CN109813749A - A kind of dilatometer for Neutron diffractometer - Google Patents
A kind of dilatometer for Neutron diffractometer Download PDFInfo
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- CN109813749A CN109813749A CN201811649187.2A CN201811649187A CN109813749A CN 109813749 A CN109813749 A CN 109813749A CN 201811649187 A CN201811649187 A CN 201811649187A CN 109813749 A CN109813749 A CN 109813749A
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- Prior art keywords
- dilatometer
- neutron
- sample
- diffractometer
- rotating shaft
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- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000001683 neutron diffraction Methods 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007572 expansion measurement Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a kind of dilatometers for Neutron diffractometer, internal residual stress and the coefficient of expansion for test sample simultaneously, the dilatometer of Neutron diffractometer includes sealing container, sample is contained in sealing container, the dilatometer of Neutron diffractometer further includes balance clamp structure, balancing clamp structure includes clamping plate, central rotating shaft, two link mechanisms and two supporting rods, central rotating shaft is rotatablely installed in clamping plate, each link mechanism is slidably mounted on clamping plate, and one end and central rotating shaft are rotatablely connected, the other end is fixedly connected with a supporting rod, two supporting rods protrude into sealing container clamping sample, when sample expansion, balancing clamp structure keeps sample center constant, to guarantee that neutron stress measurement position is constant always.
Description
Technical field
The present invention relates to dilatometers, more particularly, to a kind of dilatometer for Neutron diffractometer.
Background technique
Metal material in-situ test usually requires to carry out under high temperature or low temperature condition, such as measures the coefficient of expansion, internal residual
Residue stress, phase transformation etc..For the relationship established between metal material phase-change characteristic, internal residual stress, it usually needs take twice
Experiment, therefore experiment cannot establish valid data connection.When carrying out in-situ stress measurement and the coefficient of expansion respectively to same sample
Measurement, that is, not can guarantee the identity of measurement position, as heating leads to the sample coefficient of expansion or internal micro- twice
See the change of institutional framework.Therefore developing a kind of dilatometer that does not vary with temperature of guarantee sample measurement position has great meaning
Justice.
Summary of the invention
For overcome the deficiencies in the prior art, when being tested the purpose of the present invention is to provide a kind of original position, while in measurement
Portion's residual stress and the coefficient of expansion, and guarantee the constant dilatometer for Neutron diffractometer in measuring center position.
The purpose of the present invention is implemented with the following technical solutions:
A kind of dilatometer for Neutron diffractometer, for the internal residual stress and the coefficient of expansion of test sample, institute
The dilatometer for stating Neutron diffractometer includes sealing container, and the sample is contained in the sealing container, the neutron diffraction spectrum
The dilatometer of instrument further includes balance clamp structure, and the balance clamp structure includes clamping plate, central rotating shaft, two link mechanisms and two
Supporting rod, in the clamping plate, each link mechanism is slidably mounted on the clamping plate for the central rotating shaft rotational installation, and
One end and the central rotating shaft are rotatablely connected, and the other end is fixedly connected with a supporting rod, and two supporting rods protrude into described
Sealing container clamps the sample, and when sample expansion, the balance clamp structure keeps the sample center not
Become.
Further, the dilatometer for Neutron diffractometer further includes two adjustment structures, each adjustment knot
Structure includes rotation bolt and elastic component, and the rotation bolt is rotatablely installed in the clamping plate, the elastic component both ends respectively with institute
It states rotation bolt and the link mechanism contradicts.
Further, the link mechanism includes con-rod only and connects hinge, described con-rod only one end and it is described in
The rotation connection of heart shaft, the other end and the connects hinge are rotatablely connected, and the con-rod only is slidably mounted on the clamping plate simultaneously
It is fixedly connected with the supporting rod.
Further, the elastic component and the connects hinge contradict.
Further, the elastic component is parallel with the supporting rod.
Further, the dilatometer for Neutron diffractometer further includes torque sensor, the torque sensor
It is installed on the link mechanism, the rotation bolt is adjusted by the reading of the torque sensor.
Further, the dilatometer for Neutron diffractometer further includes absolute encoder, the absolute encoder
It is installed on the amount of spin that the central rotating shaft measures the central rotating shaft, in order to calculate the swell increment of the sample.
Further, the dilatometer for Neutron diffractometer further includes temperature control system, the temperature control
Structure includes heating device and temperature measuring equipment, and the heating device, which is located in the sealing container, heats the sample,
The temperature measuring equipment is fixed on the sample and controls the temperature of the sample.
Further, the temperature measuring equipment is patch thermocouple.
Further, the sealing container is vacuum or filling inert gas.
Compared with prior art, the present invention further includes balance clamp structure, torque biography for the dilatometer of Neutron diffractometer
Sensor and absolute encoder, balance clamp structure includes clamping plate, central rotating shaft, two link mechanisms and two supporting rods, central rotating shaft
Be rotatablely installed in clamping plate, each link mechanism is slidably mounted on clamping plate, and one end and central rotating shaft are rotatablely connected, the other end with
One supporting rod is fixedly connected, and two supporting rods protrude into sealing container clamping sample, and when sample expansion, balance clamp structure keeps sample
Product center is constant, and when making many experiments, neutron stress measurement position is more stable.
Detailed description of the invention
Fig. 1 is a perspective view of the present invention for the dilatometer of Neutron diffractometer；
Fig. 2 is the front view of the dilatometer for Neutron diffractometer of Fig. 1；
Fig. 3 is the schematic diagram of internal structure of the dilatometer for Neutron diffractometer of Fig. 1；
Fig. 4 is the internal structure perspective view of the dilatometer for Neutron diffractometer of Fig. 3；
Fig. 5 is the top view of the dilatometer for Neutron diffractometer of Fig. 1；
Fig. 6 is the use state diagram of the dilatometer for Neutron diffractometer of Fig. 1.
In figure: 100, for the dilatometer of Neutron diffractometer；10, pedestal；20, sealing container；30, temperature control knot
Structure；31, heating device；32, temperature measuring equipment；40, clamp structure is balanced；41, clamping plate；42, central rotating shaft；43, link mechanism；
430, con-rod only；431, connects hinge；44, supporting rod；50, structure is adjusted；51, bolt is rotated；52, elastic component；60, torque
Sensor；70, absolute encoder；200, sample；300, collimator；400, neutron detector；500, neutron beam.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or it there may also be another intermediate module, is fixed by intermediate module.When a component is considered as " connection " another group
Part, it can be directly to another component or may be simultaneously present another intermediate module.When a component is considered
It is " being set to " another component, it, which can be, is set up directly on another component or may be simultaneously present another middle groups
Part.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement simply to illustrate that mesh
's.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Fig. 1 to Fig. 5 is please referred to, a kind of dilatometer 100 for Neutron diffractometer of the present invention is for measuring sample 200
Stress, the dilatometer 100 for Neutron diffractometer include pedestal 10, sealing container 20, temperature control system 30, balance clamping
Structure 40, two adjusts structure 50, torque sensor 60, absolute encoder 70.
Sealing container 20 is installed on pedestal 10.Sealing container 20 uses uniform thickness aluminum material, with guarantee it is incident and
Scattered neutron attenuation degree is consistent in all angles.Sealing container 20 be vacuum or filling inert gas, prevent sample 200 compared with
It is aoxidized under low hot environment.Sealing container 20 is cylindrical enclosure hollow structure, it can be achieved that irradiation on neutron any direction, and
Scattered neutron and X-ray attenuation degree are essentially identical.
Temperature control system 30 includes heating device 31 and temperature measuring equipment 32.Heating device 31 is fixed on pedestal 10 and in spiral shell
Revolve shape.Sample 200 is located in heating device 31, and heating device 31 heats sample 200.Temperature measuring equipment 32 is fixedly welded on
200 surface of sample carries out thermometric to sample 200.In one embodiment, heating device 31 is heating coil, and temperature measuring equipment 32 is
Patch thermocouple.Heating device 31 and temperature measuring equipment 32 are connect by 10 terminal of pedestal with external equipment.
Balancing clamp structure 40 includes clamping plate 41, central rotating shaft 42, two link mechanisms 43 and two supporting rods 44.Central rotating shaft
42 rotational installations are in clamping plate 41.Each link mechanism 43 includes con-rod only 430 and connects hinge 431.430 end of con-rod only
It is rotatablely connected with central rotating shaft 42.Connects hinge 431, which is slidably mounted on clamping plate 41 and rotates with 430 other end of con-rod only, to be connected
It connects.Each supporting rod 44 is fixedly installed in connects hinge 431 and protrudes into sealing container 20.Sample 200 is held in two clampings
Between bar 44.Supporting rod 44 is made of quartz, reduces systematic error caused by temperature change.
Each adjustment structure 50 includes rotation bolt 51 and elastic component 52.Bolt 51 is rotated to be rotatablely installed in clamping plate 41,
52 one end of elastic component and rotation bolt 51 contradict, and the other end and connects hinge 431 contradict.Elastic component 52 is spring.Moment sensing
Device 60 is installed on link mechanism 43, passes through the reading adjustment rotation bolt 51 of torque sensor 60.Absolute encoder 70 is installed on
The amount of spin of 42 measuring center shaft 42 of central rotating shaft, in order to calculate the swell increment of sample 200.
Please continue to refer to Fig. 6, when carrying out the stress measurement of sample 200 using the dilatometer 100 for Neutron diffractometer,
Two neutron detectors 400 be arranged in 500 vertical direction of neutron beam, and with 200 measurement position centering of sample.In order to avoid hiding
Neutron beam 500 and scattered neutron are kept off, the dilatometer 100 for Neutron diffractometer needs and the arrangement at 45 ° of neutron beam 500.This
When, 45 ° of X-ray and 500 angle of neutron beam, two kinds of measurement methods can be tested respectively, can't interfere with each other.Used in
100 two sides of dilatometer of sub- diffraction screen are also respectively disposed with collimator 300, neutron detector 400, collimator 300 and are used for
The dilatometer 100 of Neutron diffractometer is located in a straight line.
When sample 200 expands, balance clamp structure 40 keeps 200 center of sample constant, when making many experiments, in
Sub- stress measurement position is more stable.Supporting rod 44 is made of quartz, reduces systematic error caused by temperature change.Adjust structure
50 elastic component 52 makes the pressure controllable applied to sample 200, in case sample 200 and support construction are detached from.Central rotating shaft 42 is set
Fine angle measuring device is set, to measure swell increment.Accurate torque measuring device is arranged in central rotating shaft 42, to measure pre- folder
Clamp force.For the dilatometer 100 and the arrangement at 45 ° of neutron beam 500 of Neutron diffractometer, thermal expansion measurement and neutron can satisfy
Stress measurement carries out simultaneously, does not interfere with each other.20 cylindrical type of sealing container closes hollow structure, it can be achieved that neutron any direction
Irradiation, and scattered neutron and X-ray attenuation degree are essentially identical.20 cylinder closed structure of sealing container uses aluminum metal
Material is reduced to neutron attenuation.20 enclosed type inner cavity of sealing container, vacuum-pumping and filling inert gas, prevent sample
200 aoxidize under lower hot environment.Measurement structure is located on the outside of closing chamber, is not influenced by internal high temperature, it can be achieved that sample 200
High precision position shift measurement.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (10)
1. a kind of dilatometer for Neutron diffractometer, described for the internal residual stress and the coefficient of expansion of test sample
The dilatometer of Neutron diffractometer includes sealing container, and the sample is contained in the sealing container, it is characterised in that: in described
The dilatometer of sub- diffraction screen further includes balance clamp structure, and the balance clamp structure includes clamping plate, central rotating shaft, two connecting rods
Structure and two supporting rods, in the clamping plate, each link mechanism is slidably mounted on described for the central rotating shaft rotational installation
Clamping plate, and one end and the central rotating shaft are rotatablely connected, and the other end is fixedly connected with a supporting rod, two supporting rods
It protrudes into the sealing container and clamps the sample, when sample expansion, the balance clamp structure is kept in the sample
Heart position is constant.
2. the dilatometer according to claim 1 for Neutron diffractometer, it is characterised in that: described to be used for neutron diffraction
The dilatometer of spectrometer further includes two adjustment structures, and each adjustment structure includes rotation bolt and elastic component, the rotation spiral shell
Bolt rotational installation is contradicted with the rotation bolt and the link mechanism respectively in the clamping plate, the elastic component both ends.
3. the dilatometer according to claim 2 for Neutron diffractometer, it is characterised in that: the link mechanism includes
Con-rod only and connects hinge, described con-rod only one end and the central rotating shaft are rotatablely connected, the other end and the connecting hinge
Chain rotation connection, the con-rod only are slidably mounted on the clamping plate and are fixedly connected with the supporting rod.
4. the dilatometer according to claim 3 for Neutron diffractometer, it is characterised in that: the elastic component with it is described
Connects hinge contradicts.
5. the dilatometer according to claim 4 for Neutron diffractometer, it is characterised in that: the elastic component with it is described
Supporting rod is parallel.
6. the dilatometer according to claim 2 for Neutron diffractometer, it is characterised in that: described to be used for neutron diffraction
The dilatometer of spectrometer further includes torque sensor, and the torque sensor is installed on the link mechanism, is passed by the torque
The reading of sensor adjusts the rotation bolt.
7. the dilatometer according to claim 1 for Neutron diffractometer, it is characterised in that: described to be used for neutron diffraction
The dilatometer of spectrometer further includes absolute encoder, and the absolute encoder is installed on the central rotating shaft and measures the central rotating shaft
Amount of spin, in order to calculate the swell increment of the sample.
8. the dilatometer according to claim 1 for Neutron diffractometer, it is characterised in that: described to be used for neutron diffraction
The dilatometer of spectrometer further includes temperature control system, and the temperature control system includes heating device and temperature measuring equipment, it is described plus
Thermal, which is located in the sealing container, heats the sample, and the temperature measuring equipment is fixed on the sample and to described
The temperature of sample is controlled.
9. the dilatometer according to claim 8 for Neutron diffractometer, it is characterised in that: the temperature measuring equipment is patch
Piece thermocouple.
10. the dilatometer according to claim 1 for Neutron diffractometer, it is characterised in that: the sealing container is
Vacuum or filling inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649187.2A CN109813749A (en) | 2018-12-30 | 2018-12-30 | A kind of dilatometer for Neutron diffractometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649187.2A CN109813749A (en) | 2018-12-30 | 2018-12-30 | A kind of dilatometer for Neutron diffractometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109813749A true CN109813749A (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811649187.2A Pending CN109813749A (en) | 2018-12-30 | 2018-12-30 | A kind of dilatometer for Neutron diffractometer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001050913A (en) * | 1999-08-13 | 2001-02-23 | Rigaku Corp | Apparatus and method for holding of sample |
| CN2478097Y (en) * | 2000-01-31 | 2002-02-20 | 石油勘探开发科学研究院钻井工艺研究所 | Intelligent dilatometer |
| CN1584570A (en) * | 2004-06-01 | 2005-02-23 | 北京交通大学 | Indirecting measuring method for thin-membrane material line expanding coefficient |
| JP6264591B1 (en) * | 2017-03-28 | 2018-01-24 | パルステック工業株式会社 | Thermal expansion coefficient measuring method and X-ray diffraction measuring apparatus |
| CN209784232U (en) * | 2018-12-30 | 2019-12-13 | 东莞材料基因高等理工研究院 | Dilatometer for neutron diffraction spectrometer |
-
2018
- 2018-12-30 CN CN201811649187.2A patent/CN109813749A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001050913A (en) * | 1999-08-13 | 2001-02-23 | Rigaku Corp | Apparatus and method for holding of sample |
| CN2478097Y (en) * | 2000-01-31 | 2002-02-20 | 石油勘探开发科学研究院钻井工艺研究所 | Intelligent dilatometer |
| CN1584570A (en) * | 2004-06-01 | 2005-02-23 | 北京交通大学 | Indirecting measuring method for thin-membrane material line expanding coefficient |
| JP6264591B1 (en) * | 2017-03-28 | 2018-01-24 | パルステック工業株式会社 | Thermal expansion coefficient measuring method and X-ray diffraction measuring apparatus |
| CN209784232U (en) * | 2018-12-30 | 2019-12-13 | 东莞材料基因高等理工研究院 | Dilatometer for neutron diffraction spectrometer |
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