Plasma arc torch electrode

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 10/00 (2006.01) H05H 1/28 (2006.01) H05H 1/34 (2006.01)

Patent

CA 2482911

A variety of electrodes for use in a plasma arc torch are provided that improve cooling between the electrode (100) and an adjacent cathodic element such as a cathode (22). At least one passageway (130) is formed between the electrode (100) and the cathode (22) for the flow of a fluid, e.g. cooling fluid, wherein the flow of the fluid is proximate, or through an adjacent vicinity of, electrical contact between the cathode and the electrode. The passageway is formed through the electrode, through the cathode, between the electrode and the cathode, and through a third element in the various forms of the present invention. Further, methods of operating a plasma arc torch using the electrodes according to the various forms of the invention are also provided.

La présente invention a trait à une variété d'électrodes utilisées dans un chalumeau à arc de plasma qui améliorent le refroidissement entre l'électrode (100) et un élément cathodique adjacent tel qu'une cathode (22). Il est prévu au moins un passage (130) entre l'électrode (100) et la cathode (22) pour la circulation d'un fluide, par exemple un fluide de refroidissement, dans lequel le fluide de refroidissement se trouve à proximité, ou via un voisinage adjacent, d'un contact électrique entre la cathode et l'électrode. Le passage est formé à travers l'électrode, à travers la cathode, entre l'électrode et la cathode, et à travers un troisième élément dans divers modes de réalisation de l'invention. En outre, l'invention a trait à des procédés d'utilisation d'un chalumeau à arc de plasma utilisant les électrode selon les différents modes de réalisation de l'invention.

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