CN110261303A - A kind of superconducting tape transverse direction peel strength testing device and test method - Google Patents
A kind of superconducting tape transverse direction peel strength testing device and test method Download PDFInfo
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- CN110261303A CN110261303A CN201910682068.5A CN201910682068A CN110261303A CN 110261303 A CN110261303 A CN 110261303A CN 201910682068 A CN201910682068 A CN 201910682068A CN 110261303 A CN110261303 A CN 110261303A
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- anvil head
- anvil
- welding
- peel test
- band
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000010998 test method Methods 0.000 title claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 23
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 claims abstract description 18
- 239000002887 superconductor Substances 0.000 claims abstract description 15
- BTGZYWWSOPEHMM-UHFFFAOYSA-N [O].[Cu].[Y].[Ba] Chemical compound [O].[Cu].[Y].[Ba] BTGZYWWSOPEHMM-UHFFFAOYSA-N 0.000 claims abstract description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 6
- 235000009161 Espostoa lanata Nutrition 0.000 claims description 3
- 240000001624 Espostoa lanata Species 0.000 claims description 3
- 244000137852 Petrea volubilis Species 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000007719 peel strength test Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of yttrium barium copper oxide high-temperature superconductor band anvil peel test device and test methods, including upper anvil head, lower anvil head, lower anvil head fixed station, load lower disc, screw rod, pull rod, upper anvil head, lower anvil head are by being welded to connect the upper and lower surface in band, lower anvil head is mounted in the card slot of lower anvil head fixed station, and lower anvil head fixed station is fixedly connected with load lower disc；Upper anvil head is connected by screw rod with pull rod.The present invention realizes upper anvil head vertical welding during YBCO high-temperature superconductor band peel strength test.Clamping fixture makes to realize vertical welding between anvil head and band, efficiently avoids the influence due to welding process collet skew to peel test results.
Description
Technical field
The invention belongs to superconducting tape technical field, in particular to a kind of yttrium barium copper oxide high-temperature superconductor band anvil peel test
Device, test method and a kind of welding fixture of anvil peel test.
Background technique
High-temperature superconductor band has special laminate structures, in application process, epoxy resin and high-temperature superconductor band it
Between thermal mismatching and electromagnetic force can cause horizontal tensile stress, lead to layering behavior, to generate security risk, therefore high temperature is super
The test of conduction band material interlaminar strength is particularly important.The test method of YBCO superconducting tape transverse strength mainly has lateral anvil at present
Peel test, needle draw the test methods such as peel test, edge peeling test, side splitting test and lateral shear test.
Summary of the invention
For YBCO superconducting tape transverse direction peel strength, the present invention designs a set of anvil and removes special instrument, and proposes corresponding
Test method.
The purpose of the present invention is what is be implemented with the following technical solutions, a kind of yttrium barium copper oxide high-temperature superconductor band anvil removing survey
Trial assembly is set, including upper anvil head, lower anvil head, lower anvil head fixed station, load lower disc, screw rod, pull rod, and upper anvil head, lower anvil head pass through
It is welded to connect the upper and lower surface in band, lower anvil head is mounted in the card slot of lower anvil head fixed station, lower anvil head fixed station and load
Lower disc is fixedly connected；Upper anvil head is connected by screw rod with pull rod；Keep pull rod motionless, load lower disc drives lower anvil head to fix
Platform and first of lower anvil move down, and band bears the effect of horizontal tensile stress, realize anvil peel test.
Preferably, lower anvil head fixed station is connected by screw with load lower disc.
Preferably, the lower anvil head is up-thin-low-thick step-like, and the lower anvil head fixed station top is correspondingly provided with card slot.
Preferably, the upper anvil head and pull rod lower part is corresponding is respectively equipped with horizontal threaded bore, matches with horizontal threaded bore
Equipped with screw rod.
A kind of test method of yttrium barium copper oxide high-temperature superconductor band anvil peel test device, anvil peel test process are divided into weldering
Termination process, two parts of installation test；
It is 140 DEG C of Pb-free solder that melting temperature is selected when welding, is fixedly connected with test sample and upper and lower anvil head；
It is mounted in peel-off device after taking-up welding body and carries out peel test.
Preferably, the welding process the following steps are included:
Firstly, removing oxide layer is removed, to ensure weld strength using sand paper polishing YBCO CC and upper and lower anvil head；Then, clearly
Sample and jaw face are washed, is uniformly applied in upper and lower anvil head surface spread soldering paste later, is being heated after being mounted in welder
Heating welding is carried out on platform, carefully disposes the extra weldering in upper and lower collet edge using cotton balls while scolding tin sufficiently melts
Solution of tin, in this way can be to avoid the test error as caused by extra scolding tin；Then, stop heating, be placed in air and be cooled to
Room temperature；Finally, removing fixed device, welding body is taken out.
A kind of welding fixture of anvil peel test, including upper positioning plate, bottom panel, mandril, upper positioning plate and bottom surface
It is strictly positioned between plate by vernier caliper, it is ensured that upper positioning plate is kept and bottom panel parallel, also ensures that positioning plate
Casing axial direction be exactly perpendicularly to positioning plate and bottom panel；The hole-opening on the casing of upper positioning plate is opened on mandril perpendicular
Slot, screw is in vertical slot, limitation fixture horizontal direction rotation, so that the mandril in casing only has the freedom degree of vertical direction；Top
Bar is fixed by screws in together with upper anvil head, thus upper anvil head only keeps vertical direction freedom degree.By the present invention in that with
Test method is stated, the peel strength test of YBCO high-temperature superconductor band power-thermo-electrically-magnetic multi- scenarios method is realized.
The present invention realizes upper anvil head vertical welding during YBCO high-temperature superconductor band peel strength test.Clamping fixture
Make to realize vertical welding between anvil head and band, efficiently avoid since welding process collet skew is to peel test results
Influence.
Detailed description of the invention
It further illustrates with reference to the accompanying drawings and detailed description:
Fig. 1 is the structural schematic diagram of anvil peel-off device.
Fig. 2 is the side view of anvil peel-off device.
Fig. 3 is the front view of anvil peel-off device.
Fig. 4 is the perspective view of anvil peel-off device.
Fig. 5 is power-thermo-electrically-magnetic multi- scenarios method material mechanical performance test equipment test equipment schematic diagram.
Fig. 6 is the front view of the welding fixture of anvil peel test.
Fig. 7 is the bottom view of the welding fixture of anvil peel test.
Fig. 8 is the perspective view of the welding fixture of anvil peel test.
Specific embodiment
Anvil peel-off device: as shown in Figs 1-4, anvil head c passes through the upper and lower surface being welded to connect in band b under upper anvil head a, under
Anvil head c may be mounted in the card slot of lower anvil head fixed station e, and lower anvil head fixed station e is connected by screw with load lower disc f.
Upper anvil head a is connected by screw rod g with pull rod d.Keep pull rod d motionless, load lower disc f drives lower anvil head fixed platform e under
Anvil head c is moved downwardly together, and band bears the effect of horizontal tensile stress, realizes anvil peel test.
Peel test device is matched with power-thermo-electrically-magnetic multi- scenarios method material mechanical performance test equipment test equipment such as Fig. 5
It closes and uses, experimental test can be carried out in room temperature and liquid nitrogen different temperatures environment, electric power can realize maximum 600A load, mainly
Performance indicator is shown in Table (1).
Table (1)
Power-thermo-electrically-magnetic multi- scenarios method material mechanical performance test equipment test equipment applicant separately applies for a patent, Shen
It asks someone to be not described extensively here.
Anvil peel test process is divided into welding process, two parts of installation test.It is 140 DEG C that melting temperature is selected when welding
Pb-free solder, be fixedly connected with test sample and upper and lower anvil head.Firstly, being gone using sand paper polishing YBCO CC and upper and lower anvil head
Removing oxide layer, to ensure weld strength.Then, cleaning sample and jaw face uniformly apply in upper and lower anvil head surface spread later
Soldering paste carries out heating welding after being mounted in welder on warm table, and cotton balls is used while scolding tin sufficiently melts
The extra scolding tin solution in upper and lower collet edge is carefully disposed, can be missed in this way to avoid being tested as caused by extra scolding tin
Difference.Then, stop heating, be placed in air and be cooled to room temperature.Finally, removing fixed device, welding body is taken out.Take out welding body
It installs later and carries out peel test in peel-off device shown in Fig. 1.
Skew often occurs for the welding process anvil head of anvil peel test, leads to the test process high temperature superconduction in removing
Band is caused side to be shelled, anvil head falls off in advance, and test result is less than normal by the moment of flexure even effect of shearing force.Collet skew is to stripping
Influence from test is never well solved, and welding clamping fixture solves between anvil head test anvil head and band
Non-perpendicular Welding Problems.
Removing welder: it needs to be fixedly connected with test sample and upper and lower anvil head using scolding tin when anvil peel test.It is real
It tests sample and upper and lower collet heats in welding process on warm table, clamping welding is carried out by fixture as shown in figs 6-8, with reality
Vertical welding between existing collet and band.The welding fixture efficiently avoids surveying removing due to welding process collet skew
The influence of examination.Peel test is carried out using power-thermo-electrically-magnetic multi- scenarios method peel strength testing device after the completion of welding.
Influence of the collet skew to peel test is never well solved, and welding clamping fixture solves anvil head
Test the non-perpendicular Welding Problems between anvil head and band.As shown in figs 6-8, which is broadly divided into positioning plate to welding fixture
A, go to the bottom panel C, tri- parts mandril B.It is strictly positioned between upper positioning plate A and bottom panel C by vernier caliper, it is ensured that on
Positioning plate A keeps parallel with bottom panel C, also ensures that the axial direction of the casing of positioning plate A is exactly perpendicularly to positioning plate A
Vertical slot is opened on mandril B in addition, the hole-opening on the casing of upper positioning plate A with bottom panel C, and screw is in vertical slot, limitation folder
Has horizontal direction rotation, so that the mandril B in casing only has the freedom degree of vertical direction.Mandril B and upper anvil head are solid by screw
It is scheduled on together, thus upper anvil head only keeps vertical direction freedom degree.Finally apply pressure in the upper end mandril B, avoids welding
Cheng Zhong, due to scolding tin fusing and make to loosen between band and anvil head.Welding fixture makes the anvil head and sample finally welded
Product keep vertical, and band uniform force in stripping process, test result is stablized.
Removing welding clamping fixture, anvil head is vertical with sample holding, and band uniform force in stripping process is avoided due to anvil
Head skew influences peel test results.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of yttrium barium copper oxide high-temperature superconductor band anvil peel test device, which is characterized in that including upper anvil head (a), lower anvil head
(c), lower anvil head fixed station (e), load lower disc (f), screw rod (g), pull rod (d), upper anvil head (a), lower anvil head (c) pass through welding
It is connected to the upper and lower surface of band (b), lower anvil head (c) is mounted in the card slot of lower anvil head fixed station (e), lower anvil head fixed station
(e) it is fixedly connected with load lower disc (f)；Upper anvil head (a) is connected by screw rod with pull rod (d)；It keeps pull rod (d) motionless, adds
Carrying lower disc (f) drives lower anvil head fixed platform (e) and lower anvil head (c) to move downwardly together, and band bears horizontal tensile stress
Anvil peel test is realized in effect.
2. yttrium barium copper oxide high-temperature superconductor band anvil peel test method according to claim 1, which is characterized in that lower anvil head
Fixed station (e) is connected by screw with load lower disc (f).
3. yttrium barium copper oxide high-temperature superconductor band anvil peel test device according to claim 1, which is characterized in that under described
Anvil head (c) be it is up-thin-low-thick step-like, lower anvil head fixed station (e) top is correspondingly provided with card slot.
4. yttrium barium copper oxide high-temperature superconductor band anvil peel test device according to claim 1, which is characterized in that on described
Anvil head (a) is corresponding with pull rod (d) lower part to be respectively equipped with horizontal threaded bore, is mutually equipped with screw rod (g) with horizontal threaded bore.
5. the test method of yttrium barium copper oxide high-temperature superconductor band anvil peel test device, feature described in a kind of claim 1-4
It is, anvil peel test process is divided into welding process, two parts of installation test；
It is 140 DEG C of Pb-free solder that melting temperature is selected when welding, is fixedly connected with test sample and upper and lower anvil head；
It is mounted in peel-off device after taking-up welding body and carries out peel test.
6. yttrium barium copper oxide high-temperature superconductor band anvil peel test method described in a kind of claim 5, which is characterized in that the welding
Process the following steps are included:
Firstly, removing oxide layer is removed, to ensure weld strength using sand paper polishing YBCO CC and upper and lower anvil head；Then, sample is cleaned
Product and jaw face uniformly apply in upper and lower anvil head surface spread soldering paste later, after being mounted in welder on warm table
Heating welding is carried out, it is molten that the extra scolding tin in upper and lower collet edge is carefully disposed using cotton balls while scolding tin sufficiently melts
Liquid, in this way can be to avoid the test error as caused by extra scolding tin；Then, stop heating, be placed in air and be cooled to room temperature；
Finally, removing fixed device, welding body is taken out.
7. a kind of welding fixture of anvil peel test, which is characterized in that including upper positioning plate (A), bottom panel (C), mandril
(B), it is strictly positioned between upper positioning plate (A) and bottom panel (C) by vernier caliper, it is ensured that upper positioning plate (A) is kept under
Bottom panel (C) in parallel, also ensures that the axial direction of the casing of positioning plate (A) is exactly perpendicularly to positioning plate (A) and bottom surface
Plate (C)；The hole-opening on the casing of upper positioning plate (A) opens vertical slot on mandril (B), and screw limits fixture level side in vertical slot
To rotation, so that the mandril (B) in casing only has the freedom degree of vertical direction；Mandril (B) is fixed by screws in upper anvil head
Together, thus upper anvil head only keeps vertical direction freedom degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682068.5A CN110261303A (en) | 2019-07-26 | 2019-07-26 | A kind of superconducting tape transverse direction peel strength testing device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682068.5A CN110261303A (en) | 2019-07-26 | 2019-07-26 | A kind of superconducting tape transverse direction peel strength testing device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110261303A true CN110261303A (en) | 2019-09-20 |
Family
ID=67911918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910682068.5A Pending CN110261303A (en) | 2019-07-26 | 2019-07-26 | A kind of superconducting tape transverse direction peel strength testing device and test method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295551A (en) * | 2021-04-01 | 2021-08-24 | 张家港市海宇金属材料测试有限公司 | Shear load testing method for pipe plate welding structure |
| CN114593989A (en) * | 2022-05-10 | 2022-06-07 | 西南交通大学 | Ballastless track cohesion parameter assembly type measuring device and measuring method thereof |
| WO2022116025A1 (en) * | 2020-12-02 | 2022-06-09 | 兰州大学 | Method for measuring transverse delamination strength of second-generation high-temperature superconducting tape, measurement data statistical analysis method, and device for testing delamination strength of two-generation high-temperature superconducting tape and welding fixture thereof |
| CN115406751A (en) * | 2022-10-31 | 2022-11-29 | 核工业西南物理研究院 | Welding type conduction experiment clamp for high-temperature superconducting cable and method thereof |
| RU2821707C1 (en) * | 2020-12-02 | 2024-06-26 | Университет Ланьчжоу | Method of measuring peel strength in transverse direction of high-temperature superconducting tape of second generation, method for statistical analysis of measurement results, device for peeling strength of high-temperature superconducting tape of second generation and corresponding welding device |
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| WO2022116025A1 (en) * | 2020-12-02 | 2022-06-09 | 兰州大学 | Method for measuring transverse delamination strength of second-generation high-temperature superconducting tape, measurement data statistical analysis method, and device for testing delamination strength of two-generation high-temperature superconducting tape and welding fixture thereof |
| RU2821707C1 (en) * | 2020-12-02 | 2024-06-26 | Университет Ланьчжоу | Method of measuring peel strength in transverse direction of high-temperature superconducting tape of second generation, method for statistical analysis of measurement results, device for peeling strength of high-temperature superconducting tape of second generation and corresponding welding device |
| CN113295551A (en) * | 2021-04-01 | 2021-08-24 | 张家港市海宇金属材料测试有限公司 | Shear load testing method for pipe plate welding structure |
| CN114593989A (en) * | 2022-05-10 | 2022-06-07 | 西南交通大学 | Ballastless track cohesion parameter assembly type measuring device and measuring method thereof |
| CN114593989B (en) * | 2022-05-10 | 2022-07-29 | 西南交通大学 | Ballastless track cohesion parameter assembly type measuring device and measuring method thereof |
| CN115406751A (en) * | 2022-10-31 | 2022-11-29 | 核工业西南物理研究院 | Welding type conduction experiment clamp for high-temperature superconducting cable and method thereof |
| CN115406751B (en) * | 2022-10-31 | 2023-02-03 | 核工业西南物理研究院 | Welding type conduction experiment fixture for high-temperature superconducting cable and method thereof |
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