CN117995505B - Switchable field-shaped magnetic control crystal pulling superconducting magnet - Google Patents
Switchable field-shaped magnetic control crystal pulling superconducting magnet Download PDFInfo
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- CN117995505B CN117995505B CN202410389842.4A CN202410389842A CN117995505B CN 117995505 B CN117995505 B CN 117995505B CN 202410389842 A CN202410389842 A CN 202410389842A CN 117995505 B CN117995505 B CN 117995505B
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- 239000013078 crystal Substances 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000009467 reduction Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The application discloses a switchable field-shaped magnetic control crystal pulling superconducting magnet, which comprises the following components: a superconducting magnet body and a rotating mechanism; the rotating mechanism is used for supporting the superconducting magnet body and enabling the superconducting magnet body to rotate on a front vertical plane; the superconducting magnet body includes: the magnetic shielding vacuum chamber, the cold shield, the first superconducting coil, the second superconducting coil, the pull rod, the refrigerator, the current lead and the superconducting power supply; the first superconducting coil and the second superconducting coil are two annular coils which are distributed oppositely and are arranged in the cold screen; the superconducting power supply is in switchable electrical connection with the first superconducting coil and the second superconducting coil through current leads, so that the first superconducting coil and the second superconducting coil are in forward series connection or reverse series connection. According to the application, the superconducting magnet main body is rotated on the positive vertical plane through the rotating mechanism, and the first superconducting coil and the second superconducting coil are connected in series in a switchable manner, so that three magnetic field types of the superconducting magnet are switched, and the crystal pulling production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of magnet equipment, in particular to a field-switchable magnetic control crystal pulling superconducting magnet.
Background
At present, conventional magnetic control crystal pulling superconducting magnets are mainly divided into a vertical field, a horizontal field and a CUSP hook-shaped field according to magnetic field types, but a single superconducting magnet can only meet a fixed magnetic field type and cannot switch magnetic field types, and when different crystal pulling products are produced, different superconducting magnets are needed to be used for realizing, so that the cost is high and the production efficiency is low. Therefore, it is necessary to study the switching of the magnetic field of the superconducting magnet.
In the prior art, after the connection relation between a current lead and a coil part is changed, a superconducting power supply inputs exciting current to each coil part, so that a magnetic field formed by each coil part is regulated as required. Not only can different types of magnetic fields (CUSP CUSP fields and vertical fields) be generated, but also the magnetic field distribution can be adjusted.
However, the above-mentioned prior art can only realize switching between the two magnetic field types of the CUSP field and the vertical field of the CUSP, and when producing a crystal pulling product requiring a horizontal field, it is still necessary to additionally provide and replace a superconducting magnet of the horizontal field, and the crystal pulling production efficiency is low.
Disclosure of Invention
The invention provides a switchable field-shaped magnetic control crystal pulling superconducting magnet, which is used for solving the problems that the magnetic field type of the superconducting magnet is not switched in various ways and the crystal pulling production efficiency is low in the prior art.
In one aspect, the present invention provides a switchable field-type magnetically controlled crystal pulling superconducting magnet comprising: a superconducting magnet body and a rotating mechanism.
The rotating mechanism is used for supporting the superconducting magnet body and enabling the superconducting magnet body to rotate on a front vertical plane.
The superconducting magnet body includes: the vacuum magnetic shielding device comprises a vacuum magnetic shielding cavity, a cold screen, a first superconducting coil, a second superconducting coil, a pull rod, a refrigerator, a current lead and a superconducting power supply.
The cold screen is arranged inside the magnetic shielding vacuum cavity.
The first superconducting coil and the second superconducting coil are two annular coils which are distributed oppositely and are arranged in the cold screen.
The pull rod is used for respectively fixing the cold screen, the first superconducting coil and the second superconducting coil in the magnetic shielding vacuum cavity.
The refrigerator is fixedly arranged at the top of the magnetic shielding vacuum cavity and is connected with the cold shield, the first superconducting coil and the second superconducting coil in a cold conduction mode.
The superconducting power supply is in switchable electrical connection with the first superconducting coil and the second superconducting coil through the current lead, so that the first superconducting coil and the second superconducting coil are connected in series in the forward direction or in the reverse direction.
In one possible implementation, the current lead includes: a positive electrode, a negative electrode, a first superconducting lead, a second superconducting lead, a third superconducting lead, and a fourth superconducting lead.
The superconducting power supply is electrically connected with the positive electrode and the negative electrode respectively.
The positive electrode is electrically connected with one end of the first superconducting coil through the first superconducting lead.
The negative electrode is in switchable electrical connection with the other end of the first superconducting coil and the two ends of the second superconducting coil through the second superconducting lead, the third superconducting lead and the fourth superconducting lead, so that the first superconducting coil and the second superconducting coil are connected in forward series or reverse series.
In one possible implementation, the negative electrode includes: the upper part of the negative electrode, the lower part of the negative electrode and the insulating sleeve.
The insulating sleeve fixedly connects the upper part of the negative electrode with the lower part of the negative electrode.
The first superconducting lead and the second superconducting lead are respectively and electrically connected with two ends of the first superconducting coil, and the third superconducting lead and the fourth superconducting lead are respectively and electrically connected with two ends of the second superconducting coil.
When the upper part of the negative electrode is electrically connected with the third superconducting lead, and the lower part of the negative electrode is electrically connected with the second superconducting lead and the fourth superconducting lead, the first superconducting coil and the second superconducting coil are reversely connected in series.
When the upper part of the negative electrode is electrically connected with the fourth superconducting lead, and the lower part of the negative electrode is electrically connected with the second superconducting lead and the third superconducting lead, the first superconducting coil and the second superconducting coil are connected in series in the forward direction.
In one possible implementation manner, the positive electrode and the negative electrode are both in dynamic sealing connection with the top of the magnetic shielding vacuum cavity.
In one possible implementation, the rotation mechanism includes: the device comprises a frame, a rotating shaft, a bearing seat, a positioning flange and a positioning pin.
The rack is arranged at two sides of the magnetic shielding vacuum cavity.
The bearing seat is fixedly arranged on the frame.
The bearing seat is rotationally connected with the positioning flange through the rotating shaft.
The positioning flange is fixedly connected with the magnetic shielding vacuum cavity.
The locating pin is fixedly arranged on the frame and is opposite to the locating flange.
In one possible implementation, the rotation mechanism further includes: a reduction gearbox.
The reduction gearbox is fixedly arranged on the frame and is rotationally connected with the rotating shaft.
In one possible implementation manner, the inner cylinder of the magnetic shielding vacuum cavity is two cylinders which are orthogonal in cross and have the same diameter, the inside is a vacuum sealing environment, and the outer wall is a magnetic permeability material.
In one possible implementation, the pull rod includes: axial pull rod and radial pull rod.
The axial pull rod and the radial pull rod are respectively used for fixing the cold screen, the first superconducting coil and the second superconducting coil in the magnetic shielding vacuum cavity from the axial direction and the radial direction.
The switchable field-shaped magnetic control crystal pulling superconducting magnet has the following advantages:
the superconducting magnet main body is rotated on the positive vertical plane through the rotating mechanism, and the first superconducting coil and the second superconducting coil are connected in series in a switchable mode, so that three magnetic field types of the superconducting magnet are switched, and the crystal pulling production efficiency is improved.
Through negative pole and magnetism shielding vacuum chamber top dynamic seal connection, rotatory negative pole can realize with first superconducting coil, second superconducting coil's electric connection switch, easy operation, the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a first station of a switchable field-type magnetron crystal pulling superconducting magnet according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a second station of a switchable field-type magnetron crystal pulling superconducting magnet according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a first station CUSP hook-shaped field front view structure of a switchable field-shaped magnetic control crystal pulling superconducting magnet according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first station vertical field perspective view of a switchable field-type magnetron crystal pulling superconducting magnet according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second-station horizontal field front view structure of a switchable field-type magnetron crystal pulling superconducting magnet according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a rotating mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an electrical connection between a current lead and a superconducting coil according to an embodiment of the present invention;
fig. 8 is a schematic diagram of still another electrical connection between a current lead and a superconducting coil according to an embodiment of the present invention.
Reference numerals illustrate:
The device comprises a 1-superconducting magnet body, a 101-magnetic shielding vacuum cavity, a 102-cold screen, a 1031-first superconducting coil, a 1032-second superconducting coil, a 1041-axial pull rod, a 1042-radial pull rod, a 105-refrigerator, 106-current leads, a 1061-positive electrode, a 1062-negative electrode, a 10621-negative electrode upper part, a 10622-negative electrode lower part, a 10623-insulating sleeve, a 10631-first superconducting lead, a 10632-second superconducting lead, a 10633-third superconducting lead, a 10634-fourth superconducting lead, a 107-superconducting power supply, a 2-rotating mechanism, a 201-rack, a 202-reduction gearbox, a 203-rotating shaft, a 204-bearing seat, a 205-positioning flange, a 206-positioning pin and a 3-crucible.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, an embodiment of the present invention provides a switchable field-type magnetically controlled pullsuperconducting magnet, comprising: a superconducting magnet body 1 and a rotation mechanism 2.
The rotation mechanism 2 is for supporting the superconducting magnet body 1 and for rotating the superconducting magnet body 1 on a front vertical plane.
The superconducting magnet body 1 includes: a magnetic shielding vacuum chamber 101, a cold shield 102, a first superconducting coil 1031, a second superconducting coil 1032, a tie rod, a refrigerator 105, a current lead 106, and a superconducting power supply 107.
The cold screen 102 is disposed inside the magnetic shielding vacuum chamber 101.
The first superconducting coil 1031 and the second superconducting coil 1032 are two relatively distributed annular coils, and are both disposed inside the cold shield 102.
The pull rod fixes the cold shield 102, the first superconducting coil 1031, and the second superconducting coil 1032 inside the magnetic shielding vacuum chamber 101, respectively.
The refrigerator 105 is fixedly arranged at the top of the magnetic shielding vacuum chamber 101, and is in cold-conducting connection with the cold shield 102, the first superconducting coil 1031 and the second superconducting coil 1032.
The superconducting power supply 107 is switchably and electrically connected to the first superconducting coil 1031 and the second superconducting coil 1032 via the current lead 106, so that the first superconducting coil 1031 and the second superconducting coil 1032 are connected in series in the forward direction or in the reverse direction.
Specifically, the first-stage cold head of the refrigerator 105 is connected to the cold screen 102 in a cold-conducting manner, and the second-stage cold head of the refrigerator 105 is connected to the first superconducting coil 1031 and the second superconducting coil 1032 in a cold-conducting manner.
In this embodiment, the evacuation cooling flow of the superconducting magnet is as follows: the air inlet and outlet of the refrigerator 105 is connected with the compressor through a helium hose, the magnetic shielding vacuum cavity 101 is vacuumized by adopting a vacuum pump set, when the vacuum degree is lower than 10 -3 Pa, the vacuum pump set is removed, the refrigerator 105 is opened for cooling, and the first superconducting coil 1031 and the second superconducting coil 1032 are cooled to below 4K.
In this embodiment, the implementation flow of the first station CUSP field of the superconducting magnet is as follows: the superconducting magnet body 1 is rotated to the Y direction perpendicular to the ground, the X direction is parallel to the ground, at this time, the first station is used, the series connection mode of the first superconducting coil 1031 and the second superconducting coil 1032 is adjusted to be reverse series connection, the superconducting power supply 107 is powered up at a constant speed, and the stability is maintained when the working current is reached, as shown in fig. 3, at this time, the crucible 3 in the superconducting magnet body 1 is in the CUSP hook-shaped field.
In this embodiment, the first station vertical field implementation procedure of the superconducting magnet is as follows: the Y direction of the superconducting magnet body 1 is kept perpendicular to the ground, the X direction is parallel to the ground, and at this time, the first station is still used to demagnetize the superconducting magnet, the serial connection mode of the first superconducting coil 1031 and the second superconducting coil 1032 is adjusted to be forward serial connection, the superconducting power supply 107 is powered up at a constant speed, and the operating current is kept stable, as shown in fig. 4, at this time, the crucible 3 in the superconducting magnet body 1 is in a vertical field.
In this embodiment, the second station horizontal field implementation flow of the superconducting magnet is as follows: the first superconducting coil 1031 and the second superconducting coil 1032 are kept in series in the forward direction, the superconducting magnet body 1 is rotated until the Y direction is parallel to the ground, the X direction is perpendicular to the ground, and the second station is provided, as shown in fig. 5, in which the crucible 3 in the superconducting magnet body 1 is in the horizontal field.
Illustratively, the current lead 106 includes: a positive electrode 1061, a negative electrode 1062, a first superconducting lead 10631, a second superconducting lead 10632, a third superconducting lead 10633, and a fourth superconducting lead 10634.
The superconducting power supply 107 is electrically connected to the positive electrode 1061 and the negative electrode 1062, respectively.
The positive electrode 1061 is electrically connected to one end of the first superconducting coil 1031 via the first superconducting wire 10631.
The negative electrode 1062 is switchably and electrically connected to the other end of the first superconducting coil 1031 and two ends of the second superconducting coil 1032 through the second superconducting lead 10632, the third superconducting lead 10633, and the fourth superconducting lead 10634, so that the first superconducting coil 1031 and the second superconducting coil 1032 are connected in series in the forward direction or in the reverse direction.
Specifically, the first superconducting wire 10631, the second superconducting wire 10632, the third superconducting wire 10633, and the fourth superconducting wire 10634 are all high-temperature superconducting wires, and do not generate heat load on the first-stage cold head of the refrigerator 105. The positive electrode 1061 and the negative electrode 1062 are two common guide wires, compared with four common guide wires which are electrically connected conventionally, two common guide wires are omitted, and the primary cold head thermal load of the refrigerator 105 is reduced, so that the cost is reduced.
As shown in fig. 7 and 8, the negative electrode 1062 includes: a cathode upper portion 10621, a cathode lower portion 10622, and an insulating sleeve 10623.
The insulating sleeve 10623 fixedly connects the anode upper portion 10621 and the anode lower portion 10622.
The first superconducting wire 10631 and the second superconducting wire 10632 are electrically connected to both ends of the first superconducting coil 1031, respectively, and the third superconducting wire 10633 and the fourth superconducting wire 10634 are electrically connected to both ends of the second superconducting coil 1032, respectively.
The first superconducting coil 1031 is connected in series with the second superconducting coil 1032 in reverse when the anode upper portion 10621 is electrically connected to the third superconducting lead 10633 and the anode lower portion 10622 is electrically connected to the second superconducting lead 10632 and the fourth superconducting lead 10634.
The first superconducting coil 1031 is connected in series with the second superconducting coil 1032 in a forward direction when the anode upper portion 10621 is electrically connected to the fourth superconducting lead 10634 and the anode lower portion 10622 is electrically connected to the second superconducting lead 10632 and the third superconducting lead 10633.
Illustratively, the positive electrode 1061 and the negative electrode 1062 are both in dynamic sealing connection with the top of the magnetic shielding vacuum chamber 101.
Specifically, the anode upper portion 10621 and the anode lower portion 10622 are each provided with an electrical connection contact, and the switchable electrical connection between the anode upper portion 10621 and the anode lower portion 10622 and the other end of the first superconducting coil 1031 and the two ends of the second superconducting coil 1032 is achieved by horizontally rotating the anode 1062.
As shown in fig. 6, the rotation mechanism 2 illustratively includes: a frame 201, a rotating shaft 203, a bearing block 204, a positioning flange 205 and a positioning pin 206.
The frame 201 is disposed on two sides of the magnetic shielding vacuum chamber 101.
The bearing seat 204 is fixedly arranged on the frame 201.
The bearing block 204 is rotatably connected to the positioning flange 205 via the rotation shaft 203.
The positioning flange 205 is fixedly connected with the magnetic shielding vacuum chamber 101.
The positioning pin 206 is fixedly arranged on the frame 201 and is opposite to the positioning flange 205.
Specifically, the positioning flange 205 is provided with four positioning pin holes in orthogonal distribution, and is used for inserting the positioning pins 206 into the positioning pin holes when the superconducting magnet body 1 rotates to the first station or the second station, so as to realize station locking.
Illustratively, the rotary mechanism 2 further comprises: a reduction gearbox 202.
The reduction gearbox 202 is fixedly arranged on the frame 201 and is rotatably connected with the rotating shaft 203.
Specifically, the reduction gearbox 202 may have the effect of saving labor and reducing speed, and in this embodiment, the reduction gearbox 202 is manually rotated by using a worm gear, and in other possible embodiments, rotation may be driven by using a gear, rotation driven by a motor, or the like.
Illustratively, the inner cylinder of the magnetic shielding vacuum cavity 101 is two cylinders with orthogonal cross shapes and equal diameters, the inside is a vacuum sealing environment, and the outer wall is made of magnetic permeability materials.
Illustratively, the tie rod includes: an axial tie rod 1041 and a radial tie rod 1042.
The axial tie rod 1041 and the radial tie rod 1042 are used to fix the cold shield 102, the first superconducting coil 1031, and the second superconducting coil 1032 in the magnetic shielding vacuum chamber 101 in the axial direction and the radial direction, respectively.
In the present embodiment, the axial tie rod 1041 and the radial tie rod 1042 are provided with four on both the inner upper side circumference and the inner lower side circumference of the magnetic shield vacuum chamber 101. In other possible embodiments, diagonal ties and other numbers of ties may also be employed.
According to the embodiment of the invention, the superconducting magnet main body is rotated on the positive vertical plane through the rotating mechanism, and the first superconducting coil and the second superconducting coil are connected in series in a switchable manner, so that three magnetic field types of the superconducting magnet are switched, and the crystal pulling production efficiency is improved.
Through negative pole and magnetism shielding vacuum chamber top dynamic seal connection, rotatory negative pole can realize with first superconducting coil, second superconducting coil's electric connection switch, easy operation, the reliability is high.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A switchable field-type magnetically controlled crystal pulling superconducting magnet, comprising: a superconducting magnet body and a rotating mechanism;
the rotating mechanism is used for supporting the superconducting magnet main body and enabling the superconducting magnet main body to rotate on a front vertical plane;
The superconducting magnet body includes: the magnetic shielding vacuum chamber, the cold shield, the first superconducting coil, the second superconducting coil, the pull rod, the refrigerator, the current lead and the superconducting power supply;
the cold screen is arranged inside the magnetic shielding vacuum cavity;
The first superconducting coil and the second superconducting coil are two relatively distributed annular coils and are arranged in the cold screen;
The pull rod is used for respectively fixing the cold screen, the first superconducting coil and the second superconducting coil in the magnetic shielding vacuum cavity;
the refrigerator is fixedly arranged at the top of the magnetic shielding vacuum cavity and is connected with the cold shield, the first superconducting coil and the second superconducting coil in a cold conduction manner;
the superconducting power supply is in switchable electrical connection with the first superconducting coil and the second superconducting coil through the current lead, so that the first superconducting coil and the second superconducting coil are connected in forward series or reverse series;
The current lead includes: a positive electrode, a negative electrode, a first superconducting lead, a second superconducting lead, a third superconducting lead, and a fourth superconducting lead;
the superconducting power supply is electrically connected with the positive electrode and the negative electrode respectively;
The positive electrode is electrically connected with one end of the first superconducting coil through the first superconducting lead;
the negative electrode is in switchable electrical connection with the other end of the first superconducting coil and the two ends of the second superconducting coil through the second superconducting lead, the third superconducting lead and the fourth superconducting lead, so that the first superconducting coil and the second superconducting coil are in forward series connection or reverse series connection;
the negative electrode includes: the upper part of the negative electrode, the lower part of the negative electrode and the insulating sleeve;
The insulating sleeve fixedly connects the upper part of the negative electrode with the lower part of the negative electrode;
The first superconducting lead and the second superconducting lead are respectively and electrically connected with two ends of the first superconducting coil, and the third superconducting lead and the fourth superconducting lead are respectively and electrically connected with two ends of the second superconducting coil;
when the upper part of the negative electrode is electrically connected with the third superconducting lead and the lower part of the negative electrode is electrically connected with the second superconducting lead and the fourth superconducting lead, the first superconducting coil and the second superconducting coil are in reverse series connection;
When the upper part of the negative electrode is electrically connected with the fourth superconducting lead and the lower part of the negative electrode is electrically connected with the second superconducting lead and the third superconducting lead, the first superconducting coil and the second superconducting coil are connected in series in the forward direction;
the rotation mechanism includes: the device comprises a frame, a rotating shaft, a bearing seat, a positioning flange and a positioning pin;
the frame is arranged at two sides of the magnetic shielding vacuum cavity;
The bearing seat is fixedly arranged on the frame;
The bearing seat is rotationally connected with the positioning flange through the rotating shaft;
The positioning flange is fixedly connected with the magnetic shielding vacuum cavity;
the locating pin is fixedly arranged on the frame and is opposite to the locating flange.
2. The switchable field type magnetic control crystal pulling superconducting magnet according to claim 1, wherein the positive electrode and the negative electrode are in dynamic sealing connection with the top of the magnetic shielding vacuum cavity.
3. A switchable field magnetically controlled pull superconducting magnet according to claim 1, wherein the rotary mechanism further comprises: a reduction gearbox;
The reduction gearbox is fixedly arranged on the frame and is rotationally connected with the rotating shaft.
4. The switchable field-type magnetic control crystal pulling superconducting magnet according to claim 1, wherein the inner cylinder of the magnetic shielding vacuum cavity is two cylinders which are orthogonal in cross and equal in diameter, the inside is a vacuum sealing environment, and the outer wall is made of a magnetic permeability material.
5. A switchable field-type magnetically controlled pullsuperconducting magnet as claimed in claim 1 wherein the pullrod comprises: an axial pull rod and a radial pull rod;
The axial pull rod and the radial pull rod are respectively used for fixing the cold screen, the first superconducting coil and the second superconducting coil in the magnetic shielding vacuum cavity from the axial direction and the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410389842.4A CN117995505B (en) | 2024-04-02 | 2024-04-02 | Switchable field-shaped magnetic control crystal pulling superconducting magnet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410389842.4A CN117995505B (en) | 2024-04-02 | 2024-04-02 | Switchable field-shaped magnetic control crystal pulling superconducting magnet |
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| CN117995505A CN117995505A (en) | 2024-05-07 |
| CN117995505B true CN117995505B (en) | 2024-06-07 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11322486A (en) * | 1998-05-13 | 1999-11-24 | Mitsubishi Electric Corp | Equipment for magnetic field-applied single crystal production |
| JP2000114028A (en) * | 1998-10-08 | 2000-04-21 | Sumitomo Heavy Ind Ltd | Refrigerator-cooled superconducting magnet device for single-crystal pulling equipment |
| CN210535437U (en) * | 2019-12-19 | 2020-05-15 | 西部超导材料科技股份有限公司 | Conduction cooling magnetic control single crystal pulling superconducting magnet device |
| CN114927305A (en) * | 2022-05-19 | 2022-08-19 | 西部超导材料科技股份有限公司 | Magnetic control single crystal pulling superconducting magnet and equipment |
| CN217719177U (en) * | 2022-05-19 | 2022-11-01 | 西部超导材料科技股份有限公司 | Magnetic control single crystal pulling superconducting magnet and equipment |
| CN116798724A (en) * | 2023-07-26 | 2023-09-22 | 西安聚能超导磁体科技有限公司 | Superconducting magnet, magnetic control single crystal pulling equipment and control method |
| CN116913641A (en) * | 2023-07-31 | 2023-10-20 | 嘉兴科迈超导科技有限公司 | Liquid helium-free superconducting magnet for magnetic control Czochralski single crystal and rapid cooling method thereof |
| CN117524692A (en) * | 2023-10-30 | 2024-02-06 | 西安聚能超导磁体科技有限公司 | Control circuit, superconducting magnet and magnetic control single crystal pulling equipment |
-
2024
- 2024-04-02 CN CN202410389842.4A patent/CN117995505B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11322486A (en) * | 1998-05-13 | 1999-11-24 | Mitsubishi Electric Corp | Equipment for magnetic field-applied single crystal production |
| JP2000114028A (en) * | 1998-10-08 | 2000-04-21 | Sumitomo Heavy Ind Ltd | Refrigerator-cooled superconducting magnet device for single-crystal pulling equipment |
| CN210535437U (en) * | 2019-12-19 | 2020-05-15 | 西部超导材料科技股份有限公司 | Conduction cooling magnetic control single crystal pulling superconducting magnet device |
| CN114927305A (en) * | 2022-05-19 | 2022-08-19 | 西部超导材料科技股份有限公司 | Magnetic control single crystal pulling superconducting magnet and equipment |
| CN217719177U (en) * | 2022-05-19 | 2022-11-01 | 西部超导材料科技股份有限公司 | Magnetic control single crystal pulling superconducting magnet and equipment |
| CN116798724A (en) * | 2023-07-26 | 2023-09-22 | 西安聚能超导磁体科技有限公司 | Superconducting magnet, magnetic control single crystal pulling equipment and control method |
| CN116913641A (en) * | 2023-07-31 | 2023-10-20 | 嘉兴科迈超导科技有限公司 | Liquid helium-free superconducting magnet for magnetic control Czochralski single crystal and rapid cooling method thereof |
| CN117524692A (en) * | 2023-10-30 | 2024-02-06 | 西安聚能超导磁体科技有限公司 | Control circuit, superconducting magnet and magnetic control single crystal pulling equipment |
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| Publication number | Publication date |
|---|---|
| CN117995505A (en) | 2024-05-07 |
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