Magnetic spectrometer superconducting coil and method of manufacturing the same

Abstract

The present disclosure provides a magnetic spectrometer superconducting coil and a manufacturing method thereof, and relates to the technical field of superconducting magnets. The magnetic spectrometer superconducting coil comprises: a plurality of framework unit structures arranged in layers, each framework unit structure comprising a framework, a superconducting cable and a quench protection layer arranged in layers in sequence; in two adjacent framework unit structures, the quench protection layer of one framework unit structure contacts the framework in the other framework unit structure.

Description

Technical Field

[0001] This disclosure relates to the technical field of superconducting magnets, and more specifically, to superconducting coils for magnetic spectrometers and methods for manufacturing the same. Background Technology

[0002] The Compact Electron Ejector (CEE) coil is a highly specialized instrument used in scientific research, primarily for measuring and analyzing the properties of low-temperature, high-density nuclear materials.

[0003] However, because the coil is a large-size, small-section structure, the overall rigidity of the coil is poor, and it is easy to deform during the manufacturing process, which poses a huge challenge to processing and assembly. Summary of the Invention

[0004] In view of this, this disclosure provides a superconducting coil for a magnetic spectrometer and a method for its fabrication.

[0005] This disclosure provides a superconducting coil for a magnetic spectrometer, comprising: a plurality of stacked skeleton unit structures, each skeleton unit structure including a skeleton, a superconducting cable, and a quench protection layer stacked sequentially; in two adjacent skeleton unit structures, the quench protection layer of one skeleton unit structure contacts the skeleton of the other skeleton unit structure.

[0006] According to an embodiment of this disclosure, the skeleton includes: an alternating straight skeleton and a curved skeleton; a plurality of first grooves are provided on the straight skeleton, and a plurality of second grooves are provided on the curved skeleton, the first grooves and the second grooves corresponding to the first grooves are alternately connected; a superconducting cable is wound in the connected first grooves and second grooves; wherein, adjacent first grooves do not contact each other; and adjacent second grooves are tangent.

[0007] According to embodiments of this disclosure, it further includes: a coil box, wherein a plurality of stacked skeleton unit structures are disposed within the coil box; and an insulating layer disposed on the quench protection layer in each skeleton unit structure.

[0008] This disclosure also provides a method for manufacturing a superconducting coil for a magnetic spectrometer, comprising: winding a superconducting cable on a first frame; winding copper wires on the superconducting cable to prepare a quench protection layer, thereby completing the winding of the first frame unit structure; setting a second frame on the quench protection layer; winding a superconducting cable on the second frame; winding copper wires on the superconducting cable on the second frame to prepare a quench protection layer, thereby completing the winding of the second frame unit structure; repeating the above operations until the winding of at least two stacked frame unit structures is completed.

[0009] According to an embodiment of this disclosure, winding a superconducting cable on a first frame includes: taking a superconducting cable and winding it on the first frame along alternating first and second slots according to a preset number of turns and a first preset number of layers to complete the preparation of the superconducting cable on the first frame; winding copper wires on the superconducting cable to generate a quench protection layer includes: taking copper wires and winding them on the superconducting cable according to a preset number of turns and a second preset number of layers to generate a quench protection layer.

[0010] According to an embodiment of this disclosure, before the superconducting cable is wound on the first frame along alternating first and second grooves according to a preset number of turns and a first preset number of layers, and the superconducting cable on the first frame is completed, the method further includes: placing the first frame in a coil box; and in the coil box, winding the superconducting cable on the first frame along alternating first and second grooves according to a preset number of turns and a first preset number of layers.

[0011] According to an embodiment of this disclosure, before setting the second frame on the quench protection layer, the method further includes: laying an insulating material on the quench protection layer to form an insulating layer; and setting the second frame on the insulating layer.

[0012] According to embodiments of this disclosure, the method further includes: after completing the winding of at least two stacked skeleton unit structures, assembling a cover plate on the insulating layer of the last skeleton unit structure to complete the winding of the superconducting coil.

[0013] According to embodiments of this disclosure, the method further includes: placing the completed superconducting coil in a sealing fixture; placing a stainless steel soft film between the superconducting coil and the sealing fixture; and casting epoxy resin.

[0014] According to embodiments of this disclosure, the method further includes: laser cutting the coil box parts under a nitrogen protective atmosphere; and argon arc welding the coil box parts to prepare the coil box.

[0015] According to embodiments of this disclosure, the stacked skeleton unit structure enables the wound superconducting cables to be supported by the skeleton, thereby improving the rigidity of the coil and reducing its deformation.

[0016] According to embodiments of this disclosure, by setting up a coil box, placing the skeleton inside the coil box, and then winding the superconducting cable, the skeleton is provided with overall support, the overall rigidity of the coil is enhanced, and the risk of deformation is reduced. Attached Figure Description

[0017] The above and other objects, features and advantages of this disclosure will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1A schematic diagram of the skeleton unit structure of the superconducting coil structure according to an embodiment of the present disclosure is shown.

[0019] Figure 2 A perspective view of a superconducting coil according to an embodiment of the present disclosure is shown schematically;

[0020] Figure 3 A top view of a superconducting coil according to an embodiment of the present disclosure is shown schematically.

[0021] Figure 4 A schematic diagram of a curved segment of a superconducting coil according to an embodiment of the present disclosure is shown.

[0022] Figure 5 A schematic diagram of a straight segment of a superconducting coil according to an embodiment of the present disclosure is shown.

[0023] Figure 6 A schematic cross-sectional view of a superconducting coil in a curved section is shown in one embodiment of the present disclosure.

[0024] Figure 7 A schematic cross-sectional view of a superconducting coil in a straight section according to an embodiment of the present disclosure is shown. Detailed Implementation

[0025] The embodiments of the present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the disclosure. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known systems and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0026] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The terms “comprising,” “including,” etc., as used herein indicate the presence of features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0027] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0028] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0029] Figure 1 A schematic diagram of a superconducting coil structure according to an embodiment of the present disclosure is shown.

[0030] like Figure 1 As shown, this disclosure provides a superconducting coil for a magnetic spectrometer, comprising: a plurality of skeleton unit structures 1-1 stacked together, each skeleton unit structure comprising a skeleton 1-4, a superconducting cable 1-3 and a quench protection layer 1-2 stacked sequentially; in two adjacent skeleton unit structures, the quench protection layer 1-2 in one skeleton unit structure 1-1 contacts the skeleton 1-4 in the other skeleton unit structure.

[0031] In the embodiments of this disclosure, the number of stacked skeleton unit structures can be set as needed. Each skeleton unit structure contains a skeleton layer for supporting the superconducting cable thereon. By stacking multiple skeleton unit structures sequentially, each layer of superconducting cable can receive direct mechanical support, avoiding the problem of local stress concentration and deformation that exists in traditional single-layer skeleton designs.

[0032] By setting a quench protection layer on each layer of the skeleton, the current can be quickly diverted when a quench occurs in the superconducting cable, preventing local overheating.

[0033] According to embodiments of this disclosure, the number of layers in the superconducting cable and the number of quench protection layers can be set as needed.

[0034] According to an embodiment of this disclosure, the skeleton includes: an alternating straight skeleton and a curved skeleton; a plurality of first grooves are provided on the straight skeleton, and a plurality of second grooves are provided on the curved skeleton, the first grooves and the second grooves corresponding to the first grooves are alternately connected; a superconducting cable is wound in the connected first grooves and second grooves; wherein, adjacent first grooves do not contact each other; and adjacent second grooves are tangent.

[0035] In the embodiments of this disclosure, the existing CEE coil structure design has the problem of large volume. This embodiment sets two groove structures in the skeleton, and the curved grooves on the curved skeleton are in close contact, so that the adjacent superconducting cables wound on the curved skeleton through the second groove are tangent, which effectively reduces the volume of one side of the curved skeleton, thereby reducing the overall size of the coil.

[0036] According to embodiments of this disclosure, it further includes: a coil box, wherein a plurality of stacked skeleton unit structures are disposed within the coil box; and an insulating layer disposed on the quench protection layer in each skeleton unit structure.

[0037] In the embodiments of this disclosure, by setting up a coil box, multiple stacked skeleton unit structures are placed and fixed inside the coil box, providing additional mechanical support, enhancing the overall rigidity of the coil, and reducing the risk of deformation.

[0038] Figure 2 A perspective view of a superconducting coil according to an embodiment of the present disclosure is shown schematically.

[0039] Figure 3 A top view of a superconducting coil according to an embodiment of the present disclosure is shown schematically.

[0040] Figure 4 A schematic diagram of the curved segment of a superconducting coil according to an embodiment of the present disclosure is shown.

[0041] Figure 5 A schematic diagram of a straight segment of a superconducting coil according to an embodiment of the present disclosure is shown.

[0042] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, one possible embodiment of this disclosure provides a superconducting coil, including: two stacked skeleton unit structures, each skeleton unit structure including a skeleton, a superconducting cable and a quench protection layer, the superconducting cable having two layers and the quench protection layer having one layer.

[0043] The skeleton is a G10 skeleton with a quadrilateral structure, consisting of alternating straight and curved skeletons. Two straight skeletons form opposite sides, and two curved skeletons form opposite sides. A single turn of the wire is formed by winding it around one of the alternating straight and curved skeletons. Figure 2 Arrow direction. The first layer of superconducting cable is fabricated by winding 33 turns of wire into both straight and curved skeletons. A second layer is then constructed by winding a single wire in and out of the first layer. Simultaneously, a copper wire is wound 33 turns into the second layer to create a quench protection layer. Glass fiber cloth is then laid on top of the quench protection layer to create an insulating layer, completing the fabrication of one skeleton unit structure.

[0044] like Figure 2 The image shown is a 3D view of multiple skeleton unit structures placed in a coil box and the coil box encapsulated.

[0045] like Figure 3 The figure shows a top view of a superconducting coil according to an embodiment of the present disclosure. In the figure, 1, 2, 5, 6, 13, and 14 are intermediate transition skeletons between straight segment skeletons and curved segment skeletons, 3 is the outer coil curved cover plate, 4 is the middle coil curved cover plate, 7 is the cooling pipe assembly located in the straight segment, 8, 9, 11, and 12 are the straight segment cover plates of the outer coil, and 10 is the outer coil box.

[0046] like Figure 5 The diagram shown is a structural diagram of a straight segment of a superconducting coil according to an embodiment of the present disclosure, wherein 15, 16, 17, and 18 are straight segment cover plates of the outer coil, and 19 is a cooling pipe assembly.

[0047] This disclosure also provides a method for manufacturing a superconducting coil for a magnetic spectrometer, comprising: winding a superconducting cable on a first frame; winding copper wires on the superconducting cable to prepare a quench protection layer, thereby completing the winding of the first frame unit structure; setting a second frame on the quench protection layer; winding a superconducting cable on the second frame; winding copper wires on the superconducting cable on the second frame to prepare a quench protection layer, thereby completing the winding of the second frame unit structure; repeating the above operations until the winding of at least two stacked frame unit structures is completed.

[0048] In the embodiments of this disclosure, the winding process is simple, and the wound superconducting coil has good rigidity and is not easily deformed.

[0049] According to an embodiment of this disclosure, winding a superconducting cable on a first frame includes: taking a superconducting cable and winding it on the first frame along alternating first and second grooves according to a preset number of turns and a first preset number of layers, thereby completing the preparation of the superconducting cable on the first frame.

[0050] The process of winding copper wires on a superconducting cable to generate a quench protection layer includes: taking copper wires and winding them on the superconducting cable according to a preset number of turns and a second preset number of layers to generate a quench protection layer.

[0051] In the embodiments of this disclosure, the number of preset turns and preset layers can be selected according to the setting requirements.

[0052] According to an embodiment of this disclosure, before the superconducting cable is wound on the first frame along alternating first and second grooves according to a preset number of turns and a first preset number of layers, and the superconducting cable on the first frame is completed, the method further includes: placing the first frame in a coil box; and in the coil box, winding the superconducting cable on the first frame along alternating first and second grooves according to a preset number of turns and a first preset number of layers.

[0053] In the embodiments of this disclosure, the skeleton is fixed by a coil box before winding begins, to avoid the problem of insufficient rigidity when winding directly on the skeleton.

[0054] According to an embodiment of this disclosure, before setting the second frame on the quench protection layer, the method further includes: laying an insulating material on the quench protection layer to form an insulating layer; and setting the second frame on the insulating layer.

[0055] In the embodiments of this disclosure, by laying glass fiber cloth on the quench protection layer, the number of glass fiber cloth layers and the thickness of the glass fiber cloth can be set as needed.

[0056] According to embodiments of this disclosure, the method further includes: after completing the winding of at least two stacked skeleton unit structures, assembling a cover plate on the insulating layer of the last skeleton unit structure to complete the winding of the superconducting coil.

[0057] According to embodiments of this disclosure, the method further includes: placing the completed superconducting coil in a sealing fixture; placing a stainless steel soft film between the superconducting coil and the sealing fixture, and then casting epoxy resin.

[0058] In embodiments of this disclosure, a stainless steel plate is fabricated and welded between the coil and the tooling as a soft film to reduce the curing space and epoxy usage and improve casting quality.

[0059] According to embodiments of this disclosure, the method further includes: laser cutting the coil box parts under a nitrogen protective atmosphere; and argon arc welding the coil box parts to prepare the coil box.

[0060] In the embodiments of this disclosure, by using laser cutting of coil box parts, the manufacturing and welding accuracy of the coil box is improved compared with traditional machining, while also reducing manufacturing costs.

[0061] Figure 6 The diagram schematically illustrates the coil structure of a superconducting coil in a curved segment according to an embodiment of the present disclosure.

[0062] Figure 7 The diagram schematically illustrates the coil structure of a superconducting coil in a straight segment according to an embodiment of the present disclosure.

[0063] In one possible embodiment of this disclosure, a method for fabricating the above-mentioned superconducting coil is provided, comprising:

[0064] Step 1: Prepare the stainless steel coil box:

[0065] High-precision nitrogen-protected laser cutting is used to prepare coil box parts, with the cutting accuracy controlled within 0.5mm.

[0066] After the coil box arc base plate is pre-bent, the coil box parts are welded together on the coil winding fixture. During the welding, the arc plate is corrected with the fixture machining surface as a reference. After the gap is measured by feeler gauge to be less than 0.5mm, welding is carried out. Argon arc welding is used to control welding deformation.

[0067] Step 2: The skeleton is prepared into a straight skeleton and a curved skeleton through machining.

[0068] Step 3: The superconducting cable is dry-wound and two layers of skeleton are stacked. Each skeleton contains two layers of superconducting cable and one layer of quench protection layer. Each layer of wire has a total of 33 turns and is wound with a single wire winding in and out.

[0069] 1) Before winding, the device should be inspected and cleaned.

[0070] 2) Install the first layer of skeleton in the groove of the coil box, and adjust the height of each skeleton by low temperature epoxy bonding, align the joints and the upper surface of the wire groove, and fix the straight section skeleton with top screws; evenly pad the inner side of the stainless steel coil box upright plate with 0.1mm thick epoxy board and bond it with polyimide to ensure the insulation performance between the superconducting coil and the coil box; place the superconducting cable in the wire laying device and control the wire to be straight and without bending.

[0071] 3) Wind the superconducting cable on the first layer of skeleton, and control the superconducting cable to be inserted into the skeleton from the outside to the inside. When winding, use PTFE nylon rods to press and flatten it so that the superconducting cable is in complete contact with the bottom of the groove. While winding, use pressure blocks to press it from the inside, and pay attention to the insertion force at the corners to prevent damage to the cable insulation.

[0072] 4) During the winding process, the surface of the frame is blown with compressed air and the cleanliness is checked every 5 turns; the tension of the conductor is checked every 5 turns; the insulation of the conductor to ground is checked when the first and 33rd turns of each layer of conductor are wound.

[0073] 5) Repeat steps 3) and 4) to complete the winding of two layers of superconducting cables on the first layer of the skeleton.

[0074] 6) Take copper wire and wind it on the superconducting cable wound in operation 5). Use a winding tool to bend the arc at the rounded corners, press it with PTFE rod while winding, flatten the local high points and press it with pressure plate, and fix it with polyimide tape. This improves the winding efficiency of copper wire and the accuracy at the arc. During the winding process, periodically measure the resistance of copper wire, the insulation of copper wire to ground, and the insulation between copper wire and superconducting wire.

[0075] 7) After the copper wire is wound in operation 6), wrap glass fiber cloth evenly on the outer surface of the copper coil. Place two layers of 0.05mm thick glass fiber cloth and one layer of 0.1mm thick glass fiber cloth on the straight frame, and place three layers of 0.05mm thick glass fiber cloth and two layers of 0.1mm thick glass fiber cloth on the curved frame.

[0076] 8) Install copper pads on the outer surface of the first layer skeleton, cut the copper pads, and cut the glue injection holes.

[0077] 9) Repeat steps 2)-6) to complete the winding of superconducting cables and copper wires on the second layer of the skeleton.

[0078] 10) Wrap glass fiber cloth evenly on the outer surface of the copper wire wound in operation 9). Lay one layer of glass fiber cloth with a thickness of 0.15mm on the straight skeleton and two layers of glass fiber cloth with a thickness of 0.15mm on the curved skeleton.

[0079] 11) Clean the aluminum cover plate, attach a 0.05mm thick layer of polyimide to the bottom inner side of the aluminum cover plate, assemble the coil box cover plate, and complete the winding of the superconducting coil.

[0080] Step 4, Coil Casting:

[0081] 1) Fabricate and weld a 2mm thick stainless steel plate as a soft film between the superconducting coil and the sealing fixture to reduce the curing space and epoxy usage and improve the casting quality; install a glue tube at the corresponding glue injection port. The glue tube specifications are φ10mm×2mm, where φ10mm is the inner diameter and 2mm is the wall thickness; hoist the superconducting coil and soft film as a whole into the vacuum pressure casting tank.

[0082] 3) Epoxy preparation: Low-temperature impregnation resin is used for casting. The epoxy resin and curing agent are placed in the premix tank for preheating and degassing treatment. The preheating temperature is 60°C. After the mixing tank is preheated, the mixture is stirred evenly. The mixing tank is kept at 60°C for 2 hours. During the heat preservation process, the agitator and vacuum pump are turned on at the same time to stir and remove air bubbles. During the degassing process, the air bubble generation in the mixing tank needs to be observed every 10 minutes until no air bubbles are generated.

[0083] 4) After the epoxy preheating and degassing is completed, the casting tank is pre-vacuumed according to the procedure. When the vacuum degree is 5pa, heating is started and heated to 135℃ according to the preset temperature rise curve. The injection valve is opened and epoxy is slowly injected from the injection port. The flow rate of epoxy is controlled by the mixer and material distributor to make the flow rate of epoxy 5kg / min.

[0084] 5) After the epoxy injection is completed, nitrogen gas is introduced into the casting tank, the pressure is adjusted to 0.1 MPa, and the pressure is maintained for 30 minutes.

[0085] 6) Set the curing program according to the preset curing temperature curve of the low-temperature epoxy and carry out curing in the casting tank;

[0086] 7) After the superconducting coil has cured, it is lifted out of the casting tank, air-cooled to room temperature, demolded, the soft film is removed, excess epoxy is removed, the shape of the superconducting coil is trimmed, and the casting of the superconducting coil is completed.

[0087] In the embodiments of this disclosure, the coil box is prepared by laser cutting and argon arc welding, which improves the manufacturing and assembly accuracy of the coil box and reduces manufacturing costs compared to traditional machining. During the superconducting coil casting process, a vacuum pressure casting system is used to ensure that the overall vacuum level of the system is below 5 Pa throughout the casting process. After vacuum casting is completed, nitrogen gas is applied at a positive pressure of 0.1 MPa for 30 minutes to ensure that the coil is thoroughly and compacted, reducing the risk of forming casting cavities.

[0088] like Figure 6 As shown, Figure 4 The diagram shows the coil structure of the curved section. 20 represents a single-layer quench protection layer, 21 represents a two-layer superconducting cable, 22 and 24 are outer coil curve pads, 23 is the outer coil copper pad, and B1 is a screw. Figure 6 In this case, the adjacent wires wound on the curved segment are tangent, which reduces the volume of the coil side due to the limitation of the side dimension.

[0089] like Figure 7 The diagram shows the coil structure for the straight segment. 25 and 27 are the frame components, 26 is the outer coil copper pad, 28 is the cooling pipe fixing clamp, and B2 is a screw. Figure 7 In this design, the coils located on the straight section do not need to contact each other. The wire grooves set on the straight frame can provide support for the wound wires, further improving the rigidity of the coils.

[0090] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this disclosure can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in this disclosure. In particular, the features described in the various embodiments and / or claims of this disclosure can be combined and / or combined in various ways without departing from the spirit and teachings of this disclosure. All such combinations and / or combinations fall within the scope of this disclosure.

[0091] The embodiments of this disclosure have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of this disclosure. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of this disclosure is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of this disclosure, and all such substitutions and modifications should fall within the scope of this disclosure.

Claims

1. A superconducting coil for a magnetic spectrometer, characterized in that, include: Multiple skeleton unit structures are stacked, each skeleton unit structure including a skeleton, a superconducting cable and a quench protection layer stacked sequentially; in two adjacent skeleton unit structures, the quench protection layer of one skeleton unit structure contacts the skeleton in the other skeleton unit structure.

2. The superconducting coil of the magnetic spectrometer according to claim 1, characterized in that, The skeleton includes: alternating straight-line skeletons and curved skeletons; The straight skeleton is provided with a plurality of first grooves, and the curved skeleton is provided with a plurality of second grooves, wherein the first grooves and the second grooves corresponding to the first grooves are alternately connected. The superconducting cable is wound in the connected first and second cable grooves; The adjacent first grooves do not contact each other; the adjacent second grooves are tangent to each other.

3. The superconducting coil for a magnetic spectrometer according to claim 2, characterized in that, Also includes: A coil box, wherein the multiple stacked skeleton unit structures are disposed within the coil box; An insulating layer is disposed on the quench protection layer in each of the skeleton unit structures.

4. A method for manufacturing a superconducting coil for a magnetic spectrometer, characterized in that, include: Wind superconducting cables onto the first frame; A quench protection layer is prepared by winding copper wires on the superconducting cable, thus completing the winding of the first skeleton unit structure. A second frame is provided on the quench protection layer; A superconducting cable is wound around the second skeleton; A quench protection layer is prepared by winding copper wires on the superconducting cable on the second skeleton, thus completing the winding of the second skeleton unit structure. Repeat the above operation until the winding of at least two stacked skeleton unit structures is completed.

5. The method for manufacturing the superconducting coil of a magnetic spectrometer according to claim 4, characterized in that, The process of winding superconducting cables on the first frame includes: The superconducting cable is wound along the alternating first and second grooves on the first skeleton according to the preset number of turns and the first preset number of layers, thus completing the preparation of the superconducting cable on the first skeleton. The process of winding copper wires on a superconducting cable to generate a quench protection layer includes: Copper wires are wound onto the superconducting cable according to the preset number of turns and the second preset number of layers to generate a quench protection layer.

6. The method for manufacturing the superconducting coil of a magnetic spectrometer according to claim 5, characterized in that, Before the superconducting cable is wound on the first frame along alternating first and second slots according to a preset number of turns and a first preset number of layers, completing the fabrication of the superconducting cable on the first frame, the process further includes: The first skeleton is placed in the coil box; In the coil box, the superconducting cable is wound on the first skeleton along the alternating first and second slots according to a preset number of turns and a first preset number of layers.

7. The method for manufacturing the superconducting coil of a magnetic spectrometer according to claim 4, characterized in that, Before setting the second skeleton on the quench protection layer, the following is also included: An insulating material is laid on the quench protection layer to form an insulating layer; A second skeleton is provided on the insulating layer.

8. The method for manufacturing the superconducting coil of a magnetic spectrometer according to claim 7, characterized in that, Also includes: After the winding of at least two stacked skeleton unit structures is completed, a cover plate is assembled on the insulating layer of the last skeleton unit structure to complete the winding of the superconducting coil.

9. The method for manufacturing the superconducting coil of a magnetic spectrometer according to claim 8, characterized in that, Also includes: The completed superconducting coil is placed in a sealed fixture; A stainless steel diaphragm is placed between the superconducting coil and the sealing fixture for epoxy resin casting.

10. The method for manufacturing the superconducting coil of a magnetic spectrometer according to claim 8, characterized in that, Also includes: Coil box parts are cut using a laser under a nitrogen protective atmosphere. The coil box parts are manufactured by argon arc welding.

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