Abstract: The invention relates to an electrode for an especially gas-cooled plasma torch, in particular plasma cutting torch, the electrode comprising: an elongated electrode body with an open end and a closed end, the ends defining a longitudinal axis L, and an emission insert in the closed end, a cavity extending in the electrode body from the open end of the electrode body towards the closed end, the cavity fluidically communicating with the outer face of the electrode body which is radial with regard to the longitudinal axis, via at least one opening in its wall or in the front solid portion of the closed end. The invention further relates to a system consisting of said electrode and cooling tube, to a gas conducting unit, a plasma torch comprising same, a method for conducting gas in a plasma torch and a method for operating the plasma torch.

Abstract: A method for conducting gas in a gas-cooled plasma torch wherein the plasma torch has a plasma torch body which holds an electrode with an open end and a closed end. A cavity extends from the open end in the direction of the closed end, and which, with a spacing in an axial direction, holds a nozzle by means of a nozzle holder. The nozzle has a central opening with an upstream inlet end, into which the electrode projects, and with an outlet end with a nozzle bore and is surrounded by a nozzle cap and/or a nozzle protection cap. The plasma torch body has an opening for a gas feeder, which opening is fluidically connected to a cooling tube which projects into the open end of the electrode.

Abstract: Nozzle for a plasma torch head, laser cutting head or plasma laser cutting head, arrangement composed of such a nozzle and of a nozzle protection cap, arrangement composed of such a nozzle and of an electrode, plasma torch head, laser cutting head or plasma laser cutting head having such a nozzle and/or having such an arrangement, plasma torch comprising such a plasma torch head, laser cutting head comprising such a nozzle and/or such an arrangement, plasma laser cutting head comprising such a nozzle and/or such an arrangement, method for plasma cutting, method for laser cutting and method for plasma laser cutting using the same.

Abstract: The invention relates to gas conducting unit for a gas-cooled plasma cutting torch, wherein the gas-conducting unit is single-part or multi-part tubular or annular. The gas-conducting unit comprises a single-part or multi-part tubular or annular gas-conducting unit body with a longitudinal axis L1. In a wall of the gas-conducting unit body, there are situated at least one opening, which is inclined by an angle ? in a range of ± 15° with respect to the longitudinal axis L1, and at least one second opening, which is inclined radially with respect to the longitudinal axis L1 or which, in a radial plane, is inclined at an angle ? in the range of ± 30°from the radial to the longitudinal axis L1.

Abstract: The invention relates to a method for conducting gas in a gas-cooled plasma torch wherein the plasma torch has a plasma torch body which holds an electrode with an open end and a closed end. A cavity extends from the open end in the direction of the closed end, and which, with a spacing in an axial direction, holds a nozzle by means of a nozzle holder. The nozzle has a central opening with an upstream inlet end, into which the electrode projects, and with an outlet end with a nozzle bore and is surrounded by a nozzle cap and/or a nozzle protection cap. The plasma torch body has an opening for a gas feeder, which opening is fluidically connected to a cooling tube which projects into the open end of the electrode.

Abstract: The invention related to a method for plasma cutting workpieces, using a plasma torch that has at least one plasma torch body, an electrode, and a nozzle.

Abstract: The invention relates to a wear part for an arc torch, plasma torch or plasma cutting torch, characterised in that the wear part or at least one part or a region of the wear part consists of an alloy formed from silver and zirconium, silver and hafnium, or silver and zirconium and hafnium.

Abstract: The invention relates to a plasma torch, in particular plasma cutting torch, in which at least one secondary medium is guided by at least one secondary feeder through a housing of the plasma torch to a nozzle protection cap opening and/or to further openings that are provided in a nozzle protection cap. In the at least one feeder, at least one valve for opening and closing the feeder is provided directly within the housing of the plasma torch, and wherein the at least one secondary feeder is divided into at least two parallel feeders through which the at least one media flows in the direction of the nozzle protection cap opening or the further openings, and at least two valves, which are each individually activatable, for opening and closing the at least two parallel feeders are provided within the housing.

Abstract: In the case of the nozzle protection cap (7) according to the invention for a plasma arc torch (1), is arranged and fastened at the outside on the tip of the plasma arc torch (1), at which a plasma jet emerges from the plasma arc torch (1) through nozzle-like openings (4a, 7a). The nozzle protection cap (7) is produced from an iron alloy including sulfur in a fraction of at least 0.05%.

Abstract: The invention relates to a plasma torch, in particular plasma cutting torch, in which at least one secondary medium is guided by at least one feeder through a housing of the plasma torch to a nozzle protection cap opening and/or to further openings that are provided in a nozzle protection cap. In the at least one feeder, at least one valve for opening and closing the feeder is provided directly within the housing of the plasma torch.

Abstract: Method for fitting or plugging a first connecting part into a second connecting part of a processing head for thermal material processing, the first connecting part having, on an encircling outer face, and/or the second connecting part having, on an encircling inner face, at least one slot, extending at least around a partial circumference, with a slot width B130, B230 and a slot depth T130, T230, T112, T120, which receives an O-ring or profile ring, extending around the entire circumference, with a cord size Sa, wherein, when the first connecting part is fitted or plugged into the second connecting part, the O-ring or profile ring is initially in contact with the opposite inner face or opposite outer face only around a partial circumference, which extends along the slot, or around a plurality of partial circumferences, which extend along the slot, and connecting parts and arrangements made up thereof.

Abstract: Nozzle for a plasma torch head, laser cutting head or plasma laser cutting head, arrangement composed of such a nozzle and of a nozzle protection cap, arrangement composed of such a nozzle and of an electrode, plasma torch head, laser cutting head or plasma laser cutting head having such a nozzle and/or having such an arrangement, plasma torch comprising such a plasma torch head, laser cutting head comprising such a nozzle and/or such an arrangement, plasma laser cutting head comprising such a nozzle and/or such an arrangement, method for plasma cutting, method for laser cutting and method for plasma laser cutting using the same.

Abstract: The invention relates to an electrode (30) for an especially gas-cooled plasma torch (10), in particular plasma cutting torch, the electrode comprising: an elongated electrode body (30b) with an open end (34) and a closed end (33), said ends defining a longitudinal axis L, and an emission insert (31) in the closed end (33), a cavity (32; 32a, 32b) extending in the electrode body (30b) from the open end (34) of the electrode body towards the closed end (33), said cavity fluidically communicating with the outer face (37) of the electrode body which is radial with regard to the longitudinal axis, via at least one opening (32c, 32d) in its wall (30a) or in the front solid portion of the closed end (33). The invention further relates to a system consisting of said electrode and cooling tube, to a gas conducting unit, a plasma torch comprising same, a method for conducting gas in a plasma torch and a method for operating the plasma torch.

Abstract: Nozzle for a liquid-cooled plasma arc torch head, and an assembly of a nozzle holder and such a nozzle and plasma arc torch head, and a plasma arc torch with the same.

Abstract: In the case of the nozzle protection cap (7) according to the invention for a plasma arc torch (1), is arranged and fastened at the outside on the tip of the plasma arc torch (1), at which a plasma jet emerges from the plasma arc torch (1) through nozzle-like openings (4a, 7a). The nozzle protection cap (7) is produced from an iron alloy including sulfur in a fraction of at least 0.05%.

Abstract: The invention relates to a single or multipart insulating component for a plasma torch, particularly a plasma cutting torch, for electrical insulation between at least two electrically conductive components of the plasma torch, characterized in that the insulating component consists of an electrically non-conductive and easily thermally conductive material, or at least one part thereof consists of an electrically non-conductive and easily thermally conductive material. The invention further relates to assemblies and plasma torches having the same and to a method for processing, plasma cutting and plasma welding.

Abstract: The invention relates to a single or multipart insulating component for a plasma torch, particularly a plasma cutting torch, for electrical insulation between at least two electrically conductive components of the plasma torch, characterized in that the insulating component consists of an electrically non-conductive and easily thermally conductive material, or at least one part thereof consists of an electrically non-conductive and easily thermally conductive material. The invention further relates to assemblies and plasma torches having the same and to a method for processing, plasma cutting and plasma welding.

Abstract: The invention relates to a method for the plasma cutting of workpieces. It is the object of the invention to provide possibilities with which improved cutting surfaces can be achieved in plasma cutting which do not require any reworking, or at least only a reduced reworking. In the method in accordance with the invention, a plasma cutting torch having at least one torch body, an electrode and a nozzle is used and the plasma jet is inclined or deflected at least before the traveling over of a workpiece edge at an angle ? with respect to the axis aligned perpendicular to the workpiece surface such that the emission position of the plasma jet from the workpiece is arranged at a spacing in the feed movement direction which is at most half the amount than is the case with a plasma jet incident perpendicular on the workpiece surface.

Abstract: Nozzle for a liquid-cooled plasma arc torch head, and an assembly of a nozzle holder and such a nozzle and plasma arc torch head, and a plasma arc torch with the same.

Abstract: An electrode holder for an arc plasma torch includes an elongate holder body. The holder body includes a holder end for receiving an electrode and a hollow interior. An internal thread is positioned in the hollow interior for screwing in a rear end of said cooling tube. A cylindrical inner surface adjoins the internal thread for centering the cooling tube relative to the electrode holder.