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A kind of preparation method of aluminum foam kagome honeycomb sandwich structure material

A honeycomb sandwich structure and foamed aluminum technology are applied in the field of preparation of foamed aluminum Kagome honeycomb sandwich structure materials, which can solve the problems of poor overall heat dissipation capacity, and achieve good application prospects, high specific strength, and good energy absorption and heat dissipation. Effect

Active Publication Date: 2020-05-19
ZHUHAI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, if the Kagome lattice sandwich structure can be applied to the field of high-porosity metal foam, it is expected to solve the problem of poor overall heat dissipation capacity of high-porosity metal foam, but there is no relevant report in the prior art

Method used

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  • A kind of preparation method of aluminum foam kagome honeycomb sandwich structure material
  • A kind of preparation method of aluminum foam kagome honeycomb sandwich structure material
  • A kind of preparation method of aluminum foam kagome honeycomb sandwich structure material

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preparation example Construction

[0042] The present invention also includes the preparation method of above-mentioned aluminum foam Kagome honeycomb sandwich structure material, and described preparation method comprises the following steps:

[0043] S1. After heating and melting the alloy aluminum into a melt, add a tackifier and a foaming agent under stirring;

[0044] S2, cooling and solidifying the melt treated in step S1 before the foaming agent foams, and then grinding the solid into powder;

[0045] S3. Add the powder obtained in the step S2 into the prefabricated Kagome honeycomb structure mold, heat and melt, heat-preserve and foam, and cool to obtain the aluminum foam Kagome honeycomb sandwich structure material.

[0046]As can be seen from the above description, the beneficial effects of the present invention are: the present invention skillfully combines the advantages of foamed aluminum and honeycomb, and the foamed aluminum Kagome honeycomb sandwich structure material of the present invention no...

Embodiment 1

[0085] Embodiment 1 (relative density is 0.31) and 2 (relative density is 0.16) the relation between the stress-strain of the aluminum foam Kagome honeycomb sandwich structure material that makes and relative density, as Figure 5 shown by Figure 5 It can be seen that as the relative density increases, the yield stress of the material also increases relatively, but the maximum strain in the compressed to dense section decreases, and the greater the relative density, the greater the strength of the material.

[0086]b) Dynamic compression performance and its influencing factors test experiment:

[0087] As an impact protection material, its application often needs to withstand high-speed deformation, and the impact load has a short time and high impact strength. Therefore, the compression performance under dynamic load is obviously different from that of quasi-static conditions. Take Examples 1-4 Conduct dynamic compression performance test experiments.

[0088] The block sa...

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Abstract

The invention discloses a foamed aluminum material of a Kagome honeycomb core structure as well as a preparing method and an application thereof. The material is prepared by adding a thickening agentand a foaming agent into aluminum alloy melt and, after stirring, cooling and grinding, carrying out foaming in a Kagome honeycomb structure die. The preparing method specifically comprises the following steps: after heating aluminum alloy into the aluminum alloy melt, adding the thickening agent and the foaming agent while stirring; before the foaming of the foaming agent, cooling and condensingthe melt treated in the former step into a solid, and grinding the solid into powder; and adding the powder obtained in the former step into the Kagome honeycomb structure die previously made, carrying out heating for melting and heat insulation for foaming and carrying out cooling to obtain the foamed aluminum material of the Kagome honeycomb core structure. Compared with the prior art, the material not only has the common properties of energy absorption, noise reducing, light weight, high specific rigidity, high specific strength, heat resistance and the like, but also has great energy absorbing and heat dissipating functions.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a method for preparing a foamed aluminum Kagome honeycomb sandwich structure material. Background technique [0002] With the continuous development of science and the progress of society, more and more attention has been paid to the exploration and research of new materials with special functions, which has become an inevitable trend in the development of the field of material science in the future; As the demand continues to rise, more requirements are put forward for the performance of materials, gradually shifting from single performance to multi-function. [0003] High-porosity metal foam is a kind of metal material with a large number of porous structures made of metal as the matrix and produced by foaming and other production processes. Its unique microstructure determines that metal foam has unique mechanical and other multifunctional properties. Aluminum fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/11B22F5/10B22F9/04
CPCB22F3/1115B22F3/1125B22F3/1134B22F5/10B22F9/04
Inventor 张利鹏谢苍桑李军华张溪之徐畅姜长安
Owner ZHUHAI INST OF ADVANCED TECH
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