Abstract: A resistance spot welding method includes: performing test welding; and performing actual welding after the test welding, wherein in subsequent current passage in the test welding, current passage is performed by constant current control under a condition: 0.5 ? Vtp/Vtm ? 2.0 when tc<800 ms; 0.5?0.3·(tc?800)/800 ? Vtp/Vtm ? 2.0?0.5·(tc?800)/800 when 800 ms ? tc<1600 ms; and 0.2 ? Vtp/Vtm ? 1.5 when tc ? 1600 ms, and wherein in main current passage in the actual welding, adaptive control welding is performed, and in subsequent current passage in the actual welding, current passage is performed by constant current control under a condition: 0.8·Itp ? Imp ? 1.2·Itp.

Abstract: An electric range is provided that may include an elastic holder to fix a fuse and a sensor in a central portion of an induction heating unit disposed over/on/in an upper portion of a base plate, thereby stably fixing the fuse and sensor against external impact. In the electric range, an upper end of the sensor may come into close contact with a lower surface of a cover plate disposed over/on/in an upper portion of the induction heating unit, thereby stably measuring a temperature of the cover plate and absorbing an external impact.

Abstract: Disclosed are an automatic welding system and method for large structural parts based on hybrid robots and 3D vision. The system comprises a hybrid robot system composed of a mobile robot and an MDOF robot, a 3D vision system, and a welding system used for welding. The rough positioning technique based on a mobile platform and the accurate recognition and positioning technique based on high-accuracy 3D vision are combined, so the working range of the MDOF robot in the XYZ directions is expanded, and flexible welding of large structural parts is realized. The invention adopts 3D vision, thus having better error tolerance and lower requirements for the machining accuracy of workpieces, positioning accuracy of mobile robots and placement accuracy of the workpieces; and the cost is reduced, the flexibility is improved, the working range is expanded, labor is saved, production efficiency is improved, and welding quality is improved.

Abstract: A cap extractor for a welding gun includes a housing, a pair of springs, and first and second arms that are arranged between the springs. Each of the first and second arms have teeth that are configured to engage a welding cap. The first and second arms are configured to move relative to the housing in first and second directions that are transverse to one another by deflecting the springs.

Abstract: Systems and apparatus are disclosed relating to improved fluid supply systems. In some examples, the improved fluid supply systems use an electrically controllable proportional valve and a surge prevention process to prevent a surge of pressurized fluid at the end of a welding-type operation. In particular, the surge prevention process may coordinate closure of the proportional valve and an on/off solenoid valve so that pressure in the fluid flow path can equalize to an ambient pressure after a welding operation (and/or a post flow operation) has ended. This coordination ensures that there is no pressure buildup and/or associated surge of fluid when the on/off solenoid valve is next opened (e.g., at the start of the next welding operation).

Abstract: The present disclosure is directed to a multi-segment device, such as an intravascular guide wire. The multi-segment device includes an elongate first portion comprising a first metallic material, an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end by a solid-state weld, and a heat affected zone surrounding an interface of the weld where the first and second portions are joined together, wherein the heat affected zone has an average thickness of less than about 0.20 mm.

Abstract: In a method for regulating or controlling the conveyance speed of a wire composed of consumable material during a laser soldering or welding method, the wire is melted by a laser beam from a laser unit and is conveyed at a mean conveyance speed toward a workpiece to be processed, wherein a voltage between the wire and the workpiece is measured. A laser soldering or laser welding device carries out this method. In order to avoid at least relatively lengthy short-circuit breaking between the end of the wire and the workpiece, the conveyance speed of the wire, as a function of the measured voltage, is temporarily increased to a predetermined boost speed by increasing the conveyance speed to the predetermined boost speed when a defined voltage limit value is exceeded, and the conveyance speed is reduced again at the latest when the voltage limit value falls below.

Abstract: A system and method provide gasless, mechanized, field welding of an exterior of a tubular structure such as a pipeline, without the need for an enclosure. An embodiment consolidates some of the welding equipment on a skid for ease of transport to and from a remote worksite. The gasless weld may be achieved despite the presence of wind, by precisely controlling an arc voltage as disclosed. The footprint and weight of the system may be minimized, along with the associated labor, expense, and environmental impact otherwise incurred by conventional welding techniques using enclosures.

Abstract: A stove includes a heating unit, an adjustment unit and a grill grate. The adjustment unit includes two lifting units, a synchronizer, and a drive unit. Each lifting unit has a screw rod, a sliding block movable along the screw rod, and a lift frame mounted to the sliding block. The synchronizer connects the lifting units. The drive unit is connected to the screw rod of one of the lifting units and is operable to drive synchronized rotation of the screw rods through the synchronizer. The grill grate is supported by the lift frames for moving between a first position, where the grill grate is proximate to the heating unit, and a second position, where the grill grate is distal from the heating unit.

Abstract: A refrigerator includes a vacuum adiabatic body including a conductive resistance sheet providing a vacuum space that has a temperature between a temperature of an internal space and a temperature of an external space and is in a vacuum state, the conductive resistance sheet capable of resisting heat conduction between a first plate and a second plate, wherein at least one of the conductive resistance sheet and each of the first and second plates are welded to each other to create a welding part, wherein a plurality of regular beads are provided to a surface of the welding part, and wherein the plurality of regular beads includes: a parabolic inflection region provided at a center portion; linear regions respectively provided at both outsides of the inflection region; and edge regions respectively provided at outsides of the linear regions.

Abstract: Temperature measurement is described for a substrate carrier using a heater element array. In one example a method includes measuring a first combined current load of each of a plurality of heating elements in the electrostatic chuck, changing a power status of a first heating element of the plurality of heating elements, measuring a second combined current load of each of the plurality of heating elements after changing the power status of the first heating element, determining the difference between the first and second combined current loads, determining a temperature of the first heating element using the difference, and reverting the power status of the first heating element to that before the change and repeating changing power, measuring a current load, determining a difference, and determining a temperature for each of the other heating elements of the plurality to determine a temperature at each of the heating elements of the plurality.

Abstract: The invention belongs to the field of welding technology and discloses a CMT automatic overlaying method for opening in side wall of bimetallic composite pipes. The method includes: establishing a mathematical model of the opening in a side wall to be welded; Based on the mathematical model, determining the trajectory of the saddle line during overlaying; dividing the trajectory of the saddle line into several welding runs, all of which adopt the downslope welding process; establishing a three-dimensional model of the opening in the side wall to be welded and a CMT overlaying system simulation model; Based on the simulation model, planning the overlaying path of the CMT overlaying, and generating an overlaying offline instruction; Based on the offline instruction, performing CMT overlaying on the opening in the side wall to be welded according to the overlaying sequence, so as to obtain a weld overlay.

Abstract: A single-serve capsule for making a beverage, having a base element with a cavity that is free of a filter, and in which a raw beverage material is provided, the cavity including radially spaced and vertically oriented convexities, where a width defined between each of the plurality of convexities is wider than a width of each of plurality of convexities, the base element has a wall region extending between the flange and a bottom region of the base element with radially spaced and vertically oriented grooves, a width of the side wall defined between each of the plurality of grooves is wider than a width of each of plurality of grooves, the capsule has an identifier, which makes it possible to individualize the single-serve capsule, the identifier is a barcode on the wall region and on a bottom side of the flange.

Abstract: The present invention relates to glass for vehicles including a glass plate; an information transmitting/receiving area, defined in the glass, via which a device mounted in a vehicle transmits or receives information; and a film that heats the information transmitting/receiving area, the film being attached to an area overlapping the information transmitting/receiving area in an interior side of the glass plate in a vehicle in a planar view; wherein the film includes a substrate, a heating element formed on the substrate, and a busbar connected to the heating element; the film has a heating zone divided into two or more heating areas; and the two or more of the heating areas share at least one busbar and are connected in series.

Abstract: Disclosed example welding or cutting circuits include: an input leg including a capacitor coupled between a high bus and a low bus; a buck converter coupled in parallel with the input leg, the buck converter having a first transistor, a second transistor, and an output electrically coupled to a node between the first transistor and the second transistor, and wherein the buck converter is configured to convert input voltage to current in an inductor coupled to the output of the buck converter; and a steering leg coupled in parallel with the input leg, wherein the steering leg is configured to control a rate at which the current in the inductor decreases, and wherein a current detector provides current level indications to a hysteretic controller, the hysteretic controller providing signals to the first and second transistors that control the first and second transistors to control the voltage applied to the inductor.

Abstract: A resistance spot welding method comprises: performing test welding; and performing actual welding after the test welding, wherein the test welding is performed under each of two or more welding conditions. In the test welding, for each of the welding conditions, an electrode force parameter from when electrode force application to parts to be welded starts to when a set electrode force is reached before start of current passage and a time variation curve of an instantaneous amount of heat generated and a cumulative amount of heat generated are stored.

Abstract: A heating element for a vaporizer cartridge is provided. The vaporizer cartridge may include a reservoir containing vaporizable material and a wicking element in fluid communication with the reservoir. The heating element may include a heating portion, a cartridge contact, and a leg. The heating portion includes at least two tines spaced apart from one another. The cartridge contact may be in in electrical communication with a power source. The leg extends between the heating portion and the cartridge contact. The heating portion may be crimped around the wicking element such that the heating portion secures the wicking element to the heating element and contacts at least two surfaces of the wicking element.

Abstract: An aerosol-generating system includes a reservoir containing an aerosol-forming substrate. The system also includes first and second heating elements and first and second liquid transfer elements. The first and second heating elements are spaced apart from the reservoir. The first and second liquid transfer elements are configured to deliver aerosol-forming substrate from the reservoir to the heating elements. The first liquid transfer element has first and second end portions and a portion between the first and second end portions at the first heating element. The second liquid transfer element has first and second end portions and a portion between the first and second end portions at the second heating element. The portion of the first liquid transfer element at the first heating element may extend in a first direction. The portion of the second liquid transfer element at the second heating element may extend in a second direction.

Abstract: A laser welding mask and a method for facilitating laser welding are provided. The laser welding mask includes a guide plate, a number of clamp plungers, and a number of clamp springs. The guide plate is attached to a load plate. The guide plate defines a number of openings that extend from an upper surface to a lower surface. Each clamp plunger is disposed within one of the openings in the guide plate, and each clamp plunger defines at least one passage configured to pass a laser welding beam. At least one clamp spring is disposed between each clamp plunger and the load plate.

Abstract: A method of heat treating a workpiece, the method including projecting a laser beam from a laser source onto said workpiece, so as to produce a laser spot on said workpiece; projecting the laser spot onto different portions of said workpiece; and while projecting the laser spot, repetitively scanning the laser beam in two dimensions so as to produce a two-dimensional equivalent effective laser spot on said workpiece and thereby temper, reduce hardness of, enhance ductility of, and/or reduce brittleness of at least one of the different portions of the workpiece.