Device and its detection method for high-temperature superconductor band Mechanics Performance TestingTechnical field
The present invention relates to superconducting tape technical field, in particular it relates to which a kind of be applied to superconducting tape Mechanics Performance TestingEquipment.
Background technology
High-temperature superconductor has a very wide range of applications, field be related to industry, power system, motor, medical treatment, high-energy physics,Traffic, Aero-Space, military affairs etc..The forceful electric power application of high-temperature superconductor relates generally to high current and highfield.Specific product includesHigh temperature superconducting malfunction current limiter, energy storage device, transformer, generator, nuclear magnetic resonance, magnetic separating apparatus, motor, magnetic suspension, electricityCable, current feed, sensing heating, high energy acclerator, electromagnetic ejection system, magnetic artillery, engine, π medium generators etc..At thisAmong a little applications, most is exactly the coil that high-temperature superconductor band is coiled into.
High-temperature superconductor band has three most basic critical parameters, including critical current, critical-temperature and critical magnetic field.After general material is determined, critical-temperature and critical magnetic field just are determined, and critical current is the weight for characterizing strip qualityParameter is wanted, because which defines the electric current that band can be carried, it embodies the electric property of band.High-temperature superconductor band is oneKind of coating structure, whole band is that not allow progress to bend either bending radius too small, it is impossible to by excessive axial stress,Delamination stress or shear stress, otherwise can destroy the arrangement of atom in superconducting layer, ultimately result in losing or losing for superconductivityLose.
But no matter band is during coil is fabricated to or during use, answering for outside can be born alwaysPower.Band is made band by electromagnetic force during coiling in order to avoid being passed through in band afterwards use after electric currentThe displacement that material is produced, often mechanically band is fixed, and generally fastens these using the method for epoxy resin dippingHigh-temperature superconductor band.The local dilation of meeting during epoxy resin is changed into solid from liquid, now band should by delaminationPower either shear stress, if superconducting layer bears incessantly such power, can be torn, although such tear on microcosmicIt can not distinguish on naked eyes, but be enough to influence the critical current properties of superconducting tape.Band can be passed through very big in actual applicationsElectric current, form larger magnetic field.And this magnetic field can produce very big stress to superconducting tape in turn, especially in superconductionBand because electric current is too big quench become non-superconducting state when, the stress that band is subject to is very huge.If band can not be throughLose performance by such power, or due to being stressed, thus cause it is chain quench propagation, this is for superconducting apparatusFor its consequence be inconceivable.Therefore except the critical current properties of superconducting tape, we can also be to superconducting tape in itselfMechanical property very pay close attention to.The changing value of its its critical current properties in the case where being stressed would generally be tested, withJudge processing mode and the application scenario of band.
The mechanics characterization index of usual high-temperature superconductor band has three：Respectively radius of turn, axial stress and delamination shouldPower.
What radius of turn was characterized is the flexible degree of band, because high temperature superconducting materia is a kind of ceramic oxide, superconductionLayer only has micron level, if band bent, and irreversible damage will occur for superconducting layer.The flexible degree of superconducting tape canTo be quantified with the value of min. turning radius.Radius of turn then refers to bend to superconducting tape after circle, and the half of this circleFootpath size.In the case that min. turning radius then refers to that the electric property of band is less than 5% decay, its radius of turn minimumCritical value.The meaning that this value is represented is the how small coil of such band energy coiling.
What axial stress was characterized is the power that can bear of band in the axial direction.Superconducting tape is past during useToward by horizontal electromagnetic force, such as the parallel current-carrying band in two positions can be mutually exclusive or attracted.Now band is in axial directionOn can bear larger stress, if band bears not living, its performance will appear from losing.Critical axial tensile stress refers to bandIn the case that electric property is less than 5% decay, maximum axial tensile stress.The meaning that this value is represented is that such band existsThe maximum axial tensile stress that can be born in the case that performance is unattenuated.
What delamination stress was characterized is the power that can bear of band in the horizontal.Process of the superconducting tape in coilingIn, generally carry out impregnation process with epoxy resin.During the epoxy resin being embedded in tape layer is changed into solid from liquidCan shrink, above and below such band two surfaces will under tension, if power is excessive, band will be torn, generally weThis power is called the delamination stress that band is born.Critical delamination stress refers to the situation of decay of the electric property less than 5% of bandUnder, maximum delamination stress.The maximum delamination that the meaning band that this value is represented can be born in the case where performance is unattenuated shouldPower.
It is most important for the application of superconducting tape for high-temperature superconductor band mechanical property, therefore it is super to design a set of high temperatureThe electricity and Mechanics Performance Testing device of conduction band material are very important.
The content of the invention
The present invention is for there is provided a kind of Mechanics Performance Testing of high-temperature superconductor band the need for band mechanics properties testingDevice.
The present invention is achieved by the following technical solutions：
A kind of device for high-temperature superconductor band Mechanics Performance Testing, it includes four lead control devices (1), band and facedBoundary's testing current frame (2), band radius of turn testing jig (3), web tension stress test frame (4), the four leads control are surveyedRequirement of experiment (quantitative pulling force, quantitative electric current) and number that test system (1) is used for needed for the offer in whole measurement processAccording to processing.The band critical current testing jig (2) is used for the critical current for measuring various length band；The band is turned partlyFootpath testing jig (3), which is used to measure, does not influence the maximum radius of turn of band in the case of band performance；The web tension stressTesting jig (4) is used to measure the axial stress of band and the delamination stress of band.
The four leads control device includes heavy DC current source (102) and nanovoltmeter (103), and the band is criticalTesting current frame (2) includes：Current loading lead (201) and voltage tester lead (203)；The band radius of turn testing jig(3) current loading copper busbar (308) and voltage measurement copper busbar (309) are included；The web tension stress test frame (4)Including binding post (408), described current loading lead (201) one end is connected with heavy DC current source (102)；VoltageTest lead (203) one end is connected with nanovoltmeter (103)；The current loading lead (201) and current loading copper busbar(308) electrically connect, the voltage tester lead (203) electrically connects with voltage measurement copper busbar (309), the binding post(408) it is connected with current loading lead 201.
Preferably, the four leads control device (1) also includes display (101), tensile testing machine observing and controlling systemSystem (104), data processor (105)；The display (101), heavy DC current source (102), nanovoltmeter (103), drawingForce tester TT＆C system (104) is connected with data processor (105) respectively.
Preferably, the band critical current testing jig (2) also includes：Current loading lead (201), conductive purpleCopper sheet (202), voltage tester lead (203), critical current test board (205), critical current test bucket (207), the conductionCopper sheet (202) is wrapped in the two ends of critical current test board (205).
Preferably, the band radius of turn testing jig (3) also includes：Radius testing wheel (301), graduated scale(302), voltage measurement tagblock (303), current loading tagblock (304), radius wheel hanging plate (305), radius test liquid nitrogen bucket(306), radius test bottom plate (310), radius test bracket (311), the radius test liquid nitrogen bucket (306) are fixed on radius surveyTry on support (311) bottom plate, the radius wheel hanging plate (305) is fixed on below the platform of radius test bracket (311).Described halfFootpath test liquid nitrogen bucket (306) is fixed on radius test bracket (311) bottom plate, and radius wheel hanging plate (305) is fixed on radius testBelow the platform of support (311)；Neck is set to place radius test bottom plate above the radius test bracket (311)(310)；Radius wheel hanging plate (305) front has highlight bar to deposit radius 10-50mm radius testing wheel (301)；InstituteTwo current loading tagblocks (304) are stated installed in the nethermost two long straight trough front of radius test bottom plate (310), Ke YiIn groove slidably, and by bolt it is connected with the current loading copper busbar (308) that radius tests bottom plate (310) rear；Described two voltage measurement tagblocks (303) are arranged on the two long straight trough front that radius is tested above bottom plate (310), Ke YiIn groove slidably, and by bolt it is connected with the voltage measurement copper busbar (309) that radius tests bottom plate (310) rear；The positive center of radius test bottom plate (310) can assemble 10-50mm radius testing wheel (301)；The graduated scale (302) is solidAbove voltage measurement tagblock (309).
Preferably, the web tension stress test frame (4) also includes：Puller system lifting controller (401), liquidNitrogen bucket lifting controller (402), stretching device (403), force snesor (404), sample clamp (405), tensile test liquid nitrogen bucket(406), liquid nitrogen bucket hoistable platform (407), delamination stress test superconduction carry sample (410), strip surface contiguous block (411), folderHas support (412), the puller system lifting controller (401) and liquid nitrogen bucket lifting controller (402) are fixed on web tension shouldThe front of power testing jig (4)；The binding post (408) is installed on sample clamp (405).The puller system lifting controller(401) and liquid nitrogen bucket lifting controller (402) be fixed on web tension stress test frame (4) front；The stretching device (403)Installed in the internal top of web tension stress test frame (4), tensile testing machine TT＆C system (104) and puller system can be passed throughLifting controller (401) regulation lifting；The force snesor (404) is connected with stretching device (403)；The liquid nitrogen bucket liftingPlatform (407) is arranged on the bottom of web tension stress test frame (4), can be adjusted by liquid nitrogen bucket lifting controller (402)Lifting；The tensile test liquid nitrogen bucket (406) is fixed on liquid nitrogen bucket hoistable platform (407)；The sample clamp (405) is respectivelyIt is fixed in fixture mount (412) and force snesor (404) lower section.
A kind of method for detecting high-temperature superconductor band mechanical property, it includes：
The detection of the maximum radius of turn of the detection of the critical current of band, band；The axial stress and band of bandDelamination stress detection.
Preferably, to include critical current test of the length less than one meter super for the detection of the critical current of the bandThe detection of critical current test superconduction belt length sample (206) of the detection and length of the short sample of conduction band (204) more than one meter, itsIn：
The detection of critical current test superconductive tape short sample (204) of the length less than one meter comprises the following steps：
Critical current is tested into the conduction purple that the short sample of superconductive tape (204) is soldered to critical current test board (205) two endsCopper sheet (202) front；
Two leads of current loading lead (201) are soldered to conductive copper sheet (202) back side at two ends respectively；
Two leads of voltage tester lead (203) are soldered on the critical current test short sample of superconductive tape (204), welderingPoint will be apart from conductive copper sheet (202) at least 20mm；
By conductive copper sheet (202), the critical current test short sample of superconductive tape (204), critical current test board (205) leachingEnter in liquid nitrogen, treat its temperature stabilization；
Exported, received while reading by the electric current of data processor (105) constantly regulate heavy DC current source (102)Lie prostrate the voltage value on table (103)；
The critical electric current value that critical current tests the short sample of superconductive tape (204) is made by data processor (105).
The detection of critical current test superconduction belt length sample (206) of the length higher than one meter comprises the following steps
By critical current test superconduction belt length sample (206) spiral wrap on the outside of critical current test bucket (207)；
Two leads of current loading lead (201) are soldered to critical current test superconduction belt length sample (206) respectivelyTwo ends；
Two leads of voltage tester lead (203) are soldered on the critical current test short sample of superconductive tape (204), welderingPoint will apart from current loading lead (201) solder joint at least 20mm；
By in critical current test superconduction belt length sample (206), critical current test bucket (207) immersion liquid nitrogen, its temperature is treatedDegree is stable；
Exported, received while reading by the electric current of data processor (105) constantly regulate heavy DC current source (102)Lie prostrate the voltage value on table (103)；
Show that critical current tests the critical electric current value of superconduction belt length sample (206).
Preferably, the detection of the minimum radius of turn of the band comprises the following steps：
It is 50mm radiuses testing wheel (301) to choose radius from radius wheel hanging plate (305), and bottom plate is tested installed in radius(310) center；
Radius test superconduction carry sample (307) is bypassed into radius testing wheel (301), regulation voltage measurement tagblock (303)And current loading tagblock (304) tests the underface of superconduction carry sample (307) sagging wire to radius, and ensure graduated scale(302) scale shown on is consistent with radius testing wheel (301) radius；
Voltage measurement tagblock (303) and electric current are sequentially fixed at after tensioning radius test superconduction carry sample (307)Load wiring block (304) surface；
With current loading lead (201) connection current loading copper busbar (308)；
With voltage test lead (203) connection voltage measurement copper busbar (309)；
Radius test underframe (310) is put into radius test liquid nitrogen bucket, its temperature stabilization is treated；
Exported, received while reading by the electric current of data processor (105) constantly regulate heavy DC current source (102)Lie prostrate the voltage value on table (103)；
Show that radius tests critical electric current value of the superconduction carry sample (307) under this bending radius；
Tested with the radius testing wheel that above method successively actionradius is 50mm, 40mm, 30mm, 20mm, 10mm；
Show that radius tests critical current of the superconduction carry sample (307) in the case of different radii.
Preferably, the detection of the axial stress of the band comprises the following steps：
Two sample clamp (405) regulations are arrived by correct position by puller system lifting controller (401), axial drawing is clampedThe two ends of power test superconduction carry sample (409)；
Binding post (408) is attached on sample clamp (405), it is ensured that binding post (408) one side and axial tensionIt is close on test superconduction carry sample (409) surface；
Binding post is connected with current loading lead (201)；
Voltage measurement lead (203) is soldered to axial tension test superconduction carry sample (409) two ends, solder joint is apart from sampleFixture (405) at least 20mm；
Using liquid nitrogen bucket lifting controller (402) by the rise of liquid nitrogen bucket until liquid nitrogen liquid level exceeds the sample clamp of top(405)；
Stretching device (403) pulling force is set to by 5N by data processor (105)；
Exported, received while reading by the electric current of data processor (105) constantly regulate heavy DC current source (102)Lie prostrate the voltage value on table (103)；
Show that axial tension tests the critical electric current value under this pulling force of superconduction carry sample (409)；
Pulling force is stepped up 5N and repeated the above steps again, until strip breakage, obtains axial tension test data, passes throughCalculate the critical tensile stress value that test data obtains band.
Preferably, the detection of the delamination stress of the band comprises the following steps：
Above the sample clamp (405) that critical current test board (205) is fixed on to lower section；
Delamination stress test superconduction carry sample (410) is soldered to the conductive red copper at critical current test board (205) two endsThe front of piece 202；
Two leads of current loading lead (201) are soldered to conductive copper sheet (202) back side at two ends respectively；
Two leads of voltage tester lead (203) are soldered on the critical current test short sample of superconductive tape (204), welderingPoint will be apart from conductive copper sheet (202) at least 20mm；
By tin above and below two pieces of strip surface contiguous blocks (411) and delamination stress test superconduction carry sample (410) centerSolid welding is determined；
Strip surface contiguous block (411) is fixedly clamped with sample clamp (405)；
Using liquid nitrogen bucket lifting controller (402) by the rise of liquid nitrogen bucket until liquid nitrogen liquid level exceeds the sample clamp of top(405)；
Stretching device (403) pulling force is set to by 5N by data processor (105)；
Exported, received while reading by the electric current of data processor (105) constantly regulate heavy DC current source (102)Lie prostrate the voltage value on table (103)；
Draw the critical electric current value under this pulling force of delamination stress test superconduction carry sample (410)；
Data processor (105) adjustment pulling force is stepped up 5N and repeated the above steps again, until band is pulled layer, obtainsTo delamination stress test data, the critical delamination stress value of band is obtained by calculating test data.
Compared with prior art, the present invention has following beneficial effect：
1st, accurately measuring for the almost all of electricity of the short sample of band and mechanical property can be completed by apparatus of the present invention, wrappedRadius of turn, tensile stress, delamination stress etc. are included, it is multiple functional, it is easy to use；
2nd, equipment design is complete, and practical more hommization, people can be sitting on table top and be welded, and the process such as test is wholeIndividual process is more light；
3rd, desktop can with square hole plate can store various test sample framves, screw, instrument etc. is convenient and practical；
4th, test sample frame all rationally can effectively support the measurement of sample.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature of the invention,Objects and advantages will become more apparent upon：
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is that four leads control test system component figure；
Fig. 3 is critical current test plate structure schematic diagram；
Fig. 4 is that critical current tests barrel structure schematic diagram；
Fig. 5 is band radius of turn testing jig schematic diagram；
Fig. 6 is band radius of turn testing jig test process schematic diagram；
Fig. 7 is web tension stress test frame schematic diagram；
Fig. 8 is axial tension test schematic diagram；
Fig. 9 is delamination stress test schematic diagram；
In figure：1st, four leads control test device；101st, display；102nd, heavy DC current source；103rd, nanovoltmeter；104th, tensile testing machine TT＆C system；105th, data processor；2nd, band critical current testing jig；201st, current loading lead；202nd, conductive copper sheet；203rd, voltage measurement lead；204th, the critical current test short sample of superconductive tape；205th, critical current is testedPlate；206th, critical current test superconduction belt length sample；207th, critical current test bucket；3 band radius of turn testing jigs；301st, halfFootpath testing wheel；302nd, graduated scale；303rd, voltage measurement tagblock；304th, current loading tagblock；305th, radius wheel hanging plate；306、Radius test liquid nitrogen bucket；307th, radius test superconduction carry sample；308th, current loading copper busbar；309th, voltage measurement wiring copperRow；310th, radius test bottom plate；311st, radius test bracket；4th, web tension stress test frame；401st, puller system elevating controlDevice；402nd, liquid nitrogen bucket lifting controller；403rd, stretching device；404th, force snesor；405th, sample clamp；
406th, tensile test liquid nitrogen bucket；407th, liquid nitrogen bucket hoistable platform；408th, binding post；409th, axial tension test is superConduction band sample；410th, delamination stress test superconduction carry sample；411st, strip surface contiguous block；412nd, fixture mount.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this areaPersonnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this areaFor personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present inventionProtection domain.
A kind of structure for device for high-temperature superconductor band Mechanics Performance Testing that the present invention is provided is as shown in figure 1, bagInclude four lead control devices 1, band critical current testing jig 2, band radius of turn testing jig 3, web tension stress test frame4, the requirement of experiment that the four leads control test system 1 is used for needed for the offer in whole measurement process (determine by quantitative pulling forceThe electric current of amount) and data processing.The band critical current testing jig 2 is used for the critical current for measuring various length band；The band radius of turn testing jig 3, which is used to measure, does not influence the maximum radius of turn of band in the case of band performance；It is describedWeb tension stress test frame 4 is used to measure the axial stress of band and the delamination stress of band.
The four leads control device includes heavy DC current source 102 and nanovoltmeter 103, the test of band critical currentFrame 2 includes：Current loading lead 201 and voltage tester lead 203；The band radius of turn testing jig 3 includes current loadingCopper busbar 308 and voltage measurement copper busbar 309；The web tension stress test frame 4 includes binding post 408, describedThe one end of current loading lead 201 is connected with heavy DC current source 102；The one end of voltage tester lead 203 and nanovoltmeter 103It is connected；The current loading lead 201 is electrically connected with current loading copper busbar 308, the voltage tester lead 203 and electricityPressure measurement copper busbar 309 is electrically connected, and the binding post 408 is connected with current loading lead 201.
The four leads control device 1 also includes display 101, tensile testing machine TT＆C system 104, data processor105；The display 101, heavy DC current source 102, nanovoltmeter 103, tensile testing machine TT＆C system 104 respectively with numberIt is connected according to processor 105.
The band critical current testing jig 2 also includes：Current loading lead 201, conductive copper sheet 202, voltage testerLead 203, critical current test board 205, critical current test bucket 207, the conductive copper sheet 202 are wrapped in critical current surveyThe two ends of test plate (panel) 205.
The band radius of turn testing jig 3 also includes：Radius testing wheel 301, graduated scale 302, voltage measurement tagblock303rd, current loading tagblock 304, radius wheel hanging plate 305, radius test liquid nitrogen bucket 306, radius test bottom plate 310, radius are surveyedSupport 311 is tried, the radius test liquid nitrogen bucket 306 is fixed on the bottom plate of radius test bracket 311, the radius wheel hanging plate 305Below the platform for being fixed on radius test bracket 311.
The web tension stress test frame 4 also includes：Puller system lifting controller 401, liquid nitrogen bucket lifting controller402nd, stretching device 403, force snesor 404, sample clamp 405, tensile test liquid nitrogen bucket 406, liquid nitrogen bucket hoistable platform 407,Delamination stress test superconduction carry sample 410, strip surface contiguous block 411, fixture mount 412, the puller system lifting controller401 and liquid nitrogen bucket lifting controller 402 be fixed on the front of web tension stress test frame 4；The binding post 408 is installed inOn sample clamp 405.
A kind of method for detecting high-temperature superconductor band mechanical property, it includes：
The detection of the maximum radius of turn of the detection of the critical current of band, band；The axial stress and band of bandDelamination stress detection.
Critical current including length less than one meter tests detection and length the facing more than one meter of the short sample 204 of superconductive tapeThe detection of boundary's testing current superconduction belt length sample 206, wherein：
The detection of critical current test superconductive tape short sample 204 of the length less than one meter comprises the following steps：
Critical current is tested into the conductive copper sheet that the short sample 204 of superconductive tape is soldered to the two ends of critical current test board 205202 fronts；
Two leads of current loading lead 201 are soldered to the back side of conductive copper sheet 202 at two ends respectively；
Two leads of voltage tester lead 203 are soldered on the critical current test short sample 204 of superconductive tape, solder joint willThe conductive copper sheet 202 of distance at least 20mm；
Conductive copper sheet 202, the short sample 204 of critical current test superconductive tape, critical current test board 205 are immersed into liquid nitrogenIn, treat its temperature stabilization；
Exported by the electric current of the constantly regulate heavy DC current source 102 of data processor 105, while reading nanovoltmeterVoltage value on 103；
The critical electric current value that critical current tests the short sample 204 of superconductive tape is made by data processor 105.
The detection of critical current test superconduction belt length sample 206 of the length higher than one meter comprises the following steps
By the spiral wrap of critical current test superconduction belt length sample 206 in the outside of critical current test bucket 207；
Two leads of current loading lead 201 are soldered to the two ends of critical current test superconduction belt length sample 206 respectively；
Two leads of voltage tester lead 203 are soldered on the critical current test short sample 204 of superconductive tape, solder joint willApart from the solder joint at least 20mm of current loading lead 201；
Critical current test superconduction belt length sample 206, critical current test bucket 207 are immersed in liquid nitrogen, treat that its temperature is steadyIt is fixed；
Exported by the electric current of the constantly regulate heavy DC current source 102 of data processor 105, while reading nanovoltmeterVoltage value on 103；
Draw the critical electric current value of critical current test superconduction belt length sample 206.
The detection of the minimum radius of turn of the band comprises the following steps：
It is 50mm radiuses testing wheel 301 to choose radius from radius wheel hanging plate 305, installed in radius test bottom plate 310 center；
Radius test superconduction carry sample 307 is bypassed into radius testing wheel 301, regulation voltage measurement tagblock 303 and electric currentLoad wiring block 304 tests the underface of the sagging wire of superconduction carry sample 307 to radius, and ensures to carve shown on graduated scale 302Degree is consistent with the radius of radius testing wheel 301；
Voltage measurement tagblock 303 and current loading are sequentially fixed at after tensioning radius test superconduction carry sample 307The surface of tagblock 304；
With the connection current loading of current loading lead 201 copper busbar 308；
With the connection voltage measurement of voltage test lead 203 copper busbar 309；
Radius test underframe 310 is put into radius test liquid nitrogen bucket, its temperature stabilization is treated；
Exported by the electric current of the constantly regulate heavy DC current source 102 of data processor 105, while reading nanovoltmeterVoltage value on 103；
Show that radius tests superconduction 307 critical electric current value under this bending radius of carry sample；
Tested with the radius testing wheel that above method successively actionradius is 50mm, 40mm, 30mm, 20mm, 10mm；
Draw critical current of the radius test superconduction carry sample 307 in the case of different radii.
The detection of the axial stress of the band comprises the following steps：
Two sample clamps 405 are adjusted by correct position by puller system lifting controller 401, axial tension survey is clampedTry the two ends of superconduction carry sample 409；
Binding post 408 is attached on sample clamp 405, it is ensured that the one side of binding post 408 and axial tension test are superIt is close on the surface of conduction band sample 409；
Binding post is connected with current loading lead 201；
Voltage measurement lead 203 is soldered to the two ends of axial tension test superconduction carry sample 409, solder joint is apart from sample clamp405 at least 20mm；
Using liquid nitrogen bucket lifting controller 402 by the rise of liquid nitrogen bucket until liquid nitrogen liquid level exceeds the sample clamp 405 of top；
The pulling force of stretching device 403 is set to by 5N by data processor 105；
Exported by the electric current of the constantly regulate heavy DC current source 102 of data processor 105, while reading nanovoltmeterVoltage value on 103；
Draw the critical electric current value under this pulling force of axial tension test superconduction carry sample 409；
Pulling force is stepped up 5N and repeated the above steps again, until strip breakage, obtains axial tension test data, passes throughCalculate the critical tensile stress value that test data obtains band.
The detection of the delamination stress of the band comprises the following steps：
Critical current test board 205 is fixed on to the top of sample clamp 405 of lower section；
Delamination stress test superconduction carry sample 410 is soldered to the conductive copper sheet 202 at the two ends of critical current test board 205Front；
Two leads of current loading lead 201 are soldered to the back side of conductive copper sheet 202 at two ends respectively；
Two leads of voltage tester lead 203 are soldered on the critical current test short sample 204 of superconductive tape, solder joint willThe conductive copper sheet 202 of distance at least 20mm；
Two pieces of strip surface contiguous blocks 411 are consolidated with soldering above and below the center of delamination stress test superconduction carry sample 410It is fixed；
Strip surface contiguous block 411 is fixedly clamped with sample clamp 405；
Using liquid nitrogen bucket lifting controller 402 by the rise of liquid nitrogen bucket until liquid nitrogen liquid level exceeds the sample clamp 405 of top；
The pulling force of stretching device 403 is set to by 5N by data processor 105；
Exported by the electric current of the constantly regulate heavy DC current source 102 of data processor 105, while reading nanovoltmeterVoltage value on 103；
Draw the critical electric current value under this pulling force of delamination stress test superconduction carry sample 410；
The adjustment pulling force of data processor 105 is stepped up 5N and repeated the above steps again, until band is pulled layer, obtainsDelamination stress test data, the critical delamination stress value of band is obtained by calculating test data.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentionedParticular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadowRing the substantive content of the present invention.