A non-transferred plasma arc system, which is provided with a non-transferred plasma torch (1) that is provided with a non-consumable electrode (101) as a negative electrode and an insert chip as a positive electrode, the insert chip being cooled by a circulated coolant (W) and the insert chip releasing a plasma arc onto a workpiece. The plasma arc torch (1) comprises a TIG welding torch (100) that is provided with the non-consumable electrode (101), whereby an arc is generated between the workpiece and said electrode (101), and a torch nozzle (105), which releases a shield gas toward an arc-generated weld pool of the workpiece. The plasma arc torch (1) is provided with an attachment (51) that is detachably attached to the TIG welding torch (100) while surrounding the periphery of the torch nozzle (105) and that functions as the insert chip, whereby a non-transferred plasma arc is inexpensively and easily used.

The invention relates to a device for thermally coating a surface, which has at least one housing (6), a cathode (9), a primary gas distributor (11), a secondary gas distributor (12), electrically and thermally acting insulation elements (13, 14, 16), and an anode, which is designed as a consumable wire and is guided into a nozzle (19, 21) by means of a wire guide (18), wherein the nozzle (19, 21) is mounted in a centered manner and has openings (23) arranged radially in one plane on one of its sides (22).

A plasma gas water ionization purification system that purifies waste water into clean water by removing inert waste solids from the waste water. The plasma gas water ionization purification system includes an ionization chamber and a plasma emitting device. The ionization chamber receives the waste water. The plasma emitting device is operatively connected to the ionization chamber and generates a stream of plasma to heat the waste water in the ionization chamber to generate purified steam from the waste water, thereby resulting in separation of the purified steam from the inert waste solids in the waste water, with the purified steam then being condensed into liquid form forming the clean water, which is collected for later use.

A non-radioactive atmospheric pressure device for ionization of analytes comprises an atmospheric pressure chamber having an inlet for carrier gas, a first electrode at one end, and a counter-electrode at the other end of the chamber for creating an electrical discharge in the carrier gas thus creating metastable neutral excited-state species. Optionally, a grid is provided to generate electrons or ions by contact with the excited-state species. The carrier gas containing the excited-state species or the electrons generated therefrom is directed at an analyte at atmospheric pressure near ground potential to form analyte ions.

A non-transferred plasma arc system, which is provided with a non-transferred plasma torch (1) that is provided with a non-consumable electrode (101) as a negative electrode and an insert chip as a positive electrode, the insert chip being cooled by a circulated coolant (W) and the insert chip releasing a plasma arc onto a workpiece. The plasma arc torch (1) comprises a TIG welding torch (100) that is provided with the non-consumable electrode (101), whereby an arc is generated between the workpiece and said electrode (101), and a torch nozzle (105), which releases a shield gas toward an arc-generated weld pool of the workpiece. The plasma arc torch (1) is provided with an attachment (51) that is detachably attached to the TIG welding torch (100) while surrounding the periphery of the torch nozzle (105) and that functions as the insert chip, whereby a non-transferred plasma arc is inexpensively and easily used.

Embodiments of the present invention include a plasma cutting torch and plasma cutting torch components, such as electrodes, cathodes, retainer caps, etc. having a unique physical features, including threads relationships. Embodiments include torch components having modified square thread with a specialized thread configuration including a particular relationship between thread crest and root, and included angles of thread sidewalls.

A plasma torch includes a nozzle with an opening and an electrode disposed interiorly of the nozzle and configured to generate a plasma arc and direct the plasma arc through the opening of the nozzle. The electrode includes an electrode body and an emissive insert disposed in the electrode body. The emissive insert is movable relative to the electrode body.

A discharge may occur in a location in the circumferential direction of a tip portion of an electrode rod, and such a discharge may cause localized consumption of the electrode rod. A plasma generator includes: a nozzle made of metal, the nozzle including a gas passage through which a process gas flows, and an emission port from which the process gas is emitted through the gas passage; and an electrode rod inserted into the gas passage, a voltage being applied between the nozzle and the electrode rod. The plasma generator includes a rotation mechanism that rotates the nozzle about an axis of the electrode rod as a rotating axis. An inner wall surface of the gas passage includes a projection that projects toward the tip portion of the electrode rod.