CN106252020A - A kind of superconducting coil for superconducting cyclotron and coiling dipping method thereof - Google Patents
A kind of superconducting coil for superconducting cyclotron and coiling dipping method thereof Download PDFInfo
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- CN106252020A CN106252020A CN201610614092.1A CN201610614092A CN106252020A CN 106252020 A CN106252020 A CN 106252020A CN 201610614092 A CN201610614092 A CN 201610614092A CN 106252020 A CN106252020 A CN 106252020A
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- coil
- superconducting
- superconduction
- coiling
- thickness
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/048—Superconductive coils
Abstract
The invention belongs to superconducting cyclotron technical field, be specifically related to a kind of superconducting coil for superconducting cyclotron and coiling dipping method thereof.Wherein, a kind of superconducting coil for superconducting cyclotron, including the cylindrical coil rack being wound with superconduction thickness coil, described superconduction thickness coil uses superconducting line coiling, described coil rack one end is provided with coil rack end plate, described coil rack end plate is provided with several guiding gutters, epoxy resin-impregnated on described superconducting line.Using above-mentioned superconducting coil and coiling dipping method thereof, it is possible to the space between the superconducting line of coiling superconduction thickness coil is filled up completely with by epoxy resin, making between superconducting line, to cause because there is space superconducting coil that " quenching " phenomenon occurs.
Description
Technical field
The invention belongs to superconducting cyclotron technical field, be specifically related to a kind of superconduction for superconducting cyclotron
Coil and coiling dipping method thereof.
Background technology
Cyclotron is to utilize magnetic field and electric field jointly to make charged particle make circumnutation, at the volley through high-frequency electric field
The device repeatedly accelerated, is the important instrument in high-energy physics, and wherein superconducting cyclotron is that current medical proton therapeutic adds
The nucleus equipment of speed device.Medical proton therapy accelerator is capable of swelling with the proton in microcosmos, Heavy ion beam treatment
Tumor, is the most advanced radiation therapy technology in the world today, and the most indivedual developed countries grasp and apply this technology.Domestic open up
Open but the development work of superconducting cyclotron is temporarily had not been completed.
The magnetic field of superconducting cyclotron is mainly provided by superconducting coil, owing to required magnetic field is relatively big, so superconducting line
The radial direction of circle is thicker.The superconducting coil that coiling completes is when excitation, under the interaction of electrical current and self-generated magnetic field, and coiling
The superconducting line of superconducting coil is it may happen that relative motion.Such motion occurs, and the heat produced because of frictional force can make superconduction
Line temperature raises, and i.e. quenches phenomenon, accordingly, it would be desirable to utilize epoxy resin to bond to prevent from quenching now by carrying out between superconducting line
The generation of elephant.Superconducting coil on superconducting MRI uses the method that resin is smeared on limit coiling superconducting line limit on superconducting line at present
(MRI is nuclear magnetic resonance).This technology mode easily produces space between superconducting wire when smearing resin.Work as thermal stress
Or electromagnetic force iso-stress is when concentrating in this space, between superconducting line, the resin of bonding will occur crack.Have to cause and quench
The probability that phenomenon occurs.
Summary of the invention
Problem is quenched, in order to reduce superconduction as far as possible for what the space between the superconducting line existing for current superconducting coil caused
Residual clearance in line, suppresses being mixed into of gas in superconducting line by epoxy resin is impregnated into superconducting line in a vacuum, anti-
Only resin produces space, stop to quench the probability that phenomenon occurs.
For reaching object above, the technical solution used in the present invention is a kind of superconducting line for superconducting cyclotron
Circle, including being wound with the cylindrical coil rack of superconduction thickness coil, described superconduction thickness coil uses superconducting line coiling, wherein,
Described coil rack one end is provided with coil rack end plate, described coil rack end plate is provided with several guiding gutters,
Epoxy resin-impregnated on described superconducting line.
Further, described guiding gutter is uniformly arranged on described coil rack end plate, and described guiding gutter can pass through liquid
Described epoxy resin.
Further, described coil rack uses the metal material of high temperature high voltage resistant to make.
Further, described superconducting line uses niobium titanium material.
Further, the radial outside of described superconduction thickness coil is provided with copper strapping tape.
Further, described copper strapping tape impregnates described epoxy resin.
For reaching object above, the invention also discloses a kind of for above-described surpassing for superconducting cyclotron
The coiling dipping method of loop, comprises the steps:
Step (S1), with superconduction thickness coil described in described superconducting line coiling on described coil rack, coiling pretightning force is little
In equal to 12kgf；
Step (S2), toasts and evacuation the described superconduction thickness coil being wound on described coil rack, baking
With the pumpdown time more than or equal to 12 hours, the temperature of baking is 60 degree, and vacuum is 1X10-1Pa-1X10-2Pa；
Step (S3), injects liquid from the described guiding gutter of described coil rack under vacuum environment to described superconduction thickness coil
State epoxy resin carries out dip operation to described superconduction thickness coil, and the standing setting time of dipping is less than 10 minutes, and vacuum is
1X10-1Pa-1X10-2Pa；
Step (S4), carries out baking solid by the described superconduction thickness coil being wound on described coil rack after dip operation
Changing, the baking-curing time is more than or equal to 12 hours.
Further, also include step (S5), at the outside coiling copper binding strap of described superconduction thickness coil, at copper described in coiling
On described superconduction thickness coil, described epoxy resin is smeared while band.
Further, also including step (S6), to coiling, the superconducting coil of described copper binding strap toasts so that described
Described epoxy resin cure between copper binding strap and described superconduction thickness coil, baking temperature, more than 40 degree, less than 60 degree, toasts
10 minutes time.
Further, in step (S3), dipping temperature controls at 40 degree, and in step (S4), baking-curing temperature is 60 degree.
The beneficial effects of the present invention is:
1. there is no space between the superconducting line of superconducting coil, improve the stability of superconducting coil；
The most easy to operate, highly versatile；
3. the winding method of superconduction thickness coil of complete set, dipping method and to coiling and the inspection of dipping effect are proposed
The comprehensive enforcement of proved recipe method, as superconduction thickness coil winding and the impregnation technology flow process of superconducting cyclotron.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the superconducting coil for superconducting cyclotron described in the specific embodiment of the invention；
Fig. 2 is the initial temperature graph of a relation with initial viscosity of epoxy resin described in the specific embodiment of the invention；
In figure: 1-coil rack, 2-superconduction thickness coil, 3-coil rack end plate, 4-guiding gutter.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of superconducting coil for superconducting cyclotron that the present invention provides, including being wound with superconduction
The cylindrical coil rack 1 of thick coil 2, superconduction thickness coil 2 uses superconducting line coiling, wherein, arranges in coil rack 1 one end
There is coil rack end plate 3, coil rack end plate 3 is provided with several guiding gutters 4, epoxy resin-impregnated on superconducting line.
Guiding gutter 4 is uniformly arranged on coil rack end plate 3, and described guiding gutter 4 can be by the epoxy resin of liquid.?
The wide 2mm of guiding gutter 4 in the present embodiment, deep 1mm, the quantity of guiding gutter 4 is 12 (between the guiding gutter 4 that each two is adjacent
It is divided into 30 degree).
Coil rack 1 uses the metal material of high temperature high voltage resistant to make, and is rustless steel in the present embodiment.Superconducting line uses niobium
Titanium (NbTi) material makes.
Additionally, the radial outside at superconduction thickness coil 2 is provided with copper strapping tape, copper strapping tape impregnates asphalt mixtures modified by epoxy resin equally
Fat.
For reaching object above, present invention also offers the one for above-mentioned superconducting coil for superconducting cyclotron
The coiling dipping method of superconducting coil, comprise the steps:
Step S1, with superconducting line coiling superconduction thickness coil 2 on coil rack 1, coiling pretightning force is less than or equal to 12kgf；
Coil rack 1 is fixed on coil winding machine and carries out by this step, and monitoring coiling pretightning force in real time；
Step S2, the superconduction thickness coil 2 on ring framework 1 online to coiling toasts and evacuation, baking and evacuation
Time is more than or equal to 12 hours；Concrete operations are the superconducting coils (including coil rack 1 and superconduction thickness coil 2) coiling completed
Putting into heat-wind circulate drying baking oven to carry out toasting and evacuation, baking and pumpdown time are more than or equal to 12 hours, baking
Temperature is 60 degree, and vacuum is 1X10-1Pa-1X10-2Pa；
Step S3, injects liquid-state epoxy resin from the guiding gutter 4 of coil rack 1 under vacuum environment to superconduction thickness coil 2
Superconduction thickness coil 2 is carried out dip operation, and dipping temperature controls at 40 degree, and the standing setting time of dipping was less than 10 minutes, very
Reciprocal of duty cycle is 1X10-1Pa-1X10-2Pa；Concrete operations are to put into quiet by superconducting coil (including coil rack 1 and superconduction thickness coil 2)
State batch mixing vacuum pressure casting equipment is carried out, controls and under conditions of net value setting time meeting above-mentioned temperature, epoxy
Resin can be flowed by guiding gutter 4 and arrive before solidification between every two superconducting lines of superconduction thickness coil 2.Epoxy resin
Initial temperature and relation (abscissa is temperature unit, and vertical coordinate is viscosity unit), the initial temperature as shown in Figure 2 of initial viscosity
Time relatively low, the initial viscosity of epoxy resin is relatively big, and epoxy resin viscosity is big, is unfavorable for epoxy resin flows, it is therefore desirable to control
Dipping temperature, at 40 degree, is beneficial to the flowing of epoxy resin.
Step S4, carries out baking-curing by the superconduction thickness coil 2 being wound on coil rack 1 after dip operation, baking
Hardening time is more than or equal to 12 hours, and baking-curing temperature is 60 degree.Concrete operations are superconducting coils dip operation completed
(including coil rack 1 and superconduction thickness coil 2) puts into heat-wind circulate drying baking oven and toasts.
Also include step S5, at the radial outside coiling copper binding strap of superconduction thickness coil 2, while coiling copper band
Epoxy resin is smeared, it is achieved the epoxy resin dipping to copper binding strap on superconduction thickness coil 2.
Also including step S6, to coiling, the superconducting coil of copper binding strap toasts so that copper binding strap is thick with superconduction
Epoxy resin cure between coil 2, baking temperature is more than 40 degree, (can not be more than 60 degree, in order to avoid epoxy resin liquid less than 60 degree
Change), baking time 10 minutes.
Device of the present invention is not limited to the embodiment described in detailed description of the invention, those skilled in the art according to
Technical scheme draws other embodiment, also belongs to the technological innovation scope of the present invention.
Claims (10)
1. for a superconducting coil for superconducting cyclotron, including the cylindrical coil being wound with superconduction thickness coil (2)
Skeleton (1), described superconduction thickness coil (2) uses superconducting line coiling, it is characterized in that: be provided with in described coil rack (1) one end
Coil rack end plate (3), is provided with several guiding gutters (4) on described coil rack end plate (3), and described superconducting line impregnates
Epoxy resin.
2. superconducting coil as claimed in claim 1, is characterized in that: described guiding gutter (4) is uniformly arranged on described coil rack
On end plate (3), described guiding gutter (4) can be by the described epoxy resin of liquid.
3. superconducting coil as claimed in claim 1, is characterized in that: described coil rack (1) uses the metal of high temperature high voltage resistant
Material makes.
4. superconducting coil as claimed in claim 1, is characterized in that: described superconducting line uses niobium titanium material.
5. superconducting coil as claimed in claim 1, is characterized in that: the radial outside of described superconduction thickness coil (2) is provided with copper
Strapping tape.
6. superconducting coil as claimed in claim 5, is characterized in that: impregnate described epoxy resin on described copper strapping tape.
7. for the coiling dipping method of superconducting coil for superconducting cyclotron described in any one of claim 1 to 6,
Comprise the steps:
Step (S1), with superconduction thickness coil described in described superconducting line coiling on described coil rack, coiling pretightning force is less than
In 12kgf；
Step (S2), toasts and evacuation the described superconduction thickness coil being wound on described coil rack, toasts and take out
Vacuum time is more than or equal to 12 hours, and the temperature of baking is 60 degree, and vacuum is 1 × 10-1Pa-1×10-2Pa；
Step (S3), injects liquid ring from the described guiding gutter of described coil rack under vacuum environment to described superconduction thickness coil
Epoxy resins carries out dip operation to described superconduction thickness coil, and the standing setting time of dipping is less than 10 minutes, and vacuum is 1 ×
10-1Pa-1×10-2Pa；
Step (S4), carries out baking-curing by the described superconduction thickness coil being wound on described coil rack after dip operation,
The baking-curing time is more than or equal to 12 hours.
8. the coiling dipping method of superconducting coil as claimed in claim 7, is characterized in that: also include step (S5), described
The outside coiling copper binding strap of superconduction thickness coil, smears described while copper band described in coiling on described superconduction thickness coil
Epoxy resin.
9. the coiling dipping method of superconducting coil as claimed in claim 8, is characterized in that: also include step (S6), to coiling
The superconducting coil of described copper binding strap toasts so that described ring between described copper binding strap and described superconduction thickness coil
Epoxy resins solidify, baking temperature more than 40 degree, less than 60 degree, baking time 10 minutes.
10. the coiling dipping method of the superconducting coil as described in claim 7-9 any one, is characterized in that: in step (S3)
Dipping temperature controls at 40 degree, and in step (S4), baking-curing temperature is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610614092.1A CN106252020A (en) | 2016-07-29 | 2016-07-29 | A kind of superconducting coil for superconducting cyclotron and coiling dipping method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610614092.1A CN106252020A (en) | 2016-07-29 | 2016-07-29 | A kind of superconducting coil for superconducting cyclotron and coiling dipping method thereof |
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| Publication Number | Publication Date |
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| CN106252020A true CN106252020A (en) | 2016-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610614092.1A Pending CN106252020A (en) | 2016-07-29 | 2016-07-29 | A kind of superconducting coil for superconducting cyclotron and coiling dipping method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545539A (en) * | 2019-01-22 | 2019-03-29 | 中国科学院电工研究所 | A kind of three tin superconducting wire circle production method of exoskeletal niobium |
| CN113345674A (en) * | 2021-05-10 | 2021-09-03 | 中国原子能科学研究院 | Superconducting radial thick coil for superconducting cyclotron and winding and dipping method thereof |
| CN113903541A (en) * | 2021-11-04 | 2022-01-07 | 中国原子能科学研究院 | Large high-temperature superconducting magnetic system based on small refrigerator and temperature control method |
| WO2022134449A1 (en) * | 2020-12-23 | 2022-06-30 | 华中科技大学 | Axial reinforcing method and device for electromagnetic forming coil |
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| JPS58222508A (en) * | 1982-06-18 | 1983-12-24 | Toshiba Corp | Bobbin for superconductive magnet |
| CN102496439A (en) * | 2011-12-01 | 2012-06-13 | 西部超导材料科技有限公司 | Framework applied to superconductive solenoid magnet |
| CN102723162A (en) * | 2012-07-09 | 2012-10-10 | 中国科学院电工研究所 | Coil for stainless steel framed Nb3Sn superconducting solenoid |
| CN102723161A (en) * | 2012-07-09 | 2012-10-10 | 中国科学院电工研究所 | Solenoid coil of ceramic framework superconducting magnet |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58222508A (en) * | 1982-06-18 | 1983-12-24 | Toshiba Corp | Bobbin for superconductive magnet |
| CN102496439A (en) * | 2011-12-01 | 2012-06-13 | 西部超导材料科技有限公司 | Framework applied to superconductive solenoid magnet |
| CN102723162A (en) * | 2012-07-09 | 2012-10-10 | 中国科学院电工研究所 | Coil for stainless steel framed Nb3Sn superconducting solenoid |
| CN102723161A (en) * | 2012-07-09 | 2012-10-10 | 中国科学院电工研究所 | Solenoid coil of ceramic framework superconducting magnet |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545539A (en) * | 2019-01-22 | 2019-03-29 | 中国科学院电工研究所 | A kind of three tin superconducting wire circle production method of exoskeletal niobium |
| CN109545539B (en) * | 2019-01-22 | 2020-07-17 | 中国科学院电工研究所 | Method for manufacturing frameless niobium-tin superconducting coil |
| WO2022134449A1 (en) * | 2020-12-23 | 2022-06-30 | 华中科技大学 | Axial reinforcing method and device for electromagnetic forming coil |
| CN113345674A (en) * | 2021-05-10 | 2021-09-03 | 中国原子能科学研究院 | Superconducting radial thick coil for superconducting cyclotron and winding and dipping method thereof |
| CN113345674B (en) * | 2021-05-10 | 2023-03-07 | 中国原子能科学研究院 | Superconducting radial thick coil for superconducting cyclotron and winding and dipping method thereof |
| CN113903541A (en) * | 2021-11-04 | 2022-01-07 | 中国原子能科学研究院 | Large high-temperature superconducting magnetic system based on small refrigerator and temperature control method |
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