CN209606242U - For small-angle neutron scattering experiment high temperature and stretch the device in situ for coupling and loading - Google Patents
For small-angle neutron scattering experiment high temperature and stretch the device in situ for coupling and loading Download PDFInfo
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- CN209606242U CN209606242U CN201822140035.1U CN201822140035U CN209606242U CN 209606242 U CN209606242 U CN 209606242U CN 201822140035 U CN201822140035 U CN 201822140035U CN 209606242 U CN209606242 U CN 209606242U
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Abstract
The utility model relates to a kind of for small-angle neutron scattering experiment high temperature and stretch the device in situ of coupling load, including loading frame, high-temperature clamp and high temperature furnace；The high temperature furnace and high-temperature clamp are installed on the loading frame；The high-temperature clamp protrudes into the high temperature furnace and carries out stretching operation to sample；Middle child window is provided on the high temperature furnace.The beneficial effects of the utility model are as follows: 1) using the arrangement achieves the small-angle neutron scattering of high temperature and stretching coupling load, experiment is measured in situ.2) high temperature furnace shape is cuboid, includes two pieces of flat-plate heating bodies, is symmetrically arranged, and slot milling arrangement sample and high-temperature clamp, can make Proper Design beauty compact, sample position temperature is uniform in this way among two pieces of heaters.High temperature furnace reduces the decaying to neutron to the greatest extent while guaranteeing sealing.Be conducive to obtain biggish scattering angle simultaneously, collect the high Q data of small-angle scattering.
Description
Technical field
The utility model belongs to Neutron scattering technology, and in particular to one kind is for small-angle neutron scattering experiment high temperature and stretching
Couple the device in situ of load.
Background technique
Current neutron scattering experiment room major in the world all measures material using small-angle neutron scattering technology actively developing
The related work of nanoscale microstructure, but specially design and produce small for the original position under the conditions of high temperature and stretching coupling
Angle neutron scattering experiment device yet there are no open source literature report.
Currently, having high-temp in-situ device for small-angle neutron scattering spectrometer, also there is tensile load original position device；But
These devices are unable to satisfy while carrying out tensile load and temperature coupling experiment to sample, and the prior art is merely by the two
Test the processing of obtained data individually theoretically analyzed the case where coupling, which not necessarily meets
Actual conditions.
Therefore, it is necessary to complete a kind of drawing by high temperature coupling load experiment dress in situ for small-angle neutron scattering measurement
It sets, can meet while carry out under the conditions of high temperature relents tensile loads to sample the primary demand of small-angle neutron scattering measurement,
Further expand the range of Neutron scattering technology research application.
In view of this, special propose the utility model.
Utility model content
In view of the deficiencies in the prior art, the purpose of the utility model is to provide one kind surveys for small-angle neutron scattering
The drawing by high temperature coupling of amount loads experimental provision in situ, can meet and meanwhile under the conditions of high temperature relents tensile loads to sample into
The primary demand of row small-angle neutron scattering measurement further expands the range of Neutron scattering technology research application.
The technical solution of the utility model is as follows:
A kind of device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, including loading frame, height
Warm fixture and high temperature furnace；The high temperature furnace and high-temperature clamp are installed on the loading frame；The high-temperature clamp protrudes into institute
It states in high temperature furnace and stretching operation is carried out to sample；Middle child window is provided on the high temperature furnace.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
High-temperature clamp includes upper connecting rod, connecting rod, collet and lower pull rod；Described upper connecting rod one end is installed on the loading frame, separately
One end is connect by the connecting rod with the collet；Described sample one end is connect with the collet, the other end and the drop-down
Bar connection；The lower pull rod and loading mechanism are drivingly connected to stretch the sample under the driving of the loading mechanism.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
Loading mechanism includes ball-screw and load actuator；The ball wire and driving mechanism are drivingly connected；The load actuator
Be mounted on the loading frame and fixed with the screw of ball-screw, in the load actuator install rotation-preventing mechanism so that plus
Carrying actuator can only move up and down without being able to rotate；Load cell is installed in the load actuator.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
Temperature compensation module is provided on load cell.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
High-temperature clamp further includes high-temperature extensometer, the high-temperature extensometer include the upper snap ring being connected with the sample and with the drop-down
The connected lower snap ring of bar；Bar of extending is connected between the upper snap ring and lower snap ring；The lower snap ring can be along the bar of extending
It is mobile；The bar end of extending is equipped with grating sensor.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
The pin hole with the screw thread of cylindrical sample head fits and/or with the cooperation of tabular sample is provided on collet.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
High temperature furnace includes stove outer covering, bell, muffle tube, ceramic end seat, magnetic board and heater；The bell is opposite with the stove outer covering
Fixed, muffle tube is supported in the end seat being installed on the bell；The heater is mounted in the groove of the muffle tube；
The magnetic board is installed on the stove outer covering；Middle child window is located at the two sides of the high temperature furnace, and side is incident window, another
Side is exit window；Thermal insulation material is filled between the muffle tube and the stove outer covering；Reserved neutron beam passage, and it is described in
Cadmium is added in the furnace body material of beamlet passage proximate to absorb stray neutron.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
Stove outer covering is double-layer structure, is air buffer between two layers.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
Heater is writing board shape, is symmetrically arranged in the stove outer covering, sample and high-temperature clamp are arranged between two heaters.
Further, the above-mentioned device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is described
Middle child window uses sapphire or quartz for material.
The beneficial effects of the utility model are as follows:
1) using the arrangement achieves the small-angle neutron scattering of high temperature and stretching coupling load, experiment is measured in situ.
2) high temperature furnace shape uses cuboid, includes two pieces of flat-plate heating bodies, is symmetrically arranged, intermediate slot milling cloth
Sample and high-temperature clamp are set, Proper Design beauty can be made compact in this way, sample position temperature is uniform.
3) neutron beam is reserved along cuboid central axis in high temperature furnace pass through space, and the furnace body near neutron beam path
Cadmium is added in material, is absorbed stray neutron, is guaranteed optimal scattered signal signal-to-noise ratio.
4) cylindrical body high temperature furnace two sides use large area sapphire or the quartz child window as in, can guarantee height in this way
While warm furnace seals, the decaying to neutron is reduced to the greatest extent.It is also beneficial to obtain biggish scattering angle in this way, collects small angle
Scatter high Q data.
5) entire device in situ can be moved horizontally and vertically in the plane of vertical neutron beam, be conveniently adjusted sample center
Position is overlapped with neutron beam center.
Detailed description of the invention
Fig. 1 is the knot for testing high temperature for small-angle neutron scattering and stretch the device in situ of coupling load of the utility model
Structure schematic diagram.
Fig. 2 is the structural schematic diagram of the high-temperature clamp of the utility model one embodiment.
Fig. 3 is the high temperature furnace schematic diagram of internal structure of the utility model.
In above-mentioned attached drawing, 1, crossbeam；2, high-temperature clamp；3, high temperature furnace；4, column；5, extensometer；6, touch screen；7, light
Gate sensor；8, load cell；9, workbench；10, loading mechanism；11, servo motor；12, speed reducer；13, bottom plate；101,
Upper connecting rod；102, connecting rod；103, collet；104, upper snap ring；105, sample；106, lower snap ring；107, it extends on bar；108,
Under extend bar；109, lower pull rod；301, incident window；302, exit window；303, heater；304, seal bellows； 305,
Sample.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the utility model, which provides one kind, couples load for small-angle neutron scattering experiment high temperature and stretching
Device in situ, including loading frame, high-temperature clamp 2 and high temperature furnace 3；The high temperature furnace 3 and high-temperature clamp 2 are installed in described
On loading frame；The high-temperature clamp 2 protrudes into the high temperature furnace 3 and carries out stretching operation to sample 105；On the high temperature furnace 3
It is provided with middle child window.The loading frame be include the door type structure of double columns 4, and be provided with the touching for showing and controlling
Touch screen 6.
As shown in Fig. 2, the high-temperature clamp 2 includes upper connecting rod 101, connecting rod 102, collet 103 and lower pull rod 109；Institute
101 one end of upper connecting rod is stated to be installed in the upper beam 1 of the loading frame, the other end by the connecting rod 102 with it is described
Collet 103 connects；Described sample one end is connect with the collet 103, and the other end is connect with the lower pull rod 109；The drop-down
Bar 109 is drivingly connected with the loading mechanism 10 being mounted on the loading frame to stretch under the driving of the loading mechanism 10
The sample 105；Load cell 8 is additionally provided on the loading mechanism 10.Temperature benefit is provided on the load cell 8
Repay module.The high-temperature clamp 2 further includes high-temperature extensometer 5, and the high-temperature extensometer 5 includes being connected with the sample 105
Upper snap ring 104 and the lower snap ring 106 being connected with the lower pull rod 109；It is connected between the upper snap ring 104 and lower snap ring 106
Extend bar (including above extend bar 107 and under extend bar 108)；The lower snap ring 106 can be moved along the bar of extending；It is described
Bar end of extending is equipped with grating sensor 7.The screw thread with 105 head fits of cylindrical sample is provided on the collet 103
And/or the pin hole cooperated with tabular sample 105.
Loading mechanism 10 shown in Fig. 1 includes ball-screw and load actuator；The ball wire and driving mechanism are driven
Dynamic connection；The load actuator is mounted on the loading frame and fixes with the screw of ball-screw, the load actuation
Rotation-preventing mechanism is installed on device so that load actuator can only be moved up and down without being able to rotate, to realize that adding for load unloads；Institute
It states load cell 8 to be mounted in the load actuator, since load cell 8 uses technique for temperature compensation, and be in
The lower end of high temperature atmosphere furnace, therefore high-temperature clamp 2 is not required to water cooling, the reliability to work when improving test captain.To protect
The concentricity of confirmatory test machine is respectively equipped with cating nipple in testing machine up and down, improves the accuracy of test result.The present embodiment
In, crossbeam 1, workbench 9, load actuator etc. use cast structure, effectively increase the strength and stiffness of system.On crossbeam 1
Fixed upper connecting rod 101, fixed loading mechanism 10 and driving mechanism between workbench 9 and bottom plate 13.Driving mechanism include by
Servo motor 11 and turbine worm reducer 12.Servo motor 11 is defeated by synchronous tooth profile band connection turbine worm reducer 12
Enter end, 12 output end of speed reducer is connected with high precision ball lead screw.Deformation measurement uses high-precision digital raster technology, precision
Height, it is noiseless, it prevents from deforming drifting problem when creep test is long, there is re-adjustments and accumulation function；Using band temperature-compensating
The load sensor of function waves problem so as to avoid because of force value caused by temperature change.
Referring to Fig. 3, in the present embodiment, the high temperature furnace 3 includes stove outer covering, bell, muffle tube, ceramic end seat, magnetic board
With heater 303 (part-structure is not shown)；High temperature furnace shape is rectangular parallelepiped structure, high 35cm.Outside the bell and the furnace
Shell is relatively fixed, and muffle tube is supported in the end seat being installed on the bell；The heater 303 is mounted on the muffle tube
Groove in；The magnetic board is installed on the stove outer covering；Middle child window is located at the two sides of the high temperature furnace, and side is incidence
Window 301, the other side are exit window 302, the use of sapphire are material.Sapphire diameter 10cm, thickness 0.2cm, it is ensured that small
Test the acquisition of high Q data (angle of scattering reaches 200) in angle.Superfine ceramic cotton is filled between the muffle tube and the stove outer covering
Thermal insulation material；Reserved neutron beam passage, and cadmium is added in the furnace body material of the neutron beam passage proximate to absorb stray neutron.
The stove outer covering is double-layer structure, is air buffer between two layers, reduces furnace table temperature.The heater is writing board shape, left
The right side is symmetrically arranged in the stove outer covering, and sample 305 and high-temperature clamp are arranged between two heaters.To guarantee that burner hearth is effective
Temperature is uniform in workspace, and heater uses two and half bareing electric-heating-wire-heatings, and every section of heater strip is respectively by all the way with micro-
The temperature controller of the digital regulated instrument of machineization controls, and 0.1 grade of precision, test temperature and setup parameter can digital displays；With upper and lower limit
Defencive function；Power cell shifts to triggering technique, works long hours reliable, temperature-controlled precision is high.Maximum temperature reaches 800 DEG C, control
Specimen temperature is detected as temperature sensor using thermocouple in warm precision ± 2 DEG C, and the hot end of thermocouple is bundled with asbestos cord to be close to
Sample working surface, cold end are drawn furnace and are placed outside in zero compensation device, and sample position temperature uniformity size is greater than 10mm*
10mm*5mm.The middle child window uses sapphire for material.Stove outer covering uses high-quality stainless steel making.Take into account relative motion and
The considerations of sealing, is provided with seal bellows 304 between high-temperature clamp 2 and high temperature furnace 3.
In use, the device in situ of the present embodiment is placed on small-angle scattering spectrometer sample stage position, neutron beam is from entrance window
Mouth, which enters, to be beaten on sample, and the neutron beam after sample scattering enters small-angle scattering spectrometer detector cavity from exit window.Specifically
Steps are as follows:
(1) standard size sample is fixed on fixture；
(2) for device in situ along X, Y-direction is mobile, is overlapped sample center with neutron beam center, determines X, the seat of Y-direction
Mark；
(3) vacuum pump and cooling water recirculation system are opened, when vacuum degree reaches 0.1Pa, the load of setting sample application
Force value and temperature value；
(4) after loading force and temperature reach target value, neutron beam lock is opened, acquires small-angle neutron scattering data；
(5) after data acquisition, neutron beam lock is closed, vacuum system is closed；
(6) when vacuum meter registration reaches atmospheric pressure, high temperature furnace is opened, sample is removed from fixture；
(7) surface radioactive pollution detector is used, sample Activation after neutron exposure is measured, if dosage is exceeded,
It is put into lead screen Special sample box；
(8) first step is repeated, next sample measurement is started.
For bar shaped and cylindrical sample, using different fixtures, measuring process is similar.
The utility model realizes in-situ high temperature and stretches coupling load small-angle neutron scattering test method.Small angle neutron is dissipated
Test and analysis technology extension is penetrated, it can be with the nanostructure of sample interior under researching high-temperature and stretching condition.Case is embodied can
Meet the copper-rich precipitate small-angle neutron scattering test under the nearly working condition of stainless steel valve rod, relevant parameter is set as temperature 300
DEG C, pulling force 10KN.Other types metal or non-metal solid sample, such as nickel base superalloy test method are consistent, according to not
Neutron cross section with type materials optimizes thickness of sample.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, belonging to the utility model claims to these modifications and variations of the present invention
And its within the scope of equivalent technology, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load, it is characterised in that: including adding
Carry frame, high-temperature clamp (2) and high temperature furnace (3)；The high temperature furnace (3) and high-temperature clamp (2) are installed in the loading frame
On；The high-temperature clamp (2), which is protruded into the high temperature furnace (3), carries out stretching operation to sample (105)；On the high temperature furnace (3)
It is provided with middle child window.
2. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as described in claim 1, special
Sign is: the high-temperature clamp (2) includes upper connecting rod (101), connecting rod (102), collet (103) and lower pull rod (109)；It is described
Upper connecting rod (101) one end is installed on the loading frame, and the other end passes through the connecting rod (102) and the collet (103)
Connection；Described sample one end is connect with the collet (103), and the other end is connect with the lower pull rod (109)；The lower pull rod
(109) it is drivingly connected with loading mechanism (10) to stretch the sample (105) under the driving of the loading mechanism (10).
3. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as claimed in claim 2, special
Sign is: the loading mechanism (10) includes ball-screw and load actuator；The ball wire and driving mechanism are drivingly connected；
The load actuator is mounted on the loading frame and fixes with the screw of ball-screw, installs in the load actuator
Rotation-preventing mechanism is so that load actuator can only be moved up and down without being able to rotate；Load cell is installed in the load actuator
(8)。
4. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as claimed in claim 3, special
Sign is: being provided with temperature compensation module on the load cell (8).
5. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as claimed in claim 2, special
Sign is: the high-temperature clamp (2) further includes high-temperature extensometer (5), and the high-temperature extensometer (5) includes and the sample
(105) connected upper snap ring (104) and the lower snap ring (106) being connected with the lower pull rod；The upper snap ring (104) and lower snap ring
(106) bar of extending is connected between；The lower snap ring (106) can move along the bar of extending；The bar end installation of extending
There are grating sensor (7).
6. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as claimed in claim 2, special
Sign is: be provided on the collet (103) with the screw thread of cylindrical sample head fits and/or with tabular sample cooperation
Pin hole.
7. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as described in claim 1, special
Sign is: the high temperature furnace (3) includes stove outer covering, bell, muffle tube, ceramic end seat, magnetic board and heater；The bell with
The stove outer covering is relatively fixed, and muffle tube is supported in the end seat being installed on the bell；The heater is mounted on described
In the groove of muffle tube；The magnetic board is installed on the stove outer covering；Middle child window is located at the two sides of the high temperature furnace (3),
Side is incident window, and the other side is exit window；Thermal insulation material is filled between the muffle tube and the stove outer covering；It is reserved
Neutron beam passage, and cadmium is added in the furnace body material of the neutron beam passage proximate to absorb stray neutron.
8. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as claimed in claim 7, special
Sign is: the stove outer covering is double-layer structure, is air buffer between two layers.
9. the device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as claimed in claim 7, special
Sign is: the heater is writing board shape, is symmetrically arranged in the stove outer covering, arranges sample between two heaters
(105) and high-temperature clamp (2).
10. the dress in situ for small-angle neutron scattering experiment high temperature and stretching coupling load as described in claim 1-9 is any
It sets, it is characterised in that: the middle child window uses sapphire or quartz for material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822140035.1U CN209606242U (en) | 2018-12-19 | 2018-12-19 | For small-angle neutron scattering experiment high temperature and stretch the device in situ for coupling and loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822140035.1U CN209606242U (en) | 2018-12-19 | 2018-12-19 | For small-angle neutron scattering experiment high temperature and stretch the device in situ for coupling and loading |
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| CN209606242U true CN209606242U (en) | 2019-11-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556970A (en) * | 2018-12-19 | 2019-04-02 | 中国原子能科学研究院 | A kind of device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load |
| CN110954569A (en) * | 2019-12-20 | 2020-04-03 | 中国原子能科学研究院 | Sample changing system for scattering experiment |
| CN111307572A (en) * | 2020-04-03 | 2020-06-19 | 中国工程物理研究院核物理与化学研究所 | Small-angle neutron scattering-based filled rubber structure network evolution determination method |
| CN111665273A (en) * | 2020-06-17 | 2020-09-15 | 中国科学院长春应用化学研究所 | High-low temperature environment box for combined use of testing machine and X-ray light source characterization |
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2018
- 2018-12-19 CN CN201822140035.1U patent/CN209606242U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556970A (en) * | 2018-12-19 | 2019-04-02 | 中国原子能科学研究院 | A kind of device in situ for small-angle neutron scattering experiment high temperature and stretching coupling load |
| CN110954569A (en) * | 2019-12-20 | 2020-04-03 | 中国原子能科学研究院 | Sample changing system for scattering experiment |
| CN111307572A (en) * | 2020-04-03 | 2020-06-19 | 中国工程物理研究院核物理与化学研究所 | Small-angle neutron scattering-based filled rubber structure network evolution determination method |
| CN111307572B (en) * | 2020-04-03 | 2022-10-28 | 中国工程物理研究院核物理与化学研究所 | Small-angle neutron scattering-based filled rubber structure network evolution determination method |
| CN111665273A (en) * | 2020-06-17 | 2020-09-15 | 中国科学院长春应用化学研究所 | High-low temperature environment box for combined use of testing machine and X-ray light source characterization |
| CN111665273B (en) * | 2020-06-17 | 2022-05-17 | 中国科学院长春应用化学研究所 | High-low temperature environment box for combined use of testing machine and X-ray light source characterization |
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