Foamed aluminum-corrugated plate composite sandwich plate and preparation method thereof

A technology of corrugated board and sandwich board, which is applied in the field of foamed aluminum-corrugated board composite sandwich board and its preparation, can solve the problems of high cutting precision of foamed aluminum, affecting the overall mechanical properties, and high manufacturing cost, so as to improve the resistance to explosion impact Protective performance, low manufacturing process cost, and the effect of reducing structural weight

Inactive Publication Date: 2014-12-03
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the adhesive strength, the prepared composite materials often have debonding, desoldering and other phenomena during the loading process, which affects its overall mechanical properties.
Moreover, the existing preparation method is relatively cumbersome, and requires high cutting precision of foamed aluminum, and the overall manufacturing cost is relatively high.

Method used

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  • Foamed aluminum-corrugated plate composite sandwich plate and preparation method thereof
  • Foamed aluminum-corrugated plate composite sandwich plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 and figure 2 , 1) First of all, the corrugated core body 1 is made of the flattened carbon steel plate by molding technology. Cleaning off the oil and rust on the corrugated core 1 and the panel 2, and brazing the corrugated core 1 and the panel 2 to form a corrugated plate;

[0028] 2) Secondly, the industrial pure aluminum powder with a particle size of 40-150 microns and titanium hydride (TiH 2 ) after being mixed in a mass ratio of 99:1, mix evenly in the mixer to obtain a mixed powder;

[0029] 3) Next, inject the mixed powder into the extrusion die, control the extrusion ratio to 12, and extrude a Φ8mm billet through continuous extrusion process, and the compactness is greater than 99%. Then the obtained blank is put into a molding die, pressurized to 200MPa and molded into a triangular prism-shaped foamable preform.

[0030] 4) Again, acid and alkali wash the corrugated board and the foamable preform to remove the surface oxide film. After dryin...

Embodiment 2

[0033] 1) Firstly, the flattened stainless steel plate is made into the corrugated core 1 by folding technology. Clean off the oil and rust on the corrugated core 1 and the panel 2, and weld the corrugated core 1 and the panel 2 by laser welding to form a corrugated plate;

[0034] 2) Secondly, the industrial purity aluminum powder with a particle size of 40-150 microns and titanium hydride (TiH 2 ) is mixed by the mass ratio of 99.4:0.6 and injected into the blender to mix evenly to obtain the mixed powder;

[0035] 3) Next, inject the mixed powder into the extrusion die, control the extrusion ratio to 13, and extrude a Φ8mm billet through continuous extrusion process, the compactness is greater than 99%, and then put the obtained billet into the molding die Inside, it is pressurized to 300MPa and molded into a quadrangular prism-shaped foamable preform.

[0036] 4) Again, wash the corrugated board and the foamable preform with acid and alkali to remove the oxide film on th...

Embodiment 3

[0039]1) Firstly, the flattened titanium plate is made into a corrugated core 1 by folding technology. Clean off the oil and rust on the corrugated core 1 and the panel 2, and weld the corrugated core 1 and the panel 2 by laser welding to form a corrugated plate;

[0040] 2) Secondly, industrially pure aluminum powder, silicon powder and titanium hydride (TiH 2 ) after being mixed in a mass ratio of 93:6:1, put into a mixer and mix evenly to obtain a mixed powder;

[0041] 3) Next, inject the mixed powder into the extrusion die, control the extrusion ratio to 11, and extrude a Φ8mm billet through continuous extrusion process, the compactness is greater than 99%, and then put the obtained billet into the molding die Inside, it is pressurized to 300MPa and molded into a cylindrical foamable preform.

[0042] 4) Again, acid and alkali wash the corrugated board and the foamable preform to remove the surface oxide film. After drying, fill the foamable preform into the corrugated ...

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Abstract

The invention relates to a foamed aluminum-corrugated plate composite sandwich plate and a preparation method thereof. The method comprises the following steps: firstly, manufacturing a corrugated core body; welding the corrugated core body to a panel to form a corrugated plate; putting basal powder and a foaming agent in a mixing machine for uniform mixing, and then extruding the mixed powder into a primary blank; putting the blank in a mould for pressing, filling the inside of the corrugated plate with a pressed foaming prefabricated body, and putting the corrugated plate in an atmosphere furnace for foaming; and heating and keeping warm until the prefabricated body is expanded to form foamed aluminum with which pores of the corrugated plate are completely filled, and then cooling. By using a powder metallurgy method, the inside of lattice metal is foamed in situ to form the metallurgical-bonding foamed aluminum-corrugated plate composite sandwich plate. The excellent mechanical property of the lattice metal and the advantages of energy absorption, sound insulation, shock absorption and thermal insulation of the foamed aluminum are utilized, so that the multifunctional coupling is realized, and the structure and function integration material with the relatively excellent comprehensive performance is obtained. The bonding strength is effectively improved by virtue of metallurgical bonding, and the performance of the composite material is further improved.

Description

technical field [0001] The invention belongs to the technical field of ultra-light porous metal materials, and in particular relates to an aluminum foam-corrugated board composite sandwich board and a preparation method thereof. Background technique [0002] Ultralight porous metal materials are a new type of multifunctional materials that have emerged with the rapid development of material preparation and machining technology in recent years, and have the characteristics of structural and functional integration. Its core has high porosity, and its microstructure can be divided into disordered and ordered according to the degree of regularity. The former includes closed-cell aluminum foam materials, while the latter includes two-dimensional lattice materials (such as corrugated structures) and three-dimensional trusses. Structure (such as pyramid structure, tetrahedron structure). [0003] Metal foam has the characteristics of high porosity, and has excellent energy absorpt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/26B32B3/28B32B15/04B32B33/00B32B38/18B32B37/15
Inventor 王文斌张钱城杨肖虎卢天健闫雷雷
Owner XI AN JIAOTONG UNIV
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