CN114156014A - Multilayer YBCO superconducting tape preparation device and preparation method - Google Patents
Multilayer YBCO superconducting tape preparation device and preparation method Download PDFInfo
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- CN114156014A CN114156014A CN202111629228.3A CN202111629228A CN114156014A CN 114156014 A CN114156014 A CN 114156014A CN 202111629228 A CN202111629228 A CN 202111629228A CN 114156014 A CN114156014 A CN 114156014A
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- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims description 22
- 229910000856 hastalloy Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- -1 603 Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0036—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
本发明公开一种多层YBCO超导带材制备装置及制备方法，涉及超导带材制备领域，本发明提供的多层YBCO超导带材制备装置及制备方法均将两个超导带材缠绕于柱体上，并通过将两个超导带材旋紧于柱体上，实现两个超导带体之间预紧力的施加。如此设置，该多层YBCO超导带材制备装置及制备方法能够制备的带材长度更长，且超导带体长度无需与装置长度一致，灵活性大大提高。
The invention discloses a multi-layer YBCO superconducting tape preparation device and a preparation method, and relates to the field of superconducting tape preparation. The multi-layer YBCO superconducting tape preparation device and preparation method provided by the invention both combine two superconducting tapes. It is wound on the cylinder, and by screwing the two superconducting strips on the cylinder, the application of the pre-tightening force between the two superconducting strips is realized. With this arrangement, the multi-layer YBCO superconducting tape preparation device and the preparation method can prepare longer strip lengths, and the length of the superconducting strip body does not need to be the same as the length of the device, and the flexibility is greatly improved.
Description
Technical Field
The invention relates to the field of superconducting tape preparation, in particular to a device and a method for preparing a multilayer YBCO superconducting tape.
Background
Over the past decades, YBCO (YBa)2Cu3O7-δ) The tape as the second generation high temperature superconducting tape has the advantages of rapid development and mature preparation process because the performance under high field is obviously superior to that of other superconductors. In companies at home and abroad, the critical current of the YBCO strip is also continuously improved, and the current scheme for improving the critical current of the YBCO strip comprises the following steps: by at basebandAnd the multi-layer YBCO film is superposed on the superconducting tape, so that the current carrying capacity of the superconducting tape can be obviously enhanced. In the technique of laminating multiple layers of YBCO films on a base tape, there is a very important process where two superconducting tapes need to be heated close together in a face-to-face manner, which requires a pre-load to be applied.
The prior art extrudes a superconducting strip to apply pretightening force through a linear tool, and has the following problems: the linear type tool can only prepare short samples (about ten centimeters), if the length of a sample is continuously increased, the length of the tool needs to be changed along with the sample, and in order to ensure that a workpiece is not deformed, the length of the prepared superconducting wire needs to be consistent with the length of the tool, so that the linear type tool is lack of flexibility. Therefore, how to provide a device and a method for preparing a multi-layer YBCO superconducting tape, which can prepare a long sample and have good flexibility, is a problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a device and a method for preparing a multilayer YBCO superconducting tape, which can prepare long samples and have good flexibility.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a device for preparing a multilayer YBCO superconducting tape, which comprises: the bolt comprises a cylinder body and two thread sections which are coaxially arranged, and the two thread sections are respectively arranged at two ends of the cylinder body; the nut assembly comprises two precession nuts, the two precession nuts are respectively in threaded connection with the two threaded sections, and each precession nut is provided with a first clamping block; and the connecting assembly comprises two second clamping blocks, and the first clamping blocks correspond to the second clamping blocks in a one-to-one manner and are detachably connected.
Preferably, the multilayer YBCO superconducting tape preparation device further comprises a high-temperature-resistant pre-tightening tape, wherein the superconducting base tape, the superconducting tape and the high-temperature-resistant pre-tightening tape are aligned and then wound on the column body, the high-temperature-resistant pre-tightening tape is arranged on the outermost side, and two ends of the high-temperature-resistant pre-tightening tape are clamped between the first clamping block and the second clamping block.
Preferably, the cylinder includes main part and two fixed blocks, the both ends of main part all are provided with the recess, two the fixed block sets up respectively in two the recess, each the fixed block all with the main part can be dismantled and be connected.
Preferably, the fixing block is the same as the groove in shape.
Preferably, the high-temperature-resistant pretensioning belt has a smooth surface.
Preferably, the high-temperature-resistant pre-tightening belt is a hastelloy substrate or a stainless steel belt.
Preferably, one of the first clamping block and the second clamping block is provided with a clamping groove matched with the other clamping block, and the other clamping block is embedded into the clamping groove.
Preferably, the cylinder surface is smooth.
The invention provides a preparation method of a multilayer YBCO superconducting tape, which comprises the following steps: aligning a superconducting base band and a superconducting strip to form a superconducting strip body, and winding the superconducting strip body on a cylinder; and step two, screwing the superconducting tape body on the cylinder, and extruding the superconducting base tape and the superconducting tape mutually in the screwing process to finish pre-tightening.
Preferably, the preparation method of the multilayer YBCO superconducting tape comprises the following steps: in the first step, a high-temperature-resistant pre-tightening belt is arranged, the high-temperature-resistant pre-tightening belt is aligned with the superconducting belt body and then wound on a cylinder, and the high-temperature-resistant pre-tightening belt is wound on the outermost side; and in the second step, two ends of the high-temperature-resistant pre-tightening belt are stretched so that the superconducting belt body is screwed on the cylinder.
Compared with the prior art, the invention has the following technical effects:
the invention provides a device for preparing a multilayer YBCO superconducting tape, which comprises: the bolt comprises a cylinder body and two thread sections which are coaxially arranged, and the two thread sections are respectively arranged at two ends of the cylinder body; the nut assembly comprises two precession nuts, the two precession nuts are respectively in threaded connection with the two threaded sections, and each precession nut is provided with a first clamping block; the connecting assembly comprises two second clamping blocks, and the two first clamping blocks correspond to the two second clamping blocks one to one and are detachably connected.
The preparation method of the multilayer YBCO superconducting tape provided by the invention comprises the following steps: aligning a superconducting base band and a superconducting strip to form a superconducting strip body, and winding the superconducting strip body on a cylinder; and step two, screwing the superconducting tape body on the cylinder, and extruding the superconducting base tape and the superconducting tape mutually in the screwing process to finish pre-tightening.
According to the preparation device and the preparation method of the multilayer YBCO superconducting tape, the two superconducting tape bodies are wound on the cylinder, and the pre-tightening force is applied between the two superconducting tape bodies by screwing the two superconducting tape bodies on the cylinder. By the arrangement, the length of the tape prepared by the device and the method for preparing the multilayer YBCO superconducting tape is longer, the length of the superconducting tape does not need to be consistent with that of the device, and the flexibility is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a multi-layer YBCO superconducting tape manufacturing apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a bolt of a multilayer YBCO superconducting tape manufacturing apparatus provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a precession nut of a multi-layer YBCO superconducting tape manufacturing apparatus provided in an embodiment of the present invention;
FIG. 4 is a schematic structural view of a second clamping plate of the apparatus for manufacturing a multi-layer YBCO superconducting tape provided in the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fixing block of a multi-layer YBCO superconducting tape manufacturing apparatus provided in an embodiment of the present invention;
FIG. 6 is a diagram of a conventional method for manufacturing a multilayer YBCO superconducting tape;
FIG. 7 is a voltage-current graph of the superconducting tape.
Description of reference numerals: 100. a multilayer YBCO superconducting tape preparation device; 1. a cylinder; 101. a main body; 102. a fixed block; 103. a groove; 2. a threaded segment; 3. a precession nut; 4. a first clamping block; 5. a second clamp block; 501. a card slot; 6. a superconducting tape; 601. a silver layer; 602. YBCO superconducting layer, 603, buffer layer; 604. a hastelloy substrate; 7. a superconducting tape body; 8. multilayer YBCO superconducting tape.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a device and a method for preparing a multi-layer YBCO superconducting tape, which can prepare long samples and have good flexibility.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Referring to fig. 1 to 4, the present embodiment provides an apparatus 100 for manufacturing a multi-layer YBCO superconducting tape, including: the bolt comprises a cylinder 1 and two thread sections 2 which are coaxially arranged, wherein the two thread sections 2 are respectively arranged at two ends of the cylinder 1; the nut assembly comprises two precession nuts 3, the two precession nuts 3 are respectively in threaded connection with the two threaded sections 2, and each precession nut 3 is provided with a first clamping block 4; the connecting assembly comprises two second clamping blocks 5, and the two first clamping blocks 4 are in one-to-one correspondence with the two second clamping blocks 5 and are detachably connected. The length of the tape which can be prepared by the multilayer YBCO superconducting tape preparation device 100 is longer, the length of the superconducting tape body 7 does not need to be consistent with the length of the device, and the flexibility is good.
In a specific use process, the superconducting base band and the superconducting tape 6 are aligned to form a superconducting tape body 7, the superconducting tape body 7 is wound on the column body 1, two ends of the superconducting tape body 7 respectively correspond to the first clamping block 4 and the second clamping block 5, and two ends of the superconducting tape body 7 are respectively clamped between the corresponding first clamping block 4 and the corresponding second clamping block 5. After clamping is completed, the two precession nuts 3 are rotated, the superconducting tape body 7 is screwed on the cylinder 1 along with the rotation of the precession nuts 3, the screwing is tighter, the superconducting base tape and the superconducting tape 6 complete pre-tightening in the screwing process of the superconducting tape body 7, and the pre-tightening force is related to the screwing degree of the superconducting tape body 7.
It should be noted that the superconducting baseband and the superconducting tape 6 have the same structure, or a multilayer YBCO superconducting tape 8 formed by overlapping already-completed YBCO thin films is selected as the superconducting baseband to be overlapped with a new superconducting tape 6 again.
In this embodiment, in order to improve the clamping effect, one of the first clamping block 4 and the second clamping block 5 is provided with a clamping groove 501 matched with the other, and the other is embedded in the clamping groove 501. In this embodiment, as shown in fig. 4, a card slot 501 is disposed on the second clamping block 5.
In this embodiment, the first clamping block 4 and the second clamping block 5 are connected by a first screw.
In this embodiment, the surface of the column body 1 is smooth.
In this embodiment, the nut component further includes two lock nuts, the two lock nuts are respectively in threaded connection with the two thread sections 2, the two lock nuts are in one-to-one correspondence with the two precession nuts 3, and each lock nut is respectively used for locking the corresponding precession nut 3.
Example two
The apparatus 100 for manufacturing a multi-layer YBCO superconducting tape provided in this embodiment includes some or all of the features of the first embodiment, and the difference is that the apparatus 100 for manufacturing a multi-layer YBCO superconducting tape provided in this embodiment further includes a high temperature resistant pre-tensioned tape, the superconducting base tape, the superconducting tape 6, and the high temperature resistant pre-tensioned tape are aligned and then wound on the column 1, wherein the superconducting base tape and the superconducting tape 6 are aligned face to face (the three are wound simultaneously, and the winding process is not overlapped), the high temperature resistant pre-tensioned tape is disposed on the outermost side (one of the superconducting base tape or the superconducting tape 6 is always in contact with the surface of the column 1), and both ends of the high temperature resistant pre-tensioned tape are clamped between the first clamping block 4 and the second clamping block 5.
The widths and the lengths of the superconducting base band and the superconducting tape 6 are the same, the two ends of the high-temperature-resistant pre-tightening band are longer than the superconducting base band and the superconducting tape 6, the width of the high-temperature-resistant pre-tightening band is equal to the widths of the superconducting base band and the superconducting tape 6, in the specific use process, the parts, which are longer than the superconducting base band and the superconducting tape 6, of the two ends of the high-temperature-resistant pre-tightening band are clamped between the first clamping block 4 and the second clamping block 5, and it needs to be noted that the parts, which are longer than the superconducting base band and the superconducting tape 6, of the two ends of the high-temperature-resistant pre-tightening band are respectively clamped between the first clamping block 4 and the second clamping block 5 which are different. The superconducting base band and the superconducting strip 6 are pre-tightened by the high-temperature resistant pre-tightening band, so that the pre-tightening effect of the superconducting base band and the superconducting strip 6 is better.
In this embodiment, the surface of the high temperature resistant pre-tensioned belt is smooth.
In this embodiment, the refractory pre-tensioned belt is a hastelloy substrate 604 or a stainless steel belt. It should be noted that the high temperature resistant pre-tightening band is not limited to the hastelloy substrate 604 or the stainless steel band, and the hastelloy substrate 604 and the stainless steel band are only examples.
EXAMPLE III
The device 100 for preparing a multi-layer YBCO superconducting tape provided by this embodiment includes some or all of the features of the second embodiment, and is different from the first embodiment in that, as shown in fig. 2 and 5, the column 1 includes a main body 101 and two fixing blocks 102, grooves 103 are respectively disposed at two ends of the main body 101, the two fixing blocks 102 are respectively disposed in the two grooves 103, and each fixing block 102 is detachably connected to the main body 101.
In the specific use process, the parts of the two ends of the high-temperature resistant pre-tightening belt, which are longer than the superconducting base belt and the superconducting tape 6, are clamped between the first clamping block 4 and the second clamping block 5, the two ends of the superconducting belt body 7 respectively correspond to one groove 103 and one fixing block 102, and the two ends of the superconducting belt body 7 are respectively clamped between the corresponding grooves 103 and the corresponding fixing blocks 102.
In the present embodiment, the fixing block 102 and the groove 103 have the same shape.
In this embodiment, the fixing block 102 and the groove 103 are connected by screws.
The principle of the device 100 for preparing the multilayer YBCO superconducting tape provided in the first to third embodiments is as follows:
the precession nut 3 is used for rotating precession on the bolt, the rotating force is converted into the strip pulling force, and further converted into the pressure on the superconducting strip 6, and the pressure for stripping the superconducting strip 6 is achieved.
Example four
The embodiment provides a preparation method of a multilayer YBCO superconducting tape 8, which comprises the following steps:
aligning a superconducting base band and a superconducting tape 6 to form a superconducting tape body 7, and winding the superconducting tape body 7 on the column body 1;
and step two, screwing the superconducting tape body 7 on the cylinder 1, and extruding the two superconducting tapes 6 mutually in the screwing process to finish pre-tightening.
In this embodiment, the method for preparing the multilayer YBCO superconducting tape 8 includes the following steps:
in the first step, a high-temperature-resistant pre-tightening belt is arranged, the high-temperature-resistant pre-tightening belt is aligned with the superconducting belt body 7 and then wound on the column body 1, and the high-temperature-resistant pre-tightening belt is wound on the outermost side;
in the second step, the two ends of the high temperature resistant pre-tightening belt are stretched to enable the superconducting belt body 7 to be screwed on the column body 1.
In this embodiment, the method for preparing the multilayer YBCO superconducting tape 8 further includes the following steps:
and step three, after the pre-tightening is completed, the superconducting layer of the superconducting tape 6 can be separated from the buffer layer 603 without taking down the superconducting tape body 7, and putting the column 1, the pre-tightened superconducting tape body 7 and the high-temperature-resistant pre-tightening tape together in a high-temperature furnace for heating, so that the superconducting tape 6 with the plurality of YBCO superconducting layers 602 is prepared.
As shown in fig. 6, the conventional superconducting tape 6 includes a silver layer 601, a YBCO superconducting layer 602, a buffer layer 603, and a hastelloy substrate 604, which are sequentially disposed from top to bottom, and when the conventional multilayer YBCO superconducting tape 8 is manufactured, two superconducting tapes 6 are aligned, and then a certain pre-tightening force (determined according to actual requirements) is applied to extrude the two superconducting tapes 6, so that the two superconducting tapes 6 are abutted together, and then the two superconducting tapes 6 abutted together are placed in a high temperature furnace to be heated, and after the heating is completed, the cooling is performed for a period of time, so that the YBCO superconducting layer 602 and the buffer layer 603 can be separated (the bonding force between the YBCO superconducting layer 602 and the buffer layer 603 is weaker than that between the buffer layer 603 and the hastelloy substrate 604), and the multilayer YBCO superconducting tape 8 can be formed after the buffer layer 603 and the hastelloy substrate 604 of the superconducting tape 6 are peeled. The formed multilayer YBCO superconducting tape 8 can be used as a superconducting base band to be superposed with a new superconducting tape 6 again.
The invention will be further described with reference to the experiment, in which the selected multilayer YBCO superconducting tape 8 is formed by stacking two superconducting tapes 6 separated from the buffer layer 603 and the hastelloy substrate 604.
Experimental procedures and results:
after the multi-layer YBCO superconducting tape 8 is subjected to silver plating and annealing, the current carrying capacity of the multi-layer YBCO superconducting tape is tested, and the known critical current of the single-layer YBCO superconducting tape at 77K (liquid nitrogen temperature zone) is about 130A (4mm width). The experiment proves that the critical current of the multilayer YBCO superconducting tape 8 is about 210A (4mm wide), and the performance of the tape is obviously improved.
The experimental principle is as follows:
in the critical current test of the multilayer YBCO superconducting tape 8, a four-lead method is adopted to measure a voltage-current curve of the superconducting tape, as shown in FIG. 7, because the superconducting tape is in a superconducting state, a normal voltage-current curve is a straight line, and the slope represents the resistance of the multilayer YBCO superconducting tape 8, when the critical current of the multilayer YBCO superconducting tape 8 is exceeded, the phenomenon of quench occurs, namely the voltage-current slope is obviously increased, and the current value at the moment is the critical current of the multilayer YBCO superconducting tape 8 under the self-field. YBCO belongs to a high-temperature superconductor and can reach a superconducting state at the temperature of liquid nitrogen (77K), so that the experiment is also carried out under a 77K self-field.
And (3) analyzing an experimental result: the voltage-current curve of the superconducting tape shows obvious slope increase, which shows that the critical current value of the multilayer YBCO superconducting tape 8 is reached at the moment, and the analysis of the voltage-current shows that the critical current of the multilayer YBCO superconducting tape 8 is more than 210A, so that the performance of the tape is obviously improved. The invention successfully prepares the multilayer YBCO superconducting tape 8 through experimental verification.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A device for preparing a multilayer YBCO superconducting tape is characterized by comprising:
the bolt comprises a cylinder body and two thread sections which are coaxially arranged, and the two thread sections are respectively arranged at two ends of the cylinder body;
the nut assembly comprises two precession nuts, the two precession nuts are respectively in threaded connection with the two threaded sections, and each precession nut is provided with a first clamping block;
and the connecting assembly comprises two second clamping blocks, and the first clamping blocks correspond to the second clamping blocks in a one-to-one manner and are detachably connected.
2. The apparatus of claim 1, further comprising a high temperature pre-tensioned tape, wherein the superconducting base tape, the superconducting tape and the high temperature pre-tensioned tape are aligned and wound on the column, the high temperature pre-tensioned tape is disposed on the outermost side, and both ends of the high temperature pre-tensioned tape are clamped between the first clamping block and the second clamping block.
3. The apparatus of claim 2 wherein said column comprises a main body and two fixed blocks, said main body having grooves at both ends, said two fixed blocks being disposed in said two grooves, respectively, each of said fixed blocks being detachably connected to said main body.
4. The apparatus of claim 3 wherein said anchor block is of the same shape as said grooves.
5. The apparatus of claim 2 wherein said pre-tensioned refractory tape has a smooth surface.
6. The apparatus of claim 2 wherein said refractory pre-tensioned belt is a hastelloy substrate or a stainless steel belt.
7. The apparatus of claim 1 wherein one of said first block and said second block is provided with a slot adapted to the other, and the other is inserted into said slot.
8. The apparatus of claim 1 wherein said cylinder has a smooth surface.
9. A preparation method of a multilayer YBCO superconducting tape is characterized by comprising the following steps:
aligning a superconducting base band and a superconducting strip to form a superconducting strip body, and winding the superconducting strip body on a cylinder;
and step two, screwing the superconducting tape body on the cylinder, and extruding the superconducting base tape and the superconducting tape mutually in the screwing process to finish pre-tightening.
10. A method for the production of a superconducting tape of multilayer YBCO according to claim 9, characterized in that it comprises the following steps:
in the first step, a high-temperature-resistant pre-tightening belt is arranged, the high-temperature-resistant pre-tightening belt is aligned with the superconducting belt body and then wound on a cylinder, and the high-temperature-resistant pre-tightening belt is wound on the outermost side; and in the second step, two ends of the high-temperature-resistant pre-tightening belt are stretched so that the superconducting belt body is screwed on the cylinder.
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| CN209993399U (en) * | 2019-06-01 | 2020-01-24 | 承德泓泰鑫科技电子有限公司 | Twisted wire twisting machine for wire harness processing |
| CN216772919U (en) * | 2021-12-28 | 2022-06-17 | 中国科学院电工研究所 | Multilayer YBCO superconducting tape preparation device |
| CN116646170A (en) * | 2023-06-28 | 2023-08-25 | 中国科学院电工研究所 | Winding method of superconducting magnet |
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