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Plasma flame spray gun method and apparatus with adjustable ratio of radial and tangential plasma gas flow

  • US 4,674,683 A
  • Filed: 05/06/1986
  • Issued: 06/23/1987
  • Est. Priority Date: 05/06/1986
  • Status: Expired due to Fees
First Claim
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1. A plasma generating method for use with a plasma gun having a hollow cylindrical anode nozzle member and a cylindrical cathode member coaxially disposed and spaced relative to one another so as to define an interior passage for plasma-forming gas, said passage having one end extending to the exterior of said gun, an inner end formed by an annular gas inlet plenum proximate to the cathode and an intermediate segment extending between the cathode and anode members, said method including:

  • introducing plasma-forming gas radially inwardly into the gas inlet plenum and introducing plasma-forming gas with a tangential directional component into the gas inlet plenum while selectively regulating the proportions of gas introduced radially and tangentially to thereby establish, and detemine the degree of, vortical flow of gas through the gun.

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