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Metal powder preparation method and device based on plasma atomization technology

A metal powder and preparation device technology, applied in the direction of additive processing, etc., can solve the problems of mass production and low production efficiency of metal powder, and achieve the effect of avoiding collapse

Inactive Publication Date: 2017-09-19
加拿大艾浦莱斯有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is to provide a metal powder preparation method based on plasma atomization technology and its device, which can solve the problems of low production efficiency and mass production of metal powder in the prior art

Method used

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  • Metal powder preparation method and device based on plasma atomization technology
  • Metal powder preparation method and device based on plasma atomization technology
  • Metal powder preparation method and device based on plasma atomization technology

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as Figure 1-4 As shown, the metal powder preparation device based on plasma atomization technology includes a feeding chamber 1, an induction heating melting chamber 2, a plasma torch chamber 5, an atomizing chamber 7 and a powder collection chamber 8,

[0043] The upper end of the feeding chamber 1 is a dynamic sealing device 101. The interior of the feeding chamber 1 is equipped with a multi-channel wire continuous feeding mechanism and a straightening mechanism 102. The lower part of the feeding chamber 1 is an induction heating melting chamber 2. The feeding chamber 1 There is a partition 3 between the induction heating and melting chamber 2, a vertical wire guide pipe 4 runs through between the feeding chamber 1 and the induction heating and melting chamber 2, and the induction heating and melting chamber 2 is provided with an induction heating device And the magnetic confinement device, the induction heating device is an induction coil, the magnetic confinem...

Embodiment 2

[0049] Embodiment 2 Metal powder preparation method

[0050] The present embodiment selects 4 Ti-6Al-4V titanium alloy metal filaments 14 with a diameter of 10mm (such as figure 2 ), passing through the dynamic sealing device 101, the feeding mechanism and the straightening mechanism 102 respectively, the wire guide tube 4 transports the wire 14 to the induction heating melting chamber 2, and after the test is normal, turn off the power supply of the feeding system and close the feeding chamber . Then vacuumize the whole system, the vacuum degree reaches 1X10 -4 After Pa, high-purity argon is injected into the system to restore the gas pressure inside the equipment to normal pressure of 0.1Mpa. Turn on the induction heating device and the magnetic confinement device, and turn on the feeding device to make it work.

[0051] The metal wire 14 is vertically downward, preheated in the high-frequency electromagnetic field to close to the melting temperature, completely melted, ...

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Abstract

The invention discloses a method for preparing metal powder based on plasma atomization technology and a device thereof. The device includes a feeding chamber, an induction heating melting chamber, a plasma torch chamber, an atomization chamber and a powder collection chamber, and an induction heating device and a magnetic restraint device are arranged in the induction heating melting chamber. Frequency smelting technology, magnetic levitation technology and plasma atomization preparation technology are combined to maximize the effect of plasma atomization technology to prepare high-sphericity and high-quality metal particles. Compared with traditional plasma atomization preparation technology, it is guaranteed Under the premise of the sphericity and particle size of metal particles, the production volume of high melting point metal powder can be increased exponentially.

Description

technical field [0001] The invention belongs to the field of metal powder preparation, and in particular relates to a method for preparing metal powder based on plasma atomization technology and a device thereof. Background technique [0002] 3D printing technology prepares metal parts by melting metal powder under the action of heat sources such as electron beams and stacking them layer by layer, which is almost not limited by the complexity of the parts. Compared with traditional manufacturing processes, 3D printing technology can significantly reduce material, energy consumption and cost. Therefore, it has broad market prospects in aerospace, medical, vehicle and mold customization and other fields. [0003] The quality of metal powder directly affects the quality of manufactured metal parts. In order to ensure the quality of parts, it is necessary to use metal particles with high sphericity. In addition, the particle size of metal particles must also be controlled with...

Claims

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Application Information

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IPC IPC(8): B22F9/14B33Y70/00
CPCB22F9/14B22F2202/13B33Y70/00
Inventor 周春光张庆麟李军陈竹严圣军
Owner 加拿大艾浦莱斯有限公司
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