| 摘要 |
<p>A plasma cutting torch (1) extending about a main axis (X) and comprising an electrode (1), a nozzle (2), having a plasma outlet orifice (12), coaxial with the electrode (1), a diffuser (200) acting between the electrode and the nozzle; the torch comprising a gas feed system (4) for feeding gas into the plasma generation chamber (3) which is delimited by the electrode (1), the nozzle (2) and the diffuser (200) which comprises a plurality of channels (207) for putting the feed system (4) and the chamber (3) in fluid communication; labelling "A1" the distance, measured according to the direction (X), between an outlet section of the channels (207) and an inlet section of the orifice (12) and labelling "B1" the distance, measured according to the main axis (X), between an end section of the electrode (1) and the inlet section of the orifice (12), the ratio between "A1" and "B1" is greater than or equal to 3 and is less than or equal to 4.5, that is to say: 3 ‰¤ A �¢ 1 B �¢ 1 ‰¤ 4.5 .</p> |
