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Nano ceramic-aluminum composite powder and preparation method and device thereof

A technology for preparing aluminum composite materials and powders, which is applied in the field of composite material manufacturing, can solve the problems of difficult wettability between the reinforced phase and the liquid phase metal, poor interface reaction, high manufacturing cost, etc., and achieve reduced reaction activation energy, excellent performance, and operating costs low effect

Inactive Publication Date: 2019-09-20
WUHAN NANRUI ELECTRIC POWER ENG TECH EQUIP +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages that the strengthening phase and the liquid phase metal are not easy to wet, and it is difficult to distribute the particles uniformly in the liquid phase, and it will also cause adverse interface reactions.
Moreover, the method has complicated steps, large equipment investment and high manufacturing cost.

Method used

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  • Nano ceramic-aluminum composite powder and preparation method and device thereof
  • Nano ceramic-aluminum composite powder and preparation method and device thereof
  • Nano ceramic-aluminum composite powder and preparation method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1, see figure 1 :

[0034] The invention provides a nano-ceramic-aluminum composite material powder and a preparation method thereof, comprising the following steps:

[0035] 1) Place a mixture of 5ml of 6061 aluminum alloy powder and 95ml of silicon carbide nanoparticles in a vacuum drying oven, and dry at 100°C for 6h;

[0036] 2) In a glove box filled with argon gas (oxygen content below 1000ppm), put the dried mixture into a ball mill jar, add 1 wt. Type ball mill for high-energy ball milling, the grinding balls are stainless steel balls with a diameter of 20 mm, and the mass ratio of the grinding balls and the mixture is 20:1: firstly, the ball mill is carried out at 200 rpm for 2 hours, so that the mixture of the aluminum alloy powder and ceramic nanoparticles is uniformly mixed, and then Ball milling at 500rpm for 12h;

[0037] 3) In the glove box filled with argon, open the ball mill tank and transfer it to the transition chamber for passivation: vacu...

Embodiment 2

[0039] Example 2, see figure 2 :

[0040] The invention provides a nano-ceramic-aluminum composite material powder and a preparation method thereof, comprising the following steps:

[0041] 1) Place a mixture of 3ml of 7075 aluminum alloy powder and 97ml of silicon carbide nanoparticles in a vacuum drying oven, and dry at 120°C for 3h;

[0042] 2) In a glove box filled with argon gas (oxygen content below 1000ppm), put the dried mixture into a ball mill jar, add 1 wt. Type ball mill for high-energy ball milling, the grinding balls are stainless steel balls with a diameter of 20 mm, and the mass ratio of the grinding balls and the mixture is 20:1: firstly, the ball mill is carried out at 200 rpm for 2 hours, so that the mixture of the aluminum alloy powder and ceramic nanoparticles is uniformly mixed, and then Ball milling at 500rpm for 12h;

[0043] 3) In the glove box filled with argon, open the ball mill tank and transfer it to the transition chamber for passivation: vac...

Embodiment 3

[0045] Example 3, see image 3 :

[0046] The invention provides a nano-ceramic-aluminum composite material powder and a preparation method thereof, comprising the following steps:

[0047] 1) Place a mixture of 8ml of 7075 aluminum alloy powder and 92ml of silicon carbide nanoparticles in a vacuum drying oven, and dry at 80°C for 12h;

[0048] 2) In a glove box filled with argon gas (oxygen content below 1000ppm), put the dried mixture into a ball mill jar, add 1 wt. Type ball mill for high-energy ball milling, the grinding balls are stainless steel balls with a diameter of 20 mm, and the mass ratio of the grinding balls and the mixture is 20:1: firstly, the ball mill is carried out at 200 rpm for 2 hours, so that the mixture of the aluminum alloy powder and ceramic nanoparticles is uniformly mixed, and then Ball milling at 500rpm for 12h;

[0049] 3) In the glove box filled with argon, open the ball mill jar and transfer it to the transition chamber for passivation: vacuu...

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Abstract

The invention provides nano ceramic-aluminum composite powder and a preparation method and device thereof. The nano ceramic-aluminum composite powder is prepared from following components by volume including 1-10 parts of aluminum alloy powder and 90-99 parts of ceramic nano particles, wherein the aluminum alloy powder is pure aluminum or 6061 aluminum alloy or 2024 aluminum alloy or 7075 aluminum alloy, the ceramic nano particles are silicon carbide or aluminum oxide or boron nitride or titanium diboride with the grain diameter of 1-50 nm, and the product is obtained after drying, ball-milling and passivating are completed. The product is high in added value, the raw materials are cheap, the preparation method is efficient, the equipment is simple, the grain diameter and the structure of the final product can be adjusted and controlled by adjusting and controlling the ball-milling time and the proportions of the raw materials, and industrial large-scale production is facilitated.

Description

Technical field [0001] The invention relates to the technical field of composite material manufacturing, and in particular to a nano-ceramic aluminum composite material powder and a preparation method and device thereof. Background technique [0002] Metal matrix composites originated in the late 1950s and have now developed into an important engineering application material. Particle-reinforced metal matrix composites mostly use metal or alloy as the matrix and ceramic particles as the reinforcing phase. They combine the high plasticity of the metal matrix and the high strength of the ceramic reinforcing phase. They have good comprehensive performance advantages, including high specific strength and high elastic modulus. strength, high fatigue strength, high creep resistance, high wear resistance and low thermal expansion rate, etc., it has been widely used in automobile manufacturing, aviation, shipbuilding and other fields. [0003] With the development of powder metallu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/04
CPCB22F1/0003B22F9/04B22F2009/043
Inventor 汤超蔡炜王利民何卫姚辉孟晓明吴细毛楼平陈思敏陈胜男
Owner WUHAN NANRUI ELECTRIC POWER ENG TECH EQUIP
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