CN105388074A - In-situ temperature loading device for neutron diffraction - Google Patents
In-situ temperature loading device for neutron diffraction Download PDFInfo
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- CN105388074A CN105388074A CN201510872056.0A CN201510872056A CN105388074A CN 105388074 A CN105388074 A CN 105388074A CN 201510872056 A CN201510872056 A CN 201510872056A CN 105388074 A CN105388074 A CN 105388074A
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Abstract
The invention provides an in-situ temperature loading device for neutron diffraction. The device comprises a furnace body cavity, a base, an incidence window plate, an emergence window plate, a high-temperature extensometer, a support leg A window film, a support leg B window film, a left-side fixture, a right-side fixture, a left-side fixture gasket, a right-side fixture gasket, a left-side cooling water jacket, a right-side cooling water jacket and an upper cooling water jacket. The device is characterized in that a neutron incidence hole, a neutron emergence hole, two fixture holes and two extensometer measuring support leg insertion holes are formed in the furnace body cavity, so that measurement neutrons can pass through directly, and meanwhile sample deformation can be measured in real time. When the in-situ temperature loading device is applied to a neutron diffraction in-situ mechanics-temperature composite environment loading experiment conforming to the national high-temperature tensile test standard together with a neutron diffractometer and a neutron diffraction in-situ mechanics device, the acting mechanism of a temperature-mechanics composite condition on the internal microstructure of a sample material is facilitated.
Description
Technical field
The invention belongs to the environment loading technique field in neutron diffraction application, be specifically related to a kind of in-situ temperature charger for neutron diffraction.
Background technology
Neutron diffraction techniques has Non-Destructive Testing and deep penetration characteristic, can carry out internal microstructure and stress distribution is directly measured to the metal material of centimetre-sized.When studying temperature, the influencing mechanism of mechanics combinational environment to the internal microstructure of specimen material, in-situ temperature, mechanical loading unit need be utilized to carry out temperature, mechanical environment loading according to the national standard of high temperature tension test to sample, and the micromechanism of recycling Neutron diffractometer to sample interior is measured.At present, domestic neutron diffraction techniques is in the starting stage, and the design of in situ environment equipment is also less.Name is called the Chinese patent (patent No.: 201310032334) disclose a kind of in-situ stress for neutron diffraction-temperature charger of " a kind of in-situ stress for neutron diffraction techniques-temperature charger ", the not reserved extensometer usage space of high temperature furnace assembly in this device, and then cause and carry out in experimentation and cannot directly measure sample deformation quantity, the national standard of tensile test at high temperature can not be met.
Summary of the invention
Cause measuring process can not meet the deficiency of the national standard of tensile test at high temperature to overcome the fault of construction of device in prior art, the invention provides a kind of in-situ temperature charger of neutron diffraction, the in-situ mechanical charger conbined usage with outside can be realized, the deformation quantity of high-temperature extensometer to sample can be utilized directly to measure simultaneously.
Realize technical scheme of the present invention as follows
For an in-situ temperature charger for neutron diffraction, it is characterized in that: described device comprises body of heater cavity, base, entrance window oralia, exit window oralia, high-temperature extensometer, leg A fenestrated membrane, leg B fenestrated membrane, left side fixture, right side fixture, left side fixture packing ring, right side fixture packing ring, left side cooling jacket, right side cooling jacket, top cooling jacket; Described body of heater cavity is offered neutron entrance aperture, neutron perforation hole, two fixture holes, two extensometers measurement leg probe holes; Its annexation is, described body of heater cavity is fixed on base; Described entrance window oralia, exit window oralia, left side fixture packing ring, right side fixture packing ring, leg A fenestrated membrane, leg B fenestrated membrane utilize that screw covers the outside of the neutron entrance aperture of body of heater cavity successively, the outside of neutron perforation hole, the outside in the fixture hole in left side, the outside in the fixture hole on right side, left side extensometer measure the outside that leg probe hole is outside, right side extensometer measures leg probe hole; Described left side cooling jacket, right side cooling jacket are separately fixed on left side fixture, right side fixture, top cooling jacket is fixed on above body of heater cavity, the water inlet of left side cooling jacket utilizes rubber water pipe to be connected with the water delivering orifice of outside water supply pump, the water delivering orifice of left side cooling jacket utilizes rubber water pipe to be connected with the water inlet of right side cooling jacket, the water delivering orifice of right side cooling jacket utilizes rubber water pipe to be connected with the water inlet of top cooling jacket, and the water delivering orifice of top cooling jacket utilizes rubber water pipe to be connected with the water return outlet of outside water supply pump; One end of described left side fixture, one end of right side fixture utilize screw thread to be connected respectively on two loading ends of outside in-situ mechanical stretching device, and the other end of left side fixture, the other end of right side fixture are connected with sample; Described high-temperature extensometer is fixed on base, measures leg for its two and touches on sample; Described base is fixed on the base of outside mechanical loading unit.
The measurement leg of described high-temperature extensometer is the cylindrical rod of high-temperature ceramic materials, and contact sample end is edge of a knife shape, utilizes the fiber rope of band spring to be clamped on base.
It is rounded rectangle shape that the extensometer of described body of heater cavity measures leg probe hole, the diameter of fillet and the wide measure-alike of rectangle; The diameter dimension 2mm larger than fixture diameter dimension in the fixture hole of described body of heater cavity; The neutron entrance aperture of described body of heater cavity, neutron perforation hole, fixture hole, extensometer are measured leg probe hole outer rim and are all offered threaded hole.
Described body of heater inside cavity lays heater strip, and fills insulation fibre material.
Described entrance window oralia, exit window oralia adopt fine aluminium or fabricated from sapphire, and when neutron source is cold neutron, entrance window oralia, exit window oralia adopt sapphire material to make, and when neutron source is thermal neutron, entrance window oralia, exit window oralia adopt pure aluminum material.
Described leg A fenestrated membrane, leg B fenestrated membrane adopt tool rubber springy to make, and cross crotch opening is offered in center.
Described left side fixture, right side fixture are the right cylinder of nickel-base high-temperature alloy material, and the diameter dimension of left side fixture, right side fixture is four times of sample diameter size, offer and connect outside neutron diffraction in-situ mechanical charger and the internal thread of sample.
Described left side cooling jacket, right side cooling jacket, top cooling jacket are provided with pagoda joint, facilitate building and dismounting of rubber water pipe.
Described left side fixture packing ring, right side fixture packing ring are the circular thin slice of high-temperature ceramic fibre material, and internal diameter size is identical with fixture diameter dimension.
Feature of the present invention is that body of heater cavity adopts the structural design offering neutron entrance window, neutron exit window, and adopt fine aluminium or sapphire material as entrance window oralia, exit window oralia, device permission is measured, and neutron is substantially lossless to be passed through, simultaneously effective isolating exterior cold air.Body of heater cavity has been offered extensometer and has been measured leg probe hole, make in temperature and Mechanical loading process, allow high-temperature extensometer to measure sample deformation quantity information in real time, make measuring process meet the national standard of high temperature tension test, finally ensure that the reliability of measurement result; Leg A fenestrated membrane, leg B fenestrated membrane cover extensometer on body of heater outer cover and measure outside leg probe hole simultaneously, and select tool elastomeric material springy, design that cross crotch opening is offered in center, move freely when extensometer leg being entered smoothly and measures deformation quantity, stop extraneous air to enter, this design effectively prevent in the loading of extensometer and use procedure and causes interference problem to the homogeneity of Heating Zone Temperature simultaneously.The left side of body of heater cavity, right side, top are all provided with cooling jacket, avoid in-situ temperature charger and have an impact to the mechanical loading unit of outside and neutron spectrometer in temperature loading procedure or degree of impairment generation; Fixture adopts with the connection of sample and is threaded, and makes inboard wall of furnace body and sample can be as far as possible close, makes the general structure size of in-situ temperature charger smaller, is conducive to supporting the use of the mechanical loading unit of in-situ temperature charger and different size.
Useful benefit of the present invention is: a kind of in-situ temperature charger for neutron diffraction of the present invention, and described device offers neutron entrance window, neutron exit window, makes device in neutron diffraction experiment, can carry out In Situ Heating to sample; Described device offers fixture hole, extensometer measures leg probe hole, make device can with in-situ mechanical device with the use of, and the neutron diffraction in-situ mechanical-temperature combinational environment loading experiment of the national standard meeting high temperature tension test can be realized.
Accompanying drawing explanation
Fig. 1 is the front elevation of the in-situ temperature charger for neutron diffraction of the present invention;
Fig. 2 is the right view of the in-situ temperature charger for neutron diffraction of the present invention;
Fig. 3 is the front elevation of the structure of body of heater cavity in the present invention;
Fig. 4 is the right view of the structure of body of heater cavity in the present invention;
Fig. 5 be of the present invention in leg A fenestrated membrane, leg B fenestrated membrane structural representation;
In figure, 1. cooling jacket above cooling jacket 14. on the right side of cooling jacket 13. on the left of fixture packing ring 12. on the right side of fixture packing ring 11. on the left of fixture 10. on the right side of fixture 9. on the left of body of heater cavity 2. base 3. entrance window oralia 4. exit window oralia 5. high-temperature extensometer 6. leg A fenestrated membrane 7. leg B fenestrated membrane 8..
Embodiment
Below in conjunction with accompanying drawing, most preferred embodiment is described in detail.
Detailed content of the present invention and embodiment thereof is further illustrated below in conjunction with accompanying drawing.
Embodiment 1
Fig. 1 is the front elevation of the in-situ temperature charger for neutron diffraction of the present invention; Fig. 2 is the right view of the in-situ temperature charger for neutron diffraction of the present invention; Fig. 3 is the front elevation of the structure of body of heater cavity in the present invention; Fig. 4 is the right view of the structure of body of heater cavity in the present invention.In Fig. 1 to Fig. 5, a kind of in-situ temperature charger for neutron diffraction in the present invention comprises body of heater cavity 1, base 2, entrance window oralia 3, exit window oralia 4, high-temperature extensometer 5, leg A fenestrated membrane 6, leg B fenestrated membrane 7, left side fixture 8, right side fixture 9, left side fixture packing ring 10, right side fixture packing ring 11, left side cooling jacket 12, right side cooling jacket 13, top cooling jacket 14.Described body of heater cavity 1 is offered neutron entrance aperture, neutron perforation hole, two fixture holes, two extensometers measurement leg probe holes.
Described body of heater cavity 1 is fixed on base 2, described entrance window oralia 3, exit window oralia 4, left side fixture packing ring 10, right side fixture packing ring 11, leg A fenestrated membrane 6, leg B fenestrated membrane 7 utilize that screw covers the outside of the neutron entrance aperture of body of heater cavity 1 successively, the outside of neutron perforation hole, the outside in the fixture hole in left side, the outside in the fixture hole on right side, left side extensometer measure the outside that leg probe hole is outside, right side extensometer measures leg probe hole, described left side cooling jacket 12, right side cooling jacket 13 is separately fixed at left side fixture 8, on the fixture 9 of right side, top cooling jacket 14 is fixed on above body of heater cavity 1, the water inlet of left side cooling jacket 12 utilizes rubber water pipe to be connected with the water delivering orifice of outside water supply pump, the water delivering orifice of left side cooling jacket 12 utilizes rubber water pipe to be connected with the water inlet of right side cooling jacket 13, the water delivering orifice of right side cooling jacket 13 utilizes rubber water pipe to be connected with the water inlet of top cooling jacket 14, the water delivering orifice of top cooling jacket 14 utilizes rubber water pipe to be connected with the water return outlet of outside water supply pump, one end of described left side fixture 8, one end of right side fixture 9 utilize screw thread to be connected respectively on two loading ends of outside in-situ mechanical stretching device, and the other end of left side fixture 8, the other end of right side fixture 9 are connected with sample, described high-temperature extensometer 5 is fixed on base 2, measures leg for its two and touches on sample, described base 2 is fixed on the base of outside mechanical loading unit,
The measurement leg of described high-temperature extensometer 5 is the cylindrical rod of high-temperature ceramic materials, and contact sample end is edge of a knife shape, utilizes the fiber rope of band spring to be clamped on base 2;
It is rounded rectangle shape that the extensometer of described body of heater cavity 1 measures leg probe hole, the diameter of fillet and the wide measure-alike of rectangle; The diameter dimension 2mm larger than fixture diameter dimension in the fixture hole of described body of heater cavity 1; The neutron entrance aperture of described body of heater cavity 1, neutron perforation hole, fixture hole, extensometer are measured leg probe hole outer rim and are all offered threaded hole;
Described body of heater cavity 1 laid inside heater strip, and fill insulation fibre material;
Described entrance window oralia 3, exit window oralia 4 adopt fine aluminium or fabricated from sapphire, when neutron source is cold neutron, entrance window oralia 3, exit window oralia 4 adopt sapphire material to make, and when neutron source is thermal neutron, entrance window oralia 3, exit window oralia 4 adopt pure aluminum material;
Described leg A fenestrated membrane 6, leg B fenestrated membrane 7 adopt tool rubber springy to make, and cross crotch opening is offered in center;
Described left side fixture 8, right side fixture 9 are the right cylinder of nickel-base high-temperature alloy material, and the diameter dimension of left side fixture 8, right side fixture 9 is four times of sample diameter size, offer and connect outside neutron diffraction in-situ mechanical charger and the internal thread of sample;
Described left side cooling jacket 12, right side cooling jacket 13, top cooling jacket 14 are provided with pagoda joint, facilitate building and dismounting of rubber water pipe;
Described left side fixture packing ring 10, right side fixture packing ring 11 are the circular thin slice of high-temperature ceramic fibre material, and internal diameter size is identical with fixture diameter dimension;
Entrance window oralia 3 in the present embodiment, the material selection sapphire material of exit window oralia 4; The diameter of left side fixture 8, right side fixture 9 is 20mm, and the diameter that internal thread is offered in both sides is 10mm; The diameter in two fixture holes of body of heater cavity 1 is 22mm, and the internal diameter of body of heater cavity 1 is 25mm.
After above-mentioned enforcement, the present invention can be that the bar-shaped standard model of the micro metal of 5mm carries out temperature loading to diameter, together with the in-situ mechanical stretching device of outside, the neutron measurement experiment under neutron diffraction in-situ temperature-mechanics combinational environment can be carried out on cold neutron diffraction screen.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, and difference is the material selection fine aluminium material of entrance window oralia 3, exit window oralia 4, and the diameter of left side fixture 8, right side fixture 9 is 40mm, and the diameter that internal thread is offered in both sides is 20mm; The diameter in two fixture holes of body of heater cavity 1 is 42mm, and the internal diameter of body of heater cavity 1 is 45mm.
After above-mentioned enforcement, the present invention can be that the bar-shaped standard model of the relatively large metal of 10mm carries out temperature loading to diameter, together with the in-situ mechanical stretching device of outside, the neutron measurement experiment under neutron diffraction in-situ temperature-mechanics combinational environment can be carried out on thermal neutron diffraction screen.
Embodiment 3
The present embodiment is identical with the structure of embodiment 2, and difference is one end of described left side fixture 8, one end of right side fixture 9 utilizes screw thread to be connected respectively on outside fixed support, and the other end of left side fixture 8, the other end of right side fixture 9 are connected with sample.
After above-mentioned enforcement, the present invention can be that the bar-shaped standard model of the relatively large metal of 10mm carries out temperature loading to diameter, can carry out the neutron measurement experiment under neutron diffraction in-situ temperature environment on thermal neutron diffraction screen.
Claims (9)
1. for an in-situ temperature charger for neutron diffraction, it is characterized in that: described device comprises body of heater cavity (1), base (2), entrance window oralia (3), exit window oralia (4), high-temperature extensometer (5), leg A fenestrated membrane (6), leg B fenestrated membrane (7), left side fixture (8), right side fixture (9), left side fixture packing ring (10), right side fixture packing ring (11), left side cooling jacket (12), right side cooling jacket (13), top cooling jacket (14), described body of heater cavity (1) is offered neutron entrance aperture, neutron perforation hole, two fixture holes, two extensometers measurement leg probe holes, its annexation is, described body of heater cavity (1) is fixed on base (2), described entrance window oralia (3), exit window oralia (4), left side fixture packing ring (10), right side fixture packing ring (11), leg A fenestrated membrane (6), leg B fenestrated membrane (7) utilize that screw covers the outside of the neutron entrance aperture of body of heater cavity (1) successively, the outside of neutron perforation hole, the outside in the fixture hole in left side, the outside in the fixture hole on right side, left side extensometer measure the outside that leg probe hole is outside, right side extensometer measures leg probe hole, described left side cooling jacket (12), right side cooling jacket (13) is separately fixed at left side fixture (8), on right side fixture (9), top cooling jacket (14) is fixed on above body of heater cavity (1), the water inlet in left side cooling jacket (12) utilizes rubber water pipe to be connected with the water delivering orifice of outside water supply pump, the water delivering orifice in left side cooling jacket (12) utilizes rubber water pipe to be connected with the water inlet of right side cooling jacket (13), the water delivering orifice on right side cooling jacket (13) utilizes rubber water pipe to be connected with the water inlet of top cooling jacket (14), the water delivering orifice of top cooling jacket (14) utilizes rubber water pipe to be connected with the water return outlet of outside water supply pump, one end of described left side fixture (8), one end of right side fixture (9) utilize screw thread to be connected respectively on two loading ends of outside in-situ mechanical stretching device, and the other end of left side fixture (8), the other end of right side fixture (9) are connected with sample, described high-temperature extensometer (5) is fixed on base (2), measures leg for its two and touches on sample.
2. the in-situ temperature charger for neutron diffraction according to claim 1, it is characterized in that: the measurement leg of described high-temperature extensometer (5) is the cylindrical rod of high-temperature ceramic materials, contact sample end is edge of a knife shape, utilizes the fiber rope of band spring to be clamped on base (2).
3. the in-situ temperature charger for neutron diffraction according to claim 1, is characterized in that: it is round rectangle that the extensometer of described body of heater cavity (1) measures leg probe hole.
4. the in-situ temperature charger for neutron diffraction according to claim 1, is characterized in that: be provided with heater strip and insulation fibre material in described body of heater cavity (1).
5. the in-situ temperature charger for neutron diffraction according to claim 1, it is characterized in that: described entrance window oralia (3), exit window oralia (4) adopt fine aluminium or fabricated from sapphire, when neutron source is cold neutron, entrance window oralia (3), exit window oralia (4) adopt sapphire material to make, and when neutron source is thermal neutron, entrance window oralia (3), exit window oralia (4) adopt pure aluminum material.
6. the in-situ temperature charger for neutron diffraction according to claim 1, is characterized in that: described leg A fenestrated membrane (6), leg B fenestrated membrane (7) adopt rubber to make, and cross crotch opening is offered in center.
7. the in-situ temperature charger for neutron diffraction according to claim 1, it is characterized in that: described left side fixture (8), right side fixture (9) are respectively the right cylinder of nickel-base high-temperature alloy material, the diameter of left side fixture (8), right side fixture (9) is four times of sample diameter.
8. the in-situ temperature charger for neutron diffraction according to claim 1, it is characterized in that: (14) are provided with pagoda joint for described left side cooling jacket (12), right side cooling jacket (13), top cooling jacket, facilitate building and dismounting of rubber water pipe.
9. the in-situ temperature charger for neutron diffraction according to claim 1, is characterized in that: the circular thin slice that described left side fixture packing ring (10), right side fixture packing ring (11) are high-temperature ceramic fibre material.
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| CN106706443A (en) * | 2017-03-09 | 2017-05-24 | 中国工程物理研究院核物理与化学研究所 | In-situ heating device for neutron diffraction |
| CN106841254A (en) * | 2017-01-06 | 2017-06-13 | 中国工程物理研究院核物理与化学研究所 | A kind of temperature loading device for neutron scattering experiment |
| CN107063872A (en) * | 2017-06-02 | 2017-08-18 | 中国工程物理研究院核物理与化学研究所 | It is a kind of to be used for the room temperature mechanical loading unit of metallic beryllium in neutron scattering experiment |
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| CN107290221A (en) * | 2017-06-02 | 2017-10-24 | 中国工程物理研究院核物理与化学研究所 | HTHP loading device in situ neutron diffraction |
| CN108414552A (en) * | 2018-03-30 | 2018-08-17 | 中国工程物理研究院核物理与化学研究所 | A method of detection polymer bonding explosive thermal stability |
| CN112763341A (en) * | 2020-12-24 | 2021-05-07 | 中国工程物理研究院核物理与化学研究所 | In-situ induction heating device for neutron diffraction measurement |
| CN113218978A (en) * | 2021-05-10 | 2021-08-06 | 上海大学 | In-situ diffraction experiment method and device |
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| CN108414552B (en) * | 2018-03-30 | 2020-10-23 | 中国工程物理研究院核物理与化学研究所 | Method for detecting thermal stability of polymer bonded explosive |
| CN112763341A (en) * | 2020-12-24 | 2021-05-07 | 中国工程物理研究院核物理与化学研究所 | In-situ induction heating device for neutron diffraction measurement |
| CN113218978A (en) * | 2021-05-10 | 2021-08-06 | 上海大学 | In-situ diffraction experiment method and device |
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