Abstract: A fully automated plasma sheet metal cutter that can be integrated into a HVAC coil-line and which increases the precision of cutting, decreases the time it takes to cut a particular component sheet metal part, and offers flexibility in cutting different sized and shaped holes or openings. Further, since the system is fully automated, it eliminates the error or cost attributed to a portion of the cutting process that heretofore has been associated with a manual laborer.

Abstract: A modular direct current power source is provided. One welding power supply system includes a plurality of hysteretic buck converters coupled in parallel. The hysteretic buck converters are configured to receive a common input and to provide combined output power to a common load based upon the common input.

Abstract: A mobile work site having a deployed position and a stowed position for travel is disclosed. Importantly, a first ever vacuum system is configured with permanent piping to the trailer. A vacuum boom is further provided for added versatility. The invention has further been designed with optimal size in mind so that a bulky configuration is made unnecessary. Further the design provides a large amount of horizontal surface area for measuring and planner tables, feeder tables and cutting tables. Additionally, multiple electrical outlets are made available to eliminate any need for long cords. Also, dual, separate and redundant electrical circuits are provided to power the entire trailer. Racks are included herein for transporting lumber and trim materials.

Abstract: Embodiments of the present invention include systems and methods of using a plasma arc torch to cut holes and contours in workpieces having varying thickness and material properties. The systems and methods of the present invention allow for the cutting of holes and contours without the need for using secondary processing by using particular overburn, tail out and/or cutting parameters.

Abstract: An opening radial dimension is set as a radial direction permissible dimension K of the metal coil as expressed by the following equation or lower. K = Yp × Z 2 ? EI ? R 2 ? ( ? - sin ? ? ? ? ? cos ? ? ? ) Wherein: K is a radial direction permissible dimension at the load action point position in mm; Yp is a yield stress of the metal sheet, in kgf/mm2; Z is a section modulus of the metal sheet, in mm3; R=(a metal coil radius r)?½(the plate thickness t of the metal sheet), in mm; E is a Young's modulus of the metal sheet, in kgf/mm2; I is a second moment of area of the metal sheet in mm4; and ? is an angle in radians about the axis of the metal coil from the load action point to the nearest restraining roll along a rewind direction of the metal coil.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recycling magnetic material. One of the systems includes a system for harvesting a waste magnet from an end-of-life product, the system comprising a positioning mechanism that defines a recess to receive and locate the end-of-life product relative to the positioning mechanism, the end-of-life product including the waste magnet, a separating station to substantially separate a portion of the end-of-life product containing the waste magnet from the remainder of the end-of-life product when the positioning mechanism moves the respective end-of-life product through the separating station, and a transport station that receives the portion of the end-of-life product containing the waste magnet from the positioning mechanism when the positioning mechanism moves the respective end-of-life product to the transport station.

Abstract: A protective shell for surrounding a portion of a body of a handheld plasma torch includes a first and second shell section. The plasma torch body includes a handle, a head extending from the handle and a torch tip extending from the head. The first shell section is structurally independent from an outer surface of the plasma torch body. The second shell section is structurally independent from the outer surface of the plasma torch body and is capable of being secured to the first shell section such that, in combination, the first and second shell sections surround the torch head and provide (i) structural protection to the torch head and (ii) thermal insulation to the torch head, wherein the first and second shell sections are electrically insulated relative to the torch head.

Abstract: Methods, devices and systems for laser-supported plasma cutting or plasma welding of a workpiece. In one aspect, a method includes producing a plasma beam which extends in an expansion direction between an electrode and a processing location on the workpiece, the plasma beam having, with respect to a center axis of the plasma beam that extends in the expansion direction, an inner central region and an outer edge region, and supplying laser radiation to the outer edge region of the plasma beam. The laser radiation supplied to the outer edge region extends parallel with the center axis of the plasma beam.

Abstract: A plasma system includes a plasma arc torch, a cylindrical tube and an eductor. The plasma arc torch includes a cylindrical vessel having a first end and a second end, a first tangential inlet/outlet connected to or proximate to the first end, a second tangential inlet/outlet connected to or proximate to the second end, an electrode housing connected to the first end such that a first electrode is (a) aligned with a longitudinal axis of the cylindrical vessel, and (b) extends into the cylindrical vessel, and a hollow electrode nozzle connected to the second end of the cylindrical vessel. The cylindrical tube is attached to the hollow electrode nozzle and aligned with the longitudinal axis, the cylindrical tube having a side inlet and a radio frequency coil disposed around or embedded within the cylindrical tube. The eductor is attached to the cylindrical tube and aligned with the longitudinal axis.

Abstract: A method of controlling a position of a plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, which is a function of a torch height; piercing the workpiece with the plasma arc torch; rotating the plasma arc torch about its center of rotation to a desired cutting angle; translating the plasma arc torch along at least one of X, Y, and Z axes to maintain a torch center point; and translating the plasma arc torch along at least one of the X, Y and Z axes to achieve a resultant displacement along a longitudinal axis of the plasma arc torch to maintain a desired torch height.

Abstract: A method of controlling the position of a tilt/tilt style plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, wherein the bevel pivot length is a function of a torch height; piercing the workpiece with the plasma arc torch; adjusting a position of the plasma arc torch by at least one linear offset value based on the bevel pivot length; rotating the plasma arc torch about its center of rotation to the desired cutting angle and maintaining a torch center point; and translating the plasma arc along its longitudinal axis to maintain a desired arc voltage between the plasma arc torch and the workpiece.

Abstract: Systems and methods are provided for a torch power system using a multi-stage compressor. In one embodiment, a system includes a torch power unit that includes a compressor having multiple compression stages. A method of operation is provided that includes compressing a gas via a multi-stage compressor in a torch power unit. A method of manufacturing a torch power unit is provided that includes providing a multi-stage compressor for a torch power unit and mounting the multi-stage compressor inside an enclosure of the torch power unit. Another system is provided that includes a plasma cutting circuit, a multi-stage compressor, a motor coupled to the compressor, and a compressor controller.

Abstract: The invention features methods and apparatuses for establishing operational settings of a plasma arc cutting system. A plasma power supply includes a user selectable control. The user selectable control enables selection of a single cutting persona that establishes at least a current, a gas pressure or gas flow rate, and an operational mode of the plasma arc cutting system.

Abstract: Plume shield shroud (10) for a plasma gun (30) includes a substantially tubular member (14) comprising an axial length, a plume entry end (11), and a plume exit end (13). The shroud (10) is adapted to be mounted to a plasma gun (30). A method of protecting, confining or shielding of a gas plume of a plasma gun (30) includes mounting (20) a gas plume shroud (10) on the plasma gun (30) such that the shroud (10) is sized and configured to substantially surround at least a portion of the gas plume.

Abstract: A plasma arc cutting system includes a power supply and a plasma torch attachable to the power supply. The plasma torch generates a plasma arc for cutting a workpiece. A reader is associated with the plasma torch. The reader is capable of reading stored data from an identification device located on a cartridge or a consumable component of the plasma arc cutting system. A controller is within the plasma arc cutting system and in communication with the power supply. The controller is capable of automatically establishing operating parameters of the plasma arc cutting system based upon the data stored on the identification device. An override feature allows a user of the plasma arc cutting system to override the automatically established operating parameters of the torch and to input user selected operating parameters.

Abstract: A plurality of cutout members are cut out from a plate blank by a plasma arc generated from a plasma torch by a method including a piercing step and a cutting step. In the piercing step, an aperture is formed on an outer peripheral side of a cutout member by maintaining the plasma torch at a first height from the plate blank on the outer peripheral side of the cutout member while the plasma arc is generated from the plasma torch and by moving the plasma torch relative to the plate blank in a horizontal direction. In the cutting step, a continuous cutting groove is formed along an outer contour of the cutout member by setting the plasma torch at a second height lower than the first height and by moving the plasma torch in the horizontal direction along an incision part and a processing line continuing to the incision part.

Abstract: A plasma cutting or welding system includes a power input. The power input is configured to be coupled to a plurality of multipronged input plugs. Each of the multipronged input plugs corresponds to an input voltage. The power supply also includes a user input device for selecting an operating current. The user input device is subdivided into a plurality of current ranges. Each of the current ranges includes an iconic representation of at least one multipronged input plug.

Abstract: Methods, devices and systems for detecting an incomplete cutting action when cutting a workpiece with a high-energy beam are disclosed. In one aspect, a method includes taking an image of a region of the workpiece to be monitored, the region including an interaction region of the high-energy beam with the workpiece, evaluating the image taken in order to detect pooled slag at an end of the interaction region opposite a cutting front, and detecting whether a related cutting action is incomplete based on an occurrence of detection of pooled slag.

Abstract: A portable plasma arc torch system can be used for processing materials. The system includes a replaceable or rechargeable power source and replaceable or rechargeable gas source. A controller communicates with at least one of the power source or the gas source. A plasma delivery device received via the controller current from the power source and gas from the gas source to generate a plasma arc at an output of the plasma delivery device. The plasma arc can be used to process materials such as metallic workpieces. The plasma arc torch can include a wearable portable assembly which includes the replaceable or rechargeable power and gas source. A plasma delivery device receives current from the power source in the assembly and gas from the gas source in the assembly to generate a plasma arc.

Abstract: A method of operating a plasma arc torch system includes placing a work piece to be cut on a table of the plasma arc torch system, wherein at least a portion of the work piece has a planer surface facing away from the table. A plasma arc torch is positioned adjacent the planer surface of the work piece using a positioning apparatus, wherein the positioning apparatus has at least five degrees of freedom about which it can move the plasma arc torch relative the work piece for cutting the work piece on the table. The method further includes angling the torch relative the planer surface of the work piece such that the torch is held at an angle of between about 1 and about 4 degrees from perpendicular with the planer surface to back burn a produced kerf such that a kerf edge is perpendicular relative the planer surface of the work piece. Additionally, the planer surface of the work piece is calculated by contacting the work piece with the torch at least three times.

Abstract: Systems and methods are provided for a torch power system using a multi-stage compressor. In one embodiment, a system includes a torch power unit that includes a compressor having multiple compression stages. A method of operation is provided that includes compressing a gas via a multi-stage compressor in a torch power unit. A method of manufacturing a torch power unit is provided that includes providing a multi-stage compressor for a torch power unit and mounting the multi-stage compressor inside an enclosure of the torch power unit. Another system is provided that includes a plasma cutting circuit, a multi-stage compressor, a motor coupled to the compressor, and a compressor controller.

Abstract: A portable plasma cutting system includes a power supply and a torch attachable to the power supply. The torch generates a plasma arc for cutting a workpiece. A gas valve is disposed in the system or the torch. The gas valve establishes a gas flow rate or a gas pressure in the torch. A controller is within the system and in communication with the power supply. The controller is capable of automatically manipulating the gas valve to establish the gas flow rate or pressure based upon a predetermined operating condition. A user activated switch is in communication with the controller. The switch has a first setting which causes the controller to automatically establish the gas flow rate or pressure based upon the predetermined operating condition, and a second setting which causes the controller to establish one of a user-determined gas flow rate or a user-determined gas pressure.

Abstract: A welding-type device has wireless communications to transmit wireless signals comprising at least identification information. The information may be transmitted either automatically or in response to request signals. Such a welding-type device may be configured to communicate with other welding-type devices, a monitoring device, or both. A wireless communication system has at least one welding-type device, at least one wireless communication assembly, and at least one monitoring device and is capable of assisting a user in preventing theft of welding-type devices.

Abstract: A fully automated plasma sheet metal cutter that can be integrated into a HVAC coil-line and which increases the precision of cutting, decreases the time it takes to cut a particular component sheet metal part, and offers flexibility in cutting different sized and shaped holes or openings. Further, since the system is fully automated, it eliminates the error or cost attributed to a portion of the cutting process that heretofore has been associated with a manual laborer.

Abstract: An above plate coolant containment and recovery system for a machine having at least one machining head having a cutting tool in the form of a machining spindle with coolant supplied to the tooling and is designed for containing machining coolant during machining. The system includes a coolant guard apparatus and waste removal assembly. The coolant guard contains and separates coolant fluid as used during wet cutting machining for providing a dry cutting environment beyond the coolant guard apparatus. The coolant guard apparatus includes at least one shaped containment area formed with a substantially upright perimeter wall located on top of the plate to be cut to form the contained area, whereby the waste removal assembly, which is fluidly connected to the coolant guard apparatus, causes the removal of the used coolant and machining solid waste without leaking beyond the containment area.

Abstract: A system for providing a dynamically controlled plasma cutting system. The plasma cutting system includes a proportional valve and a sensing device arrangement and a controller connected to this arrangement. The system is configured to dynamically control gas flow in a plasma torch. The system measures gas pressure at a proportional valve and makes necessary gas pressure adjustments in the system by way of controlling a drive signal sent to the proportional valve to control gas flow.

Abstract: A plasma torch having a torch handle is provided. The plasma torch handle may be formed from a soft material and a hard material. Additionally, the plasma torch handle includes a thumb contour formed from the soft material and a finger contour formed from the soft material. In one embodiment, the plasma torch handle forms an angle of about 80° with the torch head. Plasma cutting systems having the plasma torch and handle are also provided.

Abstract: A connector assembly for coupling a plasma torch to a receptacle including a connector body configured to receive a mating connector body. The connector body is attachable to a power supply or a plasma arc torch. One or more circumferentially shaped blades extend axially from a surface of the connector body and form a blade ring. One or more gaps can be disposed relative to the surface of the connector body. The plurality of gaps are defined by and between the circumferentially shaped blades. A distance of the gaps between the circumferentially shaped blades extends along a portion of the circumference of the blade ring. The plurality of gaps can be asymmetrically distributed about the blade ring to facilitate proper rotational alignment, and are shaped to align with corresponding circumferentially shaped blades of the mating connector body.

Abstract: An improved electrode for use in a plasma arc torch. The electrode includes an electrode body, a cavity in a front face at a first end of the electrode body, and an insert disposed in the cavity. The first end of the electrode body is formed of high purity copper containing at least 99.81% copper. The insert has a first end and a second end and is formed of a high emissivity material. A diameter of the first end of the insert is less than a diameter of a second end of the insert. An electrode is compressed to retain the insert using radial compression. The invention also includes a method for forming the electrode, and a method of operation of an electrode in a plasma torch.

Abstract: Devices and methods for indicating power on a torch. In one example, a welding or plasma cutting torch includes an indicator coupled to the torch. The torch also includes control circuitry coupled to the indicator and configured to provide a first signal and a second signal to the indicator. The indicator is configured to receive the first signal when at least one of welding power and arc starting power from a power supply is available at the torch and to receive the second signal when the at least one of active welding power and the arc starting power from the power supply is not available at the torch.

Abstract: A system and method for automatically controlling gas pressure for a plasma cutter includes a plasma torch, a gas supply system to provide a pressurized gas to the plasma torch, and a proportional valve configured to regulate the pressurized gas. The proportional valve includes a body, a valve seat positioned therein and defining a valve orifice, and a plunger having a mating surface on one end that mates with the valve seat and the orifice and a pressure receiving surface on an opposite end. The proportional valve also includes an inlet to receive the pressurized gas and distribute the pressurized gas to the valve orifice and the pressure receiving surface of the plunger, an electrical solenoid having a chamber to electro-magnetically translate the plunger therein, and a bias urging the plunger toward the valve orifice in conjunction with the pressurized gas when electrical power is reduced to the electrical solenoid.

Abstract: A plasma gun with two gap electrodes on opposite ends of a chamber of ablative material such as an ablative polymer. The gun ejects an ablative plasma at supersonic speed. A divergent nozzle spreads the plasma jet to fill a gap between electrodes of a main arc device, such as an arc crowbar or a high voltage power switch. The plasma triggers the main arc device by lowering the impedance of the main arc gap via the ablative plasma to provide a conductive path between the main electrodes. This provides faster triggering and requires less trigger energy than previous arc triggers. It also provides a more conductive initial main arc than previously possible. The initial properties of the main arc are controllable by the plasma properties, which are in turn controllable by design parameters of the ablative plasma gun.

Abstract: A lattice pallet 13 having a large number of supporters for placing a plate 14 is installed to a table 12 so as to be freely fittable and removable. Bringing in of the plate 14 is performed by the method of raising the lattice pallet 13 with a crane with the plate 14 already having been loaded upon the lattice pallet 13 in a different location, transporting them over the table 12, and lowering them down onto the table 12. Directly after cutting has been completed, the lattice pallet 12 is raised and separated from the table 12 with the manufactured product and the left over material carried upon it and is taken away to a different location, and another lattice pallet 13 with another plate 14 mounted upon it is brought in with the crane upon the table 12, and the task of cutting this other plate 14 is commenced.

Abstract: Methods and systems for housing a consumable storage bin in addition to structural, thermal management, pneumatic, and/or electronic system components in a single multifunctional component within a plasma cutting power supply are provided. One embodiment of the present disclosure relates to a consumable storage bin, which fits into a consumable storage area in the power supply unit and is accessible to a user. In one embodiment, the consumable storage bin may be eliminated, leaving only the consumable storage area in which racks, snaps, friction-fit retention features, and so forth, may be placed to hold the consumables and ensure easy user access.

Abstract: In a main circuit 11 of the plasma cutter power supply device 6, a plurality of DC power units 14-1, . . . 14-n of low capacity are connected in parallel on their DC output sides, and are connected to a plasma torch 20. Each power unit 14-1, . . . 14-n can operate asynchronously and independently from each other. The power supply control device 6 controls the number of power units to be operated, and the intensity of output electrical current at which each of them is to be operated, according to the cutting conditions (the nature of the material to be cut, its thickness, and the cutting speed) and according to the number of power units which can be operated. If some of the power units are faulty, the power supply control device 6 controls the cutting conditions which can be accepted, according to the number of normal power units.

Abstract: An automated method for cutting a plurality of hole features using a plasma arc torch system can be implemented on a computer numerical controller. The automated method can include the steps of: a) cutting a lead-in for a hole feature using a lead-in command speed based on a diameter of that hole feature and b) cutting a perimeter for the hole feature using a perimeter command speed greater than the corresponding lead-in command speed for the hole feature. The automated method can also include the step c) of repeating steps a) and b) for each additional hole feature having a same diameter or a different diameter.

Abstract: An electrode for a plasma torch and a plasma torch head comprise an elongated electrode holder with a front surface on the electrode tip and a hole arranged in the electrode tip along a central axis through the electrode holder, and an emission insert arranged in the hole such that an emission surface of the emission insert is exposed. The emission surface is set back relative to the front surface of the electrode holder. An electrode for a plasma torch and a plasma torch head also comprise an electrode socket and an electrode holder, the electrode socket having an internal thread, and the electrode holder having an external thread and an O-ring in a groove in the cylindrical outer surface. The electrode holder is screwed together with the electrode socket via the external thread and the internal thread and sealed by means of the O-ring.

Abstract: A plasma arc cutting system includes a power supply comprising a multi-pulse transformer and a plurality of semiconductor switches directly connected to a bank of capacitors, and a thermal regulation system connected to the power supply and configured to cool the multi-pulse transformer. The thermal regulation system includes a cold plate in direct contact with the semiconductor switches; a fluid conduit disposed within the cold plate; and a pump connected to the conduit and configured to direct a coolant fluid through the conduit. The power supply has at least one of the following operating requirements: (i) a weight to power ratio of approximately 22.4 pounds per kilowatt; (ii) a volume to power ratio of approximately 1366 cubic inches per kilowatt; (iii) an average semiconductor device case temperature of approximately 100 degrees Centigrade during a cutting operation; (iv) a maximum transformer temperature of about 133 degrees Centigrade during a cutting operation.

Abstract: The invention features methods and apparatuses for cutting a section of a pipe having a non-linear longitudinal axis. A mounting structure attaches to a first portion of the pipe. A track is connected to the mounting structure and defines a drive plane. A moveable structure is coupled to the track and configured to move circumferentially along the track. A tool holder is connected to the moveable structure and positions a cutting tool relative to a cutting plane in a second portion of the section of pipe, the cutting plane substantially perpendicular to the non-linear longitudinal axis at a cutting location on the pipe. The mounting structure adjusts to position the track such that the drive plane is parallel to the cutting plane, separated from the cutting plane, substantially non-perpendicular to the non-linear longitudinal axis at the first portion on the pipe.

Abstract: The invention features methods and apparatuses for establishing operational settings of a plasma arc cutting system automatically using replaceable cartridges. A replaceable cartridge for use with a plasma arc cutting system includes a housing, a connection mechanism for coupling the housing to a plasma arc torch, an arc constrictor connected to the housing, an arc emitter connected to the housing, and an identification mechanism disposed relative to the housing and configured to communicate information to a reader of the plasma arc cutting system and automatically set at least one operating parameter of the plasma arc cutting system.

Abstract: Systems and methods relating to securing a torch assembly and a work lead assembly to a plasma cutting power supply are provided. The present disclosure relates to a system and method that allows the torch assembly and the work lead assembly to be readily replaced by the user since the power supply unit need not be opened or disassembled for removal. The present disclosure provides methods and systems for removably securing both the torch assembly and the work lead assembly to the plasma cutting power supply. In one embodiment, the torch assembly and the work lead assembly may be communicatively coupled to the plasma cutting power supply unit via a single cable and a single connector. The connection between the first connector and the first port may be of the quick disconnectable type. The connection between the second connector and the second port may be of the twist lock type, such as a dinse style connector.

Abstract: A system and method for providing a high power density plasma cutting/welding-type system is disclosed. The plasma cutting system includes a housing and a power source disposed within the housing constructed to generate plasma cutting power. The plasma cutting system also includes a plasma torch actuated by a trigger and connected to the power source to produce a cutting arc. The plasma cutting system is constructed such that it has a power-to-weight ratio of at least 550 Watts per kilogram (W/kg).

Abstract: An anti-collision device for a plasma vertical cutting gun including a lifting frame of a plasma cutting machine; a connection mechanism; a fixing plate of a cutting gun fixed on the connection mechanism; a concave support plate connected with the lifting frame of the plasma cutting machine; and a proximity switch mounted on the concave support plate. The connection mechanism is mounted between the lifting frame of the plasma cutting machine and the fixing plate of the cutting gun. A contact surface between the connection mechanism and the concave support plate matches. One side of a joint plane between the connection mechanism and the concave support plate is of ferromagnetic materials and the other side is provided with a magnet, thereby attracting each other to realize a magnetic connection. The anti-collision device has comprehensive functions, convenient installation, reasonable structure, and short response time in case of impact.

Abstract: An automatic compound feeding and recalling laser processing equipment comprising a laser processing machine, a laser mechanism for laser processing and a working platform being disposed in the laser processing machine; a feeding machine and a recalling machine disposing at two opposite ends of the laser processing machine respectively. A feeding shaft is disposed in the feeding machine for unreeling a roll of to-be-processed strip workpiece so that the strip workpiece is passed through the working platform to be processed by laser. A recalling shaft is disposed in the recalling machine for reeling the processed strip workpiece. Thereby, the laser processing can be performed continuously and mass production can be achieved speedily.

Abstract: [PROBLEMS] To reduce the generation of fume in cutting a material to be cut typified by a steel plate with plasma.

Abstract: Systems and methods relating to securing a torch assembly and a work lead assembly to a plasma cutting power supply are provided. The present disclosure relates to a system and method that allows the torch assembly and the work lead assembly to be readily replaced by the user since the power supply unit need not be opened or disassembled for removal. The present disclosure provides methods and systems for removably securing both the torch assembly and the work lead assembly to the plasma cutting power supply. In one embodiment, the torch assembly and the work lead assembly may be communicatively coupled to the plasma cutting power supply unit via a single cable and a single connector. The connection between the first connector and the first port may be of the quick disconnectable type. The connection between the second connector and the second port may be of the twist lock type, such as a dinse style connector.

Abstract: An electrode for a contact start plasma arc torch includes an elongated electrode body formed of an electrically conductive material. The electrode body is movable relative to the torch. A resilient element, contacting a proximal end of the electrode body, is used for imparting a separation force to the electrode body. The electrode body is adapted to overcome the separation force and engage a contact element of the torch when the torch is operated in a transferred arc mode.

Abstract: A plasma arc torch both cutting and marking of metal workpieces includes a plasma nozzle having a plasma nozzle orifice through which an electric arc from an electrode and a stream of plasma gas are emitted toward a workpiece, and a liquid-injection shield cup that injects liquid tangentially inwardly to the arc and stream of plasma gas. A power supply is operable to selectively deliver electrical power to the electrode at either a low power level suitable for marking of a workpiece or a high power level suitable for workpiece cutting. The torch may be selectively operated to mark at the low power level, with a plasma marking gas being delivered to the plasma gas passage, or to cut at the high power level, with a plasma cutting gas being delivered to the plasma gas passage, and liquid being delivered to the liquid injection passage for both cutting and marking.

Abstract: The invention relates to a heating element (25) for liquids to be vaporized as well as a burner (6) of a steam cutting device (1) and a burner (38) of a power-generating device, the element being designed as an induction heater (47) comprising one coil (25a). In order to improve vaporization, the coil (25a) of the induction heater (47) is enclosed in a hybrid construction which is composed of a main part (31) with laterally extending webs (33), and which consists of an easily magnetizable material (35) and a thermally highly-conductive material, a covering element (32) consisting of nanocrystalline materials being arranged on the webs (33), and the easily magnetizable material (35) being designed to be installed on a thermally highly-conductive material (37) of a vaporizer (21).

Abstract: An electrode for a contact start plasma arc torch includes an elongated electrode body formed of an electrically conductive material. The electrode body is movable relative to the torch. The electrode and torch can include a contact element having a first surface in electrical communication with the power contact and a second surface characterized by (i) physical contact with the electrode body during transferred arc mode and (ii) absence of physical contact with the electrode body during initiation of a pilot arc.