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Porous aluminium carbon composite material and preparation method thereof

A technology of aluminum-carbon composite material and carbon composite material, applied in the field of materials, can solve problems such as the blank period of application research, and achieve the effects of good thermal insulation performance, weight reduction, and easy mastery

Active Publication Date: 2018-10-02
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] my country's aluminum bamboo (carbon) composite materials are mainly used in the decorati

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The preparation method of the porous aluminum-carbon composite material provided by the present invention includes the following steps:

[0025] 1) Carbon material processing: Cut bamboo pieces (preferably dry bamboo pieces) with a saw, the length is not more than 20cm, and put them in a steel pallet with a stacking height of not more than 10cm; put the stacked bamboo pallets in a vacuum Sintering in a sintering furnace; the vacuum degree of the vacuum furnace is less than or equal to 200Pa, and then the temperature is rapidly raised to the sintering temperature 250~350℃, and the temperature is kept for 3.5~4.5h, then the heating is stopped, natural cooling to room temperature, the warehouse is opened, and the carbonized bamboo board is taken out , Then placed in a crucible for grinding, then sieved through a 200-mesh sieve, and then placed in a ziplock bag for later use.

[0026] 2) Preparation of aluminum chips: Process the selected aluminum alloy (it can be any brand of a...

Example Embodiment

[0031] Example 1

[0032] 1) Carbon material processing: cut bamboo pieces with a saw, the length is not more than 20cm, and put them in a steel tray with a stacking height of not more than 10cm; put the stacked bamboo pallets in a vacuum sintering furnace for sintering; vacuum furnace The vacuum degree is 200Pa, then the temperature is rapidly raised to 250°C for sintering, and the temperature is kept for 3.5h. After that, the heating is stopped, and it is naturally cooled to room temperature. The warehouse is opened, and the carbonized bamboo board is taken out, then placed in a crucible for grinding, and then passed through 200 mesh Sieved with a sieve, and then placed in a ziplock bag for later use.

[0033] 2) Preparation of aluminum chips: processing aluminum alloy into aluminum chips, the average particle size of the aluminum chips is less than 1mm, and the shape is irregular;

[0034] 3) Rough machining of composite materials: The processed carbon material and aluminum scrap...

Example Embodiment

[0037] Example 2

[0038] 1) Carbon material processing: cut bamboo pieces with a saw, the length is not more than 20cm, and put them in a steel tray with a stacking height of not more than 10cm; put the stacked bamboo pallets in a vacuum sintering furnace for sintering; vacuum furnace The vacuum degree is 200Pa, and then the temperature is rapidly raised to 300°C for sintering, and the temperature is kept for 4h. After that, the heating is stopped, and it is naturally cooled to room temperature. The warehouse is opened, and the carbonized bamboo board is taken out, then placed in a crucible for grinding, and then passed through a 200 mesh sieve Sieved, and then placed in a ziplock bag for later use.

[0039] 2) Preparation of aluminum chips: processing aluminum alloy into aluminum chips, the average particle size of the aluminum chips is less than 1mm, and the shape is irregular;

[0040] 3) Rough machining of composite materials: the processed carbon material and aluminum scraps a...

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PUM

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Abstract

The invention relates to a porous aluminium carbon composite material and a preparation method thereof. The preparation method comprises the following steps: sintering bamboo chips in vacuum for carbonization to obtain a carbon material; machining aluminium alloy into aluminium scraps; mixing the carbon material of certain proportion with the aluminium scraps to obtain a mixed material, and carrying out pressure molding on the mixed material to obtain an aluminium carbon composite material; and sintering the aluminium carbon composite material after pressure molding in vacuum to obtain the porous aluminium carbon composite material. The preparation method is simple to operate and low in cost, and has the advantages of effectively reducing weight of aluminum matrix composite material and prolonging the service life. And in addition, the porous aluminium carbon composite material has the advantages of being high in thermal insulating performance, silencing effect and comfort level.

Description

technical field [0001] The invention relates to the field of materials, more specifically, to a porous aluminum-carbon composite material and a preparation method thereof. Background technique [0002] With the implementation of the country's western development, national infrastructure projects represented by high-speed railways (high-speed railways) are being implemented and constructed on a large scale across the country. Coupled with the improvement of people's living standards, and the convenience, comfort, speed, efficiency, and safety of high-speed rail, people's travel methods are gradually changing to high-speed rail trains, which increases the demand for high-speed rail trains. The traditional train body is made of steel. Due to the weight of the body itself, it is not conducive to increasing the speed and saving energy. Therefore, aluminum and its alloys with light weight, good corrosion resistance, and good forming ability have gradually become the mainstream mat...

Claims

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Application Information

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IPC IPC(8): C22C1/05
CPCB22F2999/00C22C1/05B22F3/1007B22F2201/20
Inventor 王晓民南辉李和奇曹海莲卢海静苏丽萍韦浩民
Owner QINGHAI UNIVERSITY
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