Electrodes for gas- and liquid-cooled plasma torches, arrangement of an electrode and a cooling tube, gas guide, plasma torch, method for guiding gas in a plasma torch and method for operating a plasma torch

摘要

The invention relates to an electrode (30) for a, in particular gas - cooled, plasma torch (10), in particular plasma cutting torch, the electrode comprising: an elongate electrode body (30b) having an open end (34) and a closed end (33) which has a Define longitudinal axis L, and an emissive insert (31) in the closed end (33), wherein from the open end (34) of the electrode body, a cavity (32; 32a, 32b) in the electrode body (30b) towards the closed end (33) and the cavity is fluidly connected to at least one opening (32c, 32d) in its wall (30a) or in the front solid portion of the closed end 33 with the longitudinal axis of the outside 37 of the electrode body, an assembly of the same and a cooling tube Gas guide, a plasma torch with selbiger / selbigen, a method for gas guidance in a plasma torch and a method for operating the plasma torch.