Title:
スラスタ支援プラズマ微粒化を使用した大量の超微細球状粉末の費用効率の良い生産方法
Document Type and Number:
Japanese Patent JP7436357
Kind Code:
B2
Abstract:
A metal powder plasma atomization process and apparatus comprises at least one plasma torch, a confinement chamber, a nozzle positioned downstream of the confinement chamber and a diffuser positioned downstream of the nozzle. The nozzle accelerates liquid metal particles produced by the at least one plasma torch and also plasma gas to supersonic velocity such that the liquid metal particles are sheared into finer powders. The diffuser provides a Shockwave to the plasma gas to increase temperature of the plasma in order to avoid stalactite formation at an exit of the nozzle. The process increases both production rate of the metal powder and the yield of −45 μm metal powder.
Inventors:
Christopher Alex Drvar Dion
François Plue
François Plue
Application Number:
JP2020502660A
Publication Date:
February 21, 2024
Filing Date:
July 23, 2018
Export Citation:
Assignee:
Pyrogenesis Canada Inc.
International Classes:
B22F9/14; B22F3/105; H05H1/26
Domestic Patent References:
| JP2018528328A | ||||
| JP2018524478A |
Foreign References:
| US5707419 | ||||
| WO2011054113A1 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mihiro
Tatsuhiko Abe
Shinya Mihiro
Tatsuhiko Abe
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