CN102723161B - Solenoid coil of ceramic framework superconducting magnet - Google Patents
Solenoid coil of ceramic framework superconducting magnet Download PDFInfo
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- CN102723161B CN102723161B CN2012102374772A CN201210237477A CN102723161B CN 102723161 B CN102723161 B CN 102723161B CN 2012102374772 A CN2012102374772 A CN 2012102374772A CN 201210237477 A CN201210237477 A CN 201210237477A CN 102723161 B CN102723161 B CN 102723161B
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Abstract
The invention relates to a solenoid coil of a ceramic framework superconducting magnet. The solenoid coil is formed by tightly winding superconducting lines on a coil framework by turns and layers, wherein the coil framework is formed by a tubular core cylinder and end plates positioned at both ends of the core cylinder; the coil framework is made of nanocrystalline complex phase processable ceramic materials containing a second phase of hexagonal boron nitride; a binding layer is arranged outside the superconducting magnet coil; a solidified filling material is filled in a gap of the superconducting magnet coil; the solidified filling material is low-temperature polyurethane modified epoxy resin material doped with spherical ceramic particles; a positioning blind hole is arranged on the outer side of the end plate of the coil framework; the end plate of the coil framework is provided with a diagonal outlet hole; the position of the outlet hole on the inner side of the end plate is corresponding to that of a superconducting line in the superconducting coil; the direction of the outlet hole is the same as the winding tangential direction of the superconducting line in the superconducting coil; the superconducting line passes through the end plate of the framework through the outlet hole, and leads to the outside of the coil framework. The solenoid coil can be used for preparing Nb3Sn, NbTi and other superconducting coils.
Description
Technical field
The present invention relates to a kind of superconducting magnet coil, particularly a kind of ceramic skeleton superconducting magnet solenoid coil that is applicable to the cryogenic liquid medium immersion type of cooling.
Background technology
Superconducting magnet has the advantages such as energy consumption is low, volume is little, lightweight, can in large space, produce high-intensity magnetic field and consume hardly electric energy, thereby be a large amount of researches in new high-tech, the research platform can not be substituted as creation such as controlled thermonuclear reaction, biomedicine, space science, high-energy physics, materials processing, magnetohydrodynamic generations.
Superconducting magnet system mainly is comprised of three parts such as superconducting magnet coil, refrigeration and cryogenic device, electric measurement and controls.Wherein, superconducting magnet coil is the core component of superconducting magnet system, thereby the generation of high-intensity magnetic field is exactly superconducting magnet coil, in low temperature the two poles of the earth energising under superconducting state, produces.According to the different demands to the Distribution of Magnetic Field form, superconducting magnet coil possesses various shape, as tubular as helical, saddle type, cheese etc.Wherein, the superconducting magnet coil range of application of solenoid shape is the most extensive.Superconducting magnet coil need to be wound on coil rack and be completed by superconducting line.Superconducting magnet framework plays carrying superconducting magnet coil winding, locus, location, conduction low temperature cold, fixes the effect of other electric components in magnet system.The condition of choosing of superconducting magnet framework material is: need to possess higher obdurability, can stand cold cycling and impact, thermal conductivity at cryogenic temperatures can be good, without ferromagnetism.
At present, the superconducting coil skeleton mainly is prepared into by metal materials such as copper alloy, aluminium alloys, and its advantage is that the strength of materials is high, processing characteristics is good.But, because metal alloy itself has conductivity, make between superconducting coil and skeleton and must stop, between superconducting line and skeleton, electric short circuit occurs by insulation processing.Insulation processing can adopt skeleton to apply insulating coating or pad insulation lamella completes.But in the actual winding process of superconducting magnet coil, especially at the position of superconducting line line ring framework, often there will be the problem of insulation breakdown, cause the serious consequence of magnet coil global failure.In addition, metal alloy also must have fully nonmagnetic as the superconducting coil framework material, otherwise can cause unexpected interference to the design Distribution of Magnetic Field of magnet.But often in framework material, can accident there is magnetic, destroy magnetic field.Such as some brass alloys itself do not possess magnetic, but after processing by local welding, material internal undergoes phase transition, and changes into and has faint magnetic, and the manufacture of magnet is caused to negative effect.Especially at Nb
3In Sn low-temperature superconducting coil technology of preparing, the more complicated harshness of the selection standard of framework material.Due to Nb
3The special process characteristic of Sn superconducting line self, need to, after the superconducting coil coiling, carry out diffusion heat treatments by coil together with skeleton and make coil possess superconductivity.Heat treatment temperature is up to 600 ~ 700 ℃, heat treatment time reach 7 ~ 20 days even longer.In the face of so harsh heat-treat condition, can not adopt material that the fusing point such as aluminium alloy, copper alloy and fiberglass or softening temperature are lower as Nb
3Sn superconducting coil skeleton, can only adopt the resistant to elevated temperatures structural material such such as stainless steel material.But stainless steel material is that as the shortcoming of framework material its heat conductivility is poor, the inner local temperature rise of magnet can not blaze abroad by skeleton very soon, has increased the magnet quenching possibility.
In sum, in the superconducting magnet build process, superconducting coil skeleton and the superconducting magnet coil structure thereof of metal alloy material have certain disadvantages.Insulation parameter is being required under high condition, needing a kind of novel superconducting magnet coil structure of exploitation, and the coil rack material.
Summary of the invention
The object of the invention is to solve the potential problems that metal material skeleton in existing superconducting magnet coil structure exists in insulation property and magnetic, a kind of new superconductive magnet solenoid coil based on the ceramic material framework form is proposed, to meet the requirement of superconducting magnet to skeleton insulation property and magnetic.
Technical scheme of the present invention is as follows:
A kind of ceramic skeleton superconducting magnet solenoid coil, its coil rack material is pottery.Superconducting line pursues circle, closely is wound on coil rack layer by layer, is coiled into superconducting magnet coil.Outside for the colligation layer at superconducting magnet coil, be full of curing filler material in the superconducting magnet coil gap between coil rack and colligation layer.
Wherein, coil rack consists of straight tube-like core cylinder and the end plate that is positioned at core cylinder two ends.
Wherein, be provided with oblique wire hole on the end plate of coil rack, described wire hole in the position of end plate inboard corresponding to the residing position of superconducting line outlet in superconducting coil, and the direction of wire hole is consistent with the coiling tangential direction of superconducting line outlet in superconducting coil, described superconducting line through the skeleton end plate, is guided the coil rack outside by described wire hole into.Said structure has guaranteed that superconducting line goes out kinking damage and the wearing and tearing that superconducting line can not occur in line process, has ensured the normal usage energy of superconducting line.
Wherein, be provided with the location blind hole on the end plate of coil rack.Superconducting magnet coil is in the assembling process of low-temperature (low temperature) vessel, and, with in the nested assembling process of other coils, all needs the locus of accurate set winding.Can realize the accurate space orientation of coil by the described location blind hole that is arranged on the superconducting magnet coil end plate.
Wherein, the nanocrystalline complex phase processable ceramic that the coil rack material selection contains hexagonal boron nitride, its parent phase ceramic material is aluminium oxide or aluminium nitride; Second-phase wherein is nanocrystalline hexagonal boron nitride particles, and disperse is distributed in the crystal grain of parent phase pottery and on crystal boundary.The crystal structure of hexagonal boron nitride is extremely similar to graphite, has that fusing point is high, density is little, thermal coefficient of expansion is little, thermal conductivity is good, thermal shock resistance is good, electrical insulating property is good, dielectric constant and a good characteristic such as dielectric loss is little.And, with graphite-like seemingly, after the hexagonal boron nitride ceramic post sintering, be the soft material that a kind of processing characteristics is good, the available metal tool sharpening prepares complex-shaped engineering ceramics parts.Test shows, the complex phase ceramic that contains certain proportion hexagonal boron nitride phase also shows good thermal shock resistance, corrosion resistance and machinability.Aluminium nitride ceramics has higher thermal conductivity, and the theoretical thermal conductivity of its normal temperature can reach 300W/ (mK), and when 45K, heat conductivity value is 25W/ (mK), has reached about 92W/ (mK) near 131K.This explanation aluminium nitride is good heat carrier at low temperatures, again due to fabulous electrical insulation capability being arranged, is highly suitable in superconductive system and is used as the insulating heat-conductive part.The alumina ceramic material excellent insulation performance, the class of insulation is high, light specific gravity, its density is 3.965g/cm
3, be only half of stainless steel density, can alleviate the low temperature cold weight of magnet coil.And the heat conductivility of aluminium oxide ceramics also is better than stainless steel, the conductive coefficient of stainless steel when 4K is only 0.27W/mK, the conductive coefficient of 100K is only 9.2W/mK, and the conductive coefficient during 4K of alumina ceramic material is 0.49W/mK, and the conductive coefficient of 100K is 136W/mK.Therefore, choosing the nanocrystalline complex phase processable ceramic that contains hexagonal boron nitride can the strengthening material heat conductivility as the coil rack material, eliminates in time the quench possibility that local temperature rise causes.Complex phase processable ceramic is except possessing good heat conduction and electrical insulation capability, and its mechanical property is also very excellent.General ceramic material all exists that fragility is large, easy fracture, the shortcoming that is difficult to processing.And the various parts cold working such as complex phase processable ceramic can stand random car, mills, boring, and easy fracture not, can stand the requirement to the superconducting coil skeleton fully.The nanocrystalline complex phase processable ceramic that contains hexagonal boron nitride adopted for the present invention, research shows the increase along with hexagonal boron nitride content, and processability improves, Vickers hardness descends, and fracture toughness also can improve.In addition, ceramic material at low temperatures the shrinkage coefficient lower than metal material.When superconducting coil moves at low temperature environment, can make the coil hooping skeleton of ceramic skeleton outside, thereby reduce superconducting magnet coil, produce the probability that quench occurs in fine motion under electromagnetic force.Therefore, the nanocrystalline complex phase processable ceramic that contains the hexagonal boron nitride tissue is comparatively desirable superconducting coil framework material.
Wherein, curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with spherical ceramic particles, and its spherical ceramic particles is boron nitride or aluminium nitride.The thermal conductivity at cryogenic temperatures energy of the above-mentioned excellence possessed due to boron nitride or aluminium nitride, it can improve the thermal conductivity at cryogenic temperatures energy of epoxide resin material effectively.Low temperature polyurethane modified epoxy resin material is by the adjustment to material composition, possessed higher cementitiousness and tensile shear strength under utmost point low temperature environment, but the heat conductivility of epoxide resin material is general, the admixture ceramic material is exactly the purpose that improves the material thermal conductivity energy in order to reach.The spherical ceramic particles diameter is the 50-300 micron, and the quality proportioning of spherical ceramic particles and low temperature polyurethane modified epoxy resin material is 1:6.
Wherein, a kind of method that is full of curing filler material in superconducting magnet coil gap between coil rack and colligation layer is: brush liquid curing filler material in winding space while wind the line in the superconducting coil winding process, complete the filling of full curing filler material in coil winding; Be cured processing after coiling.
Wherein, the another kind of method that is full of curing filler material in superconducting magnet coil gap between coil rack and colligation layer is: be not cured the brushing of packing material in the coil winding process, and at coil winding complete and fix after, adopt again vacuum infusion techniques to superconducting coil gap-fill liquid curing packing material, and be cured processing.
Carry out heat treated Nb after coiling for needs
3Sn low-temperature superconducting coil, can not brush the liquid curing packing material in limit around limit, because curing filler material can not stand high-temperature heat treatment environment subsequently, can melt inefficacy.Therefore can only be at coil winding complete and fix after, then be placed in special-purpose steeper and carry out vacuum solidification packing material dipping, the liquid curing packing material is flowed between the superconducting line gap in coil, complete the curing filler material dipping.For need to after coiling, not carrying out heat treated NbTi low-temperature superconducting coil or high temperature superconductor coil, while can in the superconducting line winding process, wind the line and brush liquid curing filler material, be cured processing after coiling.
Wherein, for the ceramic skeleton superconducting magnet solenoid coil that adopts the curing filler material vacuum infusion techniques, evenly be placed with through hole on coil rack core cylinder and end plate, evenly be placed with vertically groove on coil rack core cylinder, and the through hole on the core cylinder be distributed in groove.This structure is specifically designed to Nb
3The curing filler material dipping of Sn superconducting coil.Due to Nb
3The Sn superconducting line need just can show superconductivity after heat treatment, and after heat treatment, the superconducting line material itself is highly brittle and very easily loses, and need to before heat treatment, complete Nb
3The Sn coil winding.Because curing filler material can lose efficacy under hot environment, therefore must be cured again solidifying of packing material in heat treatment later.Can pass smoothly the superconducting line layer in order to make curing filler material, be penetrated into superconducting coil inside, so need to many through holes and groove be set on the superconducting magnet coil skeleton, be convenient to the liquid curing packing material and flow between the superconducting line gap in coil, complete the curing filler material dipping.
Characteristics of the present invention are: new ceramics structural material and special coil structural design are merged to one, propose a kind of new superconducting magnet line solenoid coil structures.Can be for Nb
3Sn, Nb
3The preparation of the various superconducting coils such as Al, Nb Ti and other superconducting coils.This loop construction excellent insulation performance, and eliminated the hidden danger of skeleton magnetic.Framework material adopts the nanocrystalline complex phase processable ceramic that contains the hexagonal boron nitride second-phase, and high temperature heat-resistant is processed and the low temperature cold thermal cycle impact, possesses high strength and certain toughness.And the shrinkage coefficient, lower than metal material, can make coil banding skeleton at low temperatures, reduce the probability of superconducting coil fine motion quench under electromagnetic force.Wherein, because this superconducting magnet coil structure adopts resistant to elevated temperatures ceramic material, prepare skeleton, be specially adapted to Nb
3During Sn superconducting coil high-temperature heat treatment to the requirement of skeleton material.
The accompanying drawing explanation
Fig. 1 ceramic skeleton superconducting magnet line solenoid coil structures 1/2 schematic cross-section;
Ceramic skeleton embodiment one schematic diagram of Fig. 2 ceramic skeleton superconducting magnet solenoid coil;
Ceramic skeleton embodiment two schematic diagrames of Fig. 3 ceramic skeleton superconducting magnet solenoid coil;
The outlet structure schematic diagram of Fig. 4 ceramic skeleton superconducting magnet solenoid coil end;
Fig. 5 ceramic skeleton superconducting magnet solenoid coil end plate positioning blind pore structure schematic diagram;
The U(I of Fig. 6 ceramic skeleton superconducting magnet solenoid coil energising of the present invention test) curve.
Embodiment
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is ceramic skeleton superconducting magnet line solenoid coil structures 1/2 schematic cross-section.As shown in Figure 1, the structure of superconducting magnet coil is respectively from the inside to the outside: coil rack, superconducting coil and colligation layer.Inside, superconducting coil gap between coil rack and colligation layer is full of curing filler material.Coil rack consists of with the end plate that is positioned at core cylinder two ends the core cylinder of straight tube-like.The ceramic material that coil rack adopts is the nanocrystalline complex phase processable ceramic that contains the hexagonal boron nitride second-phase, and its parent phase ceramic material is aluminium oxide or aluminium nitride.Curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with spherical ceramic particles, the spherical ceramic particles material is boron nitride or aluminium nitride, the spherical ceramic particles diameter is the 50-300 micron, and the quality proportioning of spherical ceramic particles and low temperature polyurethane modified epoxy resin material is 1:6.
The schematic diagram of the ceramic skeleton embodiment one that Fig. 2 is ceramic skeleton superconducting magnet solenoid coil.This skeleton is applicable to adopt the superconducting magnet coil of the vacuum-impregnated curing mode of curing filler material, as Nb
3Sn, NbTi and other superconducting coils, be specially adapted to Nb
3The Sn superconducting coil.Due to Nb
3The Sn superconducting line need just can show superconductivity after heat treatment, and after heat treatment, the superconducting line material itself is highly brittle and very easily loses, and need to before heat treatment, complete Nb
3Sn coil winding and fixing.Because the basis material of curing filler material is epoxy resin, it can lose efficacy under hot environment, therefore must be cured the vacuum impregnation of packing material in heat treatment curing later again.In order to make curing filler material can immerse smoothly the superconducting line layer, be penetrated into superconducting coil inside, evenly be placed with through hole on the core cylinder of coil rack and end plate, evenly be placed with vertically groove on the core cylinder of coil rack, and the through hole on the core cylinder is distributed in groove, is convenient to the liquid curing packing material and flows.In addition, be provided with oblique wire hole on the end plate of this ceramic skeleton, pass in and out the use of skeleton for the superconducting line of superconducting coil.As shown in Figure 2.
The schematic diagram of the ceramic skeleton embodiment two that Fig. 3 is ceramic skeleton superconducting magnet solenoid coil.This skeleton is applicable to not adopt the superconducting magnet coil of the vacuum-impregnated curing mode of curing filler material, as the coiling of NbTi and other superconducting coils.Because NbTi and other superconductions possess, certain mould, toughness, can carry out coiling, and need to not heat-treat after coiling, so the dipping of curing filler material is to complete in the process of successively coiling of superconducting line simultaneously.So need on the superconducting magnet coil skeleton, not be designed for through hole or the groove of curing filler material impregnation technology.Be provided with oblique wire hole on the end plate of this ceramic skeleton, pass in and out the use of skeleton for the superconducting line of superconducting coil.As shown in Figure 3.
The outlet structure schematic diagram that Fig. 4 is ceramic skeleton superconducting magnet solenoid coil end.Be provided with oblique wire hole on the end plate of coil rack, wire hole in the position of end plate inboard corresponding to the residing position of superconducting line outlet in superconducting coil, and the direction of wire hole is consistent with the coiling tangential direction of superconducting line outlet in superconducting coil, superconducting line passes the skeleton end plate by wire hole, guides the coil rack outside into.This structure has guaranteed that superconducting line goes out kinking damage and the wearing and tearing that superconducting line can not occur in line process, has ensured the normal usage energy of superconducting coil.
Figure 5 shows that ceramic skeleton superconducting magnet solenoid coil end plate positioning blind pore structure schematic diagram.Superconducting magnet coil is in the assembling process of low-temperature (low temperature) vessel, and, with in the nested assembling process of other coils, all needs the locus of accurate set winding.Can complete the accurate space orientation of coil by the location blind hole that is arranged on the superconducting magnet coil end plate.
Embodiment 1:
The Nb of a ceramic skeleton of preparation
3Sn superconducting magnet solenoid coil, adopt the mode of the superconducting magnet solenoid coil ceramic skeleton embodiment one shown in Fig. 2 to carry out.Adopt Nb of the present invention
3The completing steps of Sn superconducting magnet line solenoid coil structures is sequentially: adopt the Nb that the protection of refractory glass fibre insulating sleeve is arranged
3The Sn superconducting line carries out coil winding, at first by Nb
3Sn superconducting line one end, through the reserved wire hole of superconducting magnet coil end, is fixed on the piecing devices position of coil rack outside; Then by Nb
3The Sn superconducting line pursues circle, closely is wound on above the superconducting magnet coil skeleton layer by layer; After coiling completes by Nb
3Sn superconducting line leading-out terminal passes another reserved wire hole of superconducting magnet coil end, is fixed on the piecing devices position of coil rack outside; Evenly be placed with through hole on the core cylinder of coil rack and end plate, evenly be placed with vertically groove on the core cylinder of coil rack, and the through hole on the core cylinder be distributed in groove; High-temperature insulation colligation layer in the outside colligation specific thicknesses of superconducting coil; By Nb
3Sn superconducting magnet coil integral body is heat-treated; Subsequently to Nb
3The Sn superconducting magnet coil is cured the packing material dipping and solidifies and processes; Treat after coil solidifies to complete the preparation of ceramic skeleton superconducting magnet solenoid coil of the present invention.In the present embodiment, the nanocrystalline complex phase processable ceramic that the coil rack material selection contains the hexagonal boron nitride second-phase, its parent phase ceramic material is aluminium oxide, second-phase dispersion is distributed in the crystal grain of parent phase pottery and on crystal boundary.Curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with the spherical boron nitride ceramic particle.The spherical ceramic particles diameter is 50 microns, and the quality proportioning of spherical ceramic particles and low temperature polyurethane modified epoxy resin material is 1:6.
Adopt ceramic skeleton superconducting magnet line solenoid coil structures of the present invention to prepare Nb
3Sn superconducting magnet solenoid coil, and be placed in liquid helium vessel and carried out low temperature energising test.The U(I that Fig. 6 is this ceramic skeleton superconducting magnet solenoid coil energising test) curve.Wherein, internal coil diameter 15mm, external diameter 24mm, long 30mm.Nb
3The naked diameter 0.9mm of Sn superconducting line, coil integral body is formed by the coiling of 5 layer of 137 circle superconducting line.Through experimental test, coil, under 4T back surface field condition, all reaches not quench of 490A with the forward and reverse excitation of 10A/s speed, as shown in Figure 6, has shown good superconducting characteristic.
Embodiment 2:
The NbTi superconducting magnet solenoid coil of a ceramic skeleton of preparation, adopt the superconducting magnet solenoid coil ceramic skeleton embodiment two shown in Fig. 3.Adopt the completing steps of NbTi superconducting coil structure of the present invention to be sequentially: at first an end of superconducting line to be passed to the reserved wire hole in superconducting magnet coil end, be fixed on the piecing devices position of coil rack outside; Then by superconducting line by circle, layer by layer closely be wound on the superconducting magnet coil skeleton above.In the superconducting line coiling, the liquid curing packing material is evenly brushed above the wire of section in coil, fill in the gap between full coil inside superconducting line; Another wire hole of after coiling completes, the superconducting line leading-out terminal being reserved through the superconducting magnet coil end, be fixed on the outside special setting position of coil rack; Insulated binding layer in the outside colligation specific thicknesses of superconducting coil; Treat after coil solidifies to complete the preparation of ceramic skeleton superconducting magnet solenoid coil of the present invention.In the present embodiment, the framework material of superconducting magnet coil is chosen the nanocrystalline complex phase processable ceramic that contains the hexagonal boron nitride second-phase, and its parent phase ceramic material is aluminium nitride, and its second-phase dispersion is distributed in the crystal grain of parent phase pottery and on crystal boundary.Curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with the spherical aluminum nitride ceramic particle.The spherical ceramic particles diameter is 50 microns, and the quality proportioning of spherical ceramic particles and low temperature polyurethane modified epoxy resin material is 1:6.This superconducting magnet solenoid coil internal diameter 15mm, external diameter 24mm, long 30mm.NbTi superconducting line insulation diameter 1.0mm, coil integral body is formed by the coiling of 5 layer of 148 circle superconducting line.Possessed good superconducting characteristic by the low temperature test chart open-wire line circle of switching on.
Embodiment 3:
The Nb of a ceramic skeleton of preparation
3Sn superconducting magnet solenoid coil.Preparation method, technological parameter are identical with the described method of embodiment 1, and difference only is that curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with the spherical boron nitride ceramic particle, and spherical boron nitride ceramic particle diameter is 120 microns.This Nb
3Sn superconducting magnet solenoid coil, by the low temperature test chart open-wire line circle 490A quench not under 4T back surface field condition of switching on, has possessed good superconducting characteristic.
Embodiment 4:
The Nb of a ceramic skeleton of preparation
3Sn superconducting magnet solenoid coil.Preparation method, technological parameter are identical with the described method of embodiment 1, and difference only is that curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with the spherical boron nitride ceramic particle, and spherical boron nitride ceramic particle diameter is 300 microns.This Nb
3Sn superconducting magnet solenoid coil, by the low temperature test chart open-wire line circle 490A quench not under 4T back surface field condition of switching on, has possessed good superconducting characteristic.
Embodiment 5:
The NbTi superconducting magnet solenoid coil of a ceramic skeleton of preparation, preparation method, technological parameter are identical with the described method of embodiment 2, difference only is that curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with the spherical aluminum nitride ceramic particle, and spherical aluminum nitride ceramic particle diameter is 300 microns.This superconducting magnet solenoid coil internal diameter 15mm, external diameter 24mm, long 30mm.NbTi superconducting line insulation diameter 1.0mm, coil integral body is formed by the coiling of 5 layer of 148 circle superconducting line.Possessed good superconducting characteristic by the low temperature test chart open-wire line circle of switching on.
Embodiment 6:
The NbTi superconducting magnet solenoid coil of a ceramic skeleton of preparation, preparation method, technological parameter are identical with the described method of embodiment 2, difference only is that curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with the spherical aluminum nitride ceramic particle, and spherical aluminum nitride ceramic particle diameter is 150 microns.This superconducting magnet solenoid coil internal diameter 15mm, external diameter 24mm, long 30mm.NbTi superconducting line insulation diameter 1.0mm, coil integral body is formed by the coiling of 5 layer of 148 circle superconducting line.Possessed good superconducting characteristic by the low temperature test chart open-wire line circle of switching on.
Claims (4)
1. a ceramic skeleton superconducting magnet solenoid coil, is characterized in that described superconducting magnet solenoid coil is pursued circle, closely is wound on coil rack and forms layer by layer by superconducting line; Described coil rack consists of straight tube-like core cylinder and the end plate that is positioned at core cylinder two ends, and the coil rack material is ceramic material; In described superconducting magnet solenoid coil disposed outside, the colligation layer is arranged, in the superconducting magnet line solenoid ring gap between coil rack and colligation layer, be full of curing filler material; The arranged outside of the end plate of described coil rack has the location blind hole; Be provided with oblique wire hole on the end plate of described coil rack, described wire hole is in the position of end plate inboard corresponding to the residing position of superconducting line outlet in the superconducting magnet solenoid coil, and the direction of wire hole is consistent with the coiling tangential direction of superconducting line outlet in the superconducting magnet solenoid coil; Described superconducting line through the coil rack end plate, is guided the coil rack outside by described wire hole into;
The ceramic material that described coil rack adopts is the nanocrystalline complex phase processable ceramic that contains the hexagonal boron nitride second-phase, and its parent phase ceramic material is aluminium oxide or aluminium nitride;
Described curing filler material is the low temperature polyurethane modified epoxy resin material that is mixed with spherical ceramic particles;
Described spherical ceramic particles material is boron nitride or aluminium nitride, and the spherical ceramic particles diameter is the 50-300 micron, and the mass ratio of spherical ceramic particles and low temperature polyurethane modified epoxy resin material is 1:6.
2. ceramic skeleton superconducting magnet solenoid coil according to claim 1, it is characterized in that evenly being placed with through hole on the core cylinder of described coil rack and end plate, evenly be placed with vertically groove on the core cylinder of coil rack, and the through hole on the core cylinder is distributed in groove.
3. ceramic skeleton superconducting magnet solenoid coil according to claim 1, it is characterized in that the method for filling curing filler material in the superconducting magnet line solenoid ring gap between coil rack and colligation layer is: brush liquid curing filler material in described superconducting magnet line solenoid ring gap while wind the line in superconducting magnet solenoid coil winding process, complete the filling of liquid curing packing material in the coiling of superconducting magnet solenoid coil; Be cured processing after coiling.
4. ceramic skeleton superconducting magnet solenoid coil according to claim 2, it is characterized in that in the superconducting magnet line solenoid ring gap between coil rack and colligation layer that the method for filling full curing filler material is: the coiling of superconducting magnet solenoid coil complete and fixing after, by described through hole and groove, described superconducting magnet solenoid coil is carried out to vacuum impregnation, the liquid curing packing material is filled to the gap in full superconducting magnet solenoid coil, and solidify processing.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377046A (en) * | 2001-03-22 | 2002-10-30 | 三菱电机株式会社 | Electromagnetic spool device and manufacturing method thereof |
| CN1154127C (en) * | 1996-11-29 | 2004-06-16 | 太阳诱电株式会社 | Wire wound electronic component and method for manfacturing the same |
| CN1658343A (en) * | 2004-02-16 | 2005-08-24 | 特变电工股份有限公司 | Reinforcing device and method for high-temp superconducting coil |
| CN1933044A (en) * | 2005-09-05 | 2007-03-21 | 株式会社神户制钢所 | Bobbin for superconducting coil, and superconducting solenoid coil |
| CN102496439A (en) * | 2011-12-01 | 2012-06-13 | 西部超导材料科技有限公司 | Framework applied to superconductive solenoid magnet |
-
2012
- 2012-07-09 CN CN2012102374772A patent/CN102723161B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1154127C (en) * | 1996-11-29 | 2004-06-16 | 太阳诱电株式会社 | Wire wound electronic component and method for manfacturing the same |
| CN1377046A (en) * | 2001-03-22 | 2002-10-30 | 三菱电机株式会社 | Electromagnetic spool device and manufacturing method thereof |
| CN1658343A (en) * | 2004-02-16 | 2005-08-24 | 特变电工股份有限公司 | Reinforcing device and method for high-temp superconducting coil |
| CN1933044A (en) * | 2005-09-05 | 2007-03-21 | 株式会社神户制钢所 | Bobbin for superconducting coil, and superconducting solenoid coil |
| CN102496439A (en) * | 2011-12-01 | 2012-06-13 | 西部超导材料科技有限公司 | Framework applied to superconductive solenoid magnet |
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