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A kind of preparation method of foamed aluminum material

A technology of foamed aluminum and aluminum chips, which is applied in the field of foamed aluminum materials, can solve problems such as unsatisfactory fluid uniform distribution, and achieve the effects of low production cost, improved strength, and simple preparation methods

Inactive Publication Date: 2018-08-10
江西仲建铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The through-hole foamed aluminum in the past has a porosity of 60-80%, which is not ideal for heat exchange, fluid filtration, and fluid uniform distribution.

Method used

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  • A kind of preparation method of foamed aluminum material
  • A kind of preparation method of foamed aluminum material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of foamed aluminum material, the method specifically comprises the following steps:

[0028] Step 1, putting aluminum chips and ammonium chloride into a stirred tank, and then stirring and blending in a water bath for 2 hours;

[0029] Step 2, adding epoxy resin to absolute ethanol, stirring evenly until completely dissolved;

[0030] Step 3, add the dispersant to the solution in step 2, stir evenly until completely dissolved, then slowly add the mixture in step 1 dropwise, stir evenly to form a viscous suspension;

[0031] Step 4, pour the suspension viscous liquid into the mold for low-temperature curing for 1 hour, and then perform high-pressure pressing to form a block;

[0032] Step 5, put the block into the reaction kettle for high-temperature sealing and sintering 3, then carry out gradient decompression sintering for 6 hours, and obtain the foamed aluminum material after natural cooling.

[0033] The formula in the preparation method is as...

Embodiment 2

[0042] A preparation method of foamed aluminum material, the method specifically comprises the following steps:

[0043] Step 1, putting aluminum chips and ammonium chloride into a stirred tank, and then stirring and blending in a water bath for 3 hours;

[0044] Step 2, adding epoxy resin to absolute ethanol, stirring evenly until completely dissolved;

[0045] Step 3, add the dispersant to the solution in step 2, stir evenly until completely dissolved, then slowly add the mixture in step 1 dropwise, stir evenly to form a viscous suspension;

[0046] Step 4, pour the suspension viscous liquid into the mold for low-temperature curing for 2 hours, and then perform high-pressure pressing to form a block;

[0047] Step 5, put the block into the reaction kettle for high-temperature sealing and sintering for 8 hours, then carry out gradient decompression sintering for 15 hours, and obtain the foamed aluminum material after natural cooling.

[0048] The formula in the preparation ...

Embodiment 3

[0057] A preparation method of foamed aluminum material, the method specifically comprises the following steps:

[0058] Step 1, putting aluminum chips and ammonium chloride into a stirred tank, and then stirring and blending in a water bath for 3 hours;

[0059] Step 2, adding epoxy resin to absolute ethanol, stirring evenly until completely dissolved;

[0060] Step 3, add the dispersant to the solution in step 2, stir evenly until completely dissolved, then slowly add the mixture in step 1 dropwise, stir evenly to form a viscous suspension;

[0061] Step 4, pour the suspension viscous liquid into the mold for low-temperature curing for 2 hours, and then perform high-pressure pressing to form a block;

[0062] Step 5, put the block into the reaction kettle for high-temperature sealing and sintering for 6 hours, then carry out gradient decompression sintering for 12 hours, and obtain the foamed aluminum material after natural cooling.

[0063] The formula in the preparation ...

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Abstract

The invention relates to a preparing method for a foaming aluminum material. The foaming aluminum material is prepared with ammonium chloride and aluminum scraps as raw materials. According to the preparing thought, after the ammonium chloride and the aluminum scraps are mixed, suspension viscous fluid is formed through the ammonium chloride, the aluminum scraps, epoxy resin and a dispersing agent, high-temperature sealing sintering and gradient pressure reducing sintering are conducted after high-pressure pressing, and finally the foaming aluminum material is obtained. Compared with the prior art, the problem of instable structures is thoroughly solved; the preparing method is simple, batched production is facilitated, and the production cost is low; and prepared foaming aluminum has a stable and uniform pore structure, and pore controllability is improved.

Description

technical field [0001] The invention belongs to the technical field of foamed aluminum materials, and relates to a preparation method of foamed aluminum materials. Background technique [0002] Full-hole foamed aluminum-foamed aluminum is the first new material developed in recent years. The foamed material is a foamed material made of the original solid material through a special process. The structure can be roughly divided into through-cell aluminum foam and closed-cell aluminum foam. The through-hole foam aluminum in the past has a through-porosity between 60-80%, which is not ideal for heat exchange, fluid filtration, and fluid uniform distribution. Contents of the invention [0003] The object of the present invention is to provide a method for preparing foamed aluminum materials with mild preparation conditions and good product performance in order to overcome the above-mentioned defects in the prior art. [0004] The purpose of the present invention can be achiev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/08
CPCB22F3/02B22F3/1125B22F3/1134B22F2999/00C22C1/08B22F3/11B22F2203/13
Inventor 杨林
Owner 江西仲建铝业有限公司
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