CN109545539A - A kind of three tin superconducting wire circle production method of exoskeletal niobium - Google Patents
A kind of three tin superconducting wire circle production method of exoskeletal niobium Download PDFInfo
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- CN109545539A CN109545539A CN201910065584.3A CN201910065584A CN109545539A CN 109545539 A CN109545539 A CN 109545539A CN 201910065584 A CN201910065584 A CN 201910065584A CN 109545539 A CN109545539 A CN 109545539A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/048—Superconductive coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/098—Mandrels; Formers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
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Abstract
A kind of three tin superconducting wire circle production method of exoskeletal niobium, it is the skeleton of coiling that being secured with nuts, which assembles cylindrical quartz pipe (1) and two end plates flange (2),.Quartzy skeleton is mounted on three tin superconducting wire of coiling niobium on coil winding machine.When interlayer thread-changing, in one layer of glass wool cloth of upper one layer of niobium, three tin superconducting wire area mat.After the completion of niobium three tin superconducting wire circle (4) coiling, the outlet at the outlet hole (9) of end plate.In the outermost layer half lap wrapping glass wool cloth of three tin superconducting wire circle (4) of niobium.Then layer (5) are bound in outermost coiling.After the completion of binding layer (5) coiling, the three tin superconducting wire circle of niobium with tooling is put into vacuum heat treatment furnace and carries out vacuum heat treatment and vacuum pressure impregnation, finally carries out the curing process of epoxy resin.Quartz ampoule (1) is removed after solidification, obtains the three tin superconducting wire circle (4) of niobium without skeleton.
Description
Technical field
The present invention relates to a kind of superconducting coil production methods.
Background technique
Superconducting line resistance under certain critical-temperature is zero, after superconducting line is turned to superconducting coil, in critical-temperature
Under can bear biggish electric current, to generate high-intensity magnetic field.This characteristic of based superconductive coil can design and manufacture superconduction
Magnet designs the number of plies, the number of turns etc. of superconducting coil according to required magnetic field size, uniformity etc..Superconducting magnet is by various shapes
The superconducting coil of shape forms, and it is that superconducting line is wound on to cylinder that the most common superconducting coil, which is the tubular superconducting coil of helical,
Above skeleton.The general superconducting magnet for generating high-intensity magnetic field is to be combined into interpolation magnet by the superconducting coil nesting of different-diameter,
Then series connection generates high-intensity magnetic field after being powered.
Currently, being commonly three tin superconducting wire circle of niobium titanium superconducting coil and niobium in low-temperature superconducting coil.Both superconducting lines
Circle preparation process is relatively easy, and service performance is excellent, is widely used in high-intensity magnetic field field.Three tin superconducting wire circle of niobium faces
Boundary's temperature is higher, is 18.1K, critical current density is big, so can generate higher magnetic field compared with niobium titanium wire circle.But three tin of niobium
The preparation process of superconducting coil is relatively complicated.The preparation of three tin superconducting wire circle of general niobium needs after the completion of coil winding
By prolonged high-temperature heat treatment, is reacted by High temperature diffusion and generates three tin superconducting phase of niobium, finally carry out vacuum pressure impregnation,
Epoxy resin and superconducting line are impregnated into an entirety.But the number of plies of three tin superconducting wire circle of general niobium should not be too large, number of plies mistake
Big superconducting coil is unfavorable for vacuum impregnation, and epoxy resin is difficult to be impregnated into coil internal layer, be easy to cause epoxy impregnation insufficient,
Partial region does not come into full contact with epoxy resin, this will cause serious consequence in superconducting coil excitation galvanization.Such as
Superconducting coil dipping not exclusively, when superconducting line passes through powerful electric current, will receive powerful electromagnetic force under high-intensity magnetic field and generate fortune
It is dynamic, then cause superconducting coil and quench, estimated current value and central magnetic field cannot be reached.So three tin superconducting wire circle of general niobium
The number of plies it is less, the superconducting coil interpolation for needing the three tin superconducting wire circle of niobium of higher level number to need multiple low layer numbers is nested, combination
At the superconducting coil of high-layer.And each superconducting coil requires to be wound on a skeleton, this is stringent to space requirement super
Loop is a unfavorable factor.So the arrangement density of superconducting line is improved in needing in a limited space as far as possible, thus
The current density of superconducting line totality is improved, and then improves central magnetic field.
Currently, three tin superconducting magnet of niobium is usually that conducting wire is wound on metallic framework, which is subjected to centainly
Coiling pretightning force, and good mechanical property can be kept at high temperature, and cannot have magnetism.Three tin superconducting wire master of niobium
Will there are two types of, it is a kind of for Nei Xifa manufacture three tin superconducting wire of niobium, another kind be Properlies of Bronze Route manufacture three tin superconducting wire of niobium.Interior tin
Need in the three tin superconducting wire heat treatment process of niobium of method in 700 DEG C or less high-temperature heat treatments, total heat-treatment time be up to 20 days with
On.The three tin superconducting wire heat treatment temperature of niobium of Properlies of Bronze Route is higher, needs to be heat-treated progress high temperature at a high temperature of close to 1000 DEG C
Diffusion reaction generates A15 superconducting phase.Therefore the skeleton of three tin superconducting wire circle of niobium requires the indeformable energy of long-term high temperature resistant
Power, the materials such as many framework materials such as aluminium alloy, copper alloy for niobium titanium superconducting coil are not able to satisfy so stringent heat
Treatment conditions.
The three common metallic framework of tin superconducting wire circle of niobium is generally 304,316 stainless steels etc..When the frame design of stainless steel,
The design of wall thickness is a crucial parameter, and wall thickness is too thin, and long heat treatment can be deformed at high temperature, and wall thickness is too thick,
The volume that superconducting line can then be occupied reduces total current density, and the cooling of coil is influenced in superconducting coil temperature-fall period
Effect.Therefore be difficult to design the skeleton thickness of optimization make full use of skeleton supporting role and it is as small as possible influence it is total
Current density.
In addition, the stainless steel insert surface of three tin superconducting wire circle of niobium needs thermal spraying insulating coating resistant to high temperature, to avoid
Three tin superconducting wire of niobium and stainless steel insert short circuit, insulating coating needs handle with caution with corner at the edge of skeleton, otherwise exist
These key positions can become the tender spots of coil insulation, and in three tin superconducting wire circle galvanization of niobium, superconducting line is powerful
It is easy to cause on these tender spots under electromagnetic force and quench, cause serious consequence.Meanwhile to three tin superconducting wire of niobium
When circle cools to liquid helium temperature, insulating coating is unfavorable for the cooling effect of three tin superconducting wire circle of niobium.
Summary of the invention
The purpose of the present invention is overcome the prior art using the three tin superconducting wire circle of niobium of stainless steel insert coiling for a long time
The problem on deformation occurred when high-temperature heat treatment and skeleton itself can reduce the overall current density problem of three tin superconducting wire circle of niobium,
And there is short-circuit hidden danger in existing three tin superconducting magnet framework of niobium, propose a kind of system of three tin superconducting wire circle of exoskeletal niobium
Make method.The present invention can make three tin superconducting wire circle of niobium not deform substantially after long-time high-temperature heat treatment, coil vacuum
It can remove skeleton after impregnation, improve the arrangement density of superconducting line, and then improve the total current density of superconducting coil.Meanwhile
Three tin superconducting wire coil structures of niobium of the present invention are simple, and cost of manufacture is cheap, is easy to industrialization.
The purpose of the present invention is what is be achieved through the following technical solutions.
Not thermally treated three tin conducting wire of niobium is wound on quartzy skeleton by the present invention, then anti-by high-temperature heat treatment
It answers, quartzy skeleton is removed after the vacuum impregnation of epoxy resin, obtains exoskeletal three tin superconducting wire circle of niobium.
The present invention fastens two end plate flanges by screw rod at cylindrical quartz ampoule both ends respectively, as three tin superconduction of niobium
The skeleton of coil.Cylindrical quartz pipe carries out centralized positioning by the locating slot in two end plate flanges.Before coiling, in quartz ampoule
Upper half lap wrapping layer glass silk cloth keeps the three tin superconducting wire circle inner surface of niobium of final molding smooth smooth.It then will not
The three tin conducting wire of niobium of reaction uniformly, is closely wound on quartz ampoule.
Entrance hole and outlet hole, the position of entrance hole and quartzy skeleton are provided in the end plate flanges of three tin superconducting wire circle of niobium
Plane tangent, be wound on the first circle conducting wire on quartzy skeleton by entrance hole.The position of outlet hole and three tin superconducting wire of niobium
Outermost surface it is tangent, pass through outlet hole outlet after the completion of coil winding.
In three tin superconducting wire winding process of niobium, in one layer of glass wool cloth of every interlayer place mat, be conducive to the layer of superconducting coil
Between insulation and epoxy resin vacuum impregnation, the bond strength of epoxy resin and the intensity of superconducting coil entirety can be increased.
After the completion of three tin superconducting wire coiling of niobium, layer is bound in outermost layer coiling.In three tin superconducting wire circle galvanization of niobium,
It will receive outwardly radial power under the action of electromagnetic force and expand, outermost binding layer will limit three tin superconducting wire circle of niobium
Expansion reduces the possibility that three tin superconducting wire circle of niobium quenches.
The three solder circle of niobium with tooling that coiling is completed carries out high-temperature heat treatment, since heat treatment temperature is higher, institute
There is tooling accessory that should use 700 DEG C to 1000 DEG C of heatproof of material.The thermal expansion coefficient of quartz ampoule is lower, about 0.51E-7, far
Lower than the thermal expansion coefficient of stainless steel, about 16E-6.In high-temperature heat treatment process, quartzy thermal deformation is far below stainless steel
Thermal deformation, the three tin superconducting wire cycle basis of niobium being finally made originally will not deform, and keep original shape.
The making step of the exoskeletal three tin superconducting wire circle of niobium of the present invention is as follows:
1, cylindrical quartz pipe is connect with two end plate flanges, in two end plate methods with cylindrical quartz pipe junction
The slot of a circular ring shape is opened on orchid respectively, cylindrical quartz pipe is embedded in annular groove, the quartz as three tin superconducting wire circle of niobium
Skeleton.The center of two end plate flanges is provided with through-hole, and through hole installs a screw rod, is mounted on quartzy skeleton by the screw rod
Accurate solid matter coiling is carried out on coil winding machine.It is logical that two end plate flanges and inner surface of silica tube the tangent are respectively provided with a circumferential circle
Hole, through-hole number are 3 to 8.The through-hole makes cylindrical quartz pipe and two end plate methods for installing positioning and clamping screw
It blue central alignment and is fastenedly connected.
2, the quartzy skeleton assembled is mounted on coil winding machine.In the outer surface half lap wrapping 2 of cylindrical quartz pipe
Layer glass wool cloth, increases the frictional force when coiling of cylindrical quartz pipe surface, while guaranteeing subsequent three tin superconducting wire circle of niobium true
After empty epoxy resin-impregnated, inner surface is flat and smooth, while increasing the binding force and integral strength of three tin superconducting wire circle of niobium.
3, start the close of three tin superconducting wire of first layer niobium after the end plate entrance hole inlet wire of three tin superconducting wire circle of niobium, inlet wire
Arrange coiling.When interlayer thread-changing, in one layer of glass wool cloth of upper one layer of niobium, three tin superconducting wire area mat, for increasing interlayer superconduction
The intensity of line improves the dipping effect of subsequent vacuum impregnation epoxy resin.
4, after the completion of three tin superconducting wire coiling of niobium, the outlet at the outlet hole of end plate.In the outermost layer of three tin superconducting wire of niobium
2 to 10 layers of glass wool cloth of half lap wrapping.
5, after the completion of glass wool cloth coiling, outermost coiling binds layer.Bind the material selection copper wire or non-magnetic rustproof of layer
Steel wire, and the material for binding layer cannot contain the material of the non-refractories such as insulated paint, and the interlayer for binding layer does not need place mat glass
Silk cloth.The number of plies for binding layer is 2 to 6 layers.
6, after the completion of coiling, the three tin superconducting wire circle of niobium with tooling is put into vacuum heat treatment furnace and is carried out at Vacuum Heat
Reason.The vacuum degree of vacuum heat treatment is lower than 1E-4Pa.Vacuum pressure is carried out to three tin superconducting wire circle of niobium after the completion of vacuum heat treatment
Dipping, dipping vacuum degree make epoxy resin be impregnated into the interlayer and turn-to-turn of three tin superconducting wire of niobium, pass through epoxy resin lower than 10Pa.
And the combination of glass wool cloth makes three tin superconducting wire circle of niobium become an entirety, finally carries out the solidification of epoxy resin.
7, three tin superconducting wire circle of niobium is taken out after the completion of solidification, after clearing up extra epoxy resin, dismounts quartzy skeleton both ends
Flange.The quartz ampoule at center is scratched with glass cutter, is slowly removed the entire quartz ampoule at center, is finally obtained the niobium without skeleton
Three tin superconducting wire circles.
The quartz ampoule that the present invention uses has the performance of high temperature resistance, and the softening point of quartz glass is about 1730 DEG C, Neng Gou
1200 DEG C of long-times use, for the heat treatment temperature of three tin superconducting wire circle of niobium, either three tin superconducting wire of Nei Xifa niobium
1000 DEG C of high temperature below that 700 DEG C needed, three tin superconducting wire of high temperature or Properlies of Bronze Route niobium below needs, can fit
It answers.Meanwhile the good heat stability of quartz ampoule, the quartzy coefficient of expansion is low, about 0.51E-7, can sustain violent temperature
Variation, high/low temperature thermal shock quartz ampoule will not be burst.In addition, the electrical insulation capability of quartz is superior, it is good insulating materials,
Solves the problems, such as the insulation rapid wear of three tin superconducting wire of niobium and metallic framework.
Three tin superconducting wire circle of exoskeletal niobium prepared by the present invention, after removing quartzy skeleton, only remaining three tin of niobium and epoxy
Resin compounded at smooth cylindrical superconducting coil.It is easy to prepare multiple three tin superconducting wires of exoskeletal niobium using the present invention
Circle is combined into large-scale three tin superconducting wire circle of multilayer niobium, solves traditional niobium three then according to diameter successively nested interpolation
Tin superconducting wire circle is difficult to be made into multilayered structure, traditional stainless steel insert it is easily-deformable, insulate rapid wear the problem of, can be limited
Space give full play to the current density of three tin superconducting wire of niobium, while reducing refrigerating capacity, be particularly suitable for needing to generate high critical magnetic
The high-intensity magnetic field field of field.
Thermal expansion coefficient is small at high temperature for the quartz ampoule, about 0.51E-7, about the 30 of stainless steel insert/
One, it will not deform substantially after long-time high-temperature heat treatment, and be able to bear certain compression, therefore the present invention
Three tin superconducting wire circle of niobium is prepared using quartzy skeleton, will not influence the shape of final superconducting coil after long-time high-temperature heat treatment
Shape.And the three tin superconducting wire circle of niobium of stainless steel insert coiling is used, it is pre-tightened by long-time high-temperature heat treatment back skeleton in conducting wire
A degree of convex deformation can be generated under the action of power in the middle part of skeleton, this will be difficult in multiple coil interpolation engagement process
Assembly.
In addition, the totality that the three tin superconducting wire circle of exoskeletal niobium of the method for the present invention production reduces superconducting magnet is cold heavy, no
It needs to cool to defined temperature range to the skeleton of superconducting coil.Meanwhile using quartz ampoule as three tin superconducting wire circle of niobium
Skeleton will not encounter the short circuit problem of niobium three tin superconducting wires and skeleton in coil-winding process, do not need to do skeleton and insulate
Processing, simple process and low cost.
Detailed description of the invention
Three tin superconducting wire circle schematic diagram of niobium Fig. 1 of the invention；
Three tin superconducting wire ring framework schematic diagram of niobium Fig. 2 of the invention；
Three tin superconducting wire circle end plate schematic diagram of niobium Fig. 3 of the invention；
Three tin superconducting wire circle band tooling skeleton schematic diagram of niobium Fig. 4 of the invention；
Three tin superconducting wire circle schematic diagram of exoskeletal niobium Fig. 5 of the invention.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the three tin superconducting wire circle of exoskeletal niobium that the present invention makes includes cylindrical quartz pipe 1, end plate flanges
2, glass fiber layer of cloth 3, three tin superconducting wire circle 4 of niobium, binding layer 5, center bolt 6, fastening screw 7 etc..Cylindrical quartz pipe 1 passes through
The slot 10 of circular ring shape in two end plate flanges 2, connect with two end plates flange 2.A piece screw rod is installed at 2 center of two end plates flange
6, and be secured with nuts at screw rod both ends.Screw rod 7 is installed around center bolt 6 on two end plates flange, is secured with nuts, makes to justify
Cylindricality quartz ampoule 1 and two end plates flange 2 are assembled into the skeleton of a coiling.The quartzy skeleton assembled is mounted on coil winding machine
On.In the outer surface half lap wrapping layer glass silk cloth of cylindrical quartz pipe 1.In 8 inlet wire of entrance hole of end plate flanges 2, into
Start the close-packed arrays coiling of three tin superconducting wire of first layer niobium after line.When carrying out interlayer thread-changing, in upper one layer of niobium, three tin superconduction
One layer of glass wool cloth of line area mat.After the completion of three tin superconducting wire circle of niobium, 4 coiling, the outlet at the outlet hole 9 of end plate.In niobium three
The outermost layer half lap wrapping glass wool cloth of tin superconducting wire circle 4.The number of plies of glass wool cloth is 2 to 10 layers.Glass fiber is completed in coiling
After cloth, outermost coiling binds layer 5.The material selection copper wire or non-magnetic rustproof steel wire of layer 5 are bound, and insulated paint cannot be contained
The element of equal non-refractories.The interlayer of binding layer does not need place mat glass wool cloth.The number of plies for binding layer is 2 to 6 layers.
Embodiment one
Cylindrical quartz pipe 1 is connect with two end plates flange 2, two end plates flange 2 and 1 junction of cylindrical quartz pipe open one
The slot of a circular ring shape, cylindrical quartz pipe 1 stick into annular groove 10.2 center of two end plates flange is provided with through-hole, installs in through-hole
A piece M6 screw rod 6.Two end plates flange 2 and 1 inner surface the tangent of cylindrical quartz pipe are respectively provided with a circumferential ring through hole, number of openings
It is 3.3 through-holes, which install 3 M4 screw rods 7, makes cylindrical quartz pipe 1 and 2 center pair of two end plates flange for positioning and clamping
Just and it is fastenedly connected.The quartzy skeleton assembled is mounted on coil winding machine.In the outer surface half-stack package of cylindrical quartz pipe
2 layers of glass wool cloth 3 of coiling.After 8 inlet wire of entrance hole of end plate, inlet wire start three tin superconducting wire of first layer niobium close-packed arrays around
System.When carrying out interlayer thread-changing, in one layer of glass wool cloth of upper one layer of niobium, three tin superconducting wire area mat.Three tin superconducting wire coiling of niobium
After the completion, the outlet at the outlet hole 9 of end plate flanges 2.In 2 layers of glass fiber of outermost layer half lap wrapping of three tin superconducting wire of niobium
Cloth.After glass wool cloth is completed in coiling, outermost coiling binds layer 5.The material selection non-magnetic rustproof steel wire of layer 5 is bound, layer is bound
Interlayer do not need place mat glass wool cloth.The number of plies for binding layer is 6 layers.After the completion of coiling, by three tin superconducting wire of niobium with tooling
Circle 4, which is put into vacuum heat treatment furnace, carries out vacuum heat treatment.Vacuum is carried out to three tin superconducting wire circle 4 of niobium after the completion of vacuum heat treatment
Pressure impregnation finally carries out the curing process of epoxy resin.
Three tin superconducting wire circle 4 of niobium is taken out after the completion of solidification, after cleaning up extra epoxy resin, dismounts quartzy skeleton both ends
Flange 2.The quartz ampoule 1 that center is scratched with glass cutter carefully removes entire quartz ampoule 1, finally obtains the niobium three without skeleton
Tin superconducting wire circle 4.
Embodiment two
Cylindrical quartz pipe 4 is connect by the slot 10 of the circular ring shape on two end plates flange 2 with two end plates flange 2.At both ends
A screw rod 6 is installed by plate flange center, and is secured with nuts at both ends.Two end plates flange center is provided with through-hole, installs in through-hole
One M20 screw rod 7.Two end plates 2 and 1 inner surface the tangent of cylinder quartz ampoule are respectively provided with a circumferential ring through hole, and through-hole number is 6
It is a.Lead to the hole site installs 6 M4 screw rods 7 for positioning and clamping, and makes cylindrical quartz pipe 1 and 2 central alignment of two end plates flange
And it is fastenedly connected.The quartzy skeleton assembled is mounted on coil winding machine.Cylindrical quartz pipe outer surface half-stack package around
Make 2 layers of glass wool cloth 3.After 8 inlet wire of entrance hole of end plate, inlet wire start three tin superconducting wire of first layer niobium close-packed arrays around
System.When carrying out interlayer thread-changing, in one layer of glass wool cloth of upper one layer of niobium, three tin superconducting wire area mat.Three tin superconducting wire circle 4 of niobium
After the completion of coiling, the outlet at the outlet hole 9 of end plate.In 6 layers of glass fiber of outermost layer half lap wrapping of three tin superconducting wire circle 4 of niobium
Cloth.After glass wool cloth is completed in coiling, outermost coiling binds layer 5.Bind the material selection copper wire of layer 5.The number of plies for binding layer is 2
Layer.After the completion of coiling, the three tin superconducting wire circle of niobium with tooling is put into vacuum heat treatment furnace and carries out vacuum heat treatment.Vacuum Heat
Vacuum pressure impregnation is carried out to three tin superconducting wire circle 4 of niobium after the completion of processing, finally carries out the curing process of epoxy resin.
Three tin superconducting wire circle 4 of niobium is taken out after the completion of solidification, after cleaning up extra epoxy resin, dismounts quartzy skeleton both ends
End plate flanges 2.The quartz ampoule 1 that center is scratched with glass cutter carefully removes the entire quartz ampoule 1 at center, finally obtains and be free of
The three tin superconducting wire circle 4 of niobium of skeleton.
Claims (3)
1. a kind of three tin superconducting wire circle production method of exoskeletal niobium, which is characterized in that the production method is by three tin conducting wire of niobium
It is wound on quartzy skeleton (1), is reacted by high-temperature heat treatment, then remove quartzy skeleton after the vacuum impregnation of epoxy resin
(1), exoskeletal three tin superconducting wire circle of niobium is obtained；Steps are as follows:
(1) cylindrical quartz pipe (1) is connect with two end plate flanges (2), in two with cylindrical quartz pipe (1) junction
An annular groove (10) is opened in end plate flanges (2) respectively, cylindrical quartz pipe (1) is embedded in annular groove (10), as niobium
The quartzy skeleton of three tin superconducting wire circles；The center of two end plate flanges (2) is provided with through-hole, and a screw rod (6) is installed in through hole, leads to
It crosses the screw rod (6) and quartzy skeleton is mounted on solid matter coiling on coil winding machine；Two end plate flanges (2) and inner surface of silica tube are tangent
Place is respectively provided with a circumferential ring through hole, and through-hole number is 3 to 8；The through-hole makes cylinder for installing positioning and clamping screw
It the central alignment of shape quartz ampoule and two each end plate flanges and is fastenedly connected；
(2) the quartzy skeleton assembled is mounted on coil winding machine；In 2 layers of glass of outer surface half lap wrapping of cylindrical quartz pipe
Glass silk cloth increases the frictional force when coiling of cylindrical quartz pipe surface, while guaranteeing subsequent three tin superconducting wire circle of niobium in Vaccum Permeating
After stain epoxy resin, inner surface is flat and smooth, and increases the binding force and integral strength of three tin superconducting wire circle of niobium；
(3) start the close row of three tin superconducting wire of first layer niobium after the end plate entrance hole inlet wire of three tin superconducting wire circle of niobium, inlet wire
Column coiling；When interlayer thread-changing, in one layer of glass wool cloth of upper one layer of niobium, three tin superconducting wire area mat, for increasing interlayer superconducting line
Intensity, improve the dipping effect of subsequent vacuum impregnation epoxy resin；
(4) after the completion of three tin superconducting wire coiling of niobium, the outlet at the outlet hole of the end plate；In the outermost layer of three tin superconducting wire of niobium
2 to 10 layers of glass wool cloth of half lap wrapping；
(5) after the completion of glass wool cloth coiling, layer is bound in outermost coiling；Bind the material selection copper wire or magnetism-free stainless steel of layer
Line, the number of plies for binding layer is 2 to 6 layers；
(6) after the completion of coiling, the three tin superconducting wire circle of niobium with tooling is put into vacuum heat treatment furnace and is heat-treated；It has been heat-treated
Vacuum pressure impregnation is carried out to three tin superconducting wire circle of niobium at rear, finally carries out the solidification of epoxy resin；
(7) three tin superconducting wire circle of niobium is taken out after the completion of solidification, after clearing up extra epoxy resin, dismounts the method at quartzy skeleton both ends
It is blue；The quartz ampoule at center is scratched with glass cutter, removal quartz is in control the three tin superconducting wire circle of niobium without skeleton.
2. three tin superconducting wire circle production method of exoskeletal niobium described in accordance with the claim 1, which is characterized in that three tin of niobium
Entrance hole (8) and outlet hole (9), the surface of the position of entrance hole (8) and quartzy skeleton are provided in the end plate flanges of superconducting coil
It is tangent, it is wound on the first circle conducting wire on quartzy skeleton by entrance hole；The position of outlet hole (9) and three tin superconducting wire of niobium are most
Superficies are tangent, pass through outlet hole outlet after the completion of coil winding.
3. three tin superconducting wire circle production method of exoskeletal niobium described in accordance with the claim 1, which is characterized in that multiple the methods
The three tin superconducting wire circle of exoskeletal niobium of production is combined into three tin superconducting wire circle of multilayer niobium according to diameter successively nested interpolation.
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| CN109979749A (en) * | 2019-05-15 | 2019-07-05 | 无锡富乐电子有限公司 | A kind of fast demoulding light-type dry-type transformer winding former and its manufacturing process |
| CN111243854A (en) * | 2020-04-28 | 2020-06-05 | 山东奥新医疗科技有限公司 | Magnetic resonance superconducting coil winding method and magnetic resonance superconducting coil |
| CN114005671A (en) * | 2021-11-24 | 2022-02-01 | 西北有色金属研究院 | Adopts uninsulated MgB2Method for winding superconducting magnet by wire |
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| CN109979749A (en) * | 2019-05-15 | 2019-07-05 | 无锡富乐电子有限公司 | A kind of fast demoulding light-type dry-type transformer winding former and its manufacturing process |
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| CN114005671A (en) * | 2021-11-24 | 2022-02-01 | 西北有色金属研究院 | Adopts uninsulated MgB2Method for winding superconducting magnet by wire |
| CN114300213A (en) * | 2022-01-24 | 2022-04-08 | 中国科学院电工研究所 | High-thermal-conductivity niobium-tin superconducting coil and manufacturing method thereof |
| CN114300213B (en) * | 2022-01-24 | 2024-01-26 | 中国科学院电工研究所 | High-thermal-conductivity niobium three-tin superconducting coil and manufacturing method thereof |
| CN114496453A (en) * | 2022-01-29 | 2022-05-13 | 中国科学院电工研究所 | Niobium-tin superconducting magnet with quench protection and manufacturing method thereof |
| CN114496453B (en) * | 2022-01-29 | 2023-12-22 | 中国科学院电工研究所 | Niobium three-tin superconducting magnet with quench protection and manufacturing method thereof |
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