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The main processes of plasma spraying in metal powder production are described. The processes of obtaining metallic and non-metallic powders by sputtering wire under the influence of low-temperature plasma are described in detail, including four stages: 1 - formation of dispersed particles during the interaction of a plasma jet or compressed arc with the sprayed material; 2 - movement and heat exchange of particles in plasma flow, where particle acceleration and heating occurs; 3 - movement and heat exchange of particles in the medium, braking and cooling of powder particles occurs; The current-voltage characteristics of the electric arc are given in the range of 80–180A; argon or nitrogen are used as working gases at various pressures. Photographs of the plasma spraying process in air at different modes and with a plasma forming gas are presented.

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Investigation of Plasma Spraying Processes in Metal Powder Production

  • 会议论文

  • 发表日期：

    2025年

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  • А. Т. Gabdrakhmanov,
  • L. N. Shafigullin,
  • А. Т. Galiakbarov,
  • E. V. Panfilov,
  • N. V. Romanova

摘要

The main processes of plasma spraying in metal powder production are described. The processes of obtaining metallic and non-metallic powders by sputtering wire under the influence of low-temperature plasma are described in detail, including four stages: 1 - formation of dispersed particles during the interaction of a plasma jet or compressed arc with the sprayed material; 2 - movement and heat exchange of particles in plasma flow, where particle acceleration and heating occurs; 3 - movement and heat exchange of particles in the medium, braking and cooling of powder particles occurs; The current-voltage characteristics of the electric arc are given in the range of 80–180A; argon or nitrogen are used as working gases at various pressures. Photographs of the plasma spraying process in air at different modes and with a plasma forming gas are presented.