METHOD FOR PLASMA CUTTING AND TORCH FOR PLASMA CUTTING

PROBLEM TO BE SOLVED: To improve the quality of cutting by minimizing a range of a thermal effect due to a plasma arc generated in the material to be cut in the case of executing a plasma cutting method. SOLUTION: A cooling gas 5 is injected to the vicinity of a cutting part 4 being a melted part of...

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Bibliographische Detailangaben
Hauptverfasser:	KOJO AKIRA, SAKAI DAIJI
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 improve the quality of cutting by minimizing a range of a thermal effect due to a plasma arc generated in the material to be cut in the case of executing a plasma cutting method. SOLUTION: A cooling gas 5 is injected to the vicinity of a cutting part 4 being a melted part of a base material formed on a material 2 to be cut by a plasma arc 3 injected toward the material 2 to be cut from a cutting torch 1. As for the cooling gas 5, carbon dioxide or a mixture of carbon dioxide and a reducing gas (e.g. hydrogen) is used.