Title:
3D PRINTING SPHERICAL POWDER PREPARATION METHOD UTILIZING PLASMA
Document Type and Number:
WIPO Patent Application WO/2018/121688
Kind Code:
A1
Abstract:
The invention discloses a 3D printing spherical powder preparation method utilizing plasma, the method comprising: employing a metal powder, a pre-alloyed powder, or a ceramic powder as raw materials; feeding the raw material powders into a high-temperature plasma flame; melting the powders to provide liquid drops to form spheres by the effect of surface tension; cooling the same to obtain a 3D printing powder. The plasma flame has a temperature of 10000-30000°C, and power of 15-100 kW. The method is implemented without employing a plurality of processes in a conventional gas spray method, and is simple in process and high in efficiency, and produces no dust pollution. The powder prepared by the method has a spherical surface and favorable fluidity, and is low in cost.
Inventors:
JIANG MINDE (CN)
Application Number:
PCT/CN2017/119529
Publication Date:
July 05, 2018
Filing Date:
December 28, 2017
Export Citation:
Assignee:
JIANG MINDE (CN)
International Classes:
B22F1/065
Foreign References:
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| US4162283A | 1979-07-24 | |||
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Attorney, Agent or Firm:
BEIJING ORIGINTELLIGENCE IP LAW FIRM (CN)
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