Plasma cutting process and machine
AssigneeKomatsu Industries Corporation
InventorsYoshihiro Yamaguchi, Tetsuya Kabata, Kazuhiro Kuraoka, Takahiro Iriyama
Life of this patent
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Abstract
A plasma cutting machine is provided in which a dross adhesion inhibitor is jetted from a plasma torch toward the cutting start position (piercing position) of the object material. A dross adhesion inhibitor supply flow path for feeding the dross adhesion inhibitor is connected to an assist gas feeding line in which an assist gas for assisting cutting of the object material with the plasma arc flows.
Claims5
A plasma cutting process for cutting an object material with a plasma arc generated from a plasma torch, said process comprising:
- supplying a dross adhesion inhibitor into a plasma torch head;
- moving the dross adhesion inhibitor through the plasma torch head to an exhaust nozzle of the plasma torch head through which the plasma arc is formed;
- and
- jetting the dross adhesion inhibitor from the plasma torch head onto a cutting start position of the object material.
A plasma cutting machine comprising:
- a plasma torch head for generating a plasma arc for cutting an object material;
- a dross adhesion inhibitor supply unit for supplying a dross adhesion inhibitor into the plasma torch head;
- jetting means for jetting the dross adhesion inhibitor through an exhaust nozzle of the plasma torch head through which the plasma arc is formed onto a cutting start position of the object material.
Dependencies are inferred from the claim text.