Wear-resistant aluminum alloy

An aluminum alloy and aluminum-silicon alloy technology, applied in the field of wear-resistant aluminum alloys, can solve the problems of complex processing technology, poor mechanical properties at room temperature, and small thermal expansion coefficient, and achieve simple preparation process, good wear resistance, and good mechanical properties at room temperature. Effect

Inactive Publication Date: 2015-03-25
CHANGSHU JINGCHENG ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The eutectic aluminum-silicon alloy developed this year has a silicon content of more than 12%, and has the characteristics of small thermal expansion coefficient, good density and volume stability, strong thermal conductivity, and good wear resistance. However, the processing technology of this type of alloy is complicated and requires Electrochemical treatment is performed on aluminum-silicon alloys to etch the aluminum on the surface and retain the silicon in the matrix, and the mechanical properties of this type of alloy at room temperature are poor, especially the elongation, which is generally only about 1%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A wear-resistant aluminum alloy, which is a new type of aluminum-silicon alloy, which includes raw material components and the mass percentage of each component: silicon powder: 15%; copper powder: 0.2%; magnesium powder: 1.8%; titanium powder: 0.5% %; Manganese powder: 0.3%; Carbon powder: 0.05%; Chromium powder: 0.4%; Iron powder: 0.9%; Aluminum powder: 80.83%; Unavoidable impurities: 0.02%; The elements are mixed, pressed into ingots, and sintered at high temperature.

[0014] Wherein, the average particle diameter of each raw material component is 3-5 μm.

Embodiment 2

[0016] A wear-resistant aluminum alloy, which is a new type of aluminum-silicon alloy, which includes raw material components and the mass percentage of each component: silicon powder: 17%; copper powder: 0.4%; magnesium powder: 3.2%; titanium powder: 0.9% %; Manganese powder: 0.5%; Carbon powder: 0.08%; Chromium powder: 0.3%; Iron powder: 1.2%; Aluminum powder: 76.4%; Unavoidable impurities: 0.02%; The elements are mixed, pressed into ingots, and sintered at high temperature.

[0017] Wherein, the average particle diameter of each raw material component is 3-5 μm.

Embodiment 3

[0019] A wear-resistant aluminum alloy, which is a new type of aluminum-silicon alloy, which includes raw material components and the mass percentage of each component: silicon powder: 18%; copper powder: 0.4%; magnesium powder: 3.6%; titanium powder: 0.7% %; Manganese powder: 0.4%; Carbon powder: 0.59%; Chromium powder: 0.7%; Iron powder: 0.8%; Aluminum powder: 74.8%; Unavoidable impurities: 0.01%; The elements are mixed, pressed into ingots, and sintered at high temperature.

[0020] Wherein, the average particle diameter of each raw material component is 3-5 μm.

[0021] The invention discloses a wear-resistant aluminum alloy, which is based on aluminum powder and added alloy components such as silicon, copper, magnesium, titanium, magnesium, carbon, chromium and iron in a reasonable ratio, mixed and pressed into an ingot, It is sintered at high temperature, and the preparation process is simple. The aluminum alloy produced has better wear resistance and corrosion resistan...

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PUM

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Abstract

The invention discloses a wear-resistant aluminum alloy which is a novel aluminum-silicon alloy and comprises the following raw material components in percentage by mass: 15-18% of silicon powder, 0.1-0.4% of copper powder, 1.5-4% of magnesium powder, 0.5-1% of titanium powder, 0.2-0.6% of manganese powder, 0.05-0.1% of carbon powder, 0.3-0.7% of chromium powder, 0.8-1.2% of iron powder, and the balance of aluminum powder and inevitable impurities. The novel aluminum-silicon alloy is prepared by mixing the elements, pressing into an ingot and performing high-temperature sintering. By virtue of the manner, the wear-resistant aluminum alloy disclosed by the invention has better wear resistance and corrosion resistance compared with a eutectic aluminum-silicon alloy, has good normal-temperature mechanical properties at the same time, and can be widely used in the machining industry.

Description

technical field [0001] The invention relates to the field of alloy materials, in particular to a wear-resistant aluminum alloy. Background technique [0002] With the rapid development of science and technology and the national economy, the operating speed of mechanical equipment is getting higher and higher, and the speed of friction parts is getting faster and faster, and its service life is becoming more and more affecting modern equipment, especially high-speed operation An important factor in the production efficiency of the automatic production line. Therefore, the study of wear and the continuous development of new wear-resistant materials are topics that need to be discussed forever. [0003] Aluminum-silicon alloy has a series of advantages in terms of mechanical properties and casting properties, and is currently the most widely used type of cast aluminum alloy. The eutectic aluminum-silicon alloy developed this year has a silicon content of more than 12%, and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02
CPCC22C21/02
Inventor 赖文瑞
Owner CHANGSHU JINGCHENG ALUMINUM
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