35results about "Rectilinear seam welding" patented technology

An electrode tab welding device according to an embodiment of the present invention can weld a plurality of electrode tabs of an electrode assembly. The electrode tab welding device may include a pair of tab guides for collecting the plurality of electrode tabs, a pair of alignment rollers for applying pressure to the plurality of electrode tabs collected by the pair of tab guides and rotating in a direction in which the outermost electrode tab is pressed toward the electrode assembly, and a welding section for welding the plurality of electrode tabs aligned by the pair of alignment rollers.

The present invention relates to a method for resistance welding of a pipe bend fitting, in which two pipe bend fitting halves are welded together to form one pipe bend fitting using a resistance welding machine, wherein both an internal weld and an external weld occur in three welding phases. The invention also relates to a device, wherein at least two synchronously moving robots position the two pipe bend fitting halves. The resistance welding machine includes a welding section for resistance welding of the fittings, while a control section maintains communication with the synchronously moving robots. The welding current, welding time, and cooling time can be adjusted per welding phase. This leads to increased productivity through simultaneous resistance welding of fittings, and improved weld reliability and durability through triple welding phases.

An electrode tab welding device according to an embodiment of the present invention can weld a plurality of electrode tabs of an electrode assembly. The electrode tab welding device may include a pair of tab guides for collecting the plurality of electrode tabs, a pair of alignment rollers for applying pressure to the plurality of electrode tabs collected by the pair of tab guides and rotating in a direction in which the outermost electrode tab is pressed toward the electrode assembly, and a welding section for welding the plurality of electrode tabs aligned by the pair of alignment rollers.

The invention "Method and metals to produce high resistance electrode anode in high ampere DC current", is the electro welding of Platinum / Iridium alloy on Titanium substrate, which is carried out by: a) predetermined composition and thickness of the Platinum / Iridium alloy, b) by preheating the Titanium substrate under specific conditions, c) with a specific temperature range of the local contact temperature of the Tungsten end, making the electro welding, d) with a specific range of the vertical pressure of the terminal on the metals which are to be electro welded, and e) with a specific range of the electro welding speed.

System and method for indirect resistance welding of a sealing plate to an anchor plate The present invention relates to a system (S1) for indirect resistance welding of a sealing plate (1) of a tank intended to contain liquefied gas, on an anchor plate (22) arranged partly under the sealing plate (1), comprising: - a pair of electrodes and a current generator capable of being connected to the electrodes (41, 42) - a support (5) capable of holding the electrodes relative to each other, - means for positioning the support (5) against the sealing plate (1), capable of positioning a first (41) of the electrodes above the sealing plate (1) and a second (42) of the electrodes above the free portion of the anchor plate (22), and - at least one actuator (9) capable of pressing the first electrode (41) against the sealing plate (1) and the second electrode (42) on the free portion of the anchor plate (22). (Figure 3)

The present invention relates to a method and apparatus for mash welding in steel making, wherein a step of brushing the overlapping areas of sheet metal surfaces (102, 108) before the mash seam welding process of the pair of steel sheets (100, 106) is provided in order to give the surfaces (102, 108) of the overlapping areas increased surface roughness. The apparatus as well is using such application of brushing and mash seam welding. This ultimately results in steel products with greater weld strength, especially for high-strength steels.

A manufacturing method of an optical module including a package and lid, the package having an opening to be sealed with the lid. The manufacturing method includes placing the lid on the package so that the lid covers the opening; putting a metal block on the lid, the metal block having a first surface touching a top surface of the lid; welding the lid to the package using a seam welding machine, the first surface of the metal block touching the top surface of the lid during the welding, the metal block being configured not to interfere the seam welding machine; and detaching the metal block from the lid.

The invention relates to a system (S1) for indirect resistance welding of a sealing plate (1) of a tank configured to contain liquefied gas to an anchoring plate (22) arranged partially below the sealing plate (1), comprising:-a pair of electrodes and a current generator adapted to be connected to said electrodes (41, 42); -supports (5) capable of holding the electrodes relative to each other; -positioning means for positioning the support (5) against the sealing plate (1), capable of positioning a first of the electrodes (41) above the sealing plate (1) and a second of the electrodes (42) above a free portion of the anchoring plate (22); and-at least one actuator (9) capable of pressing the first electrode (41) against the sealing plate (1) and the second electrode (42) against the free portion of the anchor plate (22).

This invention covers the joining of thin-section galvanized and stainless metal sheets used in the manufacturing industry by wire seam welding; The development made in the wire seam welding machine with high frequency transformer, which reduces the energy costs by increasing the frequency of the energy used and ensuring that the energy is consumed in a low manner, thanks to the high-frequency transformer in its structure, thus reducing the load on the machine and ensuring that the machine and its elements are used with a long life in accordance with its purpose its feature; analog sensor (6), which detects the thickness of the sheet to be welded between the upper roller (2) and the lower roller (3) by measuring the stroke of the piston (13), an electrically controlled pneumatic valve (9) that adjusts the pressure to be applied by the piston (13), Pressure sensor (11), which precisely determines the pressure to be applied according to the material type of the sheet to be welded, the limit sensor (7), which senses that the pusher and the lock (4) have reached the maximum retraction point and sends a signal to the control panel (5) to stop, a clutch (10) that takes the pusher and the lock (4) into the starting position, and when the welding process is started, it consists of a laser sensor (8) that detects the end point, which is the first point where the sheet metal will start welding.

An apparatus for roll forming thermoplastic composites comprises a plurality of thermoplastic composite material spools, a plurality of thermoplastic composite material rollers, a plurality of sheet metal spools, a plurality of welding rollers, an oven, a forming roller, a pair of pinch rollers. The thermoplastic composite material spools retain plies of thermoplastic composite material. The plies flow through the thermoplastic composite material rollers to form a layup. The sheet metal spools retain metal sheets. The metal sheets and the layup flow through the welding rollers to form a metal composite material laminate. The oven heats the metal composite material laminate. The forming roller imparts a curvature to the metal composite material laminate. The pinch rollers receive the metal composite material laminate from the forming roller, pull the metal composite material laminate, and output the metal composite material laminate in a heated and compressed state.

To provide a method for manufacturing a metallic strip (10).SOLUTION: The end (13) of a first metallic strip element (11) and the end (14) of a second metallic strip element (12) placed side by side in a longitudinal direction are arranged on a flat support. Each of the first and second metallic strip elements (11 and 12) includes two opposite main surfaces (11A and 12A) connected by two longitudinal side surfaces (11B and 12B). Each of the end (13) of the first metallic strip element (11) and the end (14) of the second metallic strip element (12) is terminated on a horizontal end surface. The longitudinal side surfaces of the first and second metallic strip elements are aligned so as to extend linearly. The first and second metallic strip elements are butted and welded, and a continuous weld bead is formed along the horizontal end surface over the entire width of the elements.SELECTED DRAWING: Figure 1

System and method for indirect resistance welding of a sealing plate to an anchor plate. The present invention relates to an indirect resistance welding system (S1) of a sealing plate (1) of a tank intended to contain liquefied gas, to an anchor plate (22) disposed partially under the sealing plate (1), comprising: - a pair of electrodes and a current generator adapted to be connected to the electrodes (41, 42); - a support (5) adapted to hold the electrodes relative to each other; - means for positioning the support (5) against the sealing plate (1), adapted to position a first electrode (41) above the sealing plate (1) and a second electrode (42) above the free portion of the anchor plate (22); and - at least one actuator (9) adapted to press the first electrode (41) against the sealing plate (1) and the second electrode (42) on the free portion of the anchoring plate (22). (Figure 3)

An electrode tab welding device according to an embodiment of the present invention may weld a plurality of electrode tabs of an electrode assembly. The electrode tab welding device may include: a pair of tab guides that gather the plurality of electrode tabs; a pair of aligning rollers that rotate in a direction, in which the outermost electrode tab is pushed toward the electrode assembly, while pressing the plurality of electrode tabs gathered by the pair of tab guides; and a welding part that welds the plurality of electrode tabs, which are aligned by the pair of aligning rollers, to each other.

The invention relates to the technical field of welding devices, and provides a welding machine device with an edge punching function, which comprises an equipment rack, a cleaning rack, a clearing assembly, a position adjusting rack, a welding assembly, an edge punching assembly and a position adjusting assembly, and is characterized in that a feeding rack is fixedly mounted at the input end of the equipment rack, and a discharging rack is fixedly mounted at the output end of the equipment rack; the cleaning machine frame is fixedly installed on the feeding machine frame, the clearing assembly is installed on the cleaning machine frame, the two position adjusting machine frames are vertically symmetrically and fixedly installed in the equipment machine frame, the welding assemblies are installed on the two position adjusting machine frames, the two welding assemblies are symmetrically arranged, the edge punching assembly is installed on the welding assemblies, and the position adjusting assemblies are installed on the equipment machine frame. By means of the technical scheme, the problems that in the welding process in the prior art, due to the fact that lap joint between the two sections of strip steel is not tidy, the welding contact area is not uniform, the welding strength is reduced, and welding of the two sections of strip steel is not firm are solved.

The invention relates to a device (1) for defining the circumference of a sheet-metal cylinder (2), which is produced from a sheet-metal section by rounding, for welding said sheet-metal cylinder to form a container body. It comprises a multiplicity of guide rollers (3) which are arranged in the manner of a ring and enclose a passage opening (4) for the sheet-metal cylinder (2). The guide rollers (3) are supported by a support structure (5), the geometry of which can be adjusted in such a way that the passage opening (4) enclosed by the guide rollers (3) can be changed by adjusting the geometry of the support structure (5). Regions (6a, 6b) of the support structure (5) which support guide rollers (3) are connected to the rest of the support structure via one or more solid joints (8), and the geometry of the support structure (5) is adjusted in that these regions (6a, 6b) are moved with respect to the rest of the support structure using the solid joints (8). Such devices are simple and cost-effective to produce and maintain, and they make it possible, with a relatively simple support structure, to keep the geometry of the passage openings delimited by the guide rollers very close to the ideal body geometry with each adjustment.

An apparatus for roll forming thermoplastic composites comprises a plurality of thermoplastic composite material spools, a plurality of thermoplastic composite material rollers, a plurality of sheet metal spools, a plurality of welding rollers, an oven, a forming roller, a pair of pinch rollers. The thermoplastic composite material spools retain plies of thermoplastic composite material. The plies flow through the thermoplastic composite material rollers to form a layup. The sheet metal spools retain metal sheets. The metal sheets and the layup flow through the welding rollers to form a metal composite material laminate. The oven heats the metal composite material laminate. The forming roller imparts a curvature to the metal composite material laminate. The pinch rollers receive the metal composite material laminate from the forming roller, pull the metal composite material laminate, and output the metal composite material laminate in a heated and compressed state.

To provide a welding machine in which the difference in tangential speed between the drive wheels and welding wheels due to the wear of the welding wheels does not affect the quality of the welding of the parts to be welded and which requires a longer replacement time for the welding wheels.SOLUTION: The invention relates to a welding machine (1) configured to move along at least two parts to be welded, the welding machine (1) comprises: at least one drive wheel (20) intended to move the welding machine (1) relative to the parts to be welded; at least one actuator (22) capable of rotating the drive wheel (20); and at least one welding wheel (26) capable of welding the parts to be welded by rolling against at least one of the parts to be welded, with the welding wheel (26) being free to rotate relative to the drive wheel (20).SELECTED DRAWING: Figure 4

This invention relates to an improved method for welding chromium coated steel for 3-piece canmaking and to an apparatus for performing said method.

The present invention relates to a method for resistance welding of a pipe bend fitting, in which two pipe bend fitting halves are welded together to form one pipe bend fitting using a resistance welding machine, wherein both an internal weld and an external weld occur in three welding phases. The invention also relates to a device, wherein at least two synchronously moving robots position the two pipe bend fitting halves. The resistance welding machine includes a welding section for resistance welding of the fittings, while a control section maintains communication with the synchronously moving robots. The welding current, welding time, and cooling time can be adjusted per welding phase. This leads to increased productivity through simultaneous resistance welding of fittings, and improved weld reliability and durability through triple welding phases.

The present invention discloses an electrode cylinder assembly and welding system for ferrosilicon production, which includes a track, an electrode cylinder assembly rack, and an alternating current circumferential seam welding machine. The electrode cylinder assembly rack is slidably arranged on the track, and the alternating current circumferential seam welding machine is arranged on one side of the track. The alternating current circumferential seam welding machine includes two pairs of welding wheels and a welding housing. The rotation directions of the two pairs of welding wheels are opposite, and the disc notch of the electrode cylinder assembly rack is correspondingly arranged with the upper and lower wheel gaps of the two pairs of welding wheels of the alternating current circumferential seam welding machine. Advantages: The electrode cylinder assembly rack is provided to facilitate the disassembly and assembly of the electrode cylinder. It travels along the track and then uses the alternating current circumferential seam welding machine to complete the welding, reducing the personnel input and lowering the labor intensity.

The invention relates to a method for cleaning the surface of a metal wire (2) or metal strip, in particular a metal wire (2) or metal strip used as an intermediate electrode of a roll seam welding machine, wherein the metal wire (2) or the metal strip is guided under tension in the longitudinal direction of the wire or strip along a plurality of stripping bodies (4) arranged spaced apart, one behind the other, in the longitudinal direction of the wire or strip, in such a way that the wire or strip sections (5a-5g) lying between two successive stripping bodies (4) together form an arc-shaped wire section. It has been shown that this enables intensive and reliable cleaning with constant cleaning quality.

The invention belongs to the technical field of welding devices, and particularly relates to a rolling type welding electrode for high-frequency resistance welding, which comprises a base, sleeves I are slidably connected to two sides of the upper end face of the base, telescopic rods I are slidably connected to inner cavities of the sleeves I, and extrusion rollers are rotatably arranged on one sides of the upper ends of the telescopic rods I; sliding blocks are connected to the two sides of the upper end face of the base in a sliding mode, second sleeves are connected to the upper end faces of the sliding blocks in a sliding mode, second telescopic rods are connected to inner cavities of the second sleeves in a sliding mode, a plurality of electrode rolling bodies are arranged at the upper ends of the second telescopic rods, and a feeding assembly used for sequentially placing the multiple welded pipes between the two extrusion rollers is further arranged on the base. By means of the feeding assembly, the multiple welded pipes can be sequentially placed at the welding positions to be welded, so that the process that a worker manually places the multiple welded pipes at the designated positions one by one to be welded is omitted, and convenience is achieved.

The invention relates to a method for cleaning a surface of a metal wire (2) or a metal strip, in particular a surface of a metal wire (2) or a metal strip used as an intermediate electrode of a roll gap welder, the metal wire (2) or the metal strip is guided under tension in the longitudinal direction of the wire or strip along a plurality of stripping bodies (4) which are arranged at a distance in sequence in the longitudinal direction of the wire or strip, so that the wire segments or strip segments (5a-5g) which are located in each case between two successive stripping bodies (4) together form an arc-shaped wire segment. It has been confirmed that dense and reliable cleaning with a constant cleaning quality can thereby be achieved.

The invention relates to a method for producing a metal strip (10), comprising the following steps: arranging an end portion (13) of a first metal strip element (11) and an end portion (14) of a second metal strip element (12) on a planar support (21) juxtaposed in a longitudinal direction, each of the first and second elements having a longitudinal side (11B, 11C, 11B, 11C, 11B, 11C, 11B, 11C, 11B, 11C, 11D, 11C, 11D, 11C, 11D, 11C, 11D, 11C, 11D, 11C, 11D); the first element and the second element each terminate by a transverse end face (11C, 12C), aligning the longitudinal side faces of the first element and the second element such that the longitudinal side faces of the first element and the second element extend in a line with each other, and wherein the longitudinal side faces of the first element and the second element extend in a line with each other, and wherein the longitudinal side faces of the first element and the second element each terminate by a transverse end face (11C, 12C). The first metal strip element and the second metal strip element are butt-welded so as to form a continuous weld seam extending along the transverse end faces (11C, 12C) over the entire width of the elements.

Provided is a welding monitoring apparatus that monitors a welding state of a V-convergence region in which a strip-shaped metal sheet is converged in a V-shape, when the metal sheet is cylindrically formed while being conveyed, and both side edges of the metal sheet are heated and melted in a manner of being butted each other while being converged in the V-shape, such that an electric resistance welded steel pipe is manufactured. This welding monitoring apparatus includes an image capturing unit that captures images of a region including the V-convergence region in time series; and an image processing unit that extracts a welding point based on the images captured in time series and detects the presence or absence and a position of irregular arcing at the welding point or on an upstream side of the welding point.

An electrode tab welding device according to an embodiment of the present invention may weld a plurality of electrode tabs of an electrode assembly. The electrode tab welding device may include: a pair of tab guides that gather the plurality of electrode tabs; a pair of aligning rollers that rotate in a direction, in which the outermost electrode tab is pushed toward the electrode assembly, while pressing the plurality of electrode tabs gathered by the pair of tab guides; and a welding part that welds the plurality of electrode tabs, which are aligned by the pair of aligning rollers, to each other.

The invention relates to a method for manufacturing a metal strip (10), comprising the steps of: - placing an end portion (13) of a first metal strip element (11) and an end portion (14) of a second metal strip element (12) on a flat support (21), juxtaposed in a longitudinal direction, each of the first and second elements having two opposing principal faces (11A, 12A) connected by two longitudinal lateral faces (11B, 12B), the end portion of the first element and the end portion of the second element each being terminated by a transverse end face (11C, 12C), - aligning the longitudinal lateral faces of the first and second elements so that they extend in line with each other, - welding the first and second metal strip elements end-to-end, forming a continuous weld bead extending along the transverse end faces (11C, 12C),across the entire width of the elements. Figure for the abbreviation: 1,

The invention relates to a method for cleaning the surface of a metal wire (2) or metal strip, in particular a metal wire (2) or metal strip used as an intermediate electrode of a roll seam welding machine, wherein the metal wire (2) or the metal strip is guided under tension in the longitudinal direction of the wire or strip along a plurality of stripping bodies (4) arranged spaced apart, one behind the other, in the longitudinal direction of the wire or strip, in such a way that the wire or strip sections (5a-5g) lying between two successive stripping bodies (4) together form an arc-shaped wire section. It has been shown that this enables intensive and reliable cleaning with constant cleaning quality.

The invention relates to a method for manufacturing a metal strip (10), comprising the steps of: - placing an end portion (13) of a first metal strip element (11) and an end portion (14) of a second metal strip element (12) on a flat support (21), juxtaposed in a longitudinal direction, each of the first and second elements having two opposing principal faces (11A, 12A) connected by two longitudinal lateral faces (11B, 12B), the end portion of the first element and the end portion of the second element each being terminated by a transverse end face (11C, 12C), - aligning the longitudinal lateral faces of the first and second elements so that they extend in line with each other, - welding the first and second metal strip elements end-to-end, forming a continuous weld bead extending along the transverse end faces (11C, 12C),across the entire width of the elements. Figure for the abbreviation: 1,