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A kind of preparation method of composite reinforced metal foam sandwich panel

A foam metal and sandwich panel technology, applied in the direction of chemical instruments and methods, metal layered products, synthetic resin layered products, etc., can solve the problems of high cost and unsatisfactory effect, and achieve low processing and manufacturing costs and comprehensive mechanics The effect of excellent performance and simple composite strengthening process

Inactive Publication Date: 2018-09-04
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of alloying can improve its mechanical properties to a certain extent, but the cost is high and the effect is not ideal

Method used

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  • A kind of preparation method of composite reinforced metal foam sandwich panel
  • A kind of preparation method of composite reinforced metal foam sandwich panel
  • A kind of preparation method of composite reinforced metal foam sandwich panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: 1) Processing of metal foam. First, the closed-cell foamed aluminum is processed into the required core structure by cutting machine or wire cutting according to the size of the core body of the sandwich panel, and then a series of through-hole structures are processed along the thickness direction by means of drilling or wire cutting. The size of the hole is consistent with the cross-sectional size of the pipe fitting structure, and an appropriate gap can be left. The size of the gap is less than 0.1mm. The number and distribution are determined according to specific needs. Generally, it is an array structure arranged in a certain order, such as figure 1 and image 3 shown. Among them, the metal foam is closed-cell aluminum foam with a density of 0.54-0.81g / cm 3 , The porosity is 70-80%.

[0027] 2) For the processing of reinforced metal pipe fittings and panels. The metal 304 stainless steel round tube is processed into a short tube with the same siz...

Embodiment 2

[0029] Embodiment 2: 1) Processing of metal foam core. First, the closed-cell foamed aluminum is processed into the required core structure by cutting machine or wire cutting according to the size of the core body of the sandwich panel, and then a series of through-hole structures are processed along the thickness direction by means of drilling or wire cutting. The size of the hole is consistent with the cross-sectional size of the pipe fitting structure, and an appropriate gap can be left. The size of the gap is less than 0.1mm. The number and distribution are determined according to specific needs. Generally, it is an array structure arranged in a certain order, such as figure 1 and image 3 shown. Among them, the metal foam is closed-cell aluminum foam with a density of 0.1-0.54g / cm 3 , The porosity is 80-95%.

[0030] 2) For the processing of reinforced metal pipe fittings and panels. The 2024 aluminum alloy round tube is processed into a short tube with the same size ...

Embodiment 3

[0032] Embodiment 3: 1) Processing of metal foam core. First, the open-cell foam copper is processed into the required core structure by cutting machine or wire cutting according to the core size of the sandwich panel, and then a series of through-hole structures are processed along the thickness direction by means of drilling or wire cutting. The size of the hole is consistent with the cross-sectional size of the pipe fitting structure, and an appropriate gap can be left. The size of the gap is less than 0.1mm. The number and distribution are determined according to specific needs. Generally, it is an array structure arranged in a certain order, such as figure 1 and image 3 shown. Among them, the metal foam is copper foam with open cells, the average pore diameter is 2.27mm, and the porosity is 95%.

[0033] 2) For the processing of reinforced metal pipe fittings and panels. The metal 304 stainless steel round tube is processed into a short tube with the same size as the ...

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Abstract

The invention discloses a method for preparing a composite reinforced foam-metal sandwich panel. According to the method, a foam-metal (such as foamed aluminum) sandwich panel and a metallic tube fitting structure are organically combined, so that a novel composite reinforcement technology for the foam-metal sandwich panel is achieved, and the novel composite reinforced foam-metal sandwich panel is obtained. Aspects such as tension-compression strength, rigidity and energy absorption efficiency of the novel foam-metal sandwich panel are all improved remarkably, so that the novel foam-metal sandwich panel has an extensive application in the fields of military equipment, automobile manufacturing, machine manufacturing and safety protection. The novel composite reinforced foam-metal sandwich panel can be used for effectively absorbing impact energy under the action of an impact load and meanwhile has excellent properties such as damping, flame retarding and electromagnetic shielding; and furthermore, the processing and preparing are simple, so that the foam-metal sandwich panel has a relatively low manufacturing cost.

Description

technical field [0001] The invention relates to a method for preparing a metal foam sandwich panel, in particular to a method for preparing a novel composite reinforced metal foam sandwich panel. Background technique [0002] Compared with traditional metal materials, metal foam represented by foam aluminum has ultra-high porosity and various microstructure forms, and has mechanical properties such as super specific strength, specific stiffness and energy absorption rate. At the same time, the existence of pore structure endows Its excellent properties such as heat insulation, damping and multi-functional composite make it have broad application prospects as a structural and functional integration material in aerospace, vehicle manufacturing, safety protection, vibration and noise reduction and other fields. According to the pore connectivity, metal foam can be divided into two categories: open-cell metal foam and closed-cell metal foam. In particular, the stress-strain cur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B15/20B32B5/18B32B27/04B32B3/20B32B38/04B32B38/00B32B37/12
CPCB32B3/20B32B15/01B32B15/046B32B15/20B32B37/1284B32B38/0004B32B38/04B32B2038/0076B32B2038/042
Inventor 闫雷雷赵雪李颖赵静波姚宏
Owner AIR FORCE UNIV PLA
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