| 摘要 |
PROBLEM TO BE SOLVED: To facilitate replacement of consumables such as an electrode, a nozzle, etc., while suppressing complication and increase in cost of a plasma torch. SOLUTION: An electrode 3, an insulation guide 5 and a nozzle 7 are fitted together, these are mounted to a retainer cap 13. The electrode 3, the insulation guide 5, the nozzle 7 and the retainer cap 13 are connected to each other by O rings 93, 95, 97 with the connecting force in the extent to be separated by hand pulling. By mounting/demounting the retainer cap 13 on a torch main body, the electrode 3, the insulation guide 5 and the nozzle 7 are mounted/ demounted together on a torch main body.
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