Ultrasonic atomization preparation device and method for spherical metal powder

A metal powder and ultrasonic atomization technology, which is applied to the ultrasonic atomization preparation device and preparation field of spherical metal powder, can solve the problems of unsuitable metal powder, cavitation corrosion, etc., and achieves narrow particle size distribution, high sphericity, and purity. high effect

Active Publication Date: 2013-12-11
航天科工(长沙)新材料研究院有限公司
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Problems solved by technology

Chinese patent application CN201180053612.1 discloses an ultrasonic atomization device, Chinese patent application CN200980112649.X discloses an ultrasonic atomization device, and Chinese patent application CN201010122821.4 discloses a combined ultrasonic atomization device. These three patents Both are suitable for the atomization of various solutions, but not for the preparation of metal powders
Since the head of the ultrasonic concentrator need

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  • Ultrasonic atomization preparation device and method for spherical metal powder
  • Ultrasonic atomization preparation device and method for spherical metal powder
  • Ultrasonic atomization preparation device and method for spherical metal powder

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto, and for process parameters not specified in particular, conventional techniques can be referred to.

[0048] An ultrasonic atomization preparation device for spherical metal powder, combined with figure 2 , image 3 As shown, it includes a plasma arc generating system, an ultrasonic vibration system, a vacuum pump 8 and a powder collection cylinder 9 . The plasma arc generating system includes a plasma gun 1 , a metal rod 2 , a rotating lifting mechanism 3 and a main power supply 4 . The plasma gun 1 includes a cathode 14 , a nozzle 15 , a gun body 16 , an air pipe 12 , a water pipe 17 and a gland 18 . The metal rod 2 is used as an anode. The rotating lifting mechanism 3 realizes the rotating and lifting functions of the metal material rod 2 . The main power supply 4 includes a high frequency po...

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Abstract

The invention discloses an ultrasonic atomization preparation device and method for spherical metal powder. The ultrasonic atomization preparation device for the spherical metal powder comprises an atomization chamber, metal bar materials arranged inside the atomization chamber, and a plasma arc generation system arranged above the metal bar materials, wherein the metal bar materials are installed on an ultrasonic vibration system, the ultrasonic vibration system is arranged on a rotary lifting mechanism, and a powder collection cylinder is arranged below the metal bar materials. The method comprises the following steps that (1) metal bars are installed; (2) the atomization chamber is vacuumized and then is filled with inert gas; (3) the metal bars are stricken through plasma arcs; (4) the rotary lifting mechanism rotates the metal bars; (5) the ultrasonic vibration system vibrates the metal bars; (6) the metal bars are atomized into metal liquid drops, and the metal liquid drops fly away from the metal bars and are condensed into the metal powder. The ultrasonic atomization preparation device and method for the spherical metal powder can prepare the spherical metal powder with any component, and the metal powder is fine in particle diameter and narrow in particle size distribution.

Description

technical field [0001] The invention relates to the technical field of preparation of metal powder materials, in particular to an ultrasonic atomization preparation device and a preparation method of spherical metal powder. Background technique [0002] As an important class of industrial raw materials, metal powders are increasingly used in communications, electronics, automobiles, aerospace and other fields. With the development of technologies such as metal injection molding, thermal spraying, metal rapid prototyping, and electronic surface mount, the performance requirements for the particle size, purity, and shape of metal powder materials are gradually increasing, which in turn pushes the powder preparation technology towards narrow The direction of particle size, low oxygen content, high efficiency and low cost is developed. [0003] At present, the main methods of preparing metal powder are: mechanical pulverization, plasma rotating electrode method and gas atomizat...

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Application Information

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IPC IPC(8): B22F9/08
Inventor 周朝辉张刚王仑武
Owner 航天科工(长沙)新材料研究院有限公司
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