Patent ID: 6525292
Filing Date: 2003-02-25
Classification: H05H

Abstract:
A cartridge (100) generating plasma for a plasma torch, having, centered on an axis AAâ€², an annular anode (1) comprising a central cavity (10) formed inside a central ring (123) of the anode (1), this central cavity (10) receiving a cathode (3) centred on AAâ€², means (2, 23, 4) for positioning the cathode (3), the anode (1) and the cathode (3) providing between them an annular space for producing an arc, plasmagene gas distribution means, the distributed gas circulating in the annular space between the cathode (3) and the anode (1), anode (1) cooling means, comprising particularly conduits for an anode (1) cooling fluid, these conduits having an inlet and an outlet, assembly means, comprising particularly a cathode (3) support (2), a cartridge characterised in that the cathode support (2) has a conductive part to bring the electrical currents necessary for the operation of the torch from a current input to the cathode (3), and in that the assembly means additionally comprise an assembler (5) the cathode (3) support (2), the assembler (5) and the annular anode (1) comprising hollow parts (24, 122) and projecting parts (51, 56) all centred parallel to the axis AAâ€², the projecting parts (51, 56) being fitted tightly into the hollow arts (24, 122).