75 results about "Induction welding" patented technology

The utility model discloses air conditioner condenser welding equipment, which relates to the technical field of condenser processing, and comprises a welding table, a high-frequency induction welding head, a translation assembly, a lifting assembly, a rotating assembly and a conveying assembly, the high-frequency induction welding head is arranged at the side end of the conveying belt on the welding table. The rotating assembly comprises a rotating motor arranged at the rear end of the high-frequency induction welding head. The translation assembly is arranged at the rear end of the rotating motor; the high-frequency induction welding head can transversely move to weld a U-shaped copper pipe on the condenser, the high-frequency induction welding head can ascend and descend through the lifting air cylinder, the high-frequency induction welding head can be suitable for welding copper pipes of different sizes on the condensers, the high-frequency induction welding head can also rotate, and the welding efficiency is improved. And the high-frequency induction welding head can be used for welding U-shaped copper pipes at various mounting angles, so that the welding is safer and more efficient.

The invention relates to the technical field of welding of semi-steel cables, in particular to an induction welding tool for a semi-steel cable and a welding method of the induction welding tool, and the welding tool comprises a coaxial positioning mechanism, an induction welding mechanism, a data acquisition assembly, an end face inclination angle judgment module, a coaxiality detection module, an eccentric torque correction module and a welding quality detection module; the method comprises the following steps: determining whether the fitting end surface has angular inclination or not based on a circumferential pressure balance index; under the condition that angular inclination exists, whether the coaxiality is qualified or not is determined based on the horizontal distance between the clamping groove and the vertical center line of the counter bore; whether the gravity eccentric torque of the semi-steel workpiece is qualified or not is determined based on the bending deflection amount of the semi-steel workpiece, and the righting distance of the righting block is adjusted based on the unqualified condition; and the tail pipe and the semi-steel workpiece are welded, and whether the welding quality is qualified or not is determined based on the circumferential spreading uniformity of the metallurgical bonding layer so as to optimize the preset equilibrium index. The welding quality of the tail pipe and the semi-steel workpiece is improved.

The invention relates to the technical field of metal pipe fitting machining, in particular to a 3D free bending forming method and device for an ultrahigh-strength steel special-shaped section automobile safety part. A metal plate is subjected to multi-pass rolling to form a continuous pipe blank with a special-shaped section; performing high-frequency induction welding on the joint end face of the continuous pipe blank to form a closed section; carrying out three-dimensional space straightness correction on the welded pipe blank by adopting a multi-directional pose adjustable straightening mechanism; the straightened continuous pipe blank is cut off in a cold state according to the set length; the pipe section is fed into a multi-axis free bending system, and die-free continuous bending is achieved by cooperatively controlling spatial translation and rotation of a bending die; the device integrates a rolling module, a welding module, a straightening module, a shearing module and a multi-axis bending module, can accurately form a special-shaped section component which is bent in a three-dimensional space in a complex mode, meets the strict requirements of automobile safety parts for forming precision and performance stability, and is suitable for mass production of products such as A-column reinforcing parts and threshold beams.

A seam guide assembly configured to maintain the longitudinal edges of a metal strip in position before welding in a welding section of a welded tube roll forming apparatus, the seam guide assembly having a front seam guide tip component, a through channel being provided in the holder, the channel having an inlet opening located on said first side of the holder, adjacent the front seam guide tip component, and an outlet opening located on a second side of the holder, the outlet opening being configured to connect to a vacuum source; a welded tube roll forming apparatus having a vacuum extraction section configured to extract solid particles produced inside the tube during the high frequency induction welding of the tube edges, and being located in the apparatus at a position where the where the edges of the roll formed tube have not yet been welded together; and related method.

The invention discloses a thermoplastic composite material rotor wing and a preparation method thereof, and relates to the field of low-altitude aircraft rotor wings, the thermoplastic composite material rotor wing comprises an upper skin and a lower skin, the upper skin and the lower skin are curved surface structural members prepared from a continuous fiber reinforced thermoplastic composite material through a hot stamping process, and an implantation layer is fixed to a foam core layer to form a composite interlayer; and finally, integral connection is completed by utilizing induction welding, resin at adjacent interfaces is locally fused by utilizing the induction heat generation characteristic of the implant layer, and the fused resin is mutually infiltrated and fully fused at the interfaces under the action of continuous pressure, so that the integral connection is completed. And compact and firm welding connection is formed after cooling, so that the production period is remarkably shortened, the energy consumption is reduced, the risks of aging and damp-heat degradation of the adhesive layer are completely eradicated from the manufacturing source, and therefore, it is guaranteed that the finally manufactured rotor wing product has excellent structural integrity, connection durability and long-term use reliability.

This invention discloses a multi-workpiece induction welding device, comprising: an induction welding device, a conveying platform, and a positioning fixture. A second clamping block is disposed between a second slot seat and a first clamping block. A left fixing rod and a right fixing rod are disposed on the side of the positioning base near the base plate. A limiting block with a through groove is installed on the top of the positioning base and is symmetrically arranged about the processed pipe B. A clamping rod with one end located inside the through groove is elastically connected to the left and right fixing rods through an elastic element. The other end of this clamping rod is located on both sides of the annular groove of the processed workpiece A, thereby clamping its second flange to the second clamping block. A fixing plate with a cover plate rotatably connected to its upper end is installed on one side of the base. The side of the cover plate away from the fixing plate can be fastened to the base. This invention's multi-workpiece induction welding device, while achieving preliminary positioning of the processed workpiece, prevents the welding process from being exposed to the outside air, effectively reducing the possibility of welding defects caused by oxidation at the welding point, and improving welding quality.

This invention provides a pressure welding equipment and method for the combined flash welding of the end face and the induction welding of the inner wall of thick-walled cylindrical parts. The equipment includes a frame, a rotating device, a rotating electrode device, an upsetting device, an argon protection device, a cleaning device, and an inner wall induction heating device. The rotating electrode device and the inner wall induction heating device constitute a dual heat source system that can operate independently or in tandem. The outer wall electrode uses contact discharge to achieve flash heating, while the inner wall induction coil uses non-contact heating to address the temperature difference between the inside and outside of the thick-walled part. The upsetting device applies axial upsetting pressure to form the weld. After upsetting, the inner induction coil continuously induction heats the weld to achieve in-situ high-temperature normalizing, eliminating uneven microstructure. The vertical roller has both axial feeding and positioning functions and upsetting reverse locking functions. The inner wall device uses a web-type support mechanism to deploy the traveling wheels to fit the inner wall, achieving automated welding and cleaning of the inner wall. This invention achieves dual-process synergy, integrated post-weld normalizing, and high-quality welding of the end face of large, thick-walled cylindrical parts.

To provide a compression load distributor for maintaining a weld line temperature during induction welding.SOLUTION: A compression load distributor (400) includes a support layer (404) and a heat spreading layer (401). The support layer (404) includes a flexible carrier (405) configured to distribute a load from a compression load applying device. The heat spreading layer (401) is coupled to and carried on the support layer, and comprises a heat sink (402) configured to transfer heat throughout the compression load distributor (400). The heat sink (402) is thermally conductive and electrically non-conductive.SELECTED DRAWING: Figure 4B

The present application relates to waterproof construction technology field, specifically to a kind of waterproof roll and its construction method.The waterproof roll includes roll body, and roll body is equipped with first connecting portion and / or second connecting portion;First connecting portion is connected with the second connecting portion of adjacent waterproof roll, and second connecting portion is connected with the first connecting portion of adjacent waterproof roll;First connecting portion includes first base material, at least two insertion slots in first base material and recess between adjacent two insertion slots, and second connecting portion includes second base material, at least two insertion parts in second base material and convex part between adjacent two insertion parts, the depth direction of insertion slot and recess is parallel to the thickness direction of roll body, insertion slot and insertion part are connected with stopper, recess and convex part are connected with stopper;Recess bottom and the top surface between convex part are equipped with adhesive layer, and adhesive layer is the structure layer that metal dense net and adhesive are made into by electromagnetic induction welding.

The invention relates to the technical field of PCB welding, in particular to a PCB pin ultrahigh frequency induction welding system. A PCB pin ultrahigh frequency induction welding system comprises a welding device, a station conversion device and a control device. The welding equipment comprises a high-frequency current generating device and a welding flux feeding device. The high-frequency current generating device comprises a high-frequency current generator and an induction coil; the welding flux feeding device comprises a tin outlet head; the number of the welding devices is at least two. The station conversion equipment comprises a bearing table, a plurality of containing positions are arranged on the bearing table, a PCB to be welded is fixed to each containing position, and the containing positions are converted among stations through movement of the bearing table. The ultrahigh frequency induction welding system for the PCB pin has the advantages that the welding part of the PCB is accurately positioned, the welding quality and the welding consistency are ensured, the ultrahigh frequency induction welding system is suitable for batch welding, and the welding efficiency is improved.

The utility model belongs to the technical field of pipeline connection, and particularly relates to a polyether-ether-ketone pipeline induction welding structure which comprises a connector and a connector welding end, and a welding cavity is formed in the welding end of the connector. A metal ring is embedded in the inner wall of the welding cavity, a plurality of round hole sets are distributed in the side wall of the metal ring in the axial direction, each round hole set comprises a plurality of round holes distributed in the annular direction, and the round holes of the adjacent round hole sets are distributed in a staggered mode in the axial direction. The joint embedded with the metal ring is welded with the pipe, the PEEK resin can fully permeate into the net-shaped metal ring, the pipe and the joint are effectively anchored, and high-strength connection of the joint and the pipe is achieved.

The invention relates to a production method of a tinned copper-clad aluminum wire, and relates to the technical field of metal material processing, and the production method comprises the following steps: S1, preparing a rare earth aluminum alloy rod; s2, surface treatment; s3, heating treatment; s4, copper strip coating and welding; s5, drawing and forming; s6, electrodeposition tin plating pretreatment; s7, electrodeposition tin plating; and S8, post-processing. According to the production method of the tinned copper-clad aluminum wire, the rare earth aluminum alloy is adopted as the aluminum core material, so that the mechanical strength and toughness of the aluminum rod are effectively improved, and the bonding performance between copper and aluminum is improved; secondly, a nano coating treatment technology is introduced, the activity of the surfaces of the aluminum rod and the copper strip is enhanced, a good foundation is provided for follow-up welding and combination, in addition, the surface of the aluminum rod is subjected to micro deformation through pulse heating treatment, the coating compactness of the copper strip is further improved, the stability and consistency of the welding process are ensured through a high-frequency induction welding technology, and the welding quality is improved. And the problems of oxidation, air holes, stripping and the like easily occurring in traditional welding are avoided.

The invention relates to the technical field of automobile part forming, in particular to a precise cold forming method and device for an ultrahigh-strength steel special-shaped section automobile safety part. Continuous rolling, high-frequency induction welding, multi-roller correction, precise punching and multi-direction bending forming are organically combined; integrated and continuous precision production from plates to complex space pipe fittings is achieved, the defects that in a traditional segmented tailor-welding process, the working procedures are tedious, weld joints exist, the hydraulic forming technology efficiency is low, and springback is difficult to control are effectively overcome, and therefore it is guaranteed that products have excellent structural integrity and dimensional precision, and the production efficiency is improved. The production efficiency and the material utilization rate are remarkably improved, and the production cost is reduced.

The utility model discloses a double-layer coil for high-frequency induction welding, which comprises an upper-layer coil, a lower-layer coil and a lower-layer coil, the upper-layer coil is of an annular structure, an area enclosed by the annular structure is an induction heating area, and the induction heating area is used for placing a product to be welded; the lower-layer coil is arranged below the upper-layer coil, the first end of the lower-layer coil is connected with the upper-layer coil and then is connected with a first pole rod, the second end of the lower-layer coil is connected with a second pole rod, and the first pole rod and the second pole rod are used for being connected with a power source. Compared with the prior art, the utility model can solve the problems of corrosion, hole loosening, non-melting or over-melting of products caused by non-uniform heating of workpieces during brazing.

1. Name of the product in this design: Medium frequency induction welding coil. 2. Purpose of this design: for use in medium-frequency induction welding heating. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The induction welding tool capable of adjusting the welding position of the workpiece comprises a coil, a base and two parallel guide rail seats, the base is installed on the two guide rail seats in a sliding mode, the base is driven through a first driving piece, an upper seat is arranged above the base, and a lower seat is arranged above the upper seat. The base is provided with a second driving part for driving the upper seat to lift, and a guide assembly is arranged between the base and the upper seat; a base is mounted at the top end of the upper seat, and a sliding seat and a fixing plate are mounted at the two ends of the top of the base correspondingly. A sliding block is slidably mounted on the sliding seat, the sliding block is driven by a third driving part, and a clamping plate is fixed to the side, away from the third driving part, of the sliding block; a push plate matched with the clamping plate is installed on the upper base in a sliding mode, and a ball screw driving the push plate to move in a reciprocating mode is installed on the fixing plate. And the coil is positioned above the clamping plate and the push plate. According to the device, a cushion block and a graphite limiting block do not need to be manually added, and the machining efficiency is higher.

The utility model provides an automatic copper foil induction welding device which comprises a machine frame, a conveying mechanism, an installation support, a first pressing mechanism, a second pressing mechanism and an induction heating assembly, and the conveying mechanism comprises a first conveying belt, a second conveying belt, a conveying roller and a rotation driving assembly. The mounting support is fixed above the rack and corresponds to the position between the first conveying belt and the conveying roller, the first pressing mechanism is fixed on the left side of the mounting support and corresponds to the position above the first conveying belt, and the second pressing mechanism is fixed on the right side of the mounting support and corresponds to the position above the conveying roller. The first induction coil and the second induction coil correspond to the left side and the right side of the conveying roller respectively and are both electrically connected with the heating control box. The welding device has the advantages that long-strip-shaped metal workpieces can be stably conveyed, when the workpieces are subjected to induction heating, the temperature of scaling powder can be increased more evenly, the scaling powder can be fully melted, and therefore the welding efficiency and quality are improved.

The utility model relates to the technical field of metal welding, in particular to a high-frequency metal induction welding machine for servo control of welding depth. According to the technical scheme, the device comprises a machine table, a high-frequency heating power source and a movable welding base, a fixed welding base is arranged on one side of the upper surface of the machine table, the movable welding base is arranged on the other side of the upper surface of the machine table in a sliding mode through a servo assembly, and the servo assembly is used for controlling the movable welding base to do linear motion on the machine table; the fixed welding seat and the movable welding seat are respectively provided with a claw disc, the high-frequency heating power supply is arranged on the side of the machine table through a translation assembly, the translation assembly is used for controlling the high-frequency heating power supply to do linear motion, and a heating coil is arranged at the working end of the high-frequency heating power supply. The position of the heating coil can be adjusted according to the size difference of workpieces, it is ensured that a heating area corresponds to a welding contact face, feeding action is achieved under the control of the servo motor, and the feeding distance and pressure can be controlled according to actual welding requirements.

An inductor unit for controlled induction welding of at least one fiber reinforced thermoplastic composite workpiece, comprising at least one coil unit, at least one electrically conductive element and at least one soft magnetic element. The electrically conductive element has a generative side and an active side. The active side is configured to face the at least one workpiece to be welded and has a smaller cross-sectional surface area than the generative side. The at least one coil unit is configured to induce currents in the electrically conductive element, and the at least one soft magnetic element is arranged at least partly on the at least one electrically conductive element such that the induced current is directed from the generative side to the active side of the electrically conductive element and concentrated therein.

To provide methods and systems for calibrating electrical current for an induction welding operation, which achieve reduced production time, reduced production costs, and improved operation of a computer.SOLUTION: A method is provided for controlling an induction welding operation. The method includes sweeping electrical current through an induction welding coil (116) at an initial position of the induction welding coil (116) along a weld path (108) of a material (118, 120); monitoring a response of the material to the swept electrical current using at least one electromagnetic field (EMF) sensor (122); calibrating an electrical current value for the induction welding operation using the monitored response; and performing the induction welding operation along the weld path (108) using the calibrated electrical current value.SELECTED DRAWING: Figure 1

The invention discloses a preparation method of a 2200MPa-grade ultra-high-strength hot-formed steel pipe blank, which comprises the following steps: longitudinally cutting a steel coil into strips, and sequentially carrying out curling forming, high-frequency induction welding, slag scraping, induction heat treatment and cooling on the strips; the induction current frequency of the high-frequency induction welding is 300 kHz to 450 kHz; in the induction heat treatment, an induction heater is adopted to heat a welding seam area, and the temperature is controlled to be 500-650 DEG C; the cooling sequentially comprises an air cooling stage and a water cooling stage. The invention further discloses the 2200 MPa grade ultra-high strength hot forming steel pipe blank. According to the method, the brittle cracking problem of the weld zone is fundamentally solved, and the pipe blank forming yield is remarkably increased.

The embodiment of the application provides a three-dimensional induction welding coil optimization design method and related equipment, and belongs to the field of advanced manufacturing and electromagnetic heating technology. The method comprises the following steps: discretizing a three-dimensional design space, defining geometric and topological constraints, and constructing a scalarization objective function; according to the obstacle layout, the homotopy class is divided, the representative curve is generated as an initial topological template; a differential homeomorphism mapping parameterized by a radial basis function network is constructed to drive the representative curve to deform geometrically; a serialization decision strategy is adopted, a fast proxy model based on the Biot-Savart law and a local gradient adaptive step are combined to iteratively optimize the deformation parameters at low cost; the candidate path is verified by high-fidelity finite element simulation, and the design meeting the engineering index and having the maximum and minimum performance margin is selected as the final result. The application significantly reduces the calculation cost while strictly guaranteeing the physical feasibility of the coil, and improves the efficiency and yield of complex structure design.

An induction welder for inductively welding two or more components has an induction coil for applying a magnetic field to a weld site of the two or more components to inductively weld the two or more components together. The induction coil includes a proximal end and a distal end. The distal end is positioned proximate the weld site of the two or more components to inductively weld the two or more components at the weld site. A press is disposed distally of the induction coil such that the press is disposed between the induction coil and the two or more components when the two or more components are being inductively welded together. The press is used to apply pressure to the two or more components and press the two or more components together at the weld site simultaneously with the application of the magnetic field at the weld site.

The invention relates to a 5052 aluminum alloy connecting pipe and 304 stainless steel melt-brazed lap joint manufacturing method, and belongs to the technical field of melt-brazed lap joints, and the 5052 aluminum alloy connecting pipe and 304 stainless steel melt-brazed lap joint manufacturing method comprises the steps that a 5052 aluminum alloy connecting pipe is turned into a needed joint form, and a 304 stainless steel connecting pipe is cut; the two prepared connecting pipes are assembled, the assembling gap between the 5052 aluminum alloy connecting pipe and the 304 stainless steel connecting pipe is measured through a vernier caliper and a feeler gauge, and the assembling gap should be 1 + / -0.5 mm; the FA-S-FS1 brazing flux is pre-smeared on the inner wall of the 5052 aluminum alloy connecting position and the outer wall of the stainless steel connecting position, the two connecting pipes are assembled in a lap joint mode after smearing, then the ring-mounted ER4047 brazing wire is pre-arranged at the lap joint seam, the whole connecting pipe is moved into a vacuum cover, vacuumizing is conducted after sealing is conducted, a high-frequency induction welding machine is started, the temperature of the whole connector is controlled to be lower than 650 DEG C, and welding is conducted. And heating can be stopped when the preset welding wire is completely melted. By means of the method, the 5052 aluminum alloy connecting pipe and 304 stainless steel melt-brazed lap joint can be manufactured at low cost.

The utility model discloses a kind of cleaning structure of copper aluminium friction stir welding head, including workbench, the side of workbench is a plurality of friction stir welding units, the other side is cleaning platform, stirring head switches between both, the cleaning platform includes support seat, transversely provided with induction welding ring on the support seat, steel wire brush array is arranged below the induction welding ring;By the above mode, the utility model uses the combined mode of induction heating, mechanical cleaning and visual inspection, not only can effectively control the temperature of stirring head, greatly reduce cleaning time, without material loss, and easy to realize automated production, effectively improve production efficiency.

This invention relates to the field of welding technology, specifically to a welding fixture for mold cooling pipes, comprising a worktable, a first hopper, a conveying assembly, a high-frequency induction welding machine, a welding platform, and a second hopper. The second hopper, welding platform, high-frequency induction welding machine, conveying assembly, and first hopper are arranged in an L-shape on top of the worktable. The first and second hoppers automatically discharge copper pipes and brass connectors, respectively. After the brass connectors are discharged, the welding platform rotates the brass connectors so that their circumference aligns with the welding end of the copper pipe. Then, the conveying assembly and a moving assembly drive them horizontally to approach each other towards the high-frequency induction welding machine for welding. After welding, the moving assembly can directly pull the weldment along the conveying direction of the copper pipe for rapid unloading, thereby enabling rapid batch manufacturing of cooling pipe components and improving the efficiency of batch manufacturing.

A one-step induction welding assembly configuration for a battery enclosure includes a tray constructed of a constructed of thermoplastic composite material. The tray is part of the battery enclosure. The one-step induction welding assembly configuration also includes a cooling component constructed of one of the following: thermoplastic composite material and metal, where the cooling component is joined to the tray at a joining interface, and the cooling component is part of the battery enclosure. The one-step induction welding assembly configuration also includes a plurality of induction coils that are energized to create an electromagnetic field that generates heat and joins the tray and the cooling component together at the joining interface, a layer of electrically insulating material disposed directly underneath the plurality of induction coils, and a die that exerts a clamping force against the tray of the battery enclosure.

An assembly is provided for induction welding. This assembly utilizes a plurality of heat shields (e.g., mica heat shields) that are aligned / disposed in end-to-end relation, with each such heat shield having a recess. An induction welding coil may be disposed within a heat shield recess during induction welding operations and is movable along a welding path while proceeding along the recesses of the various heat shields. This welding path may be axially extending or may be curved. The induction welding assembly may be used to induction weld a stiffener to a curved skin or shell, for instance where a base of the recess for each heat shield is curved such that the induction welding coil may be moved along a curved welding path and while maintaining a constant spacing between the induction welding coil and the recess base of the various heat shields.

The present application relates to the technical field of metal composite material processing, and discloses a copper-clad aluminum composite wire and a preparation method and application thereof, the preparation method of the copper-clad aluminum composite wire comprises the following steps: using high-frequency induction welding to clad a copper strip concentrically on the outer layer of an aluminum core wire, so that the aluminum core wire is accommodated in a space enclosed by the copper strip, to obtain a composite material; and sequentially performing three continuous warm drawings of rough drawing, medium drawing and fine drawing on the composite material, to obtain the copper-clad aluminum composite wire. The present application realizes local melting in seconds by using high-frequency induction welding, and the interface bonding uniformity is good, and the interface bonding strength is greater than or equal to 80 MPa, so that the tensile strength, electrical conductivity and other key performance indicators of the copper-clad aluminum composite wire are improved; and then, three continuous warm drawings of rough drawing, medium drawing and fine drawing are sequentially performed on the composite material, to obtain a more fine and uniform structure, to realize better mechanical properties and high conductivity, and to improve the qualified rate of the copper-clad aluminum composite wire.

This invention discloses a method for producing high-flexibility, high-conductivity copper-clad steel wire for automotive signal harnesses. The steel core wire rod undergoes mechanical stripping, straightening, and bright annealing pretreatment under a nitrogen-hydrogen protective atmosphere; the copper strip undergoes degreasing, pickling, and passivation pretreatment. The steel core is activated in a vacuum chamber by argon plasma at a pressure of 10-18 Pa, a power of 300-500 W, a time of 12-30 s, and a p×t ratio of 5500-9000, while a 0.1-0.5 μm copper-based transition layer is deposited in the same chamber. Subsequently, the copper strip is continuously coated and formed by high-frequency induction welding at 400-600 kHz. It then undergoes multiple drawing passes and segmented heat treatments of intermediate / finished annealing, followed by electrolytic cleaning and passivation before winding. The resulting wire exhibits excellent conductivity, flexibility, and interfacial bonding properties, with a conductivity ≥40% IACS. Its repeated bending and corrosion resistance meet automotive service requirements.