8results about "Rectilinear seam welding" patented technology

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.

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)

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.

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.

To provide an electrode tab welding device and an electrode tab welding method for preventing disconnection of an electrode tab.SOLUTION: The above and other aspects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: The electrode tab welding apparatus may include: a pair of tab guides for gathering the plurality of electrode tabs; a pair of alignment rollers for pressing the plurality of electrode tabs gathered by the pair of tab guides and rotating in a direction in which the outermost electrode tabs are pushed toward the electrode assembly; and a welding unit for welding the plurality of electrode tabs aligned by the pair of alignment rollers.SELECTED DRAWING: Figure 4

To provide a welding machine capable of automatically correcting at least partially parameters of the welding machine, reliably and directly during the welding.SOLUTION: A welding machine (1) of at least two parts to be welded (2), comprises at least one mobile assembly (10). The mobile assembly comprises: at least one pair of drive wheels (12) intended to move the mobile assembly relative to the parts to be welded; and at least one welding head (14) comprising at least two welding wheels (16) and able to generate a weld portion intended to fixedly join the parts to be welded by rolling the welding wheels against the parts to be welded. The welding machine further comprises a control unit (30) of the welding head. The control unit is able to control parameters of the welding machine.SELECTED DRAWING: Figure 2