TORCH FOR A SINGLE-SOURCE BI-CATHODE TIG WELDING MACHINE

摘要

Torch (1) for a TIG welding machine connected to an electrical power source, comprising a coolant circuit (8) and defining, in the internal portion thereof, an outwardly open bore which is connected to a supply of inert shielding gas (12) and into which tungsten electrodes (20) acting as a cathode extend, said torch (1) comprising an insulated torch body (3), a diffuser (5) for the inert shielding gas and a discharge nozzle (6) screwed onto the diffuser (5), characterised in that the torch body (3), the diffuser (5) and, if applicable, the nozzle (6) are formed of metal elements, the torch body (3) comprising at least two wells (19) in which at least two tungsten electrodes (20) are mounted and held in place by means of clamping wedges (21).