Patent ID: 9532440
Filing Date: 2016-12-27
CPC Classification: B23K,H05H

Claim Text:
1. A method for generating a plasma jet under atmospheric pressure for the surface treatment of workpieces, wherein the plasma jet is generated by electrically exciting a plasma-capable medium by means of an electric arc periodically ignited between a cathode and an anode constructed as a nozzle, and the plasma jet is directed through the nozzle in the direction of the surface to be treated, wherein the plasma-capable medium is preheated in a heating apparatus before the electrical excitation by means of the electric arc, wherein thermal excitation of the plasma-capable medium takes place separately from the electrical excitation by the electric arc, and wherein the temperature of the plasma jet directed out of the nozzle in the direction of the surface to be treated is regulated between 10° C. and 500° C.