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Method and device for preparing tungsten powder reinforced aluminum matrix composite

A composite material, enhanced aluminum-based technology, applied in metal material coating process, melt spraying, coating and other directions, can solve the problems of long process flow, many production processes, high density of tungsten powder, etc., to achieve shortened process flow, The effect of reducing the production process and reducing the production cost

Inactive Publication Date: 2015-09-02
GUANGDONG INST OF MATERIALS & PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of powder metallurgy method is that there are many production processes, long process flow and high cost
In addition, due to the high density and small particle size of tungsten powder, tungsten powder is prone to agglomeration, and it is difficult to mix tungsten powder with aluminum and aluminum alloy powder evenly. Therefore, it is also difficult to obtain tungsten powder reinforced aluminum with uniform distribution of tungsten powder by powder metallurgy matrix composite

Method used

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  • Method and device for preparing tungsten powder reinforced aluminum matrix composite
  • Method and device for preparing tungsten powder reinforced aluminum matrix composite

Examples

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Effect test

Embodiment 1

[0030] Adopt the present invention to prepare the pure aluminum matrix composite material that mass ratio content of tungsten powder is 15%, figure 1 with figure 2 It is a schematic diagram of the structure of the device used, and the preparation method is as follows:

[0031] Heating and melting industrial pure aluminum ingots in an intermediate frequency induction furnace and superheating to 750°C, refining the pure aluminum liquid with hexachloroethane and removing slag, then transferring the pure aluminum liquid to the atomization spray deposition device for aluminum or aluminum alloy liquid In the tundish, input high-pressure nitrogen, start the DC motor, drive the screw-type quantitative supplier to rotate through the DC motor, and supply the tungsten powder quantitatively to the high-pressure inert gas input pipe, and the pure aluminum liquid will flow out through the guide pipe downward, and the high-pressure inert gas Under the action of spraying, the pure aluminum ...

Embodiment 2

[0039] Adopt the present invention to prepare the 6063 aluminum alloy matrix composite material that the mass ratio content of tungsten powder is 10%, figure 1 with figure 2 It is a schematic diagram of the structure of the device used, and the preparation method is as follows:

[0040]Heat and melt industrial pure aluminum ingots in an intermediate frequency induction furnace and overheat to 800°C, then add industrial pure magnesium ingots with a mass percentage of 0.6% and industrial pure silicon with a mass percentage of 0.45%, stir and melt to form a 6061 aluminum alloy liquid, and use hexachloroethene After refining the 6061 aluminum alloy liquid and removing slag, transfer the 6061 aluminum alloy liquid to the tundish of the aluminum or aluminum alloy liquid atomization spray deposition device, input high-pressure argon gas, start the DC motor, and drive the screw type through the DC motor. The quantitative supplier rotates to quantitatively supply tungsten powder into...

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Abstract

The invention discloses a method and a device for preparing tungsten powder reinforced aluminum matrix composite. The method comprises the following steps: mounting a quantitative tungsten powder supply device on a high-pressure inert gas input pipe of a device for atomizing, spraying and depositing aluminum or aluminum alloy liquid, taking high-pressure inert gas as a flow carrying medium, spraying the tungsten powder to the surfaces of aluminum or aluminum alloy micro-droplets formed by atomizing, enabling the tungsten powder to disperse and attach onto the surfaces of the aluminum or aluminum alloy micro-droplets, then spraying and depositing the tungsten powder and the aluminum or aluminum alloy micro-droplets to a substrate and solidifying to prepare the tungsten powder reinforced aluminum matrix composite. The device comprises a device for atomizing, spraying and depositing aluminum or aluminum alloy liquid, wherein a quantitative tungsten powder supply device is mounted on a high-pressure inert gas input pipe of the device for atomizing, spraying and depositing aluminum or aluminum alloy liquid. By virtue of the method, the high-pressure inert gas is taken as the flow carrying medium for spraying the tungsten powder and attaching the tungsten powder onto the surfaces of the aluminum or aluminum alloy micro-droplets, then the tungsten powder and the aluminum or aluminum alloy micro-droplets are solidified to prepare the tungsten powder reinforced aluminum matrix composite; the agglomeration of the tungsten powder can be effectively prevented; the tungsten powder reinforced aluminum matrix composite with uniformly distributed tungsten powder is prepared.

Description

technical field [0001] The invention belongs to the technical field of aluminum-based composite material preparation, and in particular relates to a preparation method and device for a tungsten powder-reinforced aluminum-based composite material. Background technique [0002] Particle-reinforced aluminum matrix composites are metal matrix composites formed by adding particle-reinforced phases to aluminum or aluminum alloys. Particle-reinforced aluminum-based composites have the advantages of light weight, low density, good plasticity of aluminum and aluminum alloys, and high strength, high temperature resistance, and wear resistance of the particle-reinforced phase. As a high-performance structural material, particle-reinforced aluminum matrix composites are widely used in the manufacture of spacecraft structural parts, aircraft parts, auto parts, microwave circuit plug-ins, navigation system precision parts, turbocharged propellers, electronic packaging devices, etc. At pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/12C23C4/06
Inventor 郑开宏王顺成徐静王娟王海艳
Owner GUANGDONG INST OF MATERIALS & PROCESSING
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