CN208262072U - A kind of welder of high-temperature superconductor band connector - Google Patents
A kind of welder of high-temperature superconductor band connector Download PDFInfo
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- CN208262072U CN208262072U CN201820754169.XU CN201820754169U CN208262072U CN 208262072 U CN208262072 U CN 208262072U CN 201820754169 U CN201820754169 U CN 201820754169U CN 208262072 U CN208262072 U CN 208262072U
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- upper cover
- cover plate
- pedestal
- temperature superconductor
- welder
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Abstract
A kind of welder of high-temperature superconductor band connector, includes pedestal, and pedestal is equipped with upper cover plate；Upper head plate is equipped with above upper cover plate；The four corners of pedestal, upper cover plate and upper head plate are respectively provided with a studdle；It is equipped with an adjusting screw rod in the geometric center of upper cover plate, adjusting screw rod is externally provided with a holddown spring；It adjusts screw and passes through the upper end that upper head plate withstands on adjusting screw rod from up to down；Heating tube is equipped in inner hole at pedestal and upper cover plate center；The assembling of welder；Upper cover plate is placed on pedestal by the welding of band connector with that will be placed in the groove of base upper surface after 3 circle of high-temperature superconductor band weld winding, by holddown spring, adjusts screw to superconducting tape application pressure；Heating and temperature control is carried out by heating tube；Structure is simple, easily fabricated, and suitable for the welding of high-temperature superconductor band, welding method is simple and easy, at low cost.
Description
Technical field
The invention belongs to superconducting magnet technical fields, are related to a kind of welder of high-temperature superconductor band connector.
Background technique
In April, 1984, Muller and De-Nol hereby have found LaBaCuO high Tc oxide superconductor (Tc=34K), thus high temperature
Superconduction epoch, scientist have found YBaCuO, BiSrCaCuO again successively、The functionization high temperature superconducting materia such as MgB2.Closely
Nian Lai, with using YBaCuO as the Y system of representative and Bi2Sr2CaCu2O3For the further hair of the Bi system high-temperature superconducting material of representative
Exhibition, has been done step-by-step commercially producing for Bi2223/Ag and YBCO superconducting tape, application field is more and more extensive.
The main carriers of high-temperature superconductor band are superconducting magnet, the requirement with the development of high-temperature superconducting magnet, to band
Also higher and higher, existing technique can prepare hundred meters and arrive the high-temperature superconductor band of km grade, however but much be unable to satisfy reality
Requirement, meanwhile, the promotion of band length is higher to equipment, technology and cost requirement, by the limitation high temperature of high degree
The commercial applications of superconducting tape.Therefore need to study a kind of method of high-temperature superconductor band welding, effectively extension high-temperature superconductor
The length of band.The method of traditional extension high-temperature superconductor band is that band is connected by welding, if two superconductive tapes
It being welded together, just will form interface, the presence of crystal boundary will lead to superconductivity decline, high performance superconducting joint is made,
The crystal phase structure of the crystal phase structure and parent band that must make joint is close.
For Bi2223/Ag and YBCO high-temperature superconductor band, the development of superconducting joint technology is still to be developed, similar
Technology first the outer layer jacket of band connecting portion is eroded with corrosive agent, to expose core filaments material part take
It connects processing and applies the pressure of 400~4000MPa not etc., then carry out prolonged the high temperature anneal, obtain Bi2223 crystal grain
To recrystallize so that crack healing.However since the operational process of craft is complicated, required precision is high, high temperature high pressure process is to base material
The factors such as the influence of performance constrain development of the technique on the long welding of high-temperature superconductor to a certain extent.
In Bi2223/Ag long band preparation process, band weld uses soldering processes mostly, high-temperature superconducting magnet and
In the process of running, theoretically almost without thermal losses, Joule heat caused by band connection resistance becomes main to coil at this time
Heat source is directly related to the operating condition of magnet.Research finds that welding manner, temperature, solder, welded lap length etc. can be right
Connection resistance generates certain influence, obtain it is a kind of it is easy to operate, be easily achieved, the high-temperature superconductor band Welder of strong applicability
It fills and obtains its street corner welding technique and realize the technique side for reducing connection resistance, reducing refrigeration expense, reducing magnet quenching risk
Method is very necessary.
Summary of the invention
In order to overcome the problems of the prior art, the present invention provides a kind of welder of high-temperature superconductor band connector, welding
Apparatus structure is simple, easily fabricated, at low cost suitable for the welding of high-temperature superconductor band.
To achieve the above object, of the invention the technical solution adopted is that:
A kind of welder of high-temperature superconductor band connector, includes pedestal, and pedestal is equipped with upper cover plate；Above upper cover plate
Equipped with upper head plate；The four corners of pedestal, upper cover plate and upper head plate are respectively provided with a studdle；It is equipped in the geometric center of upper cover plate
One adjusting screw rod, adjusting screw rod are externally provided with a holddown spring；Adjusting screw passes through upper head plate from up to down and withstands on adjusting screw rod
Upper end；Heating tube is equipped in inner hole at pedestal and upper cover plate center.
The pedestal, upper cover plate are made of aluminium alloy；The upper surface of pedestal is equipped with the groove of width 5mm, depth 0.5mm,
For installing high-temperature superconductor band.
Four pedestal, upper cover plate and upper head plate edges are equipped with the threaded hole that a diameter is 3.5mm, described
The diameter of studdle is 3.5mm, and for firm banking and upper cover plate and upper head plate, holddown spring and adjusting screw are mounted on
On adjusting screw rod right above cover board, for adjusting the pretightning force between upper cover plate and pedestal.
The pedestal, upper cover plate, upper head plate are made of non magnetic austenitic stainless steel.
The invention has the advantages that high-temperature superconductor may be implemented by using welder of the present invention and welding method
The welding of the connector of band, the connection resistance test result of acquisition is 10-8To 10-9Between Ω, it can be reached far below traditional soldering
10 arrived-5Ω effectively reduces thermal loss and refrigeration expense in high-temperature superconducting magnet operational process, improves the steady of system
It is qualitative, magnet quenching risk is finally significantly reduced, while providing the foundation for the large-scale application of the long band of high-temperature superconductor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of welder of the present invention.
Fig. 2 is the photo of superconducting tape of the present invention.
Fig. 3 is the photo of high-temperature superconductor band connector postwelding of the present invention.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of welder of high-temperature superconductor band connector, includes pedestal (1), which is characterized in that bottom
Seat 1 is equipped with upper cover plate 2；Upper head plate 3 is equipped with above upper cover plate 2；The four corners of pedestal 1, upper cover plate 2 and upper head plate 3 are respectively provided with
One studdle 4；It is equipped with an adjusting screw rod 5 in the geometric center of upper cover plate 2, adjusting screw rod 5 is externally provided with a holddown spring 6；It adjusts
Section screw 7 passes through the upper end that upper head plate 3 withstands on adjusting screw rod 5 from up to down；It is set in pedestal 1 and the inner hole at 2 center of upper cover plate
There is heating tube 8.
The pedestal 1, upper cover plate 2 are made by aluminium alloy, and there is wide 5mm in 1 upper surface of pedestal, and deep 0.5mm's is recessed
Slot, for installing high-temperature superconductor band.
3 four pedestal 1, upper cover plate 2 and upper head plate edges are equipped with the threaded hole that a diameter is 3.5mm, institute
The diameter for the studdle 4 stated is 3.5mm, for firm banking 1 and upper cover plate 2 and upper head plate 3, holddown spring 6 and adjusting spiral shell
Nail 7 is mounted on the adjusting screw rod 5 right above upper cover plate 2, for adjusting the pretightning force between upper cover plate 2 and pedestal 1.
The pedestal 1, upper cover plate 2, upper head plate 3 are made of non magnetic austenitic stainless steel.
Working principle is:
1) assembling of welder
Firstly, pedestal 1 is fixed on experiment porch and studdle 4 is installed on pedestal 1；Secondly, by upper cover plate 2
It is mounted on the top of pedestal 1 by studdle 4, while successively being pacified holddown spring 6, adjusting screw 7 by adjusting screw rod 5
Mounted in upper cover plate 2；Upper plate is finally installed and in inner hole that heating tube 8 is placed at pedestal 1 and 2 center of upper cover plate.
As shown in Fig. 2, high-temperature superconductor band 9 needs to do the following processing before welding, after front end sharp corner overlap joint, thickness is used
The Sn63Pb band of 0.2mm encloses high-temperature superconductor band weld winding 3, lap of splice 2cm.
2) welding of band connector
As shown in figure 3, by Sn63Band after Pb package is placed in the groove of 1 upper surface of pedestal, and upper cover plate 2 is placed
On pedestal 1, while passing through holddown spring 6, adjusting the pressure that screw 7 applies 25N to superconducting tape；It will by temperature controller
The heating temperature of heating tube is set in 220 DEG C, 5 DEG C/s of heating rate, when temperature reaches 220 DEG C, starts to cool down after keeping the temperature 3min,
5 DEG C/s of rate of temperature fall, until unit temp is down to room temperature.
This is designed as high-temperature superconductor band weld, and the assembling to tooling is completed by above step is completed at the same time
The welding of high-temperature superconductor band connector.
Claims (4)
1. a kind of welder of high-temperature superconductor band connector includes pedestal (1), which is characterized in that pedestal (1) is equipped with upper
Cover board (2)；Upper head plate (3) are equipped with above upper cover plate (2)；The four corners of pedestal (1), upper cover plate (2) and upper head plate (3) are respectively provided with
One studdle (4)；An adjusting screw rod (5) are equipped in the geometric center of upper cover plate (2), adjusting screw rod (5) is externally provided with a compression
Spring (6)；It adjusts screw (7) and passes through the upper end that upper head plate (3) withstand on adjusting screw rod (5) from up to down；Pedestal (1) and upper cover plate
(2) heating tube (8) are equipped in the inner hole at center.
2. a kind of welder of high-temperature superconductor band connector according to claim 1, which is characterized in that the pedestal
(1), upper cover plate (2) is made of aluminium alloy；The upper surface of pedestal (1) is equipped with the groove of width 5mm, depth 0.5mm, for installing height
Temperature superconductive band.
3. a kind of welder of high-temperature superconductor band connector according to claim 1, which is characterized in that the pedestal
(1), (3) four edges of upper cover plate (2) and upper head plate are equipped with the threaded hole that a diameter is 3.5mm, the studdle
(4) diameter is 3.5mm, for firm banking (1) and upper cover plate (2) and upper head plate (3), holddown spring (6) and adjusting screw
(7) it is mounted on the adjusting screw rod (5) right above upper cover plate (2), for adjusting the pretightning force between upper cover plate (2) and pedestal (1).
4. a kind of welder of high-temperature superconductor band connector according to claim 1, which is characterized in that the pedestal
(1), upper cover plate (2), upper head plate (3) are made of non magnetic austenitic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754169.XU CN208262072U (en) | 2018-05-21 | 2018-05-21 | A kind of welder of high-temperature superconductor band connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754169.XU CN208262072U (en) | 2018-05-21 | 2018-05-21 | A kind of welder of high-temperature superconductor band connector |
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| CN208262072U true CN208262072U (en) | 2018-12-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453361A (en) * | 2018-05-21 | 2018-08-28 | 西安聚能超导磁体科技有限公司 | A kind of welder and its welding method of high-temperature superconductor band connector |
| CN111872539A (en) * | 2020-08-11 | 2020-11-03 | 上海上创超导科技有限公司 | Method for manufacturing high-temperature superconducting tape inner sealing joint |
| CN111933308A (en) * | 2020-08-14 | 2020-11-13 | 西南交通大学 | High-temperature superconducting strip series-connection joint for magnetic confinement fusion magnet |
-
2018
- 2018-05-21 CN CN201820754169.XU patent/CN208262072U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453361A (en) * | 2018-05-21 | 2018-08-28 | 西安聚能超导磁体科技有限公司 | A kind of welder and its welding method of high-temperature superconductor band connector |
| CN111872539A (en) * | 2020-08-11 | 2020-11-03 | 上海上创超导科技有限公司 | Method for manufacturing high-temperature superconducting tape inner sealing joint |
| CN111872539B (en) * | 2020-08-11 | 2022-02-11 | 上海上创超导科技有限公司 | Method for manufacturing high-temperature superconducting tape inner sealing joint |
| CN111933308A (en) * | 2020-08-14 | 2020-11-13 | 西南交通大学 | High-temperature superconducting strip series-connection joint for magnetic confinement fusion magnet |
| CN111933308B (en) * | 2020-08-14 | 2022-09-09 | 西南交通大学 | High-temperature superconducting strip series-connection joint for magnetic confinement fusion magnet |
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