JP4220175B2 - Superconducting coil and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a superconducting coil manufactured by winding a superconducting wire around a deformed winding having a winding shape different from a cylindrical shape, and a method for manufacturing the same.
[0002]
[Prior art]
In recent years, with the improvement of the critical current density of high-temperature superconducting wires, superconducting magnets for silicon single crystal pulling devices, magnets for magnetic separation, hybrid magnets for high magnetic fields, etc. have come to practical use.
[0003]
However, there are significant technical problems in coiling the high-temperature superconducting wire.
[0004]
That is, the Bi-based superconductor used for the high-temperature superconducting wire is very fragile because it is a ceramic material.
[0005]
And when distortion more than an allowable value is added to a high temperature superconducting wire, a critical current value and n value will fall rapidly.
[0006]
At present, the allowable tensile stress is about 60 to 100 MPa, and the allowable bending strain is about 0.3%.
[0007]
In addition, the Bi2223 silver sheath wire has a very thin wire thickness of about 0.2 mm and is very difficult to handle.
[0008]
Therefore, in order to coil such a superconducting wire, for example, a winding machine as disclosed in “Japanese Patent Laid-Open No. 2001-257113” has been developed, and a high temperature superconducting coil for a silicon single crystal pulling apparatus has been completed. Yes.
[0009]
Most of the high-temperature superconducting coils so far are coils in which the winding form is cylindrical and the high-temperature superconducting wire is wound thereon.
[0010]
In the case of a cylindrical coil, if winding is performed while applying a certain tension, a constant σr (pressing stress in the coil radial direction) is applied to the wound superconducting wire regardless of the winding phase. It is possible to perform uniform coil winding.
[0011]
On the other hand, in the case of a deformed coil having a non-cylindrical winding shape, that is, for example, a racetrack-shaped coil having both a curved portion and a straight portion, a uniform σr similar to that of the cylindrical coil is present in the curved portion. However, in the straight line portion, σr is almost zero, rather, a force acts in the direction in which the superconducting wire tends to rise, and winding of the straight line portion is very difficult.
[0012]
If the winding is performed in such a state, not only the dimensional accuracy cannot be maintained, but there is a possibility of causing impregnation failure and, in turn, deterioration of superconducting characteristics, which is not preferable.
[0013]
[Problems to be solved by the invention]
Therefore, it is necessary to devise the straight part winding so that the straight part has a shape as designed.
[0014]
However, as described above, when an external force is applied to a very thin and fragile superconducting wire, the superconducting characteristics deteriorate.
[0015]
Therefore, it is necessary to produce a superconducting coil by winding a straight portion by means that only applies a strain smaller than the allowable strain of the superconducting wire. Recently, there has been a strong demand for the realization of such means. Yes.
[0016]
The problem as described above is applicable not only to high-temperature superconducting wires but also to conventional metallic superconducting wires.
[0017]
An object of the present invention is to provide a superconducting coil capable of manufacturing a superconducting coil having a deformed shape with extremely high reliability, compactness, and high performance, and a manufacturing method thereof.
[0018]
[Means for Solving the Problems]
To achieve the above objective, Book In the invention, a superconducting coil is manufactured by winding a superconducting wire. In the method In a state where a certain tension is applied to the superconducting wire. Racetrack shape consisting of two semicircular parts and two straight parts connected to them Have The inner radius of the two semicircular portions is set to be equal to or larger than the allowable bending radius of the superconducting wire. In a special form In the two semicircular parts of the irregularly wound type, the superconducting wire is wound around the center of each semicircle, and the rotation center axis moves from one semicircle part to the other semicircle part. Is With pressing jig Above Superconducting wire In the straight part of the irregular winding type Winding while pressing.
[0042]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, with a constant tension applied to the superconducting wire, a superconducting wire is wound while being wound using a pressing jig devised so that stress or strain exceeding the allowable value is not applied to the superconducting wire. A deformed superconducting coil is manufactured by performing winding of the straight portion by pressing the winding mold onto a deformed winding mold having a shape other than a cylindrical shape.
[0043]
By taking the above-described means, it becomes possible to manufacture a superconducting coil having an irregular shape such as a racetrack shape without deteriorating a fragile superconducting wire.
[0044]
Hereinafter, embodiments of the present invention based on the above-described concept will be described in detail with reference to the drawings.
[0045]
(First embodiment)
FIG. 1 is a schematic diagram showing an example of the overall configuration for realizing a method of manufacturing a superconducting coil according to the present embodiment, that is, a method of manufacturing a coil winding into a deformed shape of a superconducting wire.
[0046]
As shown in FIG. 1, a superconducting coil manufacturing system includes an irregular coil winding 100 that is an irregular winding, an irregular coil winding rotary winder 101, an irregular coil winding slide 102, and a wire feeder 103. And a constant tension tensioner 104.
[0047]
In addition, a winding control unit 105 that controls the winding rotation speed of the irregular coil winding rotary winding machine 101, the winding tension, the sliding speed of the irregular coil winding slide machine 102, the wire rod sending machine 103, and the irregular coil. A tuning controller 106 that synchronizes the speed of the winding rotary winding machine 101 is provided as a system controller.
[0048]
That is, the deformed coil winding mold 100 that winds the superconducting wire 1 as a coil is loaded on the deformed coil winding slide machine 102, so that the deformed coil winding mold 100 is also moved according to the sliding motion of the deformed coil winding slide machine 102. It is designed to slide.
[0049]
The deformed coil winding slide machine 102 is loaded on the deformed coil winding rotary winder 101 so that the deformed coil winding mold 100 and the deformed coil winding slide machine 102 are deformed coil winding rotary winder. According to the rotational movement of 101, it rotates.
[0050]
Furthermore, the superconducting wire 1 is sent out from the wire feeder 103 and wound around the deformed coil former 100. A constant tension tensioner 104 is disposed at a substantially intermediate point between the wire feeder 103 and the deformed coil former 100. By doing so, the superconducting wire 1 is wound around the deformed coil former 100 while applying a constant tension via the constant tension tensioner 104, and the superconducting wire 1 can maintain a constant tension.
[0051]
In addition, as the deformed coil winding mold 100, the winding mold has a shape other than the cylindrical shape.
[0052]
Although not shown in FIG. 1, a pressing roller which is a pressing jig for pressing the superconducting wire 1 against the deformed coil former 100 when the superconducting wire 1 is wound around the deformed coil former 100. Is provided in the vicinity of the deformed coil former 100.
[0053]
On the other hand, control of the speed, operation / stop and stroke of the slide motion of the irregular coil winding slide machine 102, control of the speed, operation / stop and rotation angle of the rotational motion of the irregular coil winding rotary winder 101, The position control of the tension tensioner 104 is controlled by the winding controller 105 that is electrically connected.
[0054]
In addition, the tuning control 106 that is electrically connected controls the winding tuning and system control of the wire rod delivery machine 103 and the deformed coil winding rotary winding machine 101.
[0055]
Next, a method for manufacturing a superconducting coil according to the present embodiment in the system configuration as described above will be described.
[0056]
In FIG. 1, the deformed coil winding mold 100 also slides according to the sliding motion of the deformed coil winding slide machine 102.
[0057]
The deformed coil winding mold 100 and the deformed coil winding slide machine 102 rotate according to the rotating motion of the deformed coil winding rotary winder 101.
[0058]
The superconducting wire 1 is sent out from the wire sending machine 103 and wound around the deformed coil former 100.
[0059]
In this case, a constant-tension tensioner 104 is disposed between the wire feeder 103 and the deformed coil former 100, and a pressing coil (not shown) is provided near the deformed coil former 100 having a shape other than a cylindrical shape. By arranging the pressing roller as a jig, the superconducting wire 1 is in a state in which a constant tension is applied by the constant tension tensioner 104 and the deformed coil is pressed against the deformed coil winding mold 100 by the pressing roller. The superconducting wire 1 is wound around the winding mold 100 and can be wound while maintaining a constant tension.
[0060]
As a result, it is possible to manufacture a superconducting coil having a deformed shape that is extremely reliable, compact, and high in performance without deteriorating the fragile superconducting wire 1.
[0061]
In the above description, the winding controller 105 controls the speed, operation / stop, and stroke of the slide motion of the deformed coil winding slide machine 102, and the rotational speed and operation of the deformed coil winding rotary winder 101. Control of stop / rotation angle, position control of the constant tension tensioner 104, etc. are performed, and the tuning controller 106 performs winding tuning and system control of the wire feeder 103 and the deformed coil winding rotary winding machine 101. Done.
[0062]
As described above, in this embodiment, when the superconducting wire 1 is wound to manufacture a superconducting coil, the winding mold has a shape other than the cylindrical shape in a state where a certain tension is applied to the superconducting wire 1. Since the superconducting wire 1 is wound around the deformed coil winding 100 while pressing the superconducting wire 1 with a pressing roller which is a pressing jig, the fragile superconducting wire 1 is not deteriorated and is extremely reliable. It is possible to manufacture a superconducting coil having a deformed shape that is compact and has high performance.
[0063]
(Second Embodiment)
FIG. 2 is a schematic diagram showing a configuration example of a slide stroke for realizing a method of manufacturing a superconducting coil according to the present embodiment, that is, a method of manufacturing a coil winding into a deformed shape of a superconducting wire. Are denoted by the same reference numerals, and the description thereof is omitted. Only different portions will be described here.
[0064]
That is, the superconducting coil manufacturing method according to the present embodiment is the same as the superconducting coil manufacturing method according to the first embodiment described above, as shown in FIG. It is configured by a racetrack-shaped rigid frame composed of a portion and two straight portions connected thereto, and is loaded on the deformed coil winding slide machine 102.
[0065]
Here, the modified coil winding slide machine 102 is configured to slide (stroke) the range “S” from the center of one semicircular portion of the racetrack-shaped deformable coil winding die 100 to the center of the other semicircular portion. The position is detected at the stage where the stroke reaches the center of the semicircular portion, the slide motion is stopped, and control is performed so as to shift to the rotational motion.
[0066]
In the method of manufacturing a superconducting coil according to the present embodiment as described above, the shape of the deformed coil former 100 is a racetrack shape including two semicircular portions and two straight portions, so that the superconducting wire 1 Since the center of rotation is always the center of the semicircular portion during the winding rotation, it is possible to perform winding evenly on the circumference.
[0067]
Thereby, the racetrack-shaped superconducting coil can be manufactured without deteriorating the fragile superconducting wire 1.
[0068]
As described above, in the present embodiment, the winding can be performed uniformly on the circumference, and the racetrack-shaped superconducting coil can be manufactured without deteriorating the fragile superconducting wire 1. .
[0069]
(Third embodiment)
FIG. 3 is a schematic diagram showing a configuration example of a winding cross-sectional flange for realizing a method of manufacturing a superconducting coil according to the present embodiment, that is, a method of manufacturing a coil winding into a deformed shape of a superconducting wire. The same parts as those in FIG. 2 are denoted by the same reference numerals, and the description thereof is omitted. Only different parts will be described here.
[0070]
That is, the superconducting coil manufacturing method according to the present embodiment is the same as the superconducting coil manufacturing method according to the above-described second embodiment, as shown in FIG. The dimension is equal to or larger than the allowable bending radius of the superconducting wire 1.
[0071]
A winding flange 107 is attached so as to sandwich the width of the superconducting wire 1.
[0072]
In the superconducting coil manufacturing method according to the present embodiment as described above, the inner radius of the semicircular portion of the deformed coil former 100 is set to be equal to or larger than the allowable bending radius of the superconducting wire 1 and is configured to be rigid. Even when the superconducting wire 1 is wound, it is possible to perform the winding operation without bending it below the allowable bending radius.
[0073]
Furthermore, as shown in FIG. 3, by attaching the winding flange 107 so as to sandwich the width of the superconducting wire 1, the superconducting wire 1 has a bending radius R equal to or greater than the allowable bending radius without detaching from the deformed coil winding 100. Can be maintained.
[0074]
Thereby, the racetrack-shaped superconducting coil can be manufactured without deteriorating the fragile superconducting wire 1.
[0075]
As described above, in the present embodiment, even when the superconducting wire 1 is wound, the winding operation can be performed without bending it to an allowable bending radius or less, and the superconducting wire 1 is detached from the deformed coil winding mold 100. Therefore, it is possible to maintain a bending radius R equal to or greater than the allowable bending radius, and it is possible to manufacture a racetrack-shaped superconducting coil without deteriorating the fragile superconducting wire 1.
[0076]
(Fourth embodiment)
The superconducting coil manufacturing method according to the present embodiment is the same as the superconducting coil manufacturing method according to the second embodiment described above, except that the semicircular portion of the racetrack-shaped odd-shaped coil winding mold 100 is connected to the straight circular portion. The straight portion of the deformed coil winding mold 100 has a convex portion having a gentle curvature larger than the curvature of the inner radius of the semicircular portion.
[0077]
In the method of manufacturing a superconducting coil according to the present embodiment as described above, the straight portion of the deformed coil winding mold 100 has a convex portion having a gentle curvature larger than the curvature of the inner radius of the semicircular portion. Thus, a constant tension is applied to the superconducting wire 1 even in a straight portion, and the superconducting wire 1 is not lifted and fixed, thereby improving the tightness of the superconducting wire 1 to the deformed coil former 100. It becomes possible.
[0078]
Furthermore, the stress applied to the superconducting wire 1 along with the electromagnetic force can be reduced as much as possible.
[0079]
As described above, in the present embodiment, it is possible to improve the tightness of the superconducting wire 1 to the deformed coil winding 100, and to further reduce the stress applied to the superconducting wire 1 due to electromagnetic force as much as possible. Thus, a racetrack-shaped superconducting coil can be manufactured without deteriorating the fragile superconducting wire 1.
[0080]
(Fifth embodiment)
The superconducting coil manufacturing method according to this embodiment is a superconducting coil manufacturing method according to any one of the second to fourth embodiments described above. As shown in FIG. When sliding from one semicircular part to the other semicircular part, it has a sensor mechanism 108 that detects the center of the semicircular part, and when the sensor mechanism 108 detects, the winding controller 105 detects the deformed coil winding slide. The machine 102 is stopped at the position, and the rotational movement of the next process is started.
[0081]
Further, when the deformed coil winding slide machine 102 slides on the linear portion, as described in the fourth embodiment, the pressing roller 109 which is a pressing jig is inserted into the winding flange 107 from above. The weight of the push roller 109 is loaded on the superconducting wire 1.
[0082]
In the method for manufacturing a superconducting coil according to the present embodiment as described above, the superconducting wire 1 is wound around the center of each semicircle at the two semicircular portions of the deformed coil former 100, and one semicircle is wound. When the central axis of rotation moves from one part to the other semicircular part, the superconducting wire 1 is wound while being pressed against the deformed coil former 100, so that the pressing roller 109 is inserted into the former flange 107 from above. , And the superconducting wire 1 is loaded onto the superconducting wire 1 to cause the superconducting wire 1 to act as a pressing force on the linear portion of the deformed coil winding 100, thereby closely contacting the superconducting wire 1 to the deformed coil winding 100. Fixability can be further improved.
[0083]
As described above, in the present embodiment, the tightness fixing property of the superconducting wire 1 to the deformed coil winding mold 100 can be further improved as described above, and the racetrack shape can be improved without deteriorating the fragile superconducting wire 1. A superconducting coil can be manufactured.
[0084]
(Sixth embodiment)
FIG. 4 is a schematic diagram showing a configuration example of a push roller and a superconducting wire for realizing a superconducting coil manufacturing method according to the present embodiment, that is, a method of manufacturing a coil winding into a deformed shape of a superconducting wire. The same parts as those in FIG. 3 are denoted by the same reference numerals, and the description thereof is omitted. Only different parts will be described here.
[0085]
That is, the superconducting coil manufacturing method according to the present embodiment is the same as the superconducting coil manufacturing method according to any one of the first to fifth embodiments described above, as shown in FIG. A superconducting wire 1 having a flat shape is used to make a pancake winding configuration.
[0086]
In the method of manufacturing a superconducting coil according to the present embodiment as described above, the tape-shaped superconducting wire 1 is formed by pancake winding (multi-layer winding) with the deformed coil winding mold 100 as a core, thereby increasing the thickness. It becomes possible to construct a pancake-like superconducting coil corresponding to the width of the superconducting wire 1.
[0087]
Thereby, the distortion added to the superconducting wire 1 can be reduced, and deterioration of the superconducting wire 1 can be prevented.
[0088]
As described above, in this embodiment, distortion applied to the superconducting wire 1 can be reduced, and a superconducting coil having an irregular shape such as a racetrack shape can be manufactured without deteriorating the fragile superconducting wire 1. It becomes possible.
[0089]
(Seventh embodiment)
FIG. 5 is a schematic diagram showing a configuration example for realizing a method of manufacturing a superconducting coil according to the present embodiment, that is, a method of manufacturing a coil winding into a deformed shape of a plurality of superconducting wires. Are denoted by the same reference numerals and description thereof is omitted, and only different parts are described here.
[0090]
That is, the superconducting coil manufacturing method according to the present embodiment is the same as the superconducting coil manufacturing method according to the sixth embodiment described above, as shown in FIG. 5, the wire feeder 103 and the constant tension tensioner 104 for the number of layer turns. The tape-shaped superconducting wire 1 is wound in a plurality of layers.
[0091]
In the superconducting coil manufacturing method according to the present embodiment as described above, the tape-shaped superconducting wire 1 is wound as shown in FIG. 5 by winding a plurality of layers of the tape-shaped superconducting wire 1. Layer winding can be performed in a state where the number of sheets to be wound is stacked.
[0092]
In this case, the deformed coil winding rotary winding machine 101 is one unit, but all the wire feeders 103 and constant tension tensioners 104 are provided with the deformed coil winding rotary winding machine 101 and the winding controller 105. In this way, a plurality of superconducting wires 1 can be wound in synchronism with no problem while maintaining a constant tension, just as in the case of a single tape-shaped superconducting wire 1.
[0093]
Thereby, the energization current capacity of the superconducting coil can be increased.
[0094]
As described above, in the present embodiment, the current carrying capacity of the superconducting coil can be increased, and a superconducting coil having an irregular shape such as a racetrack shape can be manufactured without deteriorating the fragile superconducting wire 1. It becomes possible.
[0095]
(Eighth embodiment)
The superconducting coil manufacturing method according to the present embodiment is a tape-like method when winding the superconducting wire 1 as shown in FIG. 5 in the superconducting coil manufacturing method according to the sixth or seventh embodiment described above. The insulating material (hereinafter referred to as insulating tape) 2 is wound together.
[0096]
In the superconducting coil manufacturing method according to the present embodiment as described above, when the superconducting wire 1 is wound, the insulating tape 2 is wound together, that is, the uppermost tape of the superconducting wire 1 arranged in a plurality of sheets is insulated. By forming the tape 2 and winding the insulating tape 2 simultaneously, it is possible to realize interlayer insulation by forming an interlayer insulating layer when a plurality of superconducting wires 1 are wound in layers. It becomes.
[0097]
As described above, in this embodiment, an interlayer insulating layer can be formed to realize interlayer insulation, and a superconducting coil having a deformed shape such as a racetrack shape can be manufactured without deteriorating the fragile superconducting wire 1. It becomes possible to do.
[0098]
(Ninth embodiment)
FIG. 6 is a schematic diagram showing a configuration example of an attack angle for realizing a method of manufacturing a superconducting coil according to the present embodiment, that is, a method of manufacturing a coil winding into a deformed shape of a superconducting wire. The same reference numerals are given to the same parts and the description thereof is omitted, and only different parts will be described here.
[0099]
That is, the superconducting coil manufacturing method according to this embodiment is the same as the superconducting coil manufacturing method according to any one of the first to eighth embodiments described above, as shown in FIG. When the superconducting wire 1 is wound by disposing the guide roller 110 on the incident side of the superconducting wire 1, a pressing roller that is a pressing jig with an attack angle θ that is equal to or larger than the tangential angle of the deformed coil former 100. At 109, the superconducting wire 1 is wound while being pressed against the deformed coil former 100.
[0100]
In the method of manufacturing a superconducting coil according to the present embodiment as described above, when the superconducting wire 1 is wound, the guide roller 110 is used for the pressing treatment with an attack angle θ equal to or larger than the tangential angle of the deformed coil former 100. Since the superconducting wire 1 is wound while being pressed against the deformed coil winding mold 100 by the pressing roller 109 which is a tool, the pressing force of the pressing roller 109 is effective particularly when winding the racetrack-shaped straight portion. Therefore, it is possible to suppress a decrease in tension due to friction between the superconducting wire 1 before winding and the outer surface of the coil after winding.
[0101]
Further, by controlling the rotation angle of the deformed coil winding rotary winding machine 101 and the slide stroke of the deformed coil winding slide machine 102, the incident angle of the superconducting wire 1 incident on the deformed coil winding mold 100 is obtained. The constant attack angle θ can be realized.
[0102]
As described above, in this embodiment, it is possible to suppress a decrease in tension due to friction between the superconducting wire 1 before winding and the outer surface of the coil after winding, and deteriorate the fragile superconducting wire 1. Therefore, a superconducting coil having an irregular shape such as a racetrack shape can be manufactured.
[0103]
(Tenth embodiment)
The superconducting coil manufacturing method according to this embodiment is a superconducting coil manufacturing method according to any one of the first to ninth embodiments described above, as shown in FIG. In addition, the pressing roller 109 and the weight 111 are connected with a counterweight so that the pressing force of the superconducting wire 1 against the deformed coil former 100 can be controlled by the balance between the weight of the pressing roller 109 and the weight of the weight 111. ing.
[0104]
In the superconducting coil manufacturing method according to the present embodiment as described above, the pressing roller 109 capable of controlling the pressing force of the superconducting wire 1 against the deformed coil former 100 is used as a pressing jig. A constant pressing force can be always applied to the superconducting wire 1 by the balance between the weight of the pressing roller 109 and the weight of the weight 111, and an appropriate pressing force can be realized by controlling the weight of the weight 111. Is possible.
[0105]
As described above, in the present embodiment, a constant pressing force can always be applied to the superconducting wire 1 and an appropriate pressing force can be realized without deteriorating the fragile superconducting wire 1. It becomes possible to manufacture a superconducting coil having an irregular shape such as a racetrack shape.
[0106]
(Eleventh embodiment)
The superconducting coil manufacturing method according to the present embodiment is the same as the superconducting coil manufacturing method according to the tenth embodiment described above, as shown in FIG. The allowable bending radius of the wire 1 is set to be larger than the allowable bending radius.
[0107]
In the superconducting coil manufacturing method according to the present embodiment as described above, the radius of the pressing roller 109 is set to be larger than the allowable bending radius of the superconducting wire 1 so that the above-described attack angle θ should be large. Even if it becomes, it becomes possible to exclude the danger that the superconducting wire 1 is bent at an allowable bending radius or less during winding.
[0108]
Thereby, deterioration of the superconducting wire 1 can be prevented.
[0109]
As described above, in the present embodiment, even if the attack angle θ increases, the risk of the superconducting wire 1 being bent at an allowable bending radius or less during winding can be eliminated, and the fragile superconducting wire 1 can be removed. Without deteriorating, it becomes possible to manufacture a superconducting coil having an irregular shape such as a racetrack shape.
[0110]
(Twelfth embodiment)
In the present embodiment, the superconducting coil is manufactured by the method of manufacturing a superconducting coil according to any one of the first to eleventh embodiments described above.
[0111]
Since the superconducting coil is manufactured by the method for manufacturing a superconducting coil as described above, the fragile superconducting wire 1 is not deteriorated, and is highly reliable, compact, and has a high performance. A superconducting coil can be realized.
[0112]
(Other embodiments)
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation.
For example, in each of the above-described embodiments, the deformed coil winding mold 100 has a racetrack shape including two semicircular portions and two straight portions connected to them. Any other shape than the racetrack shape may be used as long as it is a deformed coil winding shape having a shape other than the cylindrical shape.
[0113]
In addition, the embodiments may be combined as appropriate as possible, and in that case, the combined effects can be obtained.
Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent requirements.
For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem (at least one) described in the column of the problem to be solved by the invention can be solved, and the effect of the invention can be solved. When (at least one of) the effects described in the column can be obtained, a configuration in which this configuration requirement is deleted can be extracted as an invention.
[0114]
【The invention's effect】
As described above, according to the superconducting coil and the manufacturing method thereof according to the present invention, when the superconducting coil is wound by winding the superconducting wire, the winding is cylindrical in a state where a certain tension is applied to the superconducting wire. Since a superconducting wire is pressed onto a deformed winding having a shape other than the shape while pressing a superconducting wire with a pressing jig, a superconducting coil with a deformed shape that is extremely reliable, compact, and high in performance can be obtained. It becomes possible to produce.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a first embodiment for realizing a method of manufacturing a superconducting coil according to the present invention.
FIG. 2 is a schematic view showing a second embodiment for realizing the method of manufacturing a superconducting coil according to the present invention.
FIG. 3 is a schematic diagram showing a third embodiment for realizing a method of manufacturing a superconducting coil according to the present invention.
FIG. 4 is a schematic diagram showing a sixth embodiment for realizing the method of manufacturing a superconducting coil according to the present invention.
FIG. 5 is a schematic view showing a seventh embodiment for realizing the method of manufacturing a superconducting coil according to the present invention.
FIG. 6 is a schematic view showing a ninth embodiment for realizing the method of manufacturing a superconducting coil according to the present invention.
[Explanation of symbols]
1 ... Superconducting wire
2… Insulating tape
100 ... irregular coil winding type
101 ... odd-shaped coil winding rotary winding machine
102 ... Modified coil winding slide machine
103 ... Wire rod sending machine
104 ... Constant tension tensioner
105 ... Winding control machine
106 ... Tuning controller
107-winding flange
108 ... Sensor mechanism
109 ... push roller
110 ... Guide roller
111 ... Weight.

Claims (4)

In a method of manufacturing a superconducting coil by winding a superconducting wire,
While applying a constant tension to the superconducting wire, have a racetrack shape consisting of two semicircles portion and two straight portions connected thereto, the inner radius of the two semi-circular portions of the superconducting wire In the two-circle part of the irregularly wound mold, the superconducting wire is wound around the center of each semicircle as a rotation center in the irregularly shaped coil that is set to be equal to or larger than the allowable bending radius ,
When the rotation center axis moves from one semicircular part to the other semicircular part, the superconducting wire is wound while being pressed against the straight part of the irregularly wound mold with a pressing jig. A method of manufacturing a superconducting coil. In the manufacturing method of the superconducting coil according to claim 1,
When the center axis of rotation moves from one semicircular part to the other semicircular part, the incident angle of the superconducting wire incident on the deformed winding mold is set to the pressing angle with an attack angle greater than the tangential angle of the deformed winding mold A method of manufacturing a superconducting coil, wherein the superconducting wire is wound while pressing the superconducting wire against the straight portion of the irregularly wound mold with a jig for use. In the method of manufacturing a superconducting coil according to claim 1 or 2 ,
Tape-shaped superconducting wire is used as the superconducting wire, and a plurality of layers of the tape-shaped superconducting wire are wound as a pancake winding configuration.
Characterized in that said superconducting wire mounting flanges to sandwich the width, from above into the flange, the front Symbol controllable roller pressing force of the superconducting wire against irregular former was so dropped as the pressing jig A method of manufacturing a superconducting coil. A superconducting coil manufactured by the method of manufacturing a superconducting coil according to any one of claims 1 to 3 .

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