32results about How to "Improve welding reliability" patented technology

This invention discloses an automatic welding machine, comprising a first welding station, a second welding station, and a transfer mechanism. The first welding station includes a first support and positioning component and a resistance welding machine. The first support and positioning component is provided with a first electrode, and the first electrode is provided with a movable connection structure for movably connecting a pre-welding mounting plate. The resistance welding machine includes a second electrode, which cooperates with the first electrode to weld the mounting plate to the inner wall of the first end of the side plate. The second welding station includes a second support and positioning component and a laser welding machine, used to weld the top end of the second outward flange to the first end of the first outward flange. This automatic welding machine can realize the automatic welding of beam frames, which is beneficial to improving welding quality and welding efficiency, and reducing labor intensity.

This utility model proposes a cylindrical secondary battery, including a positive electrode current collector and a negative electrode current collector. The positive electrode current collector includes a disk body and a tail body. The disk body is provided with multiple positive electrode welding areas. The area of ​​the disk body is S1, and the sum of the areas of the multiple positive electrode welding areas is S2. 100 12%S1≤S 100 ≤24%S1; The negative electrode current collector is provided with multiple negative electrode welding areas, and each negative electrode welding area is provided with multiple negative electrode solder marks. The area of ​​the negative electrode current collector is S2, and the sum of the areas of the multiple negative electrode welding areas is S. 200 Among them, 10%S²≤S 200 ≤20%S2. This utility model, by setting a positive electrode welding area and a positive electrode solder mark on the positive electrode current collector, and setting a negative electrode welding area and a negative electrode solder mark on the negative electrode current collector, and by reasonably setting the area of ​​the positive electrode welding area and the negative electrode welding area, can take into account the battery's overcurrent capacity as well as the battery's processing quality and processing efficiency, thereby effectively improving the overall performance of the battery.

The application discloses a kind of welding methods of high-strength steel shell and low-strength steel inner shell penetration pipe of jacketed pressure vessel, core step includes: precision pretreatment before welding: size and defect detection, homogenization modification and preheating are carried out to machining bevel; Sequential optimization welding: the sequence of "first inside then outside" and "sectional skip welding" is combined, and prior to pipe side (high-strength steel side) is carried out backing surfacing welding; Strict welding control: the combined process of tungsten argon arc welding backing and electrode arc welding filling is used, interlayer temperature, heat input and weld size are accurately controlled; Timely and effective post-welding treatment: high-temperature post-heat treatment is carried out immediately after welding, or according to the structure constraint degree, choose whole intermediate annealing.The application effectively decomposes and releases welding stress through systematic process combination, inhibits the generation of crack, and significantly improves the welding quality and reliability of jacketed vessel penetration pipe joint.

This utility model relates to the field of welding equipment technology, specifically to an ultrasonic battery frame welding device with multiple welding heads. It includes a frame, a top plate connected to the upper part of the frame, and several cylinders mounted on the top plate. A connecting frame is fixedly connected to each cylinder, and a mounting box is driven to the lower end of the piston rod of each cylinder. A mounting ring is fixedly connected to the lower part of the mounting box. This utility model uses multiple cylinders to drive multiple welding heads to work synchronously, enabling simultaneous welding of different parts of the new energy vehicle battery frame. This significantly shortens the welding cycle, improves production efficiency, and is suitable for large-scale mass production. Through the clutch control of the lifting insulating rod and the power socket, the welding head only activates the cooling element when not welding, avoiding energy loss during the welding process and effectively reducing the temperature of the welding head.

The application discloses a power device, a circuit board assembly and electronic equipment, and relates to the technical field of electrical equipment, comprising a body, a first surface and a second surface oppositely arranged along a first direction, the first surface having a welding area; a plurality of limiting members are arranged on the first surface and protrude from the first surface along the first direction, and the plurality of limiting members are arranged at intervals on the periphery of the welding area, and the limiting members abut against the heat sink along the first direction. When the welding area of the body and the heat sink are welded by means of solder paste or other welding materials, the plurality of limiting members are arranged at intervals on the periphery of the welding area and abut against the heat sink, which can effectively prevent the power device from tilting due to the flow of welding materials or thermal stress during the welding process, ensure that the power device remains flat after welding, thereby improving the welding quality and reliability, enhancing the heat dissipation performance, reducing the risk of poor electrical contact or uneven heat distribution caused by the tilting of the power device, and improving the safety and reliability of the power device.

The application relates to the technical field of batteries, in particular to a pole post and cover plate assembly. The pole post comprises a turn-up part, a post body part and a plate body part arranged along the axial direction of the pole post in sequence; the turn-up part can be folded outward away from the axis of the pole post; the inner side ring wall of the turn-up part is formed into a first wall part before being folded, the outer side ring wall of the turn-up part is formed into a second wall part extending along the axial direction of the pole post, at least part of the first wall part is arranged in an inclined mode, so that the thickness dimension of one end of the turn-up part away from the post body part in the radial direction of the pole post is smaller than the thickness dimension of one end of the turn-up part close to the post body part; the thickness dimension of one end of the turn-up part away from the post body part in the axial direction of the pole post is smaller than the thickness dimension of one end of the turn-up part close to the post body part in the axial direction of the pole post after being folded, so that the problem that the turn-up part is prone to warping after being pressed is solved, the post body part can be completely attached to the outer connecting sheet of the battery cell needing to be connected, the risk of false welding is reduced, and the welding reliability is improved.

The application provides a stepped protection treatment method for a copper pad of a WBCSP substrate and the WBCSP substrate. The treatment method obtains a substrate provided with a copper pad. A solidified solder resist layer with a preset opening is formed on the substrate, so that a preset area of the copper pad is exposed. The preset area comprises a single copper layer and a copper oxide layer attached to the surface of the single copper layer. The substrate on which the solidified solder resist layer is formed is immersed in a benzotriazole aqueous solution. The benzotriazole reacts with the single copper layer to form a benzotriazole-copper complex film on the surface of the single copper layer. The benzotriazole does not react with the copper oxide layer. The substrate on which the benzotriazole-copper complex film is formed is subjected to pickling to remove the copper oxide layer. An alkaline solution is used to perform stripping treatment on the substrate after pickling to remove the benzotriazole-copper complex film. Surface treatment is performed on the substrate after the stripping treatment is completed to form an organic soldering film on the preset area of the copper pad.

This invention relates to the field of automated welding technology, specifically to an automated welding fixture and method for laser wire-filler welding of circumferential welds. The fixture includes a laser welding torch, a rotating system, and a control system. The laser welding torch is equipped with a wire feeding mechanism and is fixed on the welding torch support of the rotating system. The rotating system consists of a motor mechanism, a rotating support, and a rotating base. The rotating base includes a welding torch support, an XY bidirectional fine-tuning slide, a rotating platform, and a bearing assembly. This invention uses a motor-driven rotating mechanism to rotate the welding torch at a uniform speed, ensuring that the laser spot and wire feeding position are always aligned with the center of the circumferential weld. The control system coordinates the adjustment of laser power, wire feeding speed, and rotation speed to achieve automated welding of the circumferential weld.

The invention provides a quick-welding and high-reliability brazing film and a preparation method and a using method thereof, and belongs to the technical field of welding. According to the invention, a Ni / Al self-propagating reaction film is combined with a low-melting-point Sn weld-aid layer by relying on hot-pressing, electro-deposition and anodic oxidation composite process molding, and a multi-layer structure brazing film of a porous energetic film-Ni reaction layer-Sn anchoring layer is designed. According to the method, multi-point laser triggering and gradient pressure synergistic effect are combined, accurate regulation and control of multi-point triggering-reaction-welding can be achieved, the film is subjected to global uniform self-propagating exothermic reaction, rapid brazing connection is achieved, and an alloying connection interface with high bonding strength is formed. The process is simple, convenient and rapid, high in production efficiency and low in cost, the production period can be remarkably shortened, the problems that a traditional film interface is weak in bonding force, prone to layering and falling off and the like are effectively solved, welding faces of any shapes can be adapted, and a new technical approach is provided for efficient connection of complex components.

The invention relates to the technical field of new energy, in particular to a composite current collector assembly and a preparation method thereof, a pole piece assembly and a preparation method thereof and a battery. The composite current collector assembly comprises an insulating layer, a conductive layer and a weld-aid coating, the conductive layer is located on at least one side of the insulating layer, the conductive layer comprises an electrode active area and a tab blank area connected with the electrode active area, and the weld-aid coating is located on the conductive layer corresponding to the tab blank area. The raw materials of the weld-aid coating comprise modified rosin, organic acid, organic amine, a wetting agent, a surface active agent and a corrosion inhibitor. By selecting the raw materials of the weld-aid coating, the traditional transfer welding procedure can be omitted, the problem that the welding process is tedious is solved, and the welding quality is good.

The application relates to the technical field of welding processing equipment, and discloses a component positioning and welding tool of a remote controller, which comprises a base, a supporting base is arranged at the middle of the bottom end of the base, an electrical box for providing control and energy supply for the whole device is arranged in the supporting base; a conveying and discharging mechanism is arranged at the middle of the top end of the base and is used for conveying a printed circuit board in the remote controller and discharging static electricity generated by friction on the printed circuit board. When the printed circuit board on the remote controller is subjected to welding processing of metal springs, ion wind generated by an ion fan in the removing protection mechanism is pressurized through a flat accelerating part and can be concentratedly sprayed to a welding area, so that partial static electricity generated in the welding process can be comprehensively eliminated, hidden damage of integrated circuits caused by static electricity residues can be avoided, the ion wind can also blow the flexible grounding sheet to contact the plate body, a secondary static electricity discharging channel is formed, and double protection is provided for static electricity removal.

This utility model relates to the field of electronic component technology, and in particular to a surface-mount electronic component that overcomes the problems of existing surface-mount electronic components that may damage circuit boards, have poor soldering to circuit boards, and are not conducive to automated pick-up. The functional ceramic body has upper and lower electrodes on its upper and lower surfaces, respectively. Upper and lower leads are soldered to the upper and lower electrodes and extend from the functional ceramic body. An encapsulation layer covers the functional ceramic body, the upper and lower electrodes, and the encapsulated portion of the upper and lower leads. The portions of the upper and lower leads exposed in the encapsulation layer include a starting segment extending from the functional ceramic body, a downward bending segment from the starting segment, and a horizontal bending segment bending downwards from the downward bending segment towards the bottom of the functional ceramic body. The horizontal bending segment continues to extend and forms a support portion that contacts or tends to contact the bottom surface of the encapsulation layer. The bottoms of the horizontal bending segments of the upper and lower leads are on the same plane, and at least a portion of the horizontal bending segments of the upper and lower leads is the solder joint of the electronic component on the circuit board.

This utility model relates to the field of brush wire spot welding technology, specifically a brush wire spot welding device, including a base plate and an extrusion positioning mechanism. A fixed base and a mounting box are fixedly connected to the upper side of the base plate. Two symmetrically arranged U-shaped plates are fixedly connected to the upper side of the fixed base. Double-ended lead screws are rotatably connected inside each of the two U-shaped plates. Two lead screw sleeves adapted to the double-ended lead screws are provided on each of the two lead screw sleeves. Horizontal plates are fixedly connected to the lower sides of the four lead screw sleeves. An array of guide wheels is rotatably connected to the upper sides of the four horizontal plates. The extrusion positioning mechanism includes a mounting base located above the mounting box. This utility model uses a handwheel to drive the double-ended lead screws to adjust the spacing of the guide wheels. Combined with a cylinder pushing a wedge block mechanism and the elastic clamping of the pressure plate, it achieves precise alignment and tight fit of the two brush wires. This design effectively prevents displacement or loosening during the welding process, ensures the consistency of the spot welding position, and significantly improves welding quality and reliability.

The utility model discloses a copper jumper pin-free packaging structure with a side tin climbing function, which comprises a metal frame, a plurality of chip packaging units arranged in a matrix mode are arranged on the metal frame, and two Y-direction long connecting ribs and two X-direction long connecting ribs are arranged on the peripheral side of each chip packaging unit. The Y-direction long connecting rib is communicated with the two X-direction long connecting ribs; each chip packaging unit comprises a chip welding area arranged in the middle, a left metal contact point and a right metal contact point, the left metal contact point and the right metal contact point are arranged on the left side and the right side of the chip welding area, the right metal contact point is connected with the chip welding area, and the left metal contact point is connected with the adjacent Y-direction long connecting rib and the X-direction long connecting rib. And the semiconductor chip is connected with the left side metal contact point through a copper jumper wire. According to the utility model, the copper jumper wire is adopted for welding, the welding reliability is improved, the external metal contact point realizes a complete tin climbing function, and the welding firmness of a product is improved.

The invention relates to an oil-cooled motor iron core structure, an oil-cooled motor and a rotary vane welding combination determining method. The oil-cooled motor iron core structure comprises a first assembly, a second assembly and a third assembly. The component I is laminated by a first punching sheet and a rotary sheet, a boss group is arranged on the outer circle side of the component I, and the boss group comprises a first type of boss with a welding groove and a second type of boss without a welding groove; in the first assembly, a first welding bead communicated with the cooling oil channel is formed through the interval between the boss sets, and an end butt welding bead isolated from the cooling oil channel is formed through welding grooves in the first type of bosses at the two axial ends of the first assembly. The assembly II and the assembly III are laminated by a second punching sheet and a rotary sheet, and an oil injection port and another welding groove are respectively formed in the assembly II and the assembly III; the other welding groove of the second assembly is aligned and communicated with the butt welding bead at the head end of the first assembly to form a second welding bead; the other welding groove of the third assembly is aligned and communicated with the butt welding bead at the end part of the tail end of the first assembly to form a third welding bead; the radial inner sides of the second welding bead and the third welding bead are blocked by the second type of bosses so that the second welding bead and the third welding bead can be isolated from the cooling oil channel.

The invention provides a reflow soldering selective temperature control device and method based on neural network PID control, and relates to the technical field of selective temperature control, visual scanning monitoring of distribution of elements with different heat capacities is carried out on a PCB, temperature field data is acquired from visual scanning information, and real-time element size information of a preset key area is extracted; performing control quantity analysis, and outputting the control quantity of the independent temperature control module corresponding to the preset key area; carrying out selective temperature compensation analysis on a preset key area, carrying out selective temperature compensation control according to compensation analysis data, carrying out adjustment analysis on adjustment parameters of a micro heater, carrying out parameter adjustment control on the micro heater according to adjustment analysis data, and obtaining selective temperature control data; dynamic and accurate local temperature compensation can be realized for elements with different heat capacities on the same PCB, so that the temperature difference between the elements is remarkably reduced, and welding defects caused by different heat capacities of large and small elements are avoided.

This utility model discloses a solder mask opening structure for surface mount components, relating to the field of printed circuit board design technology. The solder mask opening structure for surface mount components includes a printed circuit board, which comprises a solder mask layer and a metal layer. A solder mask opening is provided on the solder mask layer. The metal layer is connected to the solder mask layer, and a first pad and a second pad are provided on the side of the metal layer facing the solder mask layer. The technical solution of this utility model fully considers the characteristics of small pad spacing and tiny solder shoulder size of 01005 surface mount components. By eliminating the solder mask bridge between the first and second pads, the first and second pads are fully exposed within the solder mask opening. Furthermore, by controlling the reasonable gap between the outer walls of the first and second pads and the inner wall of the solder mask opening, the solder paste printing and soldering process is optimized, fundamentally solving common problems such as solder balls, tombstoning, and cold solder joints in the SMT soldering process of 01005 surface mount components.

The embodiment of the application provides an electrode assembly, a manufacturing method and device, a battery monomer, a battery, and an electric device. The electrode assembly is used for a battery monomer (100) and comprises: first and second polar plates (1) and (2) with opposite polarities, the first and second polar plates (1) and (2) each comprising a main body part (11) and at least one tab group (12), the first and second polar plates (1) and (2) are wound around a winding axis (K) to superimpose the respective main body parts (11) to form a winding main body (S), and the main body part (11) has a plurality of polar plate layers (111) along the radial direction of the winding main body (S) after being wound; wherein the tab group (12) comprises a plurality of tabs (12') arranged in a stack, the plurality of tabs (12') protrude from the main body part (11), and in the radial direction, at least one polar plate layer (111) with the same polarity is arranged between at least two adjacent tabs (12') in the tab group (12).

The application discloses a SnBiInTe alloy solder suitable for high-density packaging and a preparation method and application thereof, and belongs to the technical field of low-temperature brazing filler metal and preparation thereof. The application solves the problems of low tensile elongation and poor plasticity of the existing Sn-Bi eutectic solder. The application effectively improves the mechanical properties of the solder by adding 2.5% of In element in the Sn-Bi solder, so that the tensile strength of the solder and the shear strength of the joint are improved, and the application range of the Sn-Bi solder in the electronic packaging field is widened. Meanwhile, the mechanical properties of the solder are effectively improved by adding 1%-3% of Te element in the solder through the solid solution strengthening and second phase strengthening mechanism, and the reliability of the welded joint is greatly improved.

The invention relates to the technical field of solar cells, and provides a cell electrode printing method, a back contact cell and a photovoltaic module. The method comprises the steps that a screen printing plate is not changed, an N-type auxiliary grid and a P-type auxiliary grid are firstly printed, a main grid is finally printed, main grid printing is a sequence of overlapping and printing the main grid in three working procedures, and a composite electrode structure is formed on the back face of the battery. According to the invention, the step effect of the auxiliary grid printing can be eliminated and the forming uniformity of the main grid can be optimized through the matching of the printing sequence of the first auxiliary grid and the multi-channel main grid, so that the line width of the auxiliary grid is effectively reduced, the height-width ratio is improved by about 3-5%, the unit consumption of silver paste is saved by about 5-10% under the condition that the design line width of the screen printing plate is not changed, and meanwhile, a foundation is laid for 1-3 mu m lower detection of the design line width of the screen printing plate; and the series resistance and electrode shading loss can be effectively reduced.

The application provides a Sn58Bi low-temperature soldering tin ball surface treatment agent and a preparation method thereof, and relates to the technical field of metal surface treatment.The Sn58Bi low-temperature soldering tin ball surface treatment agent is composed of tin ball activators (diethylenetriamine pentaacetic acid and ethylenediamine tetraacetic acid), a film forming agent, a surfactant, a dispersing agent, an antioxidant, a defoaming agent, a stabilizer, a preservative, deionized water and the like.The surface treatment agent can effectively improve the soldering reliability of the Sn58Bi soldering tin ball, prolong the service life of the soldering tin ball, has good oxidation resistance and corrosion resistance under the premise of not affecting the soldering performance, and is suitable for various complex working environments.Meanwhile, the preparation process of the Sn58Bi low-temperature soldering tin ball surface treatment agent is simple, convenient to use, has good physical stability after film forming, can avoid oxidation and the invasion of pollutants during long-term storage of the soldering tin ball, and improves the quality of the soldering tin ball.

The invention discloses a multi-cavity vehicle-mounted board end micro-floating TYPE-C connector and a PCB welding method, the multi-cavity vehicle-mounted board end micro-floating TYPE-C connector comprises a carrier board main body and a plurality of TYPE-C connector bodies, the front end of the carrier board main body is provided with a plurality of plugging cavities, each plugging cavity is internally provided with a connector slot, the connector bodies are plugged in the slots from back to front, and the TYPE-C connector bodies are connected with the carrier board main body. And the pins at the rear end are exposed through hollow positions below the slots. The rear end of the carrier plate main body is fixedly provided with a rear positioning body, and the connector body is limited in the slot. And a fit clearance is arranged between the connector body and the slot, so that the connector body can slightly float. The invention further provides an assembling method of the connector and a welding method of the connector and a PCB, the problem that the coplanarity of PINs of a multi-cavity connector is poor is solved, the welding yield and the electrical connection reliability are improved, and the connector is suitable for multi-interface equipment such as a vehicle-mounted domain controller.

The invention relates to a CCS integrated structure based on ultrasonic direct welding and a manufacturing method. The CCS integrated structure based on ultrasonic direct welding comprises a base material body, a folding part and a positioning piece. A first bonding pad is arranged on the base material body; the folding part is connected with the base material body, a second bonding pad is arranged at the end, away from the base material body, of the folding part, and the folding part is constructed to be capable of being bent in the direction of the base material body so that the second bonding pad can be overlapped with the first bonding pad to form an ultrasonic welding area; and the positioning piece is arranged between the base material body and the folding part and is used for fixing the relative position between the base material body and the folding part after the second bonding pad and the first bonding pad are overlapped. According to the CCS integrated structure based on ultrasonic direct welding and the manufacturing method, the special requirement for the thickness of a common base material in the ultrasonic welding process can be reduced.

The invention discloses an air-cooled ducted fan motor controller and an installation method thereof, the air-cooled ducted fan motor controller is arranged in an air-cooled duct, and the air-cooled ducted fan motor controller comprises: a heat dissipation shell, the interior of which is an accommodating space; a control board; the power main loop module and the control panel are arranged in the heat dissipation shell in the axial direction, and the controlled end of the power main loop module is connected to the output end of the control panel; the power main loop module comprises a plurality of power main loop units, and the heating end of each power main loop unit is welded and fixed to the inner wall of the heat dissipation shell. The heating end of the power main loop unit is directly fixed to the inner wall of the heat dissipation shell through the vacuum reflow soldering technology, efficient heat conduction of a heating component and a heat dissipation structure is achieved, the heat dissipation performance is further enhanced, heat resistance is greatly reduced, stable operation of the controller under the high-load working condition is guaranteed, and the service life of the controller is prolonged. And the heat dissipation requirements of a high-power motor and a controller can be met.

The utility model relates to photovoltaic preparation technical field provides a kind of welding device, including first pad, second pad, electromagnetic flowmeter group and heater. First pad and second pad are oppositely arranged, first pad and second pad can be mutually matched to be used for clamping and setting welding busbar and multiple welding strips, multiple grooves of parallel arrangement are opened in the surface of second pad close to first pad, the wall surface of each groove has magnet layer, each groove is used to one-to-one corresponding plastic welding strip. Electromagnetic flowmeter group includes multiple electromagnetic flowmeters, and electromagnetic flowmeter includes signal collector and first electrode and second electrode respectively connected with signal collector, the first electrode and second electrode of each electromagnetic flowmeter are respectively corresponding to access the both ends of each groove. Heater is set on second pad, for heating and melting welding strip. The welding device of the application is high in reliability and can detect false welding problem.

The invention relates to the technical field of semiconductor manufacturing, and provides an electroless nickel-gold process of a multilayer ceramic substrate, which comprises the following specific steps: S1, pretreating the multilayer ceramic substrate to obtain a pretreated multilayer ceramic substrate; s2, depositing a copper metal layer on the pretreated multilayer ceramic substrate to obtain a pretreated multilayer ceramic substrate with a metal surface; s3, the pretreated multilayer ceramic substrate with the metal surface is subjected to palladium alloy electroplating and chemical nickel plating to form a nickel plating layer, and a metalized multilayer ceramic substrate is obtained; in the step S1, the pretreatment comprises surface cleaning and activating treatment; in the step S3, when the palladium alloy is electroplated, the adopted electrolyte comprises lanthanum salt and cobalt salt. According to the technical scheme, the problem that the corrosion resistance of chemical nickel plating of the multilayer ceramic substrate is poor in the prior art is solved.

The application relates to a bidirectional four-needle-angle infrared receiver support, which comprises a base plate, a plurality of supports arranged in an array are arranged on the base plate, each support comprises a packaging groove, four pins, a mounting plate and a shielding plate, a plurality of packaging grooves are arranged in an array on the base plate, the four pins are connected with the groove walls on the two sides of the packaging groove respectively in pairs, the two pins located on the upper side of the packaging groove are connected with the mounting plate, the two pins located on the lower side of the packaging groove are respectively provided with a first solder pad and a second solder pad matched with the lower side of the mounting plate, and the shielding plate is connected with one end of the mounting plate. The application belongs to the field of infrared receiving equipment, welding reliability is improved, and the welding yield is increased from 90% to 99.5%; the shielding plate is arranged, which is helpful for improving signal quality, the support is convenient to position, and the production efficiency of chip packaging is improved.

The utility model relates to battery technology field provides a kind of battery monomer, it includes shell component and the electric core housed in shell component, electric core includes current collector, main tab and at least one auxiliary tab are welded with interval on current collector, main tab is provided with the transition part for being connected with auxiliary tab, the end of main tab away from current collector and the end of auxiliary tab away from current collector are welded with shell component. Main tab and auxiliary tab are welded with current collector separately, even if main tab breaks at its connection with current collector, electric core can output or input current by auxiliary tab and transition part. For example, the current in electric core sequentially passes through auxiliary tab and transition part and enters main tab. In this way, the welding reliability of battery monomer can be effectively improved, and the service life of the battery monomer can be effectively improved.

A laser pipe cutting machine for an equipment pipe frame comprises a main machine frame, a sliding driving table, a blanking table and a slag remover, the slag remover comprises a supporting pipe located at the axis of a pipe and a supporting seat arranged on the supporting pipe and located on the inner side of the pipe, and the supporting seat comprises two limiting baffles symmetrically distributed around a cutting point; a deslagging cavity is formed among the two limiting baffles, the supporting pipe and the inner wall of the pipe, a water distributor is arranged in the position, corresponding to the deslagging cavity, of the outer wall of the supporting pipe, and the water distributor is configured to spray water mist into the deslagging cavity. According to the device, the slag remover extending into the pipe is arranged, the closed slag removal cavity is defined by the symmetrically-distributed limiting baffles, the supporting pipe and the inner wall of the pipe at the cutting point, the water distributor sprays water mist into the cavity so that slag can be rapidly cooled, and meanwhile the water supply pipe and the backflow pipe form a sleeve structure; and a slag-water mixture is recovered instantly through cooperation of the backflow hole and the negative pressure device, slag is actively removed, and it is guaranteed that the inner wall of the pipe is clean.

The application provides a superconducting coil with a superconducting joint welding tool, which comprises a basic coil winding framework, superconducting wires and two terminal cups. The cross section of the basic coil winding framework is in a "C" type structure, which comprises a closed loop body structure, a first loop protruding edge and a second loop protruding edge. Two first wire passing holes are arranged on the closed loop body structure along the circumferential direction. The superconducting wires are wound outside the closed loop body structure and two welding lead wires are drawn out. The two terminal cups are arranged on the inside of the closed loop body structure along the circumferential direction of the closed loop body structure. The bottom of each terminal cup is provided with a second wire passing hole. The two welding lead wires are sequentially passed through the corresponding first wire passing hole and second wire passing hole respectively and are wound with the wires to be welded. The two terminal cups are used for containing the welding material and the wires after being wound with each other, so as to realize the welding of the two welding lead wires and the wires to be welded.