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Method for manufacturing foamed aluminum board

A foamed aluminum plate and manufacturing method technology, applied in the field of material processing, can solve the problems of limited product shape, inability to effectively control and arbitrarily adjust foamed metal structure parameters, and high cost

Inactive Publication Date: 2011-10-05
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum foam sandwich panel prepared by this method requires a reduction of more than 50%, and the production efficiency is low, the cost is high, and the foaming agent is not evenly distributed.
In addition, this method is only suitable for the preparation of plate-shaped materials, and the shape of the product is limited
[0004] In short, most of the current preparation methods are unable to effectively control and arbitrarily adjust the structural parameters of metal foam.

Method used

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  • Method for manufacturing foamed aluminum board
  • Method for manufacturing foamed aluminum board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the manufacture of foamed aluminum sheet

[0018] 1. Chamber preparation

[0019] The industrial pure aluminum sheet with a thickness of 15mm is riveted to make an open box with an internal space of 900×500×300mm, and the cross-sectional size of the opening is 500×300mm.

[0020] 2. Encapsulate the blowing agent in the tube

[0021] Industrial pure aluminum pipe: inner diameter 10mm, wall thickness 5mm, cutting length 900mm. Seal one end of the pipe with an industrial pure aluminum block, the mass fraction of the foaming agent TiH2 is 2%, and the other is Al powder. Mix TiH2 and Al powder evenly at normal temperature and pressure and put them into the industrial pure aluminum pipe. After cold pressing, the foaming agent is sealed in the pipe with an ordinary aluminum block.

[0022] 3. Fabrication of aluminum foam precursor

[0023] Put 299 pieces of industrial pure aluminum pipes containing foaming agent titanium hydride powder into an open box made o...

Embodiment 2

[0026] Embodiment 2: the manufacture of foamed aluminum alloy plate

[0027] The difference from Example 1 is that the box body, pipe and pipe encapsulation materials are all 5083 aluminum alloy, and the heating temperature is 300°C when the aluminum alloy precursor is prepared by rolling method, and the foam is finally made into foam after foaming treatment Aluminum alloy sheet.

Embodiment 3

[0028] Example 3: Manufacture of 7075 aluminum alloy / foam aluminum / 7075 aluminum alloy sandwich composite plate

[0029] Compared with Example 1 and Example 2, the box material is 25mm thick 7075 aluminum alloy, the pipe and packaging materials are industrial pure aluminum, the heating temperature is 330°C, and the precursor with a thickness of 50mm is prepared by rolling method , and finally prepared into 7075 aluminum alloy / foam aluminum / 7075 aluminum alloy sandwich composite plate after foaming treatment.

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Abstract

The invention provides a method for manufacturing a foamed aluminum board. The method comprises the following steps of: putting titanium hydride powder containing 1 to 3 percent foaming agent into an aluminum or aluminum alloy pipe, sealing a plurality of aluminum or aluminum alloy pipes into which titanium hydride powder is filled in an aluminum or aluminum alloy box, performing mill processing and densifying, and foaming to prepare the foamed aluminum board. By the method, the defects that the pore structure is difficult to control in a casting method and preparation cost is high in a powder metallurgy method are overcome. Compared with an accumulative roll-bonding method, the method has the advantages that the foaming agent can be distributed uniformly, the pore volume can be controlled, the method is not limited by rolling reduction of a critical pass; by the method, the processing can be performed by a compound blank with a large section size, so that a foamed aluminum precursor can be manufactured under a low distortion temperature condition; and the method is convenient to operate and is low in cost.

Description

technical field [0001] The invention relates to the field of material processing, in particular to the manufacture and application of foam materials. Background technique [0002] With the progress of society and the continuous development of science and technology, people's requirements for materials are constantly improving, especially in the high-tech field, new requirements are put forward for ultra-light structures and multi-functional materials. As a new type of multi-functional material, porous metal foam has the characteristics of light weight, sound insulation, heat insulation, vibration resistance, impact resistance, excellent electrical properties and recyclability, and adapts to the current development requirements of low carbon and lightweight. There are potential uses in automobiles, aviation, aerospace, sea, land and air weapons and equipment, communications, and energy. Because porous metal foam has so many properties and uses, it has become a hot spot in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02
Inventor 任学平李殊霞侯红亮王耀奇赵艳君曲海涛
Owner UNIV OF SCI & TECH BEIJING
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