Patent ID: 9730306
Date: 2017-08-08
CPC Classifications: H05H

Claim:
1. A nozzle for a thermal spray gun comprising: a central bore comprising a conical bore and a cylindrical bore; the conical bore being delimited by a conical wall surface in a conical bore section; the cylindrical bore being delimited by a cylindrical wall surface in a cylindrical bore section; cooling channels surrounding at least a part of the conical bore section and at least a part of the cylindrical bore section; and a coolable peripheral outer wall surface of the cylindrical bore section is located between terminal ends of the cooling channels and a nozzle outlet end, whereby the nozzle is configured so that heat is more rapidly removable from the conical wall surface than from the cylindrical wall surface, and wherein a radial thickness of the conical bore section is greater than that of the cylindrical bore section.