor 李业林徐嘉史正良陈晓晓
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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