| 摘要 |
<p>A plasma torch for cutting, wherein a nozzle (2) can be protected from dross produced by piercing performed at the start of cutting and double arcs are prevented to improve the service life of the nozzle. In the plasma torch for cutting, the nozzle (2) constituting a secondary gas passage (8) is electrically insulated from a nozzle cap (4) and fixed to the outside of the nozzle cap (4), and an insulator (14) formed of an electrically insulating material is mounted in the secondary gas passage (8).</p> |
