Preparation method of foamed aluminum sandwich plate

A sandwich panel and foamed aluminum technology, which is applied in the field of layered composite material preparation, can solve the problems of difficult control of the thickness of the foamed aluminum sandwich panel and the structure of the core layer, complex production equipment, and high production cost, achieving rapid preparation and short cooling time , Improve the effect of mechanical properties
CN102390135AActive Publication Date: 2012-03-28NORTHEASTERN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEASTERN UNIV
Publication Date
2012-03-28

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Abstract

The invention relates to a preparation method of a layered composite material, in particular to a preparation method of a foamed aluminum sandwich plate. The method comprises the following steps of: firstly, uniformly mixing an aluminum alloy, a tackifier and a foaming agent to obtain a platy or blocky foamable precast blank material; then, performing hot-pressing compounding of the precast blankand a steel plate after the surface plating to obtain a foamable composite plate sandwiching the precast blank; placing the foamable composite plate sandwiching the precast blank in a mould sleeve closed around, and delivering into an infrared foaming furnace heating at the upper and lower parts at the same time so as to heat and foam the composite plate sandwiching the precast blank under infrared radiation; and finally, pulling the mould sleeve out of the foaming furnace, and cooling to obtain a foamed aluminum sandwich plate with a fixed thickness. The foamed aluminum sandwich plate prepared by the method provided by the invention has an accurate thickness, a uniform structure and a high yield; and moreover, the preparation processes in the invention can be automatically controlled, thereby being favorable for realizing semi-continuous preparation of the foamed aluminum sandwich plate.
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Description

technical field

[0001] The invention relates to a method for preparing a layered composite material, in particular to a method for preparing a foamed aluminum sandwich panel. Background technique

[0002] The sandwich composite structure made of foamed aluminum as the core material and steel plate as the panel is referred to as the foamed aluminum sandwich panel. The foamed aluminum sandwich panel has the characteristics of light weight, high specific stiffness, high specific strength and shock absorption and energy absorption. It has broad application prospects in fields such as transportation, aerospace and construction.

[0003] The existing methods for preparing foamed aluminum sandwich panels include powder metallurgy and melt secondary foaming. The document "Aluminum Foam Sandwich Panels: Manufacture, Metallurgy and Applications" discloses a method for preparing aluminum foam sandwich panels with a size of 1m×2m by powder metallurgy. In this method, the aluminum powd...

Claims

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