B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 10/02 (2006.01) H05H 1/28 (2006.01) H05H 1/34 (2006.01)
Patent
CA 2093027
An improved plasma torch nozzle which has a substantially barrel-shaped body having a longitudinal opening therethrough for directing the flow of gas for a plasma arc from rearward portions of the body downstream to forward portions of the body and then out of a face at the forward portions to form a plasma arc in the presence of a sufficient electrical potential difference. The nozzle body particularly comprises a rear section for which the outer surface portions diverge with respect to the downstream direction, a center section for which the outer surface portions are cylindrical with respect to the downstream direction, and a forward section for which the outer surface portions converge with respect to the downstream direction so that the respective outer surface portions form a continuous outer surface for the nozzle body that encourages the flow of gases that is directed along the outer surface of the nozzle body to follow the outer surface and converge at the face of the nozzle body.
Buse de torche pour soudage au plasma, dont le corps, ayant la forme générale d'un tonneau, est percé longitudinalement pour permettre l'écoulement d'un gaz destiné à être plasmifié à l'extrémité aval sous l'action d'un arc provoqué par une différence de potentiel suffisante. Le corps de la buse comprend une section amont dont la surface extérieure est divergente par rapport au sens d'écoulement du gaz, une section médiane dont la surface extérieure forme un cylindre autour de l'axe d'écoulement et une section aval dont la surface extérieure est convergente par rapport au sens d'écoulement, la surface extérieure de ces trois sections ensemble formant une surface continue, de sorte que le flux de gaz arrivant à la buse suit étroitement cette surface et converge à l'extrémité aval de la buse.
Esab Welding Products Inc.
Sim & Mcburney
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