CN117316619A - Welding and winding integrated high-temperature superconducting coil winding device and joint welding method thereof - Google Patents
Welding and winding integrated high-temperature superconducting coil winding device and joint welding method thereof Download PDFInfo
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- CN117316619A CN117316619A CN202311375094.6A CN202311375094A CN117316619A CN 117316619 A CN117316619 A CN 117316619A CN 202311375094 A CN202311375094 A CN 202311375094A CN 117316619 A CN117316619 A CN 117316619A
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- 238000004804 winding Methods 0.000 title claims abstract description 97
- 238000003466 welding Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 92
- 238000009423 ventilation Methods 0.000 claims abstract description 42
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/048—Superconductive coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The invention discloses a welding and winding integrated high-temperature superconducting coil winding device and a joint welding method thereof, comprising a winding framework, a heating and fastening device, a limiting ventilation device and a pressure regulating device; the winding framework is arranged on a winding machine and is wound by a motor driving coil; the two ends of the heating and fastening device are connected with a heating power supply, and the inner side of the heating and fastening device is clung to the high-temperature superconducting coil to perform the functions of heating and fastening; the limiting ventilation device is sleeved outside the heating and fastening device, and the pressure adjusting device is arranged on the limiting ventilation device and plays a role in adjusting the pressure of the heating and fastening device; the limiting ventilation device is provided with a ventilation hole, and the heat gun plays a role in auxiliary heating through the ventilation hole. The invention realizes the welding and winding integration of the high-temperature superconducting coil, avoids the reduction of the coil performance caused by bending of the joint, realizes the common winding of the same superconducting coil by a plurality of sections of superconducting wires, and has the characteristics of convenient carrying, simple operation, safety and reliability.
Description
Technical Field
The invention relates to the field of superconducting coil winding and superconducting joint welding, in particular to a welding and winding integrated high-temperature superconducting coil winding device and a joint welding method thereof.
Background
The second-generation high-temperature superconducting tape is a coated conductor, the structure of the second-generation high-temperature superconducting tape is a strip-shaped structure, and the superconducting magnet wound by the second-generation high-temperature superconducting tape is considered to be the most promising next-generation superconducting magnet due to the advantages of high magnetic field intensity, high operating temperature, large safety margin and the like, and is widely applied to the fields of nuclear magnetic resonance spectrometers, magnetic levitation trains, particle accelerators and the like at present.
The preparation process of the second-generation high-temperature superconducting tape is quite complex, the length of the superconducting tape prepared by adopting the prior technical means is generally less than 500m, and the superconducting tape with a length of several kilometers is generally required for manufacturing a high-temperature superconducting magnet. Therefore, in the process of manufacturing a high-temperature superconducting magnet, a superconducting joint needs to be manufactured by welding, and a plurality of superconducting tapes are welded together.
The traditional high-temperature superconducting joint welding method is mainly based on two methods, one is that the welding is directly carried out through an electric iron in the winding process, and the heat and the pressure cannot be uniformly applied in the mode, so that the welded superconducting joint is high in resistance, poor in flatness and greatly influences the performance of the superconducting magnet; another way is welding by means of joint welding devices prior to winding, which devices are very complex in construction. In addition, the device usually completes welding on a horizontal plane, and then winds the superconducting coil after the welding is completed, but the welding can cause the change of the flexibility of the belt material at the superconducting joint, the damage of the superconducting belt material can be caused in the process of winding the belt material, and further the problems of quench of the superconducting magnet and the like are caused.
Disclosure of Invention
In order to overcome the problems, the invention provides a welding and winding integrated high-temperature superconducting coil winding device and a joint welding method thereof, wherein the device can finish the welding of a superconducting joint in the high-temperature superconducting coil winding process, realize the effects of uniform pressurization and heating in the welding process, greatly reduce the resistance of the superconducting joint and realize the welding and winding integration of the high-temperature superconducting coil.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a welding and winding integrated high-temperature superconducting coil winding device comprises a winding framework, a heating and fastening device, a limiting ventilation device and a pressure regulating device;
the winding framework is arranged on a winding rotating shaft of the winding machine, and is driven by a motor to complete the winding of the high-temperature superconducting coil; the unfinished high-temperature superconducting coil wound by the current high-temperature superconducting wire is fixed on the winding framework, and the end part of the unfinished high-temperature superconducting coil is fixed by a first welding spot; one end of the next high-temperature superconducting wire is fixed on the wire guide disc, and the other end of the next high-temperature superconducting wire is fixed on the high-temperature superconducting wire through a second welding point; an overlapping portion exists between the first high temperature superconducting wire and the second high temperature superconducting wire.
The inner side of the heating fastening device is closely attached to the unfinished high-temperature superconducting coil, and particularly, the inner side of the heating fastening device is arranged at the overlapped part between the current high-temperature superconducting wire and the next high-temperature superconducting wire; the limiting ventilation device is sleeved outside the heating and fastening device, and inner walls of two sides of the limiting ventilation device are tightly attached to the heating and fastening device.
Further, the two ends of the heating and fastening device are connected with a heating power supply through wires, and the heating and fastening device is uniformly heated by electrifying the heating power supply in the joint welding process.
Further, the upper part of the limiting ventilation device is provided with a fastening hole and an air inlet hole, and two ends of the limiting ventilation device are provided with air outlet holes. The pressure adjusting device is arranged on the fastening hole, so that uniform pressurization and pressure adjustment of the heating fastening device are realized. The hot air gun realizes the auxiliary heating of the superconducting joint through the air inlet hole and the air outlet hole.
Further, the two ends of the heating and fastening device are arc-shaped, so that the angle of hot air blown out from the air outlet hole is adjusted, and other objects are prevented from being damaged by hot air.
Furthermore, the heating fastening device is made of high-heat-conductivity alloy materials so as to improve the heating efficiency; the surface of the heating fastening device is sprayed with a layer of polytetrafluoroethylene film, and is wrapped with polyimide adhesive tape as insulation.
Furthermore, the limiting ventilation device and the pressure regulating device are made of high-temperature resistant alloy materials, so that material deformation caused by high-temperature hot air is avoided; and a layer of polytetrafluoroethylene is sprayed on the inner wall of the limiting ventilation device to serve as insulation.
The method for welding the joint of the welding-winding integrated high-temperature superconducting coil winding device comprises the following specific steps of:
before winding the high-temperature superconducting coil, winding a plurality of high-temperature superconducting wires required by winding on the wire disc for standby, and then fixing one end of the current high-temperature superconducting wire on the winding framework for winding;
after the current high-temperature superconducting wire is wound, fixing the end part of the superconducting wire on the unfinished high-temperature superconducting wire through the first welding spot;
step (3), fixing one end of the next high-temperature superconducting wire on the unfinished high-temperature superconducting wire coil through the second welding spot, and fixing the other end of the next high-temperature superconducting wire on the wire coil, wherein a part of the two superconducting wires are overlapped;
step (4) solder is placed at the overlapped part between the two high-temperature superconducting wires, soldering flux is uniformly smeared on the surfaces of the superconducting wires, and the heating and fastening device and the limiting ventilation device are arranged on the overlapped part;
the pressure regulating device is arranged on the limiting ventilation device, and the pressure of the pressure regulating device is regulated through the fastening hole, so that the heating fastening device is uniformly stressed;
step (6), connecting the heating power supply with two ends of the heating fastening device, switching on the power supply, adjusting the current to a proper value, and detecting the surface temperature of the heating fastening device at any time;
step (7) opening a heat gun, discharging air through the air inlet Kong Jinfeng on the limiting ventilation device and through the air outlet holes, continuously moving the heat gun to enable the heat gun to alternately enter air from each air inlet, realizing auxiliary heating, and detecting the surface temperature of the heating fastening device at any time;
step (8), after confirming that the surface temperature of the heating and fastening device reaches the target temperature, keeping heating for a period of time until no solder is precipitated at the side end of the superconducting tape, and proving that the welding is completed;
step (9) turning off the heating power supply and the hot air gun, spraying alcohol on the surface of the welding and winding integrated high-temperature superconducting coil winding device to realize cooling, and removing the heating fastening device, the limiting ventilation device and the pressure regulating device after the temperature is reduced, so as to clean residues on the surface of the superconducting joint and finish welding;
and (10) repeating the step (1) and the step (9) until the high-temperature superconducting coil is wound.
Compared with the prior art, the invention has the following beneficial effects:
(1) The welding and winding integrated high-temperature superconducting coil winding device and the joint welding method thereof realize uniform pressurization and heating in the superconducting joint welding process, and greatly reduce the joint resistance of the superconducting joint;
(2) The welding and winding integrated high-temperature superconducting coil winding device and the joint welding method thereof have the advantages of simple design structure and convenient operation, and realize the welding and winding integration in the high-temperature superconducting coil winding process;
(3) The welding and winding integrated high-temperature superconducting coil winding device and the joint welding method thereof, which are designed by the invention, avoid the re-bending and winding of the superconducting joint, and greatly improve the safety of the magnet;
drawings
FIG. 1 is a schematic diagram of a welding-winding integrated superconducting coil winding device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the heating and fastening device and the spacing ventilation device according to the embodiment of the present invention;
FIG. 3 is a flow chart of a method for winding a high temperature superconducting coil and welding a superconducting joint according to an embodiment of the present invention.
In the figure: 1: unfinished high temperature superconducting coils; 2: winding a framework; 3: heating the fastening device; 4: a limit ventilation device; 5: a pressure regulating device; 6: a heat gun; 7: a heating power supply; 801: a first welding spot; 802: a second welding spot; 9: a wire disc; 401: a fastening hole; 402: an air inlet hole; 403: and an air outlet hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the drawings, like structural elements are referred to by like reference numerals and components having similar structure or function are referred to by like reference numerals. The dimensions and thickness of each component shown in the drawings are arbitrarily shown, and the present invention is not limited to the dimensions and thickness of each component. The thickness of the components is exaggerated in some places in the drawings for clarity of illustration.
The welding and winding integrated high-temperature superconducting coil winding device can wind high-temperature superconducting coils in various shapes. The drawing is a welding and winding integrated high-temperature superconductive runway coil winding device of an exemplary embodiment of the invention, and when the high-temperature superconductive coil of other shapes is wound by adopting the welding and winding integrated high-temperature superconductive runway coil winding device, the structure of the device shown in the drawing is replaced by a structure corresponding to the high-temperature superconductive coil of other shapes.
As shown in fig. 1, the welding and winding integrated high-temperature superconducting coil winding device in the embodiment of the invention comprises an unfinished high-temperature superconducting coil 1, a winding framework 2, a heating and fastening device 3, a limit ventilation device 4, a pressure adjusting device 5, a hot air gun 6, a heating power supply 7, a first welding point 801, a second welding point 802 and a wire guide plate 9. The winding framework 2 is arranged on a rotating shaft of a winding machine, and is driven by a motor to complete winding of the high-temperature superconducting coil; the unfinished high-temperature superconducting coil 1 is arranged on the winding framework 2 and is formed by winding a first high-temperature superconducting wire, and the end part of the unfinished high-temperature superconducting coil is fixed through the first welding point 801; one end of a second high-temperature superconducting wire is fixed on the wire guide plate 9, the other end of the second high-temperature superconducting wire is fixed on the unfinished high-temperature superconducting coil 1 through the second welding point 802, and an overlapped part is arranged between the two superconducting wires; one side of the heating and fastening device 3 is tightly attached to the overlapped part of the two superconducting wires, so that the heating and fastening effects are achieved; the limiting ventilation device 4 is sleeved outside the heating and fastening device and plays a role in auxiliary heating; the pressure regulating device 5 passes through the limiting ventilation device 4, and the end part of the pressure regulating device is tightly attached to the heating fastening device 3, so that the heating fastening device 3 is uniformly pressurized.
The two ends of the heating and fastening device 3 are connected with the heating power supply 7 through wires, and the heating and fastening device 3 realizes uniform heating in the welding process in a current heating mode.
The heat gun 6 plays a role in auxiliary heating in the process of welding joints.
The two ends of the heating and fastening device 3 are arranged in arc structures near the first welding point 801 and the second welding point 802, so as to avoid the hot air blown by the hot air gun 6 from damaging other objects.
A temperature sensor may be provided inside the heating and fastening device 3 to detect the temperature of the superconducting wire during the welding of the superconducting joint.
The heating and fastening device 3 is generally made of alloy materials with high heat conductivity, and has the advantages of quick temperature rise, good heat conduction performance and the like; the surface of the insulating material is usually sprayed with a layer of polytetrafluoroethylene film, and is wrapped with polyimide tape as insulation to avoid short circuit during power-on.
The limiting ventilation device 4 and the pressure regulating device 5 are generally made of high-temperature resistant alloy materials so as to avoid deformation and damage of the materials in the heating process; and a polytetrafluoroethylene film is sprayed on the inner wall of the limiting ventilation device to serve as insulation.
Fig. 2 is a schematic structural diagram of a heating and fastening device and a limiting ventilation device according to an embodiment of the present invention, the limiting ventilation device 4 is configured in an inverted concave structure, inner walls on two sides of the limiting ventilation device are tightly attached to the heating and fastening device 3, the upper surface of the limiting ventilation device 4 is alternately provided with the fastening holes 401 and the air inlet holes 402, and two ends of the limiting ventilation device are provided with the air outlet holes 403; the pressure adjusting device 5 passes through the fastening hole 401 to realize accurate pressure adjustment; the heat gun 6 is supplied with air through the air inlet hole 402 and is discharged with air through the air outlet hole 403, so as to realize auxiliary heating of the heating and fastening device 3.
As shown in fig. 3, the welding-winding integrated high-temperature superconducting coil winding and the joint welding method thereof in the embodiment of the invention are divided into three stages:
the first stage and the winding stage comprise the following steps:
step (1), calculating the length of the high-temperature superconducting wire required by winding in advance, and winding a plurality of high-temperature superconducting wires required by winding onto the wire guide plate 9;
step (2) completing the winding of the current high-temperature superconducting wire, so that the current high-temperature superconducting wire is wound on the winding framework 2, and the end part of the current high-temperature superconducting wire is fixed on the unfinished high-temperature superconducting coil 1 through the first welding point 801;
the second stage, welding preparation stage, includes the following steps:
step (3), fixing the end part of the next high-temperature superconducting wire to be wound on the unfinished high-temperature superconducting coil 1 through the second welding spot 802, wherein a part of the two high-temperature superconducting wires are overlapped to weld a superconducting joint;
filling solder between the overlapped parts of the two high-temperature superconducting wires, and mounting the heating and fastening device 3 and the limit ventilation device 4 on the overlapped parts of the two high-temperature superconducting wires;
step (5) installing the pressure adjusting device 5, and adjusting the pressure through the fastening holes 401 to uniformly stress the heating and fastening device 3;
the third stage, welding stage, includes the following steps:
step (6) connecting the heating power supply 7 to the two ends of the heating and fastening device 3 through wires, turning on the heating power supply 7, and adjusting the current to a proper level so that the joint is heated uniformly;
step (7) opening the heat gun 6 to enable the air inlet of the heat gun to be aligned with the air inlet holes 402, so as to realize auxiliary heating of the joint, and alternately moving the heat gun 6 to all the air inlet holes 402 in the heating process, so that the joint is heated uniformly, and simultaneously monitoring the temperature of the joint;
step (8), after the temperature of the joint reaches the target temperature, maintaining the temperature for a period of time until no solder is separated out from the overlapped part of the two high-temperature superconducting wires, and proving that the welding is finished;
step (9) closing the hot air gun 6 and the heating power supply 7, spraying alcohol on the surface of the welding and winding integrated high-temperature superconducting coil winding device to realize cooling, and removing the heating fastening device 3, the limiting ventilation device 4 and the pressure regulating device 5 after the temperature is reduced, so as to clean residues on the surface of the superconducting joint, and finishing welding;
and (10) finishing winding of the current superconducting wire, and repeating the steps (1) - (9) until the high-temperature superconducting coil is wound.
Claims (5)
1. The welding and winding integrated high-temperature superconducting coil winding device is characterized by comprising a winding framework (2), a heating and fastening device (3), a limiting ventilation device (4) and a pressure regulating device (5); the winding framework (2) is arranged on a winding machine, and is driven by a motor to complete winding of the superconducting coil; the inner side of the heating and fastening device (3) is tightly clung to the unfinished high-temperature superconducting coil (1) to play a role in heating and fastening; the limiting ventilation device (4) is sleeved outside the heating fastening device (3) and plays roles in limiting, ventilation and auxiliary heating; the pressure regulating device (5) passes through the limiting ventilation device (4), and the end part of the pressure regulating device is tightly attached to the heating fastening device (3) to exert pressure uniformly and regulate pressure.
2. The welding and winding integrated high-temperature superconducting coil winding device according to claim 1, wherein the end part of the heating and fastening device (3) is arc-shaped and plays a role in adjusting the air outlet angle; the two ends of the heating fastening device (3) are connected with a heating power supply (7) through wires, and the heating power supply (7) is electrified to realize the function of uniformly heating the superconducting joint.
3. The welding and winding integrated high-temperature superconducting coil winding device according to claim 1, wherein the limiting ventilation device (4) is in an inverted concave shape, inner walls of two sides of the limiting ventilation device are clung to the heating fastening device (3), and the limiting ventilation device (4) comprises a fastening hole (401), an air inlet hole (402) and an air outlet hole (403); the fastening holes (401) and the air inlet holes (402) are respectively and alternately arranged on the upper surface of the limiting ventilation device (4), and the air outlet holes (403) are arranged at two ends of the limiting ventilation device (4).
4. A welding-winding integrated high-temperature superconducting coil winding device according to claim 3, wherein the pressure adjusting device (5) is used for realizing pressure adjustment through the fastening hole (401); the hot air blown out by the hot air gun (6) enters and exits through the air inlet hole (402) and the air outlet hole (403), so that the effect of auxiliary heating of the superconducting joint is realized.
5. A method for winding a high temperature superconducting coil and welding a joint thereof by using the welding-winding integrated high temperature superconducting coil winding device as claimed in any one of claims 1 to 4, comprising the steps of:
step (1), winding a plurality of high-temperature superconducting wires required by winding on a wire guide plate (9);
the winding of the current high-temperature superconducting wire is completed in the step (2), one end of the current high-temperature superconducting wire is fixed on the winding framework (2), and the other end of the current high-temperature superconducting wire is fixed on the unfinished high-temperature superconducting coil (1) through a first welding point (801);
the end part of the next high-temperature superconducting wire is fixed on the unfinished high-temperature superconducting coil (1) through a second welding point (802), and part of the two high-temperature superconducting wires are overlapped;
filling solder into the overlapped part of the two high-temperature superconducting wires, and installing the heating and fastening device (3) and the limiting ventilation device (4) outside the overlapped part of the two high-temperature superconducting wires;
installing the pressure regulating device (5) and regulating the pressure;
step (6), connecting two ends of the heating fastening device (3) with the heating power supply (7) through wires; turning on a heating power supply (7), regulating current to an appropriate value, and monitoring the temperature of the inner surface of the heating and fastening device (3) in real time;
step (7) opening the heat gun (6), moving the heat gun (6) at a constant speed to alternately pass through the air inlet hole (402), and monitoring the temperature of the inner surface of the heating and fastening device (3) in real time;
step (8), when the temperature of the inner surface of the heating and fastening device (3) reaches the target temperature, keeping the temperature for a period of time until no solder is separated out between the two high-temperature superconducting wires;
step (9) closing the hot air gun (6) and the heating power supply (7), cooling the surface of the welding and winding integrated superconducting coil winding device, and removing the heating fastening device (3), the limiting ventilation device (4) and the pressure regulating device (5) after the temperature is reduced, so as to clean residues on the surface of a joint and finish welding;
and (10) repeating the steps (1) - (9) until the superconducting coil is wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311375094.6A CN117316619A (en) | 2023-10-23 | 2023-10-23 | Welding and winding integrated high-temperature superconducting coil winding device and joint welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311375094.6A CN117316619A (en) | 2023-10-23 | 2023-10-23 | Welding and winding integrated high-temperature superconducting coil winding device and joint welding method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117316619A true CN117316619A (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311375094.6A Pending CN117316619A (en) | 2023-10-23 | 2023-10-23 | Welding and winding integrated high-temperature superconducting coil winding device and joint welding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117316619A (en) |
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2023
- 2023-10-23 CN CN202311375094.6A patent/CN117316619A/en active Pending
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