Exothermic cutting electrode having a central fluid oxidant...

Details Exothermic cutting electrode having a central fluid oxidant... Exothermic cutting electrode having a central fluid oxidant...

B - Operations, Transporting

23

K

327/28

B23K 9/24 (2006.01) B23K 35/02 (2006.01) E21B 7/14 (2006.01)

Patent

CA 1180770

ABSTRACT An exothermic cutting electrode or burning bar having an oxidizable metal fluid conduit (tube) sur- rounded by a mass of metal similar to that of the fluid tube, the entire structure covered with an outer oxidiz- able metallic tube and/or an electrically insulating water impervious cover, either end of the electrode being adapted for connection to a source of oxidizing fluid and electric current, so that, an arc can be struck between a workpiece and the free end of the electrode to produce a cutting flame. By proper selec- tion of the type and mass of the materials of construc- tion the electrode will burn after the electric current has been turned off.

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