PLASMA TORCH, PLASMA TORCH NOZZLE, AND PLASMA WORKING MACHINE

Provided is a plasma torch, in which a conductive path for a pilot arc to a nozzle is reliably formed to facilitate the removal of the nozzle, thereby to eliminate the difficulty in positioning the center axis of the nozzle. A nozzle (16) has an outer flange (62), the upper face of which provides a...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGUCHI YOSHIHIRO, KURAOKA KAZUHIRO
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:	Provided is a plasma torch, in which a conductive path for a pilot arc to a nozzle is reliably formed to facilitate the removal of the nozzle, thereby to eliminate the difficulty in positioning the center axis of the nozzle. A nozzle (16) has an outer flange (62), the upper face of which provides a conductive face (64) directed to face a nozzle stand (30). This nozzle stand (30) has elastic electric contacts (54a and 54b). These electric contacts (54a and 54b) abut against the outer flange (62) (or the conductive face (64)) of the nozzle, thereby to form a conductive path for the pilot arc. When the nozzle (16) is attached to the nozzle stand (30), the electric contacts (54a and 54b) abut against the outer flange (62) (or the conductive face (64)) of the nozzle, thereby to form the conductive path for the pilot arc and to push the outer flange (62) (or the conductive face (64)) of the nozzle substantially in parallel with the center axis (16A) of the nozzle and in the direction away from the nozzle stand (30).