JPH06333437A - Superconductor and manufacture thereof and device therefor - Google Patents

Abstract

PURPOSE:To obtain a superconductor provided with a detecting means having a high sensitivity and a high mechanical strength, which can detect the fine temperature rise immediately before the quench securely. CONSTITUTION:Both surfaces or one surface of a superconductor 3 is coated with the organic insulating solvent 6, and fed with carbon coated insulating material 22, 23, which are respectively formed of a carbon thin film body 10 and an organic insulating film 9, to a bonding roller 7, and they are adhered to each other to form a carbon thin film coated superconductor. A temperature sensor is formed at a desired position of the carbon coated superconductor through a leader. A temperature detecting element having the excellent flexibility and the excellent mechanical strength can be thereby structured at a desired position with a desired space, and the winding work is facilitated and the working efficiency is improved, and since a very thin insulating film can be formed between the superconductor and the carbon thin film, a temperature detecting element having a high detecting accuracy is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superconducting conductor having a quench detecting means, and more particularly to a superconducting means having a detecting means for detecting a minute temperature rise just before the superconducting state is changed to the normal conducting state due to thermal disturbance or the like and a position where the temperature rises. The present invention relates to a conductor and a manufacturing method thereof.

[0002]

2. Description of the Related Art Superconducting magnets are generally cooled by a cooling medium such as liquid helium. However, when a magnetic field is generated by energizing, a part of the superconducting magnet is not affected by abnormalities such as movement of the conductor and damage of the impregnated material. When they occur, they become a thermal disturbance, and a part of the superconducting conductor rises in temperature, causing a normal conduction transition, that is, quenching. When a quench occurs, a large amount of heat generated from the winding conductor may cause the refrigerant to boil, which may lead to a major accident such as melting of the winding conductor.Therefore, it is an important issue to prevent this quench in superconducting magnets. is there.

As a conventional countermeasure against quenching, there is a method in which a voltage terminal wire is provided on a superconducting conductor serving as a winding conductor to cut off an energizing current with a voltage generated at the time of transition to normal conduction. This is for protecting the superconducting coil. It was not based on the viewpoint of, but did not necessarily predict or actively suppress the quench. There is also a method to detect the quench by measuring the temperature of the superconducting conductor, but usually, using a thermocouple wire such as copper and constantan or gold iron and chromel as a temperature sensor, attach it directly to the superconducting conductor, Was measuring the temperature of the superconducting conductor. In addition, "Kyowa Technical Report" No. 27
Volume 6 (1981), pages 1937 to 1940,
It is described that carbon is applied on a thin plastic film to form a cryogenic high-speed thermometer having a width of 3.4 mm, a length of 13.3 mm and a thickness of about 1 mm.

[0004]

In the quench detection method based on the terminal voltage of the winding conductor, the quench cannot be detected unless the superconducting state of the superconducting magnet is broken and the superconducting transition occurs. That is, there is a problem that it cannot be detected until after the winding conductor has been quenched. Also, with the recent increase in magnetic field and current density of superconducting magnets,
Since noise due to electromagnetic induction between winding conductors, power supply noise, etc. have reached a high level, the reliability of the method of detecting a minute signal generated from this terminal voltage due to a normal conduction transition is significantly reduced.

Although the shunt start temperature at which the superconducting state changes to the normal conducting state varies depending on the strength of the magnetic field and the current density, it is close to the superconducting state maintaining temperature and is usually an extremely small temperature rise. Therefore, in the method of using a thermocouple wire as the temperature sensor, measurement is difficult because the thermoelectromotive force as the sensitivity is small. In addition, the quench detection method using the temperature sensor using carbon has problems that the mechanical strength of the temperature sensor is very weak and the damage rate is high, and the sensitivity is low because a high resistance value cannot be obtained. There is a problem that innumerable temperature sensors are necessary for measuring the temperature of a long superconducting conductor because the coil cannot be continuously provided along the length direction of the coil winding conductor.

The present invention overcomes the above-mentioned problems of the prior art, and when the temperature of a superconducting magnet in a superconducting state rises due to thermal agitation, it is possible to reliably detect a minute temperature rise before the normal conduction transition. It is an object of the present invention to provide a superconducting conductor having a detecting means having high mechanical strength and a method for manufacturing the same.

[0007]

In the present invention, the above object is achieved by providing a carbon thin film as a temperature detecting element on the superconducting conductor continuously or intermittently over the entire length of the winding conductor. Further, in the present invention, a superconducting conductor around which a superconducting magnet is wound, a carbon thin film having a large rate of change in electric resistance with respect to temperature is adhered to the peripheral portion of the superconducting conductor with an organic insulating solvent of formal or polyester, or an organic insulating tape. Insulating tape with carbon thin film coated or sputtered with carbon liquid is adhered with an insulating solvent, or a groove is partially or continuously provided in the length direction of the superconducting conductor, and the groove is impregnated with a carbon thin film-coated core wire or carbon liquid. The above object is achieved by manufacturing and winding a carbon thin film-coated superconducting conductor in which the glass fiber material or the organic fiber material is embedded.

[0008]

[Function] The inventors of the present invention filed an earlier application (Japanese Patent Application No. 4-1542).
As disclosed in (No. 8), the carbon thin film has a very large temperature coefficient of electric resistance at extremely low temperatures. And
By using carbon as a thin film, the electrical resistance can be increased and flexibility can be increased,
It is possible to construct a temperature sensor having extremely high sensitivity and high mechanical resistance.

By providing the temperature sensor made of the carbon thin film continuously or intermittently over the entire length of the winding conductor, the temperature detecting portion constituting the quench predicting device can be easily set at an arbitrary position of the superconducting conductor. Therefore, quench detection of the superconducting conductor can be performed with high reliability and high sensitivity. By the carbon-coated superconducting conductor manufacturing method of the present invention, the carbon thin film adhesively coated on the superconducting conductor is a very thin thin film having a thickness of several tens of microns,
Alternatively, it is formed into a thin film on a thin organic insulating tape, and the superconducting conductor is adhesively coated with an organic insulating solvent such as formal or polyester, so that the carbon liquid does not penetrate into the insulating material and short-circuit with the superconducting conductor. Can be carbon coated over long distances. At the same time, the adhesion strength of the carbon thin film is very strong, and even if there is some expansion and contraction of the conductor when it is bent, shocked, or hit, there is no peeling or cracking, and it is flexible and has high mechanical strength. A coated superconducting conductor can be obtained.

Further, even in the embedded structure of the carbon-coated core wire or the glass fiber material or the organic fiber material impregnated with the carbon liquid, since the carbon coating layer or the impregnation material of the core wire is embedded in a very thin one having a thickness of several tens of microns. Similarly to the above, a carbon-coated superconducting conductor having high mechanical strength and high sensitivity to temperature change can be manufactured. By winding a superconducting magnet with the carbon-coated superconducting conductor and forming a temperature detecting device, the superconducting conductor has an extremely small size. Small movements or damage to the impregnated material,
It is possible to manufacture a superconducting magnet that is safe and highly reliable because it can accurately detect even a minute temperature rise caused by the occurrence of cracks, that is, even a minute temperature change before the shunt start temperature at which the superconductor starts the normal conduction transition. Become.

[0011]

Embodiments of the present invention will now be described with reference to the drawings. [Embodiment 1] FIG. 1 shows a manufacturing process of a carbon-coated superconducting conductor according to an embodiment of the present invention. FIG. 2 is a partially enlarged perspective view of the carbon-coated superconducting conductor manufactured by the method of this embodiment.

The bare flat superconducting conductor 3 wound around the winding bobbin 2, for example, is continuously fed out by the feed roller 4 and coated with an organic insulating solvent 6 such as formal or polyester from the insulating solvent coating device 5 on both sides. After that, it is pushed into the joining roller 7. The bonding roller 7 is provided with fluororesin belts 8 and 15 such as Teflon (registered trademark) carrying a carbon thin film body 10 covered with an organic insulating film 9 together with a bare rectangular superconducting conductor 3 coated with an organic insulating solvent 6. The bare thin rectangular superconducting conductor 3 is pressed in from both the upper surface and the lower surface to cover the carbon thin film body 10.

On the fluororesin belt 8 wound and driven by the joining roller 7 and the rotating bobbins 11 and 12, and on the fluororesin belt 15 wound and driven by the joining roller 7 and the rotating bobbins 13 and 14. A carbon liquid is sprayed or painted on the carbon thin film bodies 10 and 17 to form a carbon thin film body 10 having a thickness of several tens of microns, and the carbon thin film body 10 is dry-molded by drying devices 18 and 19, respectively. Then, the carbon coating insulators 22 and 23 are formed by applying an organic insulating solvent such as formal or polyester to the surface with the insulating solvent applying devices 20 and 21 to form the organic insulating film 9. In FIG. 1, the carbon coated insulators 22 and 23 are shown separated from the carbon coated superconducting conductor 1 only for explanation of the laminated state.

The carbon-coated insulator 2 formed on the bare rectangular superconducting conductor 3 and the individual fluororesin belts 8 and 15
As described above, 2 and 23 are peeled off from the fluororesin belts 8 and 15 rotated by the joining roller 7 and are adhered to the surface of the bare flat rectangular superconducting conductor 3 coated with the organic insulating solvent 6, so that they are completely adhered. As a result, the carbon-coated superconducting conductor 1 is formed.
The superconducting conductor 1 thus covered with carbon over the entire length is further molded by the adhesive roller 24, then completely dried by the drying device 25, and wound on the winding bobbin (not shown) via the adhesive roller 26 and the guide roller 27. To be turned.

The carbon-containing liquid deposited on the fluororesin belt is, for example, a carbon liquid prepared by stirring and dispersing carbon or graphite powder in an organic insulating solvent such as formal, or carbon prepared by melting with a synthetic resin adhesive. It can be a paste. The width of the carbon thin film body 10 is not particularly limited, but it is preferable to set it to be slightly smaller than the width of the superconducting conductor 3 so as not to come into contact with the superconducting conductor at the widthwise end and to cause a short circuit.

The measurement line is attached by interposing a flat copper wire having a thickness of, for example, 20 μm between the carbon thin film bodies 10 on the upper and lower surfaces of the superconducting conductor which are in contact with each other when the carbon-coated superconducting conductor 1 is wound. it can. in this way,
The carbon-coated superconducting conductor 1 of this embodiment is the same as the superconducting conductor 3.
Since the organic insulating solvent 6 is applied to both surfaces of the carbon coating and the separately molded carbon coated insulators 22 and 23 are bonded and arranged thereon, the carbon liquid at the time of forming the carbon thin film body 10 permeates the organic insulating solvent 6. Then, it does not come into contact with the superconducting conductor 3 to cause an electrical short circuit. Therefore, the superconducting conductor 3
Therefore, electrical noise does not enter the carbon thin film 10, and the accuracy of temperature detection can be improved.

Further, since the carbon thin film body 10 and the organic insulating film 9 for adhering the carbon thin film body 10 and the like are made to be a very thin thin film body, they are highly flexible and can be hit, bent or impacted for conductor deformation. , Or even if the conductor expands or contracts due to thermal expansion deformation or tensile stress,
The carbon-coated superconducting conductor 1 having excellent mechanical strength can be manufactured without peeling or cracking of the carbon thin film.

By using the carbon-coated superconducting conductor 1 of this embodiment and winding the superconducting magnet, the carbon thin film body 10 is adhesively coated over the entire length of the superconducting conductor 3 so that the measurement line can be attached. A high-precision temperature detecting element that can easily detect a minute temperature rise of about several Kelvin before the occurrence of quench and its position can be easily formed continuously at any position or at any interval. .

[Embodiment 2] FIG. 3 shows a manufacturing process of a carbon-coated superconducting conductor according to a second embodiment of the present invention. FIG. 4 is a partially enlarged view of the single-sided carbon-coated superconducting conductor manufactured according to this example. In this example, a carbon thin film is formed on a very thin insulating thin film tape to form an integrated carbon-coated insulating tape, and the upper and lower surfaces of the superconducting conductor are adhesively covered.

On one side of an insulating thin film tape 29 of, for example, formal or polyester having a thickness of several tens of microns wound around one bobbin 28, the carbon injector 30 was used to stir and disperse in formal or the like as in the first embodiment. The carbon thin film 10 is formed by spraying or applying a carbon liquid, and the carbon thin film 10 is completely dry-molded by the preheat dryer 31 to form the carbon-coated insulating tape 32. The carbon thin film body 10 can be formed by a method such as sputtering. In that case, the dryer 31 is not required, and the device configuration is simplified. The other bobbin 33
An organic insulating tape 34 of formal or polyester having a thickness of several tens of microns is wound around.

When the flat superconducting conductor 35 wound around the winding bobbin 2 is extruded and guided to the joining roller 7, one surface of the flat superconducting conductor 35 is insulated with a thin-film organic insulating solvent 36 such as formal or polyester. Solvent coating device 37
The carbon-coated insulating tape 32 is guided and adhered thereto, and the organic insulating tape 34 of the bobbin 33 is guided and adhered to the other surface of the single-sided carbon-coated superconducting conductor 40.
Is formed. Although the organic insulating solvent 39 is applied to the adhesive surface of the organic insulating tape 34 by the insulating solvent applying device 38, the application of the organic insulating solvent 39 may be applied to the rectangular superconductor 35.

The single-sided carbon-coated superconducting conductor 40 is sent out from the joining roller 7, molded by the adhesive roller 24, and then completely dried and molded by the drying device 25.
Take-up bobbin (not shown) via 6 and guide roller 27
Is wound around. In FIG. 3, the carbon-coated insulating tape and the organic insulating tape are shown separated from the carbon-coated superconducting conductor 40 only for the purpose of explaining the laminated state.

Here, the carbon-coated insulating tape 32 is used.
Is not adhered to the other surface, which is not adhered to the other side, but the organic insulation solvent is directly applied to the surface of the flat superconducting conductor 35 instead of adhering the organic insulation tape 34. Even if 32 is adhered, a carbon-coated superconducting conductor which is the same single-sided carbon-coated superconducting conductor as described above can be obtained. The carbon thin film body 10 formed on the insulating thin film tape 29 does not necessarily have to be continuous over the entire length, and there may be a break in the middle.

Single-sided carbon-coated superconducting conductor 4 of this embodiment
With 0, the conductor thickness when formed into a superconducting conductor can be made thin, and the diameter of the winding coil can be made small.
Further, according to the present embodiment, since the contact surface between the winding conductors during the winding work is in contact with the surface of the carbon thin film body and the surface of the organic insulator, slipping between the conductor and the conductor during tightening the conductor is improved. Since the carbon thin film does not have a risk of being damaged and a tensile stress can be arbitrarily applied as needed, the winding conductor is not loosened or loosened, and a superconducting magnet with high dimensional accuracy can be wound. Further, according to the present embodiment, the insulating thin film tape 29 to which the carbon thin film body 10 is adhered can be made thinner in the insulating layer on the side closely adhered to the insulating layer, so that a more accurate temperature detecting element is formed. Therefore, it is possible to catch the quench phenomenon at an early stage, prevent the quench, and maintain stability and improve reliability.

[Embodiment 3] FIG. 5 shows a manufacturing process of a superconducting conductor according to a third embodiment of the present invention. In this embodiment, a recess or a groove is provided in the superconducting conductor, and a non-magnetic metal core wire, an organic insulating fiber wire material or a glass fiber wire material is embedded with a carbon-coated core wire material. The rectangular superconducting conductor 35 wound around the electric wire bobbin 41 is guided by the groove cutting roller 43 while being fed by the guide roller 42. After the groove 44 is cut by the groove cutting roller 43, the insulating coating devices 45 and 46 are formed.
Is insulation-coated with, is dried by a drying device 47, is insulation-molded, and is sent to a joining roller 48.

The separate bobbin 49 is made of a non-magnetic metal core wire such as copper or stainless steel, or an insulating wire material such as an organic insulating fiber material or a glass fiber material in which raw thread or cotton thread is dipped in an organic insulating solvent such as formal. The core wire 50 is wound. Here, a case where the core wire 50 is a rectangular core wire will be described. The core wire 50 is extruded by a feed roller 51, coated with an organic insulating solvent such as formal by an insulating coating device 52 to be insulated, dried by a drying device 53, and guided by a molding roller 54 to be insulated and molded. After that, carbon is coated by a carbon coating device 55 to a thickness of several tens of microns, and then dried by a drier 56 to form a carbon-coated rectangular core wire 57. The carbon coating device 55 includes
The carbon liquid is appropriately injected from the injection container 64 according to the amount used.

The carbon-coated flat rectangular core wire 57 thus formed is guided to the joining roller 48 via the guide roller 58 and the guide roller 59, and is fitted and embedded in the groove 44 of the flat-shaped superconducting conductor 35 formed by insulation molding, and then insulated again. The device 61 is insulated and dried by the drier 62 to form the superconducting conductor 60 having the carbon-coated core wire embedded structure. When manufacturing the winding conductor of the superconducting magnet to have a sufficient length, another winding drum is provided at the tip of the guide roller 63 and is wound via the guide roller 63.

Since the carbon thin film can be closely adhered to the superconducting conductor even by the superconducting conductor having the carbon-coated core wire burying structure of the present embodiment, the temperature detecting element capable of sensitively detecting the temperature change of the superconducting conductor can be constructed. Similarly, it is possible to catch the quench phenomenon at an early stage to prevent the quench phenomenon, thereby maintaining stability and improving reliability. Further, in this embodiment, since the carbon-coated core wire is fitted and buried in the insulated groove provided in the superconducting conductor, even if some damage is caused in addition to the impact of the conductor deformation correction during the coil winding work. The carbon coated core wire is not broken, and the workability of the winding can be improved.

Here, an example in which the carbon-coated rectangular core wire 57 is fitted and embedded in the rectangular superconducting conductor 35 has been described. However, a method of embedding a carbon-coated round core wire by providing a groove in the rectangular insulated superconducting conductor, or a circular insulated superconducting wire. A superconducting conductor capable of forming a temperature detecting element equivalent to that of the above-mentioned embodiment can also be manufactured by cutting a groove around the conductor and embedding a carbon-coated round core wire in the groove.

[Embodiment 4] FIG. 6 shows a process of manufacturing a superconducting conductor according to a fourth embodiment of the present invention. This embodiment is several meters
It is applied to a thick single-wire superconducting conductor with a diameter of m, and the superconducting conductor is spirally coated with a carbon-coated insulating tape. In this embodiment, a carbon-coated insulating tape 67 in which a carbon thin film 66 is formed on an organic insulating tape 65 having a thickness of several tens of microns is manufactured in advance and wound around a tape drum 68 in the same manner as in the above embodiment. Then, the superconducting conductor 69 is extruded from an extruding machine (not shown) to form the wire forming roller 70.
When entering, the carbon coated insulating tape 67 is taken out from the tape drum 68, an organic insulating solvent such as formal or polyester is applied by an adhesive application device 71 to spirally coat the superconducting conductor 69, and a wire forming roller 70 is coated with carbon. After the insulating tape 67 and the superconducting conductor 69 are integrally molded, they are dried by the drying device 72 to obtain the carbon thin film spiral coated superconducting conductor 73. The carbon thin film may be formed on the organic insulating tape by a method such as sputtering.

Also in this embodiment, since the carbon thin film is continuously applied, the temperature detecting element can be formed at any place and at any interval as in the above-mentioned embodiments. In addition, the wire diameter becomes large, the conductor pressure and tensile stress at the time of winding work increase, and the winding work becomes rough, and the carbon thin film may be damaged. In addition to being very thin, it has a high mechanical strength because it is integrally bonded to the superconducting conductor 69 with an organic insulating solvent such as formal or polyester, which facilitates winding work, especially as a winding conductor for a large superconducting magnet. A useful superconducting conductor can be manufactured.

[Fifth Embodiment] FIG. 7 shows a superconducting conductor according to a fifth embodiment of the present invention. In this embodiment, a plurality of insulating superconducting wires 74 having an insulating film 75 and one or several carbon-coated superconducting wires 76 in which a carbon thin film is coated over the entire circumference of the insulating film 75 are manufactured. They are twisted together to form a carbon-coated superconducting stranded wire 77.

Even if the carbon-coated superconducting element wire 76 and the insulating superconducting element wire 74 are twisted together in this way, the insulating film 75 of the insulating superconducting element wire 74 is very thin, which is several tens of microns thick.
Even if a carbon thin film 78 having a thickness of about 10 μm is formed on the insulating film 75, the stranded wire diameter is not significantly affected, and the carbon-coated superconducting element wire 76 and the insulating superconducting element wire 74 have good adhesion and flexibility. Since it is possible to form a thin wire, the same effect as that of the above-described embodiment can be obtained. The present embodiment is suitable for application to the winding conductor of a small-sized superconducting magnet because the temperature detecting element can be easily formed at any position even with a small winding coil.

[Embodiment 6] FIG. 8 shows a process for producing a superconducting conductor having a carbon-impregnated material embedded structure according to a sixth embodiment of the present invention. The present embodiment is particularly intended for a winding conductor of a superconducting magnet device for a large current and a high magnetic field, and the winding conductor has a thickness in which a superconducting conductor is embedded in a stabilizing material made of a normal conducting metal such as copper. Use a rectangular superconducting conductor of mm or more.

The flat superconducting conductor 79 sent from the guide roller 80 enters the groove cutting roller 81, and the stabilizing material 82 made of copper or the like is provided with the buried groove 83 having a depth of about 1 mm, and then the insulating coating device 84 is used. It is completely insulated by the organic insulating solvent, dried by the drying device 85, and then sent to the embedded joining roller 86. The embedded joining roller 86 is provided with a soft carbon fiber material 91 obtained by impregnating carbon into a thin organic insulating fiber material 89 or glass fiber material sent from another insulating drum 87 through a guide roller 88 with a carbon impregnation coating device 90. It is sent together with the flat superconducting wire 79, and is fitted and embedded in the embedding groove 83 of the flat superconducting wire 79. The organic insulating fiber material is obtained by immersing fibers such as raw thread and cotton thread in an organic insulating solvent such as formal. Embedded bonding roller 86
Then, the carbon fiber material 91 is firmly dried and adhered by the preheat dryer 92, and is fed from the feed roller 93 to obtain the superconducting conductor 94 having the carbon-impregnated material embedded structure.

According to this embodiment, there is no influence on the coil winding work, there is no fear of damage even if the winding tension or the impact of the conductor deformation correction is applied, and the carbon-embedded superconducting conductor 94 having a high mechanical strength. Is obtained.

[0037]

According to the present invention, a carbon thin film having a thickness of several tens of microns is formed on an insulating belt which can be easily peeled off, or formed on an organic insulating tape, a non-magnetic metal core wire, a fiber wire material or the like to have flexibility. By bonding or embedding the carbon thin film continuously or at arbitrary intervals over the entire length of the superconducting conductor with an organic insulating solvent, bending or impact may be caused, and the conductor may expand or contract due to thermal expansion or tension. Even if it does not peel or crack, it has excellent mechanical strength.
Then, it is possible to obtain a carbon-coated superconducting conductor capable of forming a temperature detecting element at an arbitrary position of the conductor length.

Further, by winding a superconducting magnet with the carbon-coated superconducting conductor, a temperature detecting element capable of accurately and sensitively detecting even a minute movement of the coil or a temperature change due to damage of the coil impregnating agent or generation of cracks. Since it can be configured, it is possible to manufacture a superconducting magnet that can reliably detect even a minute temperature change before quenching and predict the quenching early.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a manufacturing process of a double-sided carbon-coated superconducting conductor according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of a double-sided carbon-coated superconducting conductor according to the first embodiment of the present invention.

FIG. 3 is an explanatory view showing a manufacturing process of a single-sided carbon-coated superconducting conductor according to a second embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view of a single-sided carbon-coated superconducting conductor according to a second embodiment of the present invention.

FIG. 5 is an explanatory view showing a manufacturing process of a superconducting conductor having a carbon-coated core wire burying structure according to a third embodiment of the present invention.

FIG. 6 is an explanatory view showing a manufacturing process of a carbon thin film spirally coated superconducting conductor according to a fourth embodiment of the present invention.

FIG. 7 is a partially enlarged perspective view of a carbon-coated superconducting stranded wire according to a fifth embodiment of the present invention.

FIG. 8 is an explanatory view showing a manufacturing process of a carbon fiber material-embedded superconducting conductor according to a sixth embodiment of the present invention.

[Explanation of symbols]

1 ... Carbon coated superconducting conductor 2 ... Winding bobbin 3
... Bare rectangular superconducting conductors 4, 51, 93 ... Feed rollers 5, 20, 21 ... Solvent coating edge device 6, 36, 39 ... Organic insulating solvent 7, 48 ... Joining roller 8, 15 ... Fluororesin belt 9 ... Organic Insulation film
10 ... Carbon thin film body 16, 17 ... Carbon injection device 18, 19, 25,
53, 72 ... Drying device 22, 23 ... Carbon coated insulator 29 ... Insulating thin film tape 30 ... Carbon injector 31 ... Preheat dryer 32 ...
Carbon coated insulating tape 34, 65 ... Organic insulating tape 35, 79 ... Rectangular superconducting conductor 37, 38, 61 ... Insulating device 40 ... Single-sided carbon coated superconducting conductor 43, 81 ... Grooving roller 44 ... Groove 45, 46
... Insulation coating device 47, 85 ... Drying device 50 ... Rectangular core wire 52 ...
Insulation coating device 54 ... Forming roller 55 ... Carbon coating device 5
6, 62 ... Dryer 57 ... Carbon coated rectangular core wire 64 ... Carbon injection container 66 ... Carbon thin film 67 ... Carbon coated insulating tape 69 ... Superconducting conductor 70 ... Wire forming roller 71 ... Adhesive coating device 73 ... Carbon thin film spiral coated superconducting wire 74 ... Insulated superconducting element wire 75 ... Insulating film 76 ... Carbon coated superconducting element wire 77 ... Carbon coated superconducting twisted wire 78 ... Carbon thin film 82 ... Stabilizing material 83 ... Embedding groove 84 ... Insulation coating device 86 ... Embedding joining roller 89 ... Organic Insulating fiber material 90 ... Carbon impregnation coating device 91 ... Carbon fiber material 92 ... Preheat dryer 94 ...
Carbon buried superconducting conductor

Claims (50)

[Claims] 1. A carbon-coated superconducting conductor having a surface coated with a carbon thin film by an insulating material. 2. A carbon-coated superconducting conductor characterized in that a carbon thin film body is continuously adhered and coated with an insulating material over the entire surface of the superconducting conductor. 3. A carbon-coated superconducting conductor characterized in that a carbon thin film body is adhesively coated on the surface of the superconducting conductor at intervals in the lengthwise direction with an insulating material. 4. A carbon-coated superconducting conductor comprising a long thin plate-shaped superconducting conductor, on both sides of which a carbon thin film is continuously adhered and coated with an insulating material. 5. A carbon-coated superconducting conductor, wherein a carbon thin film body is continuously adhered and coated with an insulating material on one surface of a long plate-shaped superconducting conductor. 6. A carbon-coated superconducting conductor, characterized in that a carbon thin film body is adhesively coated with an insulating material at intervals on one side of a long plate-shaped superconducting conductor. 7. The carbon-coated superconducting conductor according to claim 5, wherein an insulating material thin film is adhered to the other surface of the long plate-shaped superconducting conductor. 8. A carbon-coated superconducting conductor, characterized in that a carbon thin film body is spirally adhered and coated with an insulating material on the peripheral surface of a long linear superconducting conductor. 9. The carbon-coated superconducting conductor according to claim 1, wherein the carbon thin film body is formed by forming a carbon thin film on an insulating material thin film. 10. The carbon-coated superconducting conductor according to claim 1, wherein the carbon thin film body is adhered to the surface of the superconducting conductor with an organic insulating solvent. 11. A superconducting conductor comprising a carbon-coated core wire embedded in a groove formed in the longitudinal direction of the long superconducting conductor. 12. The superconducting conductor according to claim 11, wherein the carbon-coated core wire is a non-magnetic metal material having a surface coated with an insulating material and carbon coated thereon. 13. The superconducting conductor according to claim 11, wherein the carbon-coated core wire is an organic insulating fiber wire or a glass fiber wire. 14. A superconducting stranded wire comprising a plurality of superconducting stranded wires, wherein at least one superconducting stranded wire is a carbon-coated superconducting stranded wire. 15. A carbon-impregnated material-embedded superconducting conductor characterized in that a carbon-impregnated material is embedded in grooves formed intermittently in the longitudinal direction of a long superconducting conductor in which a superconducting conductor is embedded in a normal-conducting metal base material. . 16. The carbon-impregnated-material-embedded superconducting conductor according to claim 15, wherein the carbon-impregnated material is an organic fiber material or a glass fiber material impregnated with a carbon liquid. 17. A step of forming a carbon thin film having a thickness of several tens of microns on a fluororesin belt, a step of drying the carbon thin film, and an organic insulating solvent applied on the dried carbon thin film to dry the carbon coating. A method for producing a carbon-coated superconducting conductor, comprising: a step of forming an insulating material film; and a step of adhesively coating the carbon-coated insulating material film on the surface of a long superconducting conductor with an organic insulating solvent and peeling it from the belt. 18. The carbon-coated insulating material film is formed on separate fluororesin belts above and below the long superconducting conductor, and both surfaces of the long superconducting conductor are adhesively coated. 18. The method for producing a carbon-coated superconducting conductor according to 17. 19. The method for producing a carbon-coated superconducting conductor according to claim 17, wherein the fluororesin is polytetrafluoroethylene. 20. The method for producing a carbon-coated superconducting conductor according to claim 17, wherein the organic insulating solvent is formal or polyester. 21. A step of forming a carbon thin film on the surface of an organic insulating thin film tape to prepare a carbon coated insulating tape, and bonding the carbon coated insulating tape to one surface of a long plate-shaped superconducting conductor with an organic insulating solvent. The step of coating,
A method for producing a carbon-coated superconducting conductor, comprising a step of adhering an insulating thin film tape to the other surface of the long superconducting conductor. 22. The method for producing a carbon-coated superconducting conductor according to claim 21, wherein the organic insulating solvent is formal or polyester. 23. The organic insulating thin film tape is made of formal or polyester.
22. A method for producing a carbon-coated superconducting conductor according to item 22. 24. The method for producing a carbon-coated superconducting conductor according to claim 21, 22 or 23, wherein the carbon thin film is formed by spraying, coating or sputtering a carbon dispersion liquid. 25. A step of applying an organic insulating solvent to the other surface of a carbon-coated insulating tape having a carbon thin film formed on one surface, and a step of spirally coating the carbon-coated insulating tape on a long linear superconducting conductor. A method for producing a carbon-coated superconducting conductor, comprising: 26. The method for producing a carbon-coated superconducting conductor according to claim 25, wherein the carbon thin film is formed by spraying, coating or sputtering a carbon dispersion liquid. 27. A step of coating a carbon thin film on the surface of a core wire made of a non-magnetic metal or an insulating material and then drying the core wire to produce a carbon-coated core wire, and a groove continuous in one longitudinal direction on one surface of the long superconducting conductor. And a step of applying an insulating material to the surface of the long superconducting conductor and drying, and a step of burying the carbon-coated core wire in a groove formed in the long superconducting conductor. Method for manufacturing superconducting conductor with embedded carbon-coated core wire. 28. The carbon-coated core wire-embedded superconducting conductor according to claim 27, wherein the step of producing the carbon-coated core wire includes the step of coating the surface of the core wire with an insulating material before coating the carbon thin film. Production method. 29. The insulating material forming the core wire is an organic insulating fiber or a glass fiber.
Or the method for producing a carbon-coated core wire-embedded superconducting conductor according to item 28. 30. A superconducting twist, characterized in that a plurality of superconducting element wires, the periphery of which is covered with an insulating film, and at least one carbon-coated superconducting element wire, wherein an insulating film is further covered with a carbon thin film, are twisted together. Wire manufacturing method. 31. A step of providing a plurality of grooves having a predetermined length in a longitudinal direction of a normal conducting metal base material constituting a long plate-shaped superconducting conductor, and covering the surface of the normal conducting metal base material and the grooves with an insulating material. And a step of impregnating the fiber material with a carbon liquid, and a step of burying the carbon material-impregnated fiber material in the groove, a method of manufacturing a carbon-impregnated material-embedded superconducting conductor. 32. The method for producing a carbon-impregnated-material-embedded superconducting conductor according to claim 31, wherein the fiber material is an organic fiber material or glass fiber. 33. A superconducting magnet, characterized in that the carbon-coated superconducting conductor, the superconducting conductor, the superconducting stranded wire, or the carbon-impregnated material-embedded superconducting conductor according to any one of claims 1 to 16 is wound. 34. The superconducting magnet according to claim 33, wherein a lead wire for measuring the resistance of carbon is provided. 35. The superconducting magnet according to claim 33, wherein the carbon is used as a temperature sensor. 36. The carbon according to claim 1, wherein the carbon is used as a temperature sensor.
The coated superconducting conductor, the superconducting conductor, the superconducting stranded wire, or the carbon-impregnated-material-embedded superconducting conductor as described in the above item. 37. A means for conveying a long plate-shaped superconducting conductor in the longitudinal direction, a means for applying an organic insulating solvent to the surface of the conveyed long plate-shaped superconducting conductor, a fluororesin belt, and the fluororesin belt. Means for forming a carbon thin film thereon, means for drying the carbon thin film, means for forming an organic insulating film on the dried carbon thin film, means for drying the organic insulating film, and the fluororesin belt Joining means for adhering the carbon thin film covered with the organic insulating film to the surface of the long plate-shaped superconducting conductor by pressing the organic insulating solvent of the long plate-shaped superconducting conductor on the surface,
An apparatus for producing a carbon-coated superconducting conductor, comprising: a means for drying an organic insulating film adhered to the surface of the long plate-shaped superconducting conductor with an organic insulating solvent. 38. The fluororesin belt, means for forming a carbon thin film on the fluororesin belt, means for drying the carbon thin film, means for forming an organic insulating film on the dried carbon thin film, the organic insulation Means for drying a film, the fluororesin belt is pressed against the surface of the long plate-shaped superconducting conductor coated with an organic insulating solvent, and a carbon thin film covered with the organic insulating film is attached to the long plate-shaped superconducting conductor. 38. The carbon-coated superconducting conductor manufacturing apparatus according to claim 37, wherein the joining means for adhering to the surface are respectively provided above and below the conveying path of the long plate-shaped superconducting conductor. 39. The carbon-coated superconducting conductor manufacturing apparatus according to claim 37, wherein the fluororesin is polytetrafluoroethylene. 40. The carbon-coated superconducting conductor manufacturing apparatus according to claim 37, 38 or 39, wherein the organic insulating solvent is formal or polyester. 41. A means for conveying a long plate-shaped superconducting conductor in the longitudinal direction, a means for applying an organic insulating solvent to the surface of the conveyed long plate-shaped superconducting conductor, an organic insulating thin film tape supplying means, and A means for forming a carbon thin film on the surface of an organic insulating thin film tape to form a carbon-coated insulating tape,
Bonding means for pressing the organic insulating thin-film tape side of the carbon-coated insulating tape to the surface of the long plate-shaped superconducting conductor coated with the organic insulating solvent to adhere to the surface of the long plate-shaped superconducting conductor; An apparatus for producing a carbon-coated superconducting conductor, which comprises a means for drying an organic insulating thin film tape adhered to the surface of a scale plate-shaped superconducting conductor with an organic insulating solvent. 42. The carbon-coated superconducting conductor manufacturing apparatus according to claim 41, wherein the organic insulating solvent is formal or polyester. 43. The organic insulating thin film tape is made of formal or polyester.
42. An apparatus for producing a carbon-coated superconducting conductor according to item 42. 44. An apparatus for producing a carbon-coated superconducting conductor according to claim 41, 42 or 43, wherein the means for forming the carbon thin film is a carbon dispersion liquid jetting means, a coating means or a sputtering means. 45. A means for conveying a long linear superconducting conductor in the longitudinal direction, a means for supplying a carbon-coated insulating tape having a carbon thin film formed on one surface thereof, and an organic material for the other surface of the carbon-coated insulating tape. An apparatus for producing a carbon-coated superconducting conductor, comprising: a means for applying an insulating solvent; and a means for spirally coating the carbon-coated insulating tape on a long linear superconducting conductor. 46. A means for conveying a long plate-shaped superconducting conductor in a longitudinal direction, a means for forming a groove continuous in the longitudinal direction on the surface of the long plate-shaped superconducting conductor, and a long plate having the groove formed therein. Means for applying an insulating material to the surface of the superconducting conductor, means for drying the insulating material, means for supplying a core wire made of a non-magnetic metal or an insulating material, and means for coating the surface of the core wire with a carbon thin film. A carbon-coated core wire-embedded superconducting conductor, including means for drying the carbon thin film, and means for burying a core wire coated with the dried carbon thin film in a longitudinal groove of the long plate-shaped superconducting conductor. Manufacturing equipment. 47. The carbon-coated core wire-embedded superconducting conductor manufacturing apparatus according to claim 46, further comprising means for coating the surface of the core wire with an insulating material before coating the surface of the core wire with the carbon thin film. 48. The insulating material forming the core wire is an organic insulating fiber or a glass fiber.
Or 47, an apparatus for producing a carbon-coated core wire-embedded superconducting conductor. 49. A means for conveying a long plate-shaped superconducting conductor in which a superconducting conductor is embedded in a normal conducting metal base material in a longitudinal direction,
Means for providing a groove of a predetermined length in the longitudinal direction of the normal conductive metal base material, means for coating the normal conductive metal base material surface and the groove with an insulating material, means for supplying a fibrous material, and the fibrous material 1. A manufacturing apparatus for a carbon-impregnated material-embedded superconducting conductor, comprising: a means for impregnating a carbon liquid with a means; and a means for embedding a fiber material impregnated with the carbon solution in the groove. 50. The carbon-impregnated-material-embedded superconducting conductor manufacturing apparatus according to claim 49, wherein the fiber material is an organic fiber material or glass fiber.