Abstract:
A welding torch system includes a diffuser assembly that includes a locking mechanism to receive a contact tip. Additionally, the welding torch system includes the contact tip, which includes locking elements configured to interact with the locking mechanism of the diffuser assembly to secure the contact tip within the diffuser assembly. Further, the contact tip is rotated within the diffuser assembly to securely align the locking elements with the locking mechanism.
Abstract:
A welding system (100) moves in a direction of travel (WD), the welding system includes at least one torch (322, 324) directed toward a first location. The at least one torch each contains an electrode (322A, 324A) used to facilitate a weld, wherein a primary zone (172) surrounds the electrodes in the first location. A secondary zone (174) is located behind the primary zone with respect to the direction of travel, wherein a second gas line delivers shielding gas toward the secondary zone.
Abstract:
Schweißgerätwechselsystem für eine Handhabungsvorrichtung mit einer Kupplungsvorrichtung mit einem ersten Kupplungselement, welches am distalen Ende einer Handhabungsvorrichtung angeordnet ist, und mit einem zweiten Kupplungselement, welches an das erste Kupplungselement koppelbar ist und an welcher wenigstens ein Schweißgerät anordenbar ist, wobei das erste Kupplungselement wenigstens ein Führungsmittel zur Führung und/oder Weiterleitung wenigstens eines Versorgungsmediums, insbesondere eines Schweißdrahtes, an die zweite Kupplungshälfte aufweist, welche wenigstens ein Aufnahmemittel zur Aufnahme und Weiterleitung des jeweiligen Versorgungsmediums an das Schweißgerät aufweist, und wobei das zweite Kupplungselement vollständig vom ersten Kupplungselement sowie die Aufnahmevorrichtung vom wenigstens einen Versorgungsmedium derart trennbar beziehungsweise entkoppelbar sind, dass das zweite Kupplungselement vom ersten Kupplungselement abnehmbar ist, wobei das wenigstens eine Versorgungsmedium weiterhin durch das Führungsmittel des ersten Kupplungselementes geführt ist.
Abstract:
A coated welding tip and nozzle assembly (34) is disclosed. The tip and the nozzle (50) are coated with a coating composition comprising titanium dioxide. The coating (60) provides resistance to adhesion and accumulation of weld spatter on the nozzle and tip and facilitates weld spatter removal. The coating (60) also protects against thermal damage of the nozzle (50) by-providing a thermal barrier.
Abstract:
A CTE modified braze composition that can be utilized to manufacture a strong, gastight joint where at least one of the joining members comprises a ceramic (e.g., a ceramic or a cermet). The braze composition is formulated so as to reduce the thermal stress that results from the mismatch of thermal expansion coefficients between a ceramic joining member and the braze or other joining members. The braze composition comprises a braze alloy in powder, paste or bulk form mixed with one or more particulate or fibrous fillers that exhibit a low (i.e., no more than 6 ppm/K) or negative coefficient of thermal expansion. The braze composition can be used to join members, at least one of which comprises ceramic, and to a composite member produced by joining the two or more members.
Abstract:
A plasma arc torch (10) is provided that comprises a set of torch consumable components secured to a torch head (12), wherein a supply of cooling fl uid flows coaxially through the torch to cool torch components and a supply of plasma gas and secondary gas flows through the torch to generate and stabilize a plasma stream for operations such as cutting workpieces. The torch consumable components, in part, comprise an electrode (100) and a tip (102) that include a variety of configurations for improved cooling, ele ctrical contact, and attachment to adjacent torch components. Further, a consumables cartridge is provided for ease of use and replacement of the torch consumable components. Additionally, methods of operating the plasma arc torch at relatively high current levels are also provided by the present invention.
Abstract:
The present invention refers to a welding torch for electrical arc welding processes, which comprises a contact tip through which passes a welding wire, and a shielding gas nozzle disposed around the contact tip, wherein the internal diameter of the shielding gas nozzle (5) is at most double the external diameter of the contact tip (2), and the contact tip (2) extends through an aperture (7) to the outside of the gas nozzle (5). Furthermore, the welding torch can present a welding fumes suction nozzle (8), the suction aperture (10) of which is near to aperture (7) of the gas nozzle (5) or in the same plane of it. The invention also refers to a gas nozzle shielding gas (5), the internal diameter of which is at most the double of the external diameter of the contact tip (2). The invention also refers to a contact tip, which is a cut piece of tube.
Abstract:
The invention relates to a process for cleaning a device for welding under protective gas in which a metal nozzle unit (5) and a sleeve (9) surrounding it, spaced from it and with a protector (13) fitted to their open end or made in one piece with the sleeve (9) are pushed together by a linear or radial movement by means of a displacement element. The invention also relates to a process for cleaning a device for welding under protective gas having no protector. In this cleaning method, a stripping device fitted on the insulator (27) towards the open end (11) of the sleeve (9) and bearing substantially on its inner wall and having an extension which is substantially smaller than that of the sleeve (9) between the insulator and the open end (11) of the sleeve is also moved in the device for welding under protective gas.
Abstract:
Apparatus, systems, processes, control systems, means and methods for near-weld gas purging and welding. A focused circumferential near-weld purge gas delivery system for pipeline welding. A near-weld purge rig which has a near-weld purge gas channel and which achieves a low oxygen concentration proximate to a pipe gap for welding. The gas used for purging is also directed against an interior surface of the pipe to be welded. The directed gas cools the pipe to a desired temperature.