CN106769842A - A kind of test system and method for testing for fibrous material frictional behavior under normal low temperature environment - Google Patents
A kind of test system and method for testing for fibrous material frictional behavior under normal low temperature environment Download PDFInfo
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- CN106769842A CN106769842A CN201611235354.XA CN201611235354A CN106769842A CN 106769842 A CN106769842 A CN 106769842A CN 201611235354 A CN201611235354 A CN 201611235354A CN 106769842 A CN106769842 A CN 106769842A
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- 238000012360 testing method Methods 0.000 title claims abstract description 85
- 239000002657 fibrous material Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000010998 test method Methods 0.000 claims abstract description 4
- 238000009730 filament winding Methods 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 206010042618 Surgical procedure repeated Diseases 0.000 claims description 2
- 238000012956 testing procedure Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 4
- 238000011160 research Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000657 niobium-tin Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension 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
- G01N19/02—Measuring coefficient of friction between materials
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- 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)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a kind of test system for fibrous material frictional behavior under normal low temperature environment, including cupping machine, strain acquirement instrument, test device and monitoring and control system, the test device includes testing tube, balancing weight and test bracket, the testing tube is placed horizontally on the test bracket, after filament winding testing tube one is enclosed, the lower end of silk hangs a balancing weight, and upper end is connected with strain acquirement instrument；The test system also includes U-shaped Dewar type container, and the test device is located in U-shaped Dewar type container, and the Dewar type container submerges whole test device built with liquid nitrogen, liquid nitrogen；Invention also provides a kind of method of testing for fibrous material frictional behavior under normal low temperature environment.The present invention with strain acquirement instrument replaces traditional force snesor and grasps small deformation in filament friction process flutterring, and the test temperature of low temperature is provided with Dewar type container, be achieved in that fiber wire material often, under low temperature environment its frictional behaviour test.
Description
Technical field
It is especially a kind of for fine under normal low temperature environment the invention belongs to the technical field of measurement and test of fibrous material frictional behavior
Tie up the test system and method for testing of specific property of material friction.
Background technology
The filaments such as fibrous material, especially NbTi, Nb3Sn have more and more important application in superconductivity.Low
Deformation and stress characteristic under warm working environment are one of major issues that superconductivity research is paid special attention to.In general,
The frictional behavior of fibrous material is often interrelated with its temperature field（Coupling）, therefore a set of satisfaction of design goes application circumstances
Device, be to its Electromagnetism Characteristics test necessary, indispensable premise.The research of the device, exploitation, can be fibre
The frictional behavior test for tieing up material provides test platform, there is provided a necessary temperature environment, with certain scientific meaning.
It can be seen from existing literature survey, up to now, rarely have the research for fibrous material frictional behavior, mainly by
In the limitation of test device.With the development of science and technology fibrous material is used widely, at the same time, rub the energy for producing
Loss is also quite big, therefore studies the frictional behavior of its fibrous material with very big realistic meaning.
The content of the invention
For the dust polluting environment produced when preventing and treating bulk cargo entrucking, the present invention provides a kind of for fine under normal low temperature environment
The test system of specific property of material friction, including cupping machine, strain acquirement instrument, test device and monitoring and control system are tieed up,
The test device includes testing tube, balancing weight and test bracket, and the testing tube is placed horizontally on the test bracket, fine
After dimension silk winding testing tube one is enclosed, the lower end of silk hangs a balancing weight, and upper end is connected with strain acquirement instrument, and the strain acquirement instrument is consolidated
It is scheduled on cupping machine crossbeam, the monitoring and control system include the electricity being connected by communication interface with strain acquirement instrument
Brain.
Preferably, the test system also includes U-shaped Dewar type container, and the test device is located in U-shaped Dewar type container, institute
Dewar type container is stated built with liquid nitrogen, liquid nitrogen submerges whole test device.
Preferably, a diameter of 3cm of the testing tube, length is 10cm, a height of 50cm of test bracket, and length is 10cm.
Preferably, the height of the U-shaped Dewar type container is 70cm.
Present invention simultaneously provides a kind of method of testing for fibrous material frictional behavior under normal low temperature environment, its feature exists
In,
Test under normal temperature is comprised the following steps：
Testing tube will be wound one week on filament first, upper end is fixed on strain acquirement instrument, and lower end hangs a balancing weight, then
Start cupping machine, the crossbeam of cupping machine 1 is moved upwards with constant speed, now deformeter Acquisition Instrument Real-time Collection
Filament is with the voltage signal in testing tube friction process, and output voltage signal is sent to computer, finally, is obtained by conversion
Coefficient of friction versus time curve；
Test under low temperature is comprised the following steps：
1）Liquid nitrogen pours into Dewar type container and submerges whole test device, treats that liquid nitrogen surface-stable is tested；
2）The testing procedure repeated under normal temperature obtains coefficient of friction versus time curve.Effect.
The present invention with strain acquirement instrument replaces traditional force snesor and grasps small change in filament friction process flutterring
Shape, and the test temperature of low temperature is provided with Dewar type container, be achieved in that fiber wire material often, its frictional behaviour under low temperature environment
Test.
By the invention it is possible to the mechanical characteristic of fibrous material is carried out deeper into research, be that following its preferably should
With laying the foundation.
Brief description of the drawings
Fig. 1 is that the structure for the test system of fibrous material frictional behavior under normal low temperature environment of the embodiment of the present invention is shown
It is intended to.
Fig. 2 is the test dress for the test system of fibrous material frictional behavior under normal low temperature environment of the embodiment of the present invention
The structural representation put.
Specific embodiment
Technical solution of the present invention is discussed in detail below in conjunction with the accompanying drawings.
Generally, the frictional force of fibrous material is especially small, is difficult to flutter with the means of traditional dynamometry and grasps its frictional force, it is considered to super
The characteristics of leading material at low temperature and work, applicant's design is a kind of to replace traditional force snesor to gather friction with strain acquirement instrument
During produce small power, and be firstly introduced Dewar device and realize that often, under low temperature environment the frictional behavior of fibrous material is surveyed for it
Examination function, cardinal principle figure is as follows：
As shown in figure 1, strain acquirement instrument 2 is fixed on the crossbeam of cupping machine 1, strain acquirement instrument 2 passes through RS-232 with computer 7
Communication interface 8 is connected, with moving up for stretching-machine（Speed constant upwards is provided）, simultaneously output voltage signal is passed Real-time Collection
Computer 7 is sent to, by conversion, coefficient of friction versus time curve is finally given.In this test system, dress will be entirely tested
Put 6 and be positioned over height in the U-shaped Dewar type container 5 of 70cm, when low-temperature test is carried out, liquid nitrogen 4 pours into Dewar type container and submerges
Whole test device 6, treats that liquid nitrogen surface-stable is tested.
Arrow show the direction of crossbeam rising in figure.
Wherein test device is as shown in Fig. 2 in test device, after the winding testing tube 13 1 of filament 3 is enclosed, the lower end of silk hangs
One balancing weight 11（Block must be obtained vacantly, it is impossible to have any contact with testing jig.）, upper end links to strain acquirement instrument.Pass through
Convert the weight of balancing weight, the coefficient of friction that can be tested under different weights.In the present apparatus, testing tube 13 is 3cm*10cm（Directly
Footpath is 3cm）, test bracket 12 a height of 50cm, width 10cm as copper pipe length.
Test under normal temperature, will wind testing tube one week on filament first, and upper end is fixed on deformeter, lower end suspension
One balancing weight, then starts cupping machine（Speed constant upwards is provided）, now deformeter collection filament is with testing tube
Voltage signal in friction process, finally, coefficient of friction versus time curve is obtained by conversion.
Method of testing under low temperature simply pours into liquid nitrogen as normal temperature in U-shaped low-temperature (low temperature) vessel, silk and testing tube are located completely
In liquid nitrogen environment, tested after after liquid nitrogen surface-stable.
The present invention is consisted of for the test system of fibrous material frictional behavior under normal low temperature environment：Cupping machine
1, U-shaped low-temperature (low temperature) vessel 1,1 set of strain acquisition system, 1 set of test device.
The present invention with strain acquirement instrument replaces traditional force snesor and grasps small change in filament friction process flutterring
Shape, and the test temperature of low temperature is provided with Dewar type container, be achieved in that fiber wire material often, its frictional behaviour under low temperature environment
Test.
By the invention it is possible to the mechanical characteristic of fibrous material is carried out deeper into research, be that following its preferably should
With laying the foundation.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (5)
1. a kind of test system for fibrous material frictional behavior under normal low temperature environment, including cupping machine, strain acquirement
Instrument, test device and monitoring and control system, the test device include testing tube, balancing weight and test bracket, the test
Pipe is placed horizontally on the test bracket, and after filament winding testing tube one is enclosed, the lower end of silk hangs a balancing weight, upper end with should
Become Acquisition Instrument to be connected, the strain acquirement instrument is fixed on cupping machine crossbeam, the monitoring and control system include and answer
Become the computer that Acquisition Instrument is connected by communication interface.
2. the test system for fibrous material frictional behavior under normal low temperature environment according to claim 1, its feature exists
In the test system also includes U-shaped Dewar type container, and the test device is located in U-shaped Dewar type container, in the Dewar type container
Equipped with liquid nitrogen, liquid nitrogen submerges whole test device.
3. the test system for fibrous material frictional behavior under normal low temperature environment according to claim 1, its feature exists
In a diameter of 3cm of testing tube, length is 10cm, a height of 50cm of test bracket, and length is 10cm.
4. the test system for fibrous material frictional behavior under normal low temperature environment according to claim 2, its feature exists
In the height of the U-shaped Dewar type container is 70cm.
5. a kind of method of testing for fibrous material frictional behavior under normal low temperature environment, it is characterised in that
Test under normal temperature is comprised the following steps：
Testing tube will be wound one week on filament first, upper end is fixed on strain acquirement instrument, and lower end hangs a balancing weight, then
Start cupping machine, the crossbeam of cupping machine 1 is moved upwards with constant speed, now deformeter Acquisition Instrument Real-time Collection
Filament is with the voltage signal in testing tube friction process, and output voltage signal is sent to computer, finally, is obtained by conversion
Coefficient of friction versus time curve；
Test under low temperature is comprised the following steps：
1）Liquid nitrogen pours into Dewar type container and submerges whole test device, treats that liquid nitrogen surface-stable is tested,
2）The testing procedure repeated under normal temperature obtains coefficient of friction versus time curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235354.XA CN106769842A (en) | 2016-12-28 | 2016-12-28 | A kind of test system and method for testing for fibrous material frictional behavior under normal low temperature environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235354.XA CN106769842A (en) | 2016-12-28 | 2016-12-28 | A kind of test system and method for testing for fibrous material frictional behavior under normal low temperature environment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318415A (en) * | 2018-01-31 | 2018-07-24 | 兰州大学 | One kind being based on the visual thin-film material friction test device of GM refrigeration machines |
| CN110261298A (en) * | 2019-07-18 | 2019-09-20 | 天津工业大学 | A kind of test method of fiber interfascicular frictional behaviour |
| CN113210459A (en) * | 2021-04-21 | 2021-08-06 | 大连理工大学 | Device and method for measuring friction coefficient of fillet area formed by ultralow-temperature deep drawing of metal plate |
| CN113447430A (en) * | 2020-03-25 | 2021-09-28 | 赣州西维尔金属材料科技有限公司 | Fiber surface coating bonding force testing device and testing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209589A (en) * | 1962-05-22 | 1965-10-05 | Mousanto Company | Yarn friction measuring instrument |
| CN1261663A (en) * | 2000-02-24 | 2000-08-02 | 上海交通大学 | Testing method and device for micro bearing friction coefficient |
| CN101526463A (en) * | 2009-04-23 | 2009-09-09 | 哈尔滨工业大学 | Experimental apparatus for testing sliding friction property of friction materials |
| US20120144896A1 (en) * | 2009-08-12 | 2012-06-14 | Dow Global Technologies Llc | Apparatus to determine coefficient of friction |
| CN104007060A (en) * | 2014-06-17 | 2014-08-27 | 浙江华峰氨纶股份有限公司 | Device for continuously measuring friction coefficient between elastic fibers |
| CN105445114A (en) * | 2015-12-09 | 2016-03-30 | 中国科学院合肥物质科学研究院 | Testing apparatus for low-temperature performance of superconductive strand |
| CN206362684U (en) * | 2016-12-28 | 2017-07-28 | 兰州大学 | It is a kind of to be used for the test system of fibrous material frictional behavior under normal low temperature environment |
-
2016
- 2016-12-28 CN CN201611235354.XA patent/CN106769842A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209589A (en) * | 1962-05-22 | 1965-10-05 | Mousanto Company | Yarn friction measuring instrument |
| CN1261663A (en) * | 2000-02-24 | 2000-08-02 | 上海交通大学 | Testing method and device for micro bearing friction coefficient |
| CN101526463A (en) * | 2009-04-23 | 2009-09-09 | 哈尔滨工业大学 | Experimental apparatus for testing sliding friction property of friction materials |
| US20120144896A1 (en) * | 2009-08-12 | 2012-06-14 | Dow Global Technologies Llc | Apparatus to determine coefficient of friction |
| CN104007060A (en) * | 2014-06-17 | 2014-08-27 | 浙江华峰氨纶股份有限公司 | Device for continuously measuring friction coefficient between elastic fibers |
| CN105445114A (en) * | 2015-12-09 | 2016-03-30 | 中国科学院合肥物质科学研究院 | Testing apparatus for low-temperature performance of superconductive strand |
| CN206362684U (en) * | 2016-12-28 | 2017-07-28 | 兰州大学 | It is a kind of to be used for the test system of fibrous material frictional behavior under normal low temperature environment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318415A (en) * | 2018-01-31 | 2018-07-24 | 兰州大学 | One kind being based on the visual thin-film material friction test device of GM refrigeration machines |
| CN110261298A (en) * | 2019-07-18 | 2019-09-20 | 天津工业大学 | A kind of test method of fiber interfascicular frictional behaviour |
| CN113447430A (en) * | 2020-03-25 | 2021-09-28 | 赣州西维尔金属材料科技有限公司 | Fiber surface coating bonding force testing device and testing method |
| CN113447430B (en) * | 2020-03-25 | 2023-07-18 | 赣州西维尔金属材料科技有限公司 | Device and method for testing binding force of fiber surface coating |
| CN113210459A (en) * | 2021-04-21 | 2021-08-06 | 大连理工大学 | Device and method for measuring friction coefficient of fillet area formed by ultralow-temperature deep drawing of metal plate |
| CN113210459B (en) * | 2021-04-21 | 2022-05-20 | 大连理工大学 | Device and method for measuring friction coefficient of fillet area formed by ultralow-temperature deep drawing of metal plate |
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