CN109817428A - A kind of current feed and welding procedure - Google Patents
A kind of current feed and welding procedure Download PDFInfo
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- CN109817428A CN109817428A CN201910135197.2A CN201910135197A CN109817428A CN 109817428 A CN109817428 A CN 109817428A CN 201910135197 A CN201910135197 A CN 201910135197A CN 109817428 A CN109817428 A CN 109817428A
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- welding
- current feed
- fixed column
- lead
- groove
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- 238000003466 welding Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 17
- 229910000679 solder Inorganic materials 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005476 soldering Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002887 superconductor Substances 0.000 description 3
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BTGZYWWSOPEHMM-UHFFFAOYSA-N [O].[Cu].[Y].[Ba] Chemical compound [O].[Cu].[Y].[Ba] BTGZYWWSOPEHMM-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The invention discloses a kind of current feed, including lead and fixed column, lead includes fixing end and welding ends, and fixing end is connected with fixed column, and welding ends is provided with welding groove, and superconducting tape is welded in welding groove.The invention also discloses a kind of welding procedures using above-mentioned current feed.Current down-lead structure of the invention is simple, ingenious in design, and more superconducting tapes or superconduction winding are connected in parallel can a welding fabrication, welding efficiency is high, and welding procedure is simple, greatly reduces the workload of welding, the labor intensity of worker is reduced, while also saving welding cost.
Description
Technical field
The present invention relates to a kind of current feed more particularly to a kind of current feed and welding procedures.
Background technique
All the time, superconductor technology is considered as the new and high technology for 21 century having strategic importance, and application has penetrated into
The various aspects such as the energy, traffic, scientific research, medical treatment, national defence.The development of superconductor technology, it is super after low-temperature superconducting, generation high temperature
It leads, two generation high-temperature superconductors, also constantly there is the appearance of various other new superconduction materials at present.
Take YBCO (that is: yttrium barium copper oxide) as two generation high temperature superconducting materias of representative, has higher critical electricity in liquid nitrogen temperature
Current density and superior magnetic field performance；It uses stainless steel band or alloy material as base band, super compared to generation high temperature
Material is led, the mechanical performance of two generation high temperature superconducting materias is greatly improved.Meanwhile two generation superconducting tape because of raw material
Cheaply, substantially not by noble metal price, therefore there is very big implicit costs advantage.
Current YBCO band has been widely used for developing current limiter, transformer, cable, motor, energy storage, magnet, induction
Heating etc..In these application scenarios, it is often necessary to be connected in parallel more superconducting tapes or excessively a superconducting coil, to obtain more
Big electric current and higher capacity.But the welding in parallel of more superconducting tapes in parallel and multiple superconducting coils is one extremely complex
Work, not only speed of welding is slow and heavy workload.
Summary of the invention
The present invention provides a kind of current feed and welding procedures, have a welding fabrication, the high effect of welding efficiency.
Specific technical solution is as follows:
A kind of current feed includes lead and fixed column, and lead includes fixing end and welding ends, fixing end and fixation
Column is connected, and welding ends is provided with welding groove, and superconducting tape is welded in welding groove.
Further, welding ends is provided with welding tooth, and on welding tooth, welding groove and welding tooth one are a pair of for welding groove setting
It answers.
Further, the width of welding groove is greater than welded superconducting tape, and the bottom of welding groove is angularly disposed.
Further, fixing groove is provided in fixed column, fixing groove is connected with the fixing end of lead.
Further, fixing groove and lead Welding.
Further, one end of fixed column is provided with mounting hole, is provided with internal screw thread in mounting hole, to facilitate the peace of fixed column
It fills and fixed.
Further, bottoming hole is additionally provided with inside fixed column, bottoming hole is connected with mounting hole, and heating rod can pass through mounting hole
It is inserted into bottoming hole, is heated for fixed column.
Further, fixed column is provided with connecting hole far from one end of mounting hole, and connecting hole is for the lead with other equipment
Connection.
Further, fixed column and lead are all made of copper.
A kind of welding procedure is included the following steps: using above-mentioned current feed
Fixed column and lead are welded together to form current feed entirety by soldering；
It is put in bottoming hole from mounting hole one end by strip heating rod, opens heating rod power supply and begin to warm up fixed column,
Fixed column transfers heat to lead；
When being heated to 200 degree or so, by solder stick filling lead welding groove in, solder stick under heat effect by
Gradually it is melted into liquid；
When the solder stick in the welding groove of all leads all at liquid when, close heating rod power supply stop heating, make to weld
Solder stick in access slot is in natural cooling state；
When current feed is cooled to 200 degree or so, successively superconducting tape is put into the welding groove of lead, and with wood
The notch that flat rod pushes down all welding grooves is made, superconducting tape is prevented to be detached from welding groove；
It sprays the scolding tin in each welding groove rapidly with absolute alcohol, makes liquid solder rapid curing；
After the completion of scolding tin solidification in all welding grooves, welding is finished, current feed cooled to room temperature.
Current down-lead structure of the invention is simple, ingenious in design, and more superconducting tapes or superconduction winding are connected in parallel can one
Secondary welding fabrication, welding efficiency is high, and welding procedure is simple, greatly reduces the workload of welding, and the labour for reducing worker is strong
Degree, while also saving welding cost.
Detailed description of the invention
Fig. 1 is the main view of current feed of the invention；
Fig. 2 is the perspective view of the lead of current feed of the invention；
Fig. 3 is the cross-sectional view of the lead of current feed of the invention；
Fig. 4 is the perspective view of the fixed column of current feed of the invention；
Fig. 5 is the cross-sectional view of the fixed column of current feed of the invention；
Fig. 6 is the schematic diagram that current feed of the invention is applied on superconducting transformer.
Specific embodiment
In order to be best understood from the purpose of the present invention, function and specific design scheme, with reference to the accompanying drawing, to the present invention
A kind of current feed and welding procedure be described in further detail.
As depicted in figs. 1 and 2, current feed of the invention includes lead 1 and fixed column 2, and lead 1 includes fixing end
11 and welding ends 12, fixing end 11 be connected with fixed column 2, welding ends 12 is provided with welding groove 131, and superconducting tape is accommodated in welding
Welding is completed in slot 131.
Specifically, as shown in Figures 2 and 3, lead 1 is combed, welding ends 12 is provided with multiple welding teeth 13, welds tooth
13 quantity is identical as the quantity of the superconducting tape of required welding；The setting of welding groove 131 is on welding tooth 13, each welding tooth
A welding groove 131 is provided on 13.Preferably, the width of welding groove 131 is slightly larger than welded superconducting tape, super to facilitate
The welding of conduction band material.
Preferably, the bottom of welding groove 131 is angularly disposed, i.e., the depth of the welding groove 131 of one end of close welding tooth tooth tip
Degree is greater than the depth of the welding groove 131 close to fixing end 11.On the one hand, facilitate the welding of superconducting tape, on the other hand, can make to surpass
Conduction band material and 1 junction of lead form radian, avoid superconducting tape that obvious bending occurs and damages.
As shown in figure 4, fixed column 2 is cylindrical type, fixing groove 21, fixing groove 21 and lead 1 are provided in fixed column 2
Fixing end 11 is connected, and the fixing groove 21 of the present embodiment and the fixed form of lead 1 are using soldering.The characteristics of soldering is heating temperature
Spend lower, connector is smooth, and tissue and mechanical performance variation are small, deforms small, and workpiece size is accurate, is very suitable to of the invention
Demand.
As shown in figure 5, one end of fixed column 2 is provided with mounting hole 22, it is provided with internal screw thread in mounting hole 22, it is solid to facilitate
The installation and fixation of fixed column 2.Bottoming hole 23 is additionally provided with inside fixed column 2, bottoming hole 23 is connected with mounting hole 22, and heating rod can
It is inserted into bottoming hole 23 by mounting hole 22, is heated for fixed column 2.Fixed column 2 is provided with connection far from one end of mounting hole 22
Hole 24, connecting hole 24 with the lead of other equipment for connecting.
It is worth noting that, the fixed column 2 of the present embodiment and lead 1 are all made of copper, the electric conductivity and thermal conductivity of copper
Well, it is applicable in very much demand of the invention.
Welding procedure design of the invention are as follows: firstly, being welded together to form fixed column 2 and lead 1 by soldering
Current feed is whole；It is put in bottoming hole 23 from 22 one end of mounting hole by strip heating rod, opens heating rod power supply and start to add
Thermosetting fixed column 2, fixed column 2 transfer heat to lead 1；When being heated to 200 degree or so, solder stick is inserted into lead 1
Welding groove 131 in, solder stick is gradually melted into liquid under heat effect；When in the welding groove of all leads 1 131 weldering
Tin silk all at liquid when, close heating rod power supply stop heating, so that the solder stick in welding groove 131 is in natural cooling state；
When current feed is cooled to 200 degree or so, successively superconducting tape is put into the welding groove 131 of lead 1, and with wooden flat
Flat rod pushes down the notch of all welding grooves 131, and superconducting tape is prevented to be detached from welding groove 131；It is sprayed rapidly with absolute alcohol each
Scolding tin in welding groove 131 makes liquid solder rapid curing；In all welding grooves after the completion of 131 scolding tin solidification, weld
Finish, current feed cooled to room temperature.
As shown in fig. 6, being the application of current feed of the invention on superconducting transformer, superconducting transformer uses superconduction cake
Formula winding, superconduction pie winding are stacked vertically by multiple concentric type pie windings, are connected in parallel between pie winding.Each
Pie winding has a leading-out terminal and an end of incoming cables, and what the pie winding was connected in parallel finger is exactly all pie windings
Leading-out terminal is connected on current feed, and all ends of incoming cables are connected on another current feed.
Current down-lead structure of the invention is simple, ingenious in design, and more superconducting tapes or superconduction winding are connected in parallel can one
Secondary welding fabrication, welding efficiency is high, and welding procedure is simple, greatly reduces the workload of welding, and the labour for reducing worker is strong
Degree, while also saving welding cost.
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction for the essence of the present invention with range, and one of ordinary skilled in the art is reading this explanation
The various modifications made after book to above-described embodiment belong to the range that the present invention is protected.
Claims (10)
1. a kind of current feed, which is characterized in that including lead and fixed column, lead includes fixing end and welding ends, Gu
Fixed end is connected with fixed column, and welding ends is provided with welding groove, and superconducting tape is welded in welding groove.
2. current feed as described in claim 1, which is characterized in that welding ends is provided with welding tooth, and welding groove setting is being welded
It connects on tooth, welding groove and welding tooth correspond.
3. current feed as described in claim 1, which is characterized in that the width of welding groove is greater than welded superconducting tape,
The bottom of welding groove is angularly disposed.
4. current feed as described in claim 1, which is characterized in that be provided with fixing groove, fixing groove and lead in fixed column
The fixing end of row is connected.
5. current feed as claimed in claim 4, which is characterized in that fixing groove and lead Welding.
6. current feed as described in claim 1, which is characterized in that one end of fixed column is provided with mounting hole, in mounting hole
It is provided with internal screw thread, to facilitate the installation and fixation of fixed column.
7. current feed as claimed in claim 6, which is characterized in that be additionally provided with bottoming hole inside fixed column, bottoming hole with
Mounting hole is connected, and heating rod can be heated by mounting hole insertion bottoming hole for fixed column.
8. current feed as claimed in claim 7, which is characterized in that fixed column is provided with connection far from one end of mounting hole
Hole, connecting hole with the lead of other equipment for connecting.
9. current feed as described in claim 1, which is characterized in that fixed column and lead are all made of copper.
10. a kind of welding procedure, using current feed described in any one of claim 1-9, which is characterized in that including as follows
Step:
Fixed column and lead are welded together to form current feed entirety by soldering；
It is put in bottoming hole from mounting hole one end by strip heating rod, opens heating rod power supply and begin to warm up fixed column, it is fixed
Column transfers heat to lead；
When being heated to 200 degree or so, by the welding groove of solder stick filling lead, solder stick gradually melts under heat effect
It is melted into liquid；
When the solder stick in the welding groove of all leads all at liquid when, close heating rod power supply stop heating, make welding groove
Interior solder stick is in natural cooling state；
When current feed is cooled to 200 degree or so, successively superconducting tape is put into the welding groove of lead, and with wooden flat
Flat rod pushes down the notch of all welding grooves, and superconducting tape is prevented to be detached from welding groove；
It sprays the scolding tin in each welding groove rapidly with absolute alcohol, makes liquid solder rapid curing；
After the completion of scolding tin solidification in all welding grooves, welding is finished, current feed cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135197.2A CN109817428A (en) | 2019-02-20 | 2019-02-20 | A kind of current feed and welding procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135197.2A CN109817428A (en) | 2019-02-20 | 2019-02-20 | A kind of current feed and welding procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109817428A true CN109817428A (en) | 2019-05-28 |
Family
ID=66607300
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910135197.2A Pending CN109817428A (en) | 2019-02-20 | 2019-02-20 | A kind of current feed and welding procedure |
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| Country | Link |
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| CN (1) | CN109817428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035486A (en) * | 2019-12-09 | 2021-06-25 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Refrigerating system of low-temperature superconducting magnet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002093615A (en) * | 2000-09-19 | 2002-03-29 | Fuji Electric Co Ltd | Superconducting current lead |
| CN103500625A (en) * | 2013-09-23 | 2014-01-08 | 中国科学院电工研究所 | High-temperature superconducting current lead device |
| CN104051120A (en) * | 2014-06-26 | 2014-09-17 | 中国东方电气集团有限公司 | High-temperature superconducting binary current lead based on conduction cooling |
| CN104625280A (en) * | 2014-12-29 | 2015-05-20 | 中国科学院电工研究所 | Welding structure for superconducting coil |
| CN107437449A (en) * | 2017-09-21 | 2017-12-05 | 广东电网有限责任公司电力科学研究院 | A kind of high-temperature superconducting magnet connection in series-parallel combining structure |
| CN209929105U (en) * | 2019-02-20 | 2020-01-10 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Current lead |
-
2019
- 2019-02-20 CN CN201910135197.2A patent/CN109817428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002093615A (en) * | 2000-09-19 | 2002-03-29 | Fuji Electric Co Ltd | Superconducting current lead |
| CN103500625A (en) * | 2013-09-23 | 2014-01-08 | 中国科学院电工研究所 | High-temperature superconducting current lead device |
| CN104051120A (en) * | 2014-06-26 | 2014-09-17 | 中国东方电气集团有限公司 | High-temperature superconducting binary current lead based on conduction cooling |
| CN104625280A (en) * | 2014-12-29 | 2015-05-20 | 中国科学院电工研究所 | Welding structure for superconducting coil |
| CN107437449A (en) * | 2017-09-21 | 2017-12-05 | 广东电网有限责任公司电力科学研究院 | A kind of high-temperature superconducting magnet connection in series-parallel combining structure |
| CN209929105U (en) * | 2019-02-20 | 2020-01-10 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Current lead |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035486A (en) * | 2019-12-09 | 2021-06-25 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Refrigerating system of low-temperature superconducting magnet |
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