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Vibration attenuation type aluminum alloy and preparation method thereof

A technology of aluminum alloy and aluminum material, applied in the alloy field, can solve the problems of poor processability and high brittleness of the alloy, and achieve the effects of good damping and vibration reduction performance, easy operation and easy processing

Active Publication Date: 2016-06-08
东莞佛亚铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to exert the vibration damping effect, the existing zinc-aluminum-based vibration damping alloy usually needs to add a certain amount of silicon, but the addition of silicon makes the alloy's machinability worse, and there is a problem of high brittleness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In the embodiment of the present invention, a vibration-damping aluminum alloy has the following components by weight percentage: Mn1.5%, Co0.01%, Cr2.1%, Sn4.0%, Ni0.7%, Zn2.5% , Mg5.0%, Cu1.0%, Re0.08%, La0.07%, and the balance is Al. Put the aluminum material into the furnace, raise the temperature to 670°C to melt it into a liquid, then add other raw materials, raise the temperature to 1100°C, and keep it warm for 2 hours; then die-cast the mixed liquid, quickly air-cool after die-casting, and then keep it at 180°C After 3 hours of aging treatment, the vibration-damping aluminum alloy can be obtained.

Embodiment 2

[0015] In the embodiment of the present invention, a vibration-damping aluminum alloy has the following components by weight percentage: Mn3.0%, Co0.05%, Cr3.5%, Sn6.5%, Ni2.0%, Zn3.8% , Mg6.5%, Cu2.5%, Re0.08%, La0.07%, and the balance is Al. Put the aluminum material into the furnace, raise the temperature to 690°C to melt it into a liquid, then add other raw materials, raise the temperature to 1200°C, and keep it warm for 3 hours; then die-cast the mixed liquid, quickly air-cool after die-casting, and then keep it warm at 250°C After 5 hours of aging treatment, the vibration-damping aluminum alloy can be obtained.

Embodiment 3

[0017] In the embodiment of the present invention, a vibration-damping aluminum alloy has the following components by weight percentage: Mn1.6%, Co0.02%, Cr2.2%, Sn4.1%, Ni0.8%, Zn2.6% , Mg5.1%, Cu1.1%, Re0.08%, La0.07%, and the balance is Al. Put the aluminum material into the furnace, raise the temperature to 675°C to make it melt into a liquid, then add other raw materials, raise the temperature to 1110°C, and keep it warm for 2.1 hours; then die-cast the mixed liquid, quickly air-cool after die-casting, and then 190°C After the aging treatment of 3.5h heat preservation, the vibration-damping aluminum alloy can be obtained.

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Abstract

The invention discloses a vibration attenuation type aluminum alloy and a preparation method of the vibration attenuation type aluminum alloy. The vibration attenuation type aluminum alloy comprises, by weight percentage, 1.5%-3.0% of Mn, 0.01%-0.05% of Co, 2.1%-3.5% of Cr, 4.0%-6.5% of Sn, 0.7%-2.0% of Ni, 2.5%-3.8% of Zn, 5.0%-6.5% of Mg, 1.0%-2.5% of Cu, 0.08% of Re or less, 0.07% of La or less and the balance Al. An aluminum material is placed in a smelting furnace, the temperature is raised to 670 DEG C-690 DEG C to melt the aluminum material into liquid, then other materials are added, and the temperature is raised to 1,100 DEG C-1,200 DEG C and kept for 2 hours-3 hours; and then, die casting is conducted on the liquid mixture, quick air cooling is performed after die casting, aging treatment that the temperature is kept at 180 DEG C-250 DEG C for 3-5 hours is carried out, and then the vibration attenuation type aluminum alloy is obtained. The vibration attenuation type aluminum alloy does not contain silicon, is easy to machine and cut and not prone to breakage and has good damping vibration attenuation performance and creep resistance. The preparation process is simple, easy to operate and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a vibration-damping aluminum alloy and a preparation method thereof. Background technique [0002] Vibration-damping alloy is a special metal material with large damping (internal friction) that can quickly attenuate vibration. The damping alloy is used for shock absorption and noise prevention, which has the advantages of simple structure, small size and light weight. Commonly used damping alloys are divided into: (1) homogeneous metals, including complex phase, ferromagnetic, dislocation and twinning; (2) composite plates, including unconstrained and constrained; (3) Powdered metals, including non-ferrous metals and ferrous metals. Damping alloys have been used in industries such as aerospace, ships, automobiles, railways, household appliances, and military vehicles. [0003] Compared with traditional cast iron vibration damping materials, zinc-aluminum alloys are widely used...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C21/00
CPCC22C21/003C22C21/06
Inventor 张健锋
Owner 东莞佛亚铝业有限公司
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