| 摘要 |
<p>An object of the present invention is to prevent deposition or adhesion of a molten spray material on or to the inner wall of a plasma generation chamber, an electrode, and a plasma jet jetting hole. Another object of the invention is to melt the spray material jetted through the spray material jetting hole at high thermal efficiency, to thereby enhance yield of coating film. Still another object of the invention is to prevent reflection of the spray material by the outer periphery of plasma flame, penetration of the spray material through plasma flame, and scattering of the spray material caused by reflection or penetration, due to the differences in particle diameter, mass, etc. of the spray material. A cathode 8 and an anode nozzle 2 form a pair. A front end 3 of the anode nozzle is provided with three or more plasma jet jetting holes 4, and a spray material jetting hole 5 is disposed at the center of an area surrounded by the plasma jet jetting holes 4. The spray material jetted through the jetting hole 5 is fed into the center axis of a complex plasma arc 31 or a complex plasma jet 32.</p> |
