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Lightweight aluminum bamboo/carbon compound material, and preparation method and application thereof

A carbon composite material, lightweight technology, applied in chemical instruments and methods, layered products, metal layered products, etc., can solve the problems of limited use of composite materials, blank period, etc. Good noise cancelling effect

Active Publication Date: 2018-03-06
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aluminum-bamboo composite material is one of the representatives of lightweight composite aluminum alloy materials. However, because the existing aluminum-bamboo composite material is traditional aluminum plate-wrapped bamboo plate, there is no force between the aluminum-bamboo composite materials, and rivets or screws are often used to fix the aluminum-bamboo composite material. , to prevent the bamboo sheet from deforming, sliding, and falling off. Once the screws or rivets fall off, the use of composite materials will be limited
At present, it is mainly used in the decoration industry, and the research on the application on high-speed trains is still in a blank period.

Method used

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  • Lightweight aluminum bamboo/carbon compound material, and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0022] According to the single-layer composite method (such as Picture 1-1 As shown), an aluminum plate with a thickness of 3 mm and a bamboo plate with a thickness of 5 mm are rolled together in a vise and then placed in a vacuum resistance furnace for sintering.

[0023] The sintering system is: the pressure of the vacuum furnace is 180Pa; the sintering temperature is 800℃; the temperature is kept for 3 hours; and then it is naturally cooled to room temperature.

[0024] After taking out the sintered aluminum-bamboo (carbon) composite material, use a universal testing machine to test the mechanical properties. The result shows: the ultimate tensile strength σ b =315MPa; tensile yield strength σ 0.2 =261MPa; elongation δ 5 (%)=13; Hardness HB=54; Compared with aluminum alloy of the same volume, the mass is reduced by 14%.

Embodiment 2

[0026] According to the double-layer composite method (such as figure 1 -2), the aluminum plate with a thickness of 3mm and a bamboo plate with a thickness of 5mm are rolled together in a vise and then placed in a vacuum resistance furnace for sintering.

[0027] The sintering system is: the pressure of the vacuum furnace is 150Pa; the sintering temperature is 700°C; the temperature is kept for 5 hours; then it is naturally cooled to room temperature.

[0028] After taking out the sintered aluminum-bamboo (carbon) composite material, use a universal testing machine to test the mechanical properties. The result shows: the ultimate tensile strength σ b =321MPa; tensile yield strength σ 0.2 =257MPa; elongation δ 5 (%)=11; Hardness HB=45; Compared with aluminum alloy of the same volume, the mass is reduced by 18%.

Embodiment 3

[0030] According to the longitude and weft compound method (such as figure 1 -3), the aluminum plate with a thickness of 2mm and a bamboo plate with a thickness of 4mm are rolled together in a vise and then placed in a vacuum resistance furnace for sintering.

[0031] The sintering system is: the pressure of the vacuum furnace is 160 Pa; the sintering temperature is 850°C; the temperature is kept for 4 hours; then it is naturally cooled to room temperature.

[0032] After taking out the sintered aluminum-bamboo (carbon) composite material, use a universal testing machine to test the mechanical properties. The result shows: the ultimate tensile strength σ b =311MPa; tensile yield strength σ 0.2 =251MPa; elongation δ 5 (%)=11; Hardness HB=48; Compared with aluminum alloy of the same volume, the mass is reduced by 17%.

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Abstract

The invention relates to the technical field of novel compound materials, and relates to an aluminum bamboo compound material and a preparation method. The compound material adopts the technical scheme of a lightweight aluminum bamboo / carbon composite material, and is characterized by comprising an aluminum plate layer and a bamboo sheet layer, wherein the aluminum plate layer and the bamboo sheetlayer are compounded in a single layer way, a multi-layer way or a multi-layer longitude and latitude compounding way, and is formed through vacuum sintering. The preparation method is characterizedby comprising the following steps: processing the bamboo sheet layer and the aluminum plate layer; compounding in a single layer way, a multi-layer way or a multi-layer longitude and latitude compounding way; performing vacuum sintering. The compound material effectively reduces the weight of an aluminum matrix composite material, and is good in mechanical interaction force and wide in application; the preparation method is simple, the technical operation flow is simple, investment capital for equipment is less, and the cost is low.

Description

Technical field [0001] The invention relates to the technical field of a novel composite material, and relates to an aluminum bamboo composite material and a preparation method. Background technique [0002] With the implementation of the country's western development strategy, national infrastructure projects represented by high-speed railways (high-speed railways) are being implemented and constructed on a large scale nationwide. Coupled with the improvement of people's living standards, as well as the convenience, comfort, speed, efficiency, and safety of high-speed rail, people's travel mode is gradually changing to mainly high-speed rail trains, which increases the demand for high-speed rail trains. Traditional train car bodies are made of steel materials. Due to the weight of the car body, it is not conducive to improving speed and energy saving. Therefore, aluminum and its alloys with light weight, good corrosion resistance and good forming ability have gradually become th...

Claims

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Application Information

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IPC IPC(8): C22C47/20C22C49/06C22C49/14C22C101/10B32B9/02B32B9/04B32B15/20
Inventor 王晓民南辉曹海莲卢海静王金颖韦浩民
Owner QINGHAI UNIVERSITY
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