PLASMA CUTTING DEVICE AND METHOD FOR COOLING PLASMA TORCH

PROBLEM TO BE SOLVED: To increase the flow rate of coolant supplied to the nozzle of a plasma torch, and to extend the service life of the plasma torch.SOLUTION: In the plasma torch (10), an electrode coolant passage (60, 84, 85, 86 and 64) which supplies the coolant to an electrode (80), and a nozz...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGUCHI YOSHIHIRO, MINONISHI MIKIO, MORIMOTO SHIGEO
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To increase the flow rate of coolant supplied to the nozzle of a plasma torch, and to extend the service life of the plasma torch.SOLUTION: In the plasma torch (10), an electrode coolant passage (60, 84, 85, 86 and 64) which supplies the coolant to an electrode (80), and a nozzle coolant passage (56, 70, 92, 72 and 68) which supplies the coolant to the nozzle (88) are provided separately as independent coolant passages which extend in parallel and are mutually electrically insulated from each other. The coolant is flowed in the nozzle coolant passage in a flow rate greater than that of the electrode coolant passage.