Preparing device and method of directional carbon nano tube reinforced metal matrix composite material

A carbon nanotube and composite material technology, which is applied in the field of preparing oriented carbon nanotube reinforced metal matrix composite materials and the field of oriented carbon nanotube reinforced metal matrix composite material preparation devices, and can solve the problem of difficulty in preparing oriented carbon nanotube reinforced metal matrix composite materials. and other problems, to achieve the effect of low cost and simple equipment requirements

Active Publication Date: 2014-01-01
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiency that the existing oriented carbon nanotube reinforced metal matrix composite material preparation device is difficult to prepare oriented carbon nanotube reinforced metal matrix composite material, the present invention provides a kind of oriented carbon nanotube reinforced metal matrix composite material preparation device

Method used

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  • Preparing device and method of directional carbon nano tube reinforced metal matrix composite material

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Effect test

Embodiment 1

[0022] Method embodiment 1: a method for preparing oriented carbon nanotube reinforced magnesium-based composite material, comprising the following steps:

[0023] Step 1: Wrap the AZ91D magnesium alloy and multi-wall carbon nanotubes with aluminum foil and put them into the crucible 4 according to the volume fraction of 100:1, lower the punch 10 to press the pad 11, open the pressure reducing valve 1 and valve 14, and pass it into the pressure tank 3. The protective gas is introduced from the air pipe 9, flows through the infusion pipe 6, and finally is discharged from the exhaust pipe 13;

[0024] Step 2: Open the resistance furnace 2, melt all the AZ91D magnesium alloy in the crucible 4, open the resistance furnace 12, and preheat the die barrel 16 and the forming die 17;

[0025] Step 3: After the AZ91D is melted, turn on the ultrasonic generator, place the ultrasonic amplitude rod 7 at 5mm below the liquid surface, the ultrasonic power is 1500W, and the ultrasonic frequen...

Embodiment 2

[0027] Method embodiment 2: a method for preparing an aligned carbon nanotube reinforced aluminum matrix composite material, comprising the following steps:

[0028] Step 1: Wrap the A356 aluminum alloy and multi-walled carbon nanotubes with aluminum foil and put them into the crucible 4 according to the volume fraction of 50:1, lower the punch 10 to press the pad 11, open the pressure reducing valve 1 and the valve 14, and pass it into the pressure tank 3. The protective gas is introduced from the air pipe 9, flows through the infusion pipe 6, and finally is discharged from the exhaust pipe 13;

[0029] Step 2: Open the resistance furnace 2, melt all the A356 aluminum alloy in the crucible 4, open the resistance furnace 12, and preheat the die barrel 16 and the forming die 17;

[0030] Step 3: After the A356 aluminum alloy is melted, turn on the ultrasonic generator, place the ultrasonic amplitude rod 7 at 8mm below the liquid surface, the ultrasonic power is 500W, and the ultr...

Embodiment 3

[0032] Method embodiment 3: a method for preparing oriented carbon nanotube reinforced copper-based composite material, comprising the following steps:

[0033] Step 1: Wrap the copper and single-walled carbon nanotubes with aluminum foil and put them into the crucible 4 according to the volume fraction of 200:1, lower the punch 10 to press the spacer 11, open the pressure reducing valve 1 and the valve 14, and pass it into the pressure tank 3, The protective gas is introduced from the air pipe 9, flows through the infusion pipe 6, and is finally discharged from the exhaust pipe 13;

[0034] Step 2: Open the resistance furnace 2, melt all the A356 aluminum alloy in the crucible 4, open the resistance furnace 12, and preheat the die barrel 16 and the forming die 17;

[0035] Step 3: After the copper is melted, turn on the ultrasonic generator, place the ultrasonic amplitude rod 7 at 5mm below the liquid surface, the ultrasonic power is 2000W, and the ultrasonic frequency is 100...

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Abstract

The invention discloses a preparing device and method of directional carbon nano tube reinforced metal matrix composite material. The preparing device and method are used for solving the problem that an existing preparing device prepares the directional carbon nano tube reinforced metal matrix composite material difficultly. According to the technical scheme, the bottom of a crucible is provided with an electromagnetic stirrer, an opening of the crucible is provided with an ultrasonic amplitude rod, the crucible is communicated with a gas pressure tank through a gas conveying pipe provided with a reducing valve, and is communicated with a female die barrel through a liquid conveying pipe, an exhaust pipe provided with a valve is used for exhausting gas, the crucible and the female die barrel are placed in a first resistance furnace and a second resistance furnace to be heated, a coil is placed outside the second resistance furnace of the female die barrel, the upper portion of the female die barrel is sealed through a male die and an upper cushion block, and the lower portion of the female die barrel is sealed through a forming die and a lower cushion block. According to the preparing device and method, even dispersion of carbon nano tubes in metal liquid is achieved through an electromagnetic field and ultrasonic coupling, then the directional carbon nano tube reinforced metal matrix composite material is formed by means of the coupling function of magnetic filed induction and stress induction.

Description

technical field [0001] The invention relates to a metal-matrix composite material preparation device, in particular to a oriented carbon nanotube-reinforced metal-matrix composite material preparation device. It also relates to a method for preparing aligned carbon nanotube-reinforced metal-matrix composite materials using the device for preparing aligned carbon nanotube-reinforced metal-matrix composite materials. Background technique [0002] Metal matrix composites are favored because of their high elastic modulus, good toughness and impact resistance, low sensitivity to temperature changes, high electrical conductivity and thermal conductivity, etc. [0003] Generally, C fiber, Ti fiber, B fiber, Al 2 o 3 Short fibers, SiC whiskers, C particles, SiC particles, A1 2 o 3 Granules, B 4 C particles, Si 3 N 4 Granules, WC Granules, Mo 2 C particles, ZrO 2 Particles, ZrB 2 Particles, carbon nanotubes, graphite and other reinforcing phases are combined to obtain metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10B22D27/02
Inventor 李贺军梁军浩齐乐华关俊涛彭斌
Owner NORTHWESTERN POLYTECHNICAL UNIV
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