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Closed cell foam aluminum alloy and preparation method thereof

A closed-cell foam and aluminum alloy technology, applied in the field of foam aluminum alloy, can solve the problems of poor shock absorption capacity, poor damping and shock absorption effect, etc.

Inactive Publication Date: 2014-06-04
东莞市闻誉实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the closed-cell foamed aluminum alloy of the invention are poor impact absorption ability and poor damping and shock absorption effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] A closed-cell foamed aluminum alloy, comprising the following components expressed in wt%: Ti 5wt%, Cr 2wt%, Co 2wt%, Ca 0.5wt%, nanoparticles 4wt%, and the balance Al.

[0070] The above-mentioned closed-cell foamed aluminum alloy is prepared according to the following method:

[0071] (1) Heating pure aluminum to melt;

[0072] (2) Add the amount of Ti, Cr, and Co in the formula, fully stir at 1200rpm for 200s, keep it at 720°C for 20min;

[0073] (3) Add the amount of Ca in the recipe, and stir at a speed of 1200rpm for 200s;

[0074] (4) Add the formulated amount of nanoparticles and fully stir at 1200rpm for 200s;

[0075] (5) Add titanium hydride with 3wt% pure aluminum, fully stir for 200s at a rate of 1200rpm, and keep warm for 20min at a temperature of 720°C to make the aluminum alloy melt foam;

[0076] (6) The foamed aluminum alloy melt obtained in step (5) is simultaneously cooled in all directions to obtain a closed-cell foamed aluminum alloy.

[0077]T...

Embodiment 2

[0082] A closed-cell foamed aluminum alloy, comprising the following components expressed in mass percentage wt%, Ti3wt%, Cr3wt%, Co1wt%, Ca1wt%, nanoparticles 2wt%, and the balance Al.

[0083] The above-mentioned closed-cell foamed aluminum alloy is prepared according to the following method:

[0084] (1) Heating pure aluminum to melt;

[0085] (2) Add the formula amount of Ti, Cr, Co, fully stir at the speed of 1000rpm for 400s, keep it at 680℃ for 30min;

[0086] (3) Add the amount of Ca in the recipe, and fully stir for 400s at a rate of 1000rpm;

[0087] (4) Add the formulated amount of nanoparticles and fully stir for 400s at a rate of 1000rpm;

[0088] (5) Add titanium hydride with 2wt% pure aluminum, fully stir for 400s at a rate of 1000rpm, and keep warm for 30min at a temperature of 680°C to make the aluminum alloy melt foam;

[0089] (6) The foamed aluminum alloy melt obtained in step (5) is simultaneously cooled in all directions to obtain a closed-cell foamed ...

Embodiment 3

[0095] A closed-cell foamed aluminum alloy, comprising the following components expressed in mass percentage wt%, Ti6wt%, Cr1wt%, Co3wt%, Ca0.2wt%, nano-particles 5wt%, and the balance Al.

[0096] The above-mentioned closed-cell foamed aluminum alloy is prepared according to the following method:

[0097] (1) Heating pure aluminum to melt;

[0098] (2) Add the prescribed amount of Ti, Cr, and Co, fully stir at 1350rpm for 100s, keep warm at 750°C for 18min;

[0099] (3) Add the amount of Ca in the formula, and stir at a speed of 1350rpm for 100s;

[0100] (4) Add the formulated amount of nanoparticles and fully stir at 1350rpm for 100s;

[0101] (5) Add a foaming agent of 1.5-3.5wt% pure aluminum, fully stir at 1350rpm for 100s, and keep warm at 750°C for 18min to make the aluminum alloy melt foam;

[0102] (6) The foamed aluminum alloy melt obtained in step (5) is simultaneously cooled in all directions to obtain a closed-cell foamed aluminum alloy.

[0103] The performa...

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Abstract

The invention relates to a foam aluminum alloy, in particular to a closed cell foam aluminum alloy, which comprises the following components by weight wt%: 1-8 wt% of Ti, 0.5-5 wt% of Cr, 0.2-4 wt% of Co, 0.1-3 wt% of Ca, 0.5-6 wt% of nano-particles, and the balance of Al. The invention further discloses a preparation method of the closed cell foam aluminum alloy. According to the invention, the closed cell foam aluminum alloy obtained by a formula and the preparation method has the advantages of consistent sizes and shapes of bubbles, high yield, high intensity and good anti-corrosion performance.

Description

technical field [0001] The invention relates to a foamed aluminum alloy, in particular to a closed-cell foamed aluminum alloy and a preparation method thereof. Background technique [0002] Foamed aluminum alloy is prepared by adding additives to aluminum alloy through foaming process. At the same time, it has the characteristics of metal and bubbles, so it has low density, low thermal conductivity, high temperature resistance, corrosion resistance, strong shock absorption ability, and reduced damping. Good vibration effect, high electromagnetic shielding performance, sound insulation and noise reduction, weather resistance, easy processing, easy installation, high forming precision, surface coating and many other advantages, in aerospace, marine industry, transportation industry, building structure industry and other fields are widely used. In general, foamed aluminum alloys are classified into two types: a closed-cell type in which bubbles exist independently and an open-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/08
Inventor 叶伟炳
Owner 东莞市闻誉实业有限公司