Long-lived plasma nozzles lined, methods of making the plasma nozzles, and methods of coating substrates using a spray gun with the plasma nozzles attached

摘要

PROBLEM TO BE SOLVED: To reduce a possibility of occurrence of crack on a nozzle-lining or in a nozzle hole, concerning a plasma-nozzle.SOLUTION: A plasma-nozzle includes a nozzle body, and a liner material arranged in the nozzle body. The liner material has a higher melt temperature than that of the nozzle body, and the liner material contains at least one selected from between a tungsten alloy having a sectional thickness (C) larger than either 0.25 mm or 0.5 mm, molybdenum, silver and iridium.SELECTED DRAWING: Figure 8