Plasma burner for metal cutting or welding

摘要

The plasma burner has a housing and set into the lower section is a ring shaped anode (30) and concentric with this is a cathode (26). The relative axial position may be adjusted. The anode has seals (98,100) to form an annular space (76) for cooling fluid. The fluid is circulated through formed channels (84,88). An arc is generated between the anode and electrode to form a plasma which is emitted from the nozzle (36).