Abstract: A diffractive optical element for imposing a phase distribution on a transverse beam profile of a laser beam includes surface elements that adjoin one another and form a sheet-like grating structure. Each surface element is assigned a phase shift value. The phase shift values define a two-dimensional phase distribution. The two-dimensional phase distribution has a beam center position, which defines a radial direction in the sheet-like grating structure. The surface elements are assigned to a plurality of angle segments. Each angle segment has an azimuthal segment width with respect to the beam center position. The phase shift values in the angle segments form radially symmetrical phase profiles respectively with respect to the beam center position. The radially symmetrical phase profiles form in the radial direction grating functions that have a same grating period. A segment grating phase is assigned to each of the grating functions.

Abstract: A metal-cored electrode for welding to form a weld bead on a ferrous material, which weld bead includes at least 35 wt. % nickel. The metal-cored electrode includes a metal sheath surrounding a core. The core includes greater than 35 wt. % nickel.

Abstract: A surface treatment method is for processing a surface of a substrate. The method includes irradiating a surface having unevenness with a laser beam satisfying all of the three following requirements: a power density in a range with a radius of 25 ?m from a center of a laser beam spot is 1.0×103 to 1.0×105 kW/cm2; a power density of an entire laser beam spot is 0.08 to 0.12 times the power density in the range with the radius of 25 ?m from the center of the laser beam spot; and an action time in the range with the radius of 25 ?m from the center of the laser beam spot is 1.7×10-6 to 1.0×10-5 seconds. The method leaves a certain roughness on the surface of the substrate while removing fine and sharp protrusions on the surface.

Abstract: A water jet laser processing machine (100) is provided with a nozzle (26) that can eject a water column (34) and introduce a laser beam into the water column (34), a pump (40) that supplies pressurized water to the nozzle (26), a pressure sensor (42) that detects the pressure of the water supplied from the pump (40) to the nozzle (26), a storage unit (52) that stores a threshold value for assessing a decrease in the pressure of the water supplied from the pump (40) to the nozzle (26), and a determination unit (51) that, on the basis of the pressure detected by the pressure sensor (42) and the threshold value stored by the storage unit (52), determines whether the pressure detected by the pressure sensor (42) has decreased, thereby determining whether the nozzle (26) has damage.

Abstract: A rotating magnet heater for metal products, such as aluminum strip, can include permanent magnet rotors arranged above and below a moving metal strip to induce moving or time varying magnetic fields through the metal strip. The changing magnetic fields can create currents (e.g., eddy currents) within the metal strip, thus heating the metal strip. A magnetic rotor set can include a pair of matched magnetic rotors on opposite sides of a metal strip that rotate at the same speed. Each magnetic rotor of a set can be positioned equidistance from the metal strip to avoid pulling the metal strip away from the passline. A downstream magnetic rotor set can be used in close proximity to an upstream magnetic rotor set to offset tension induced by the upstream magnetic rotor set.

Abstract: A irradiation welding apparatus including an irradiation welding generator having at least one irradiation welding head configured to apply an irradiation treatment to end contact surfaces of a first profile and a second profile to join the first profile and the second profile, where the at least one irradiation welding head forms a planar cross-sectional shape in an x-y directional plane relative to the irradiation welding generator.

Abstract: A wireless power transmission apparatus for induction heating includes: a working coil configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to receive, in the wireless power transmission mode, a load voltage from a target object, compensate for the load voltage, and determine, in the wireless power transmission mode, whether a foreign object is present in the working coil based on the compensated load voltage.

Abstract: A peeling process and system comprising a primary peeling device; a sorting device arranged to sort product output from the primary peeling device into peeled product and partially peeled product; a secondary peeling device arranged to receive the partially peeled product output from the sorting device; and a peel control system to monitor the peel quality of product detected in at least one position after the primary peeling device and control the peeling system in response to same.

Abstract: Example inset frames configured to interchangeably support cooking accessories of various shapes and sizes within a cookbox of a grill are described. An example inset frame is configured to be positioned within a cookbox of a grill. The inset frame comprises a support lattice configured to interchangeably support a rectangular cooking accessory and a circular cooking accessory within the cookbox of the grill.

Abstract: An electric kettle has a kettle body and a power supply unit that is configured to supply power to the kettle body. The power supply unit has a plate part, a power supply base and a mounting unit. The plate part has a first surface and a second surface. The power supply base is arranged on a side of the first surface of the plate part and configured such that the kettle body is placed on top thereof. The power supply base has a power supply connection part that is electrically removably connected to the power receiving connection part. The mounting unit is arranged on a side of the second surface of the plate part and configured such that a battery pack is removably coupled thereto as the external power source for supplying power to the heating part via the power supply connection part and the power receiving connection part.

Abstract: A vehicle window glass with a metal terminal includes a glass plate, a conductor disposed on at least one of principal surfaces of the glass plate, and a metal terminal electrically connected to the conductor via solders. The metal terminal includes a connection portion; a first leg portion connected to the connection portion; a first base portion connected to the first leg portion; a second leg portion connected to the connection portion; a second base portion connected to the second leg portion; and a lead wire connection portion connected to the connection portion and including a rising portion and a bent portion connected to the rising portion, and a fixing portion connected to the bent portion and configured to be connected to a lead wire.

Abstract: Garments or footwear with active temperature control include one or more heating or cooling elements, one or more batteries, and one or more power receivers. Circuitry of the garment of footwear is configured to control the delivery of power to the one or more heating or cooling elements to heat or cool one or more portions of the garment associated with the one or more heating or cooling elements.

Abstract: A semiconductor process system includes a process chamber with a lid. The system includes a heater positioned on the lid and a controller configured to control the heater. The controller operates the heater to provide a selected temperature distribution of the lid.

Abstract: An electric blanket is provided, which includes a PTC electric heating wire, a switch module, a control module, and a protection module. The switch module is connected to the PTC electric heating wire and correspondingly causes the PTC electric heating wire to be powered on or off when it is conducted on or off; the control module is used to control conduction or disconnection of the switch module and is configured to obtain voltage signal at two ends of the PTC electric heating wire through the switch module, convert the voltage signal to obtain a resistance value of the PTC electric heating wire so as to obtain a current temperature value of the PTC electric heating wire, control the current temperature value of the PTC electric heating wire within a preset range, and detect whether the PTC electric heating wire is burned through via the protection module.

Abstract: Disclosed are a flux-cored welding strip and a welding flux used in combination for submerged arc welding of a duplex stainless steel, and preparation methods and use thereof. The flux-cored welding strip is composed of a stainless steel shell and a flux core powder, the flux core powder consisting of the following components: in percentages by mass, ferrochrome nitride: 0.70% to 1.0%, a chromium powder: 26% to 27%, a nickel powder: 4.5% to 5.5%, a molybdenum powder: 3.7% to 4.2%, a manganese powder: 2.55% to 2.65%, a copper powder: 1.45% to 1.55%, a ferrosilicon powder: 1.1% to 1.2%, a tungsten powder: 1.0% to 1.15%, a niobium powder: 0.25% to 0.35%, an aluminum powder: 0.35% to 0.55%, a rhenium powder: 0.35% to 0.40%, a lanthanum powder: 0.1% to 0.15%, and a balance being an iron powder.

Abstract: A welding system has a wire feeder having an adjustable lift point. The wire feeder includes a wire supply source configured to supply welding wire, a wire drive assembly configured to feed wire to a welding gun from the spool, and a support base. The wire supply source and the wire drive assembly are supported by the base. A lift member is connected to the support base and is selectively movable in at least one direction with respect to the support base to enable adjustment of the lift point of the wire feeder.

Abstract: A welding-type system for gas tungsten arc welding including control circuitry to control the initiation of a welding arc and the preflow and postflow of inert shielding gas based on sensed voltages.

Abstract: A welding electrode for use in resistance spot welding an assembly of metal workpieces with curved surfaces and closed or open sections is disclosed. The welding electrode includes a body, a weld face at one end of the body, and contoured curvature forming the weld face. The contoured curvature is configured to seat around the curved surfaces of the metal workpieces when the weld face is pressed against the workpieces during a resistance spot weld event. When brought into contact with the curved surface of the workpiece, the electrode has an optimal contact area, which improves the spot weld process by improving the pressure and current distributions.

Abstract: The control unit executes: a first execution step of executing a processing program to set a target value to a value defined by a processing program and performing feedback control on a driving current of a laser oscillator; a detection step of detecting an output fluctuation during execution of the first execution step; a specification step of specifying a physical quantity for which a measured value within a predetermined monitoring time before an occurrence timing of the output fluctuation does not satisfy a predetermined condition as an abnormal physical quantity from a plurality of physical quantities measured during execution of the first execution step; and a program update step of detecting appearance of a predetermined feature in an abnormal physical quantity as a fluctuation factor during execution of a post-update processing program, and updating the processing program to correct the driving current to reduce a difference between the laser output power and the target value compared with when the ou

Abstract: The present disclosure provides a suspended-type spot welding device convenient for welding and assembling of various vehicle models, falling within the technical field of welding. A suspension frame, a rotation piece, a spot welding machine body, a first electrode holder and a second electrode holder are included. According to the present disclosure, by approaching a welding seam with a camera, a position of the welding seam is displayed by a display. Under the action of a balancing weight, a position of the display is always kept above, which is convenient for workers to know the position of the welding seam through the display at any time and avoids the display from moving with a spot welding machine body, thus facilitating the workers to weld the welding seam.