CN106298059B - A kind of interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires - Google Patents
A kind of interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires Download PDFInfo
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- CN106298059B CN106298059B CN201610657983.5A CN201610657983A CN106298059B CN 106298059 B CN106298059 B CN 106298059B CN 201610657983 A CN201610657983 A CN 201610657983A CN 106298059 B CN106298059 B CN 106298059B
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- 238000000034 method Methods 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 239000010955 niobium Substances 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000011888 foil Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 4
- 206010054949 Metaplasia Diseases 0.000 abstract description 3
- 230000015689 metaplastic ossification Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000011889 copper foil Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 229910000657 niobium-tin Inorganic materials 0.000 description 4
- 239000002887 superconductor Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
-
- 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
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The invention discloses a kind of interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires, first subgroup member is required to arrange in the first frock 1 according to assembling；Then Ta pipes are slowly advanced in subgroup member, are advanced at each first frock 1, the first frock 1 is moved to and has completed assembled part, and continue to promote, promote how much length, frock be moved rearwards how long, until being completed；Finally oxygen-free copper pipe is positioned in the second frock 2, the subgroup assembled member and Ta pipes are taken off from the first frock 1, boundling, which is inserted into oxygen-free copper pipe, to be completed.The inventive method causes the labor intensity of the final blank assembling of complex superconducting to be greatly lowered, and efficiency effectively improves, and fully meets interior tin method Nb3The requirement of Sn composite superconducting wires, be advantageous to the processing of strand and the stabilization of performance, the yield rate of assembling can reach more than 97%, effectively control product cost, be suitable for the production of stable mass metaplasia.
Description
Technical field
The invention belongs to superconductor processing technique field, and in particular to a kind of interior tin method Nb3Sn composite superconducting wires are most
The assemble method of whole blank.
Background technology
Nb3Sn superconductors possess preferable high field characteristic, and it is in multiple necks such as high-energy physics HEP and thermonuclear fusion ITER
Domain is widely applied, so as to promote Nb3The development of Sn superconductors.Therefore, in recent years, Nb3The research and development of Sn superconductors
Progress is rapid, and preparation technology continues to optimize, and superconduction combination property has obtained further raising.
Nei Xifa is to prepare Nb3The main method of Sn multi-core composite superconducting wires.Nei Xifa Nb3The design of Sn composite superconducting wires is adopted
With by the subgroup being made up of pure niobium, tin alloy and oxygen-free copper member filament and penetrating conductive and good heat conduction oxygen-free copper matrix material
Material and the thinking in barrier material (such as Ta, Nb etc.).For different purposes, interior tin method Nb3Sn composite superconducting wires using three to
Four assemblings, superconducting core number is from thousands of cores to cores up to ten thousand.In interior tin method Nb3In the production process of Sn composite superconducting wires, most
The assembling of whole blank is wherein particularly critical link.Nei Xifa Nb3Although the final blank assembling only ten of Sn composite superconducting wires
Several to fifties subgroup members, but subgroup member length is up to 2~4 meters, and poling method technological requirement tolerance is as small as possible, therefore select
Suitable assemble method and assembly tool are particularly critical.Assembling effect, which will should reach, makes plug by design requirement marshalling, really
Protect during following process core filaments will not because of malalignment, torsion and deform inequality, so as to cause disconnected core；On the other hand also
Production efficiency must be taken into account, chooses effective, the easy assemble method most beneficial for engineering production.
Domestic Nb3The engineering production of Sn composite superconducting wires is in the starting stage, can be according to without existing example, seek it is suitable,
Assemble method with independent intellectual property right is into Nb3It is badly in need of the technical bottleneck solved in the production of Sn composite superconducting wires.
The content of the invention
It is an object of the invention to provide a kind of interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires, solve
Existing interior tin method Nb3Inequality is deformed because of core filaments malalignment, torsion in the final blank assembling process of Sn composite superconducting wires, easily
The problem of producing disconnected core, and then causing the optimization of superconducting line performance, stability to be affected.
The technical solution adopted in the present invention is：A kind of interior tin method Nb3The assembling side of the final blank of Sn composite superconducting wires
Method, specifically include following steps：
Step 1, final blank constituent element and assembly tool cleaning：
The subgroup aligned member, assembling frock are first removed into surface and oil contaminant with supersonic wave cleaning machine, then use HNO3It is molten
Liquid is cleaned, and is fully rinsed after cleaning with a large amount of water to neutrality, and in clean room drying in oven；
Step 2, subgroup member assembling：
According to assembling drawing arrangement mode, the subgroup member of cleaning is arranged successively in the first frock, final arrangement
Into shape shown in drawing；
Step 3, Ta pipes assemble：
The Ta pipes of cleaning are kept straight, are slowly advanced into the subgroup member arranged in the first frock；It is advanced to each
At individual first frock, the first frock is moved to and has completed assembled part, and continue to promote, promote how much length, frock is backward
How long is movement, until being completed；
Step 4, oxygen-free copper pipe assembles：
Oxygen-free copper pipe is positioned in the second frock, subgroup member and Ta pipes that step 3 assembles are taken from the first frock
Get off, maintain foil section upwards and overall straight, boundling, which is inserted into oxygen-free copper pipe, to be completed.
The features of the present invention also resides in,
First frock is equidistantly placed in step 2.
First frock top is provided with semicircle groove, and semicircle groove size is adapted with Ta pipe sizes used in assembling.
First frock is long 60-80mm, wide 40-50mm, high 80-100mm block, and top semicircle groove is a diameter of
40-50mm。
Ta pipes overlap and have foil section upward when being assembled in step 3.
Second frock is equidistantly placed in step 4.
Second frock top is provided with semicircle groove, and semicircle groove size is mutually fitted with oxygen-free copper pipe size used in assembling
Should.
Second frock is long 80-100mm, wide 40-50mm, high 80-100mm block, and top semicircle groove is a diameter of
50-70mm。
A kind of the invention has the advantages that interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires, passes through
The assembling of the final blank of superconducting wire is carried out using specific frock, labor intensity is greatly lowered, efficiency obtains effectively
Improve, and fully meet interior tin method Nb3The requirement of Sn composite superconducting wires, be advantageous to strand processing and performance it is steady
Fixed, the yield rate of assembling can reach more than 97%, effectively control product cost, be suitable for the production of stable mass metaplasia.
Brief description of the drawings
Fig. 1 is the structural representation of the first frock in assembling process of the present invention；
Fig. 2 is the structural representation of the second frock in assembling process of the present invention；
Fig. 3 is the schematic cross-section of the superconducting wire after the present invention is completed；
Fig. 4 is the SEM photograph of the finished product superconducting wire cross section obtained in the embodiment of the present invention.
In figure, 1. first frocks, 2. second frocks, 3. oxygen-free copper pipe matrixes, 4.Ta pipes, 5. subgroups member.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
A kind of interior tin method Nb of the present invention3The assemble method of the final blank of Sn composite superconducting wires, specifically includes following steps：
Step 1, final blank constituent element and assembly tool cleaning：
The subgroup aligned member, assembling frock are first removed into surface and oil contaminant with supersonic wave cleaning machine, then use HNO3With
H2O mixed solution (HNO3And H2O mass ratio is 1:3) cleaned, fully rinsed after cleaning with a large amount of water to neutrality, and
In clean room drying in oven, drying temperature is at 60 DEG C or so；Cleaning process avoids exotic from being bumped into.
Step 2, subgroup member assembling：
The first frock 1 of assembling is equidistantly placed on assembly platform, the structure of the first frock 1 is as shown in figure 1, the first frock
1 design must consider weight, optimization assembling etc., and its long 60-80mm, wide 40-50mm, high 80-100mm, top is straight
Footpath 40-50mm semicircle；Top half-circle area is used to assemble subgroup member and Ta pipes.According to assembling drawing arrangement mode, by cleaning
Subgroup member arranged successively in the first frock 1 according to drawing, be finally arranged in shape shown in drawing；The of particular design
One frock 1 is advantageous to subgroup member and is in close contact；But when arranging, the contact situation between close observation subgroup member is still needed to, is carried out in good time
Adjustment；After the completion of arrangement, unitary rotation subgroup is first, and situation is contacted between inspection subgroup member, ensures that subgroup member is in close contact.
Step 3, Ta pipes assemble：
The Ta pipes of cleaning are kept straight, Ta pipes overlap and have foil section upwards (in the patent No.：
ZL201110257609.3, it is entitled《One kind is used for Nb3The processing method of Ta barrier layer pipes in prepared by Sn superconducting wires》It is special
Have been described in detail in profit, be not introduced herein), it is slowly advanced into the subgroup member arranged in the first frock 1；It is advanced to
At each first frock 1, the first frock 1 is moved to and has completed assembled part, and continue to promote, promote how much length, work
Dress be moved rearwards how long, until being completed；In this step, it is straight and bear that the effect of the first frock 1 is to maintain assembling material
Certain weight of material；In assembling process, close observation copper foil situation is needed, outer layer subgroup member and copper foil excessive friction is avoided, makes
Phenomenon is torn into copper foil.
Step 4, oxygen-free copper pipe assembles：
Oxygen-free copper pipe is positioned in the second frock 2 equidistantly placed, the structure of the second frock 2 is as shown in Fig. 2 the second work
2 assembling for being mainly designed to optimize final stage is filled, its long 80-100mm, wide 40-50mm, high 80-100mm, top is straight
Footpath 50-70mm semicircle；Top half-circle area is used for the assembling of oxygen-free copper pipe and subgroup member/Ta pipe constituent elements.Step 3 is assembled
Subgroup member and Ta pipes taken off from the first frock 1, maintain that foil section is upwards and overall straight, and boundling is inserted into anaerobic
Completed in copper pipe, the superconducting wire section after assembling is as shown in Figure 3；In this step, the effect of the second frock 2 is to maintain anaerobic
Copper pipe is straight and bears certain weight of material；In assembling process, close observation copper foil situation is needed, avoids copper foil and oxygen-free copper pipe
Excessive friction, copper foil is caused to tear phenomenon.
Embodiment 1
Any frock is not used in assembling process, manually manual alignment, the arrangement of alignment processes Central Asia constituent element are tight for subgroup member
Close situation and abnormal subgroup member are not easy to observe and found；It is inserted into after the completion of arrangement into Ta pipes；During the assembling of this step,
Because the subgroup arranged is first, Ta pipes are helped by artificial, it is difficult to keep material straight, easily cause copper foil tear.By anaerobic
Copper pipe is positioned on assembling dolly, and the subgroup assembled member, Ta pipe boundlings are inserted into oxygen-free copper pipe；When the step assembles
Copper pipe is not fixed easily, it is prone to is assembled excessive friction, is caused assembling to fail.Using the assembling vacancy at least 6 of this method
People, assembling a collection of 14 final blanks needs about 24 hours, and labor intensity is big, and yield rate only has 70%；The interior tin assembled
Method Nb3The final blank following process of Sn is poor：It is due to arranging the reason broken string number such as not close, distortion subgroup member between subgroup member
3~5 times, and by tin method Nb in finished product3Sn composite superconducting wires cross section SEM photograph observes, part Ta pipes overlapping regions without
Copper foil, so as to cause Ta barrier layers to rupture, ultimately result in outer layer oxygen-free copper liptinite and be contaminated, tin method Nb in finished product3Sn is answered
Superconducting wire RRR values are closed less than standard requirement.
Embodiment 2
Using the first frock 1 and the second frock 2 in assemble method of the present invention, and assembled according to this assemble method.
3~4 people are needed in assembling process, assembling a collection of 14 final blanks needs about 6 hours, and labor intensity is greatly lowered, work
Efficiency is obviously improved；In the assembling process of this method, assembling failure phenomenon is not found, assembly yield reaches more than 97%, interior
Tin method Nb3The following process of Sn composite superconducting wires be improved significantly, be substantially absent from due to subgroup member distortion etc. group
Dress reason causes to break, and such as Fig. 4, by tin method Nb in finished product3Sn composite superconducting wires cross section SEM photograph observes, due to
The well-regulated presence of cushion anaerobic copper foil, the deformation of Ta pipes lap-joint is uniform, occurs without run-down phenomenon, finished wire rod RRR values
Meet or exceed standard requirement.
The interior tin method Nb using the present invention is can be seen that from embodiment 1-23The final blank assemble method of Sn complex superconductings,
Labor intensity is greatly lowered, and efficiency effectively improves, and fully meets interior tin method Nb3Sn composite superconducting wires make
With requiring, be advantageous to the processing of strand and the stabilization of performance, the yield rate of assembling can reach more than 97%, effectively control product
Cost, it is suitable for the production of stable mass metaplasia.
Claims (8)
- A kind of 1. interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires, it is characterised in that specifically include following step Suddenly：Step 1, final blank constituent element and assembly tool cleaning：The subgroup aligned member, assembly tool are first removed into surface and oil contaminant with supersonic wave cleaning machine, then use HNO3Solution carries out clear Wash, fully rinsed after cleaning with a large amount of water to neutrality, and in clean room drying in oven；Subgroup member is by pure niobium, tin alloy and nothing What oxygen copper was formed；Step 2, subgroup member assembling：According to assembling drawing arrangement mode, the subgroup member of cleaning is arranged successively in the first frock (1), is finally arranged in Shape shown in drawing；Step 3, Ta pipes assemble：The Ta pipes of cleaning are kept straight, are slowly advanced into the subgroup member arranged in the first frock (1)；It is advanced to each First frock (1) place, the first frock (1) is moved to and has completed assembled part, and continues to promote, and promotes how much length, frock Be moved rearwards how long, until being completed；Step 4, oxygen-free copper pipe assembles：Oxygen-free copper pipe is positioned in the second frock (2), the subgroup member and Ta pipes that step 3 is assembled are from the first frock (1) Take off, maintain foil section upwards and overall straight, boundling, which is inserted into oxygen-free copper pipe, to be completed.
- A kind of 2. interior tin method Nb according to claim 13The assemble method of the final blank of Sn composite superconducting wires, its feature It is, first frock (1) is equidistantly placed in the step 2.
- A kind of 3. interior tin method Nb according to claim 13The assemble method of the final blank of Sn composite superconducting wires, its feature It is, the first frock (1) top is provided with semicircle groove, and semicircle groove size is mutually fitted with Ta pipe sizes used in assembling Should.
- A kind of 4. interior tin method Nb according to claim 33The assemble method of the final blank of Sn composite superconducting wires, its feature It is, first frock (1) is long 60-80mm, wide 40-50mm, high 80-100mm block, top semicircle groove diameter For 40-50mm.
- A kind of 5. interior tin method Nb according to claim 13The assemble method of the final blank of Sn composite superconducting wires, its feature It is, Ta pipes overlap and have foil section upward when being assembled in the step 3.
- A kind of 6. interior tin method Nb according to claim 13The assemble method of the final blank of Sn composite superconducting wires, its feature It is, second frock (2) is equidistantly placed in the step 4.
- A kind of 7. interior tin method Nb according to claim 13The assemble method of the final blank of Sn composite superconducting wires, its feature It is, the second frock (2) top is provided with semicircle groove, semicircle groove size and oxygen-free copper pipe size phase used in assembling Adapt to.
- A kind of 8. interior tin method Nb according to claim 73The assemble method of the final blank of Sn composite superconducting wires, its feature It is, second frock (2) is long 80-100mm, wide 40-50mm, high 80-100mm block, and top semicircle groove is straight Footpath is 50-70mm.
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| CN201610657983.5A CN106298059B (en) | 2016-08-11 | 2016-08-11 | A kind of interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires |
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| CN201610657983.5A CN106298059B (en) | 2016-08-11 | 2016-08-11 | A kind of interior tin method Nb3The assemble method of the final blank of Sn composite superconducting wires |
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| JP4523861B2 (en) * | 2005-03-10 | 2010-08-11 | 株式会社神戸製鋼所 | Method for producing Nb3Sn superconducting wire |
| JP4034802B2 (en) * | 2005-11-22 | 2008-01-16 | 株式会社神戸製鋼所 | Nb or Nb-based alloy rod for production of superconducting wire and method for producing Nb3Sn superconducting wire |
| CN102298995B (en) * | 2011-09-01 | 2013-01-16 | 西部超导材料科技有限公司 | Method for processing Ta blocking layer tube component in preparation of Nb3Sn superconducting wire through internal tin method |
| CN104123998B (en) * | 2014-07-30 | 2017-04-05 | 西部超导材料科技股份有限公司 | Nei Xifa Nb3Preparation methoies of the Sn with multicore CuNb compound bars |
| CN105513712B (en) * | 2015-11-25 | 2017-03-22 | 西部超导材料科技股份有限公司 | Preparation method of high-critical-current-density Nb3Sn superconductive wire rod |
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