9results about "Cooled electrode holders" patented technology

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.

The invention discloses a broadband adjustable rocking electric arc welding method, a welding torch and application. The welding torch comprises a large-bending conducting rod mechanism with a bending angle and a single-side nozzle integrally matched with the large-bending conducting rod mechanism for use. A bent nozzle or a straight-barrel-shaped nozzle is fixed to the bent side of the large-bending conducting rod mechanism, a single gas circuit or double gas circuits are arranged in the nozzle, inner side gas flow of a lower end opening of the nozzle can cool the lower portion of the large-bending conducting rod mechanism, and outer side gas flow protects a welding high-temperature area. The flow distribution of the welding shielding gas on the front side and the rear side of an electric arc can be adjusted by adjusting the nozzle inner bending angle or the overall front inclination angle of the nozzle arranged on the single side, so that the welding gas shielding effect on a high-temperature welding seam is improved; by adjusting the backward included angle between the electrode and the center line of the welding seam, the electric arc pointing direction and the molten drop transition direction can be adjusted so as to improve the welding process stability when the electric arc swings at a fast frequency, the electric arc swinging frequency is adjusted within the wide range of 1.0-35 Hz, and narrow-gap argon arc welding or non-gap gas shielded welding of the broadband adjustable swinging electric arc is achieved.

A jacketed consumable for a liquid cooled plasma arc torch is provided. The jacketed consumable includes an electrode, a swirl ring fixedly attached to and disposed circumferentially about a distal end of the electrode, and a nozzle fixedly attached to the swirl ring, the nozzle disposed circumferentially about the distal end of the electrode with a portion of the swirl ring positioned between the electrode and the nozzle. The consumable further includes a consumable jacket fixedly attached to and disposed circumferentially about a distal end of the nozzle and a shroud fixedly attached to and disposed circumferentially about a distal end of the consumable jacket. A proximal end of the consumable jacket is adapted to (i) extend axially past a proximal end of the shroud and (ii) extend radially beyond a radial extent of the shroud.

The invention provides a novel high-strength reinforced heat dissipation composite electrode holder. The novel high-strength reinforced heat dissipation composite electrode holder comprises a shell, a jaw assembly and a welding handle. The interior of the shell is fixedly connected with a jaw assembly; the welding handle is rotationally connected to the interior of the shell; a spring is arranged between the welding handle and the shell and used for clamping a welding rod through the welding handle and the jaw assembly, and the jaw assembly comprises a structural layer and a conductive layer. The structural layer is made of steel and is fixed in the shell; the conductive layer is made of copper, is arranged on the upper side of the structural layer and is in contact with the welding handle; the conductive layer and the structural layer are connected with each other through diffusion welding; a clamping piece used for further fixing the welding handle is arranged between the welding handle and the shell.

The invention relates to a cooling system (1) for cooling a welding component (SK), said cooling system comprising: at least one container (2) for cooling liquid (3); a cooling circuit (4) having corresponding cooling lines (5); at least one pump (6) arranged in the cooling circuit (4) for conveying the cooling liquid (3) through the cooling lines (5) in the cooling circuit (4); at least one heat exchanger (7) arranged in a cooling line (5); and at least one filter (8) which is arranged in the cooling circuit (4). Said filter is formed by a hydrocyclone (9) with a rotationally symmetrical hollow body (10) comprising: an upper cylindrical section (11) that has a tangential supply line (12) for the cooling liquid (3) and an axially arranged immersion pipe (13) for discharging the filtered cooling liquid (3) upward; and a lower conically tapering section (14) that has an outlet (15) for the particles (P) separated from the cooling liquid (3). The invention also relates to a welding component (SK) comprising such a cooling system (1). Advantageously, the at least one hydrocyclone (9) is arranged and integrated in the container (2) for the cooling liquid (3).

Submerged arc welding torches and systems to resistively preheat electrode wire are disclosed. A disclosed example submerged arc welding torch includes: a first contact tip configured to transfer weld current and preheating current to the wire; a second contact tip configured to conduct the preheating current to the wire; an air-cooled first conductive body portion configured to receive the weld current and to conduct the weld current and the preheating current to the first contact tip; an air-cooled second conductive body portion configured to receive the preheating current and to conduct the preheating current to the second contact tip; and an insulator coupled between the first and second conductive body portions.

A welding torch 10 is provided for use in a Gas Metal Arc Welding (GMAW) process. The welding torch 10 includes a torch body 12, a welding tip 16 extending from the torch body 12, and a detachable nozzle 22 which substantially surrounds the welding tip 16 in use to direct gas around the welding tip 16 and onto a workpiece, the nozzle 22 having a front end which faces the workpiece in use and a rear end which attaches to the torch body 12 in use, in which a ring 24 is provided, the ring 24 being substantially axially fixed to the nozzle 22 at the rear end of the nozzle 22, and the ring 24 being rotatable with respect to the nozzle 22, the ring 24 having a screw thread and the torch body having a corresponding screw thread 26, for fixing the nozzle 22 to the torch body 12.

The invention provides a hydraulic system for a workpiece machining device, a workpiece machining device comprising such a hydraulic system, and a method for operating a workpiece machining device. The hydraulic system (100; 200; 300) comprises: a valve device (150; 250) which is switchable between at least one cooling position and at least one working position, wherein in the cooling position, a coolant flow emanating from the coolant pump (181) is directed by the valve device (150; 250) into a cooling path (120) for cooling the workpiece processing device (1000; 2000; 3000), and wherein in the working position the coolant flow is directed by the valve device (150; 250) for hydraulic interaction with at least one actuator (140; 340).

A jacketed consumable cartridge is provided for a liquid cooled plasma arc torch. The jacketed consumable cartridge comprises an electrode, a swirl ring securely affixed to and disposed circumferentially about a distal end of the electrode, and a nozzle securely affixed to the swirl ring, the nozzle disposed circumferentially about the distal end of the electrode with a portion of the swirl ring located therebetween. The cartridge also comprises a cartridge jacket securely affixed to and disposed circumferentially about a distal end of the nozzle and a shield securely affixed to and disposed circumferentially about a distal end of the cartridge jacket. A proximal end of the cartridge jacket is adapted to extend (i) axially past a proximal end of the shield and (ii) radially beyond a radial extent of the shield.