Porous composite material containing vibration damping aluminum alloy

Abstract

The invention provides a vibration reduction aluminum alloy having light weight, high performance of amortization and low cost and a poriferous composite material of corresponding matrix.The vibration reduction aluminum alloy comprises the following components by weight: Zn of 6-9%, Sn of 3-5%, Pb of 2.5 and Al of the rest.The poriferous composite material containing the vibration reduction aluminum alloy is a metallic matrix composite material containing inorganic nonmetallic phase mixing granules, wherein, the metallic matrix is the anti-corrosion magnesium alloy. The inorganic nonmetallic phase mixing granules are zeolite having micropores and expanded vermiculite, the size of the zeolite and the expanded vermiculite is 0.5mm - 1mm, volume percentage of the inorganic nonmetallic phase mixing granules in the poriferous composite material is 20-50%, the weight ratio of the zeolite and the expanded vermiculite is 1:9-9:1.

Description

1. Technical field

[0001] The invention relates to a cast aluminum alloy with good damping function and a porous composite material. 2. Background technology

[0002] Aluminum alloys are widely used in the manufacture of industrial products because of their high specific strength and high specific stiffness. However, the vibration damping function of the existing common aluminum alloy is relatively poor. The current research on vibration-damping aluminum alloys includes:

[0003] Patent application publication No. 87105901.0 provides an Al-Zn high damping alloy with high wear resistance and corrosion resistance. misch R E The addition of the alloy improves the wear resistance and corrosion resistance of the alloy, and the best damping performance can be obtained by selecting the heat treatment process reasonably. The alloy has a zinc content of 22% and a damping coefficient of 0.0022. However, too much zinc in the alloy can significantly reduce the mechanical propertie...

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