CN109946324A - A kind of synchrotron radiation in situ imaging experiment coagulation system - Google Patents
A kind of synchrotron radiation in situ imaging experiment coagulation system Download PDFInfo
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- CN109946324A CN109946324A CN201910248594.0A CN201910248594A CN109946324A CN 109946324 A CN109946324 A CN 109946324A CN 201910248594 A CN201910248594 A CN 201910248594A CN 109946324 A CN109946324 A CN 109946324A
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Abstract
The invention discloses a kind of synchrotron radiation in situ imagings to test coagulation system, including heating furnace, the side wall of heating furnace is equipped with light inlet and light-emitting window, it is equipped with experiment chamber in heating furnace, light inlet and light-emitting window are located at same straight line and chamber is vertical communicates with experiment, and are equipped with light transmissive seal at light inlet and light-emitting window；It tests intracavitary temperature adjustment component, temperature sensing assembly and the sample of being equipped with and clamps adjusting component；Sample is located at sample clamping and adjusts on component, and the temperature of temperature sensing assembly test sample is simultaneously transferred in temperature control host computer, and temperature control host computer displays temperature simultaneously controls the temperature that temperature adjustment component adjusts sample, is equipped with air inlet and air outlet in experiment bottom of chamber portion.Microstructure Evolution process success rate is surrounded and watched the invention enables synchrotron radiation in-situ observation alloy to be substantially improved.
Description
Technical field
The invention belongs to experimental teaching equipment technical fields, and in particular to a kind of synchrotron radiation in situ imaging experiment solidification dress
It sets.
Background technique
Solidification features are the bridges for connecting alloying component and performance, accurate understanding and assurance alloy graining microstructure
Formation mechenism, leading factor and controlling soil moist, be conducive to accurately control and designing material institutional framework to improve the comprehensive of material
Performance is closed, there is important Engineering Guidance meaning to the promotion of alloy property.Due to the opacity of Solidification Structure, micro-nano
Rice property and solidification occur often in hot environment, traditional characterization technique entire process of setting can not be carried out dynamic, it is complete,
Observation in real time.But the appearance of synchrotron radiation in situ imaging technology, so that the dynamic evolution of home position observation metal freezing becomes
It may.But synchrotron radiation in-situ observation process is related to the real-time fusing and solidification of alloy, in most experimentation due to sealing
Deficiency leads to problems such as sample surround and watch microstructure Evolution in heating process generation oxidation and the inaccurate alloy that seriously affects of temperature control
Observation.
Summary of the invention
For above-mentioned deficiency described in the prior, the present invention provides a kind of synchrotron radiation in situ imaging experiment solidification dress
It sets, safety is higher compared with prior art, and temperature control is more accurate, and sealing effect is more preferable, and synchrotron radiation observation effect is more preferable.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows:
A kind of synchrotron radiation in situ imaging experiment coagulation system, including heating furnace, the side wall of heating furnace are equipped with light inlet and go out
Optical port, is equipped with experiment chamber in heating furnace, light inlet and light-emitting window be located at same straight line and with test that chamber is vertical to be communicated, and
Light transmissive seal is equipped at light inlet and light-emitting window；Intracavitary temperature adjustment component, temperature sensing assembly and the sample of being equipped with is tested to clamp
Adjust component；Sample is located at sample clamping and adjusts on component, and the temperature of temperature sensing assembly test sample is simultaneously transferred in temperature control
In the machine of position, temperature control host computer displays temperature simultaneously controls the temperature that temperature adjustment component adjusts sample, is equipped with air inlet in experiment bottom of chamber portion
The gas outlet and.
Furnace body temperature is equipped with refractory layer to external diffusion, the heating furnace inner wall in order to prevent, and refractory layer prevents from testing intracavitary
Temperature is excessive, it is possible to reduce touching bring high temperature scald and other objects are to damage of the invention.
Specifically, the temperature adjustment component, including water cooled pipeline and U-shaped heater strip；Water cooled pipeline and U-shaped heater strip ring are located at
Cavity wall is tested, and the water inlet of water cooled pipeline is connect with water inlet pipe, the water outlet of water cooled pipeline is connect with outlet pipe, water inlet pipe
The bottom of experiment chamber is located at outlet pipe and exposes the bottom of experiment chamber.Water inlet pipe, water cooled pipeline and outlet pipe cooperate real
Now to the cooling of experiment chamber；U-shaped heater strip is to make sample melting to give experiment chamber heating, is arranged to U-shaped also for avoiding
Influence X-ray.
The sample clamping adjusts component, including sample stage, specimen holder, elevating lever and lifting platform；Sample stage is equipped with sample
Product folder, sample are positioned on sample stage vertically by specimen holder, and sample stage is connect with elevating lever, after elevating lever is pierced by downwards experiment chamber
It is connect with lifting platform.The fine motion up and down of lifting platform changes position of the sample in experiment chamber, that is, changes X-ray and penetrate sample
The position of product makes observed result reach best.
The temperature sensing assembly, including thermocouple, thermocouple are attached on sample, can uniformly be divided in sample circumference
Cloth improves accuracy in detection.
And for the ease of carrying out sample replacement, heating furnace top is hinged with sealing cover, and sealing cover is opened chamber top is tested
Mouth closing.
In order to stablize heating furnace, the furnace body of the heating furnace is connect with support frame.
A kind of application method of synchrotron radiation in situ imaging experiment coagulation system, steps are as follows:
S1 opens sealing cover, sample is folded on sample stage with specimen holder, and uniformly attach thermocouple on sample, and will
Thermocouple is connect with temperature control host computer；
S2 shuts sealing cover, and vacuumizes to experiment chamber；
S3 pours inert gas from air inlet to experiment is intracavitary；
S4 is adjusted the height of sample stage by lifting platform, and X-ray is injected experiment chamber from light inlet and penetrates sample from light out
Mouth projects；
S5 heats up to sample by heating U-shaped heater strip, is passed through circulating chilled water by water cooled pipeline and cools down, pass through
Thermocouple connect with temperature control host computer and measures sample temperature.
Significant advantage is the present invention compared with prior art: the first, being provided with refractory layer, realization is heat-insulated, for behaviour
Touching bring high temperature scald and other objects can be reduced for workmanship to damage of the invention；The second, the present invention is testing
Intracavitary portion is equipped with internal heater strip, thermocouple and circulating water cooling system, convenient for operating to sample melting and setting temperature accurate
It controls；Reach the control of sample temperature gradient by the rise and fall of control water inlet, water yield size and U-shaped heater strip temperature
System；Third, the present invention are equipped with air inlet pipe, escape pipe, and inert gas can be filled, and prevent sample from aoxidizing in heating process.The present invention
It is substantially improved so that synchrotron radiation in-situ observation alloy surrounds and watches microstructure Evolution process success rate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
A kind of synchrotron radiation in situ imaging experiment coagulation system, as shown in Figure 1, include heating furnace 1, and in order to stablize heating
The furnace body of furnace, the heating furnace 1 is connect with support frame 19.
The side wall of heating furnace 1 is equipped with light inlet 2 and light-emitting window 3, and experiment chamber 4,2 He of light inlet are equipped in heating furnace 1
Light-emitting window 3 is located at same straight line and chamber 4 is vertical communicates with experiment, and light transmission sealing is equipped at light inlet 2 and light-emitting window 3
Part；It tests and is equipped with temperature adjustment component, temperature sensing assembly and sample clamping adjusting component in chamber 4；Sample is located at sample clamping and adjusts
On component, the temperature of temperature sensing assembly test sample is simultaneously transferred in temperature control host computer 20, and temperature control host computer displays temperature is simultaneously
The temperature that temperature adjustment component adjusts sample, the temperature sensing assembly, including thermocouple, thermocouple is controlled to be attached on sample, it can
To be uniformly distributed in sample circumference, accuracy in detection is improved.Air inlet 17 and gas outlet 18, inertia are equipped in experiment 4 bottom of chamber
Gas enters that experiment is intracavitary to be prevented sample and be oxidized in experimentation from air inlet.
Furnace body temperature is equipped with refractory layer 16 to external diffusion, 1 inner wall of heating furnace in order to prevent, and refractory layer 16 prevents from testing
Cavity temperature is excessive, it is possible to reduce touching bring high temperature scald and other objects are to damage of the invention.
Specifically, the temperature adjustment component, including water cooled pipeline 5 and U-shaped heater strip 6；6 ring of water cooled pipeline 5 and U-shaped heater strip
It is located at experiment 4 inner wall of chamber, and the water inlet of water cooled pipeline 5 is connect with water inlet pipe 7, the water outlet and outlet pipe 8 of water cooled pipeline 5 connect
It connects, water inlet pipe 7 and outlet pipe 8 are located at the bottom of experiment chamber 4 and expose the bottom of experiment chamber 4.
In the present embodiment, the water cooled pipeline 5, including left pipeline and right pipeline, the connector I and right pipeline of left pipeline
Connector II by connecting tube connect, by left and right sides water pipe formed a negotiable circulating water cooling system；And left pipeline
Water inlet connect with water inlet pipe 7, the water outlet of right pipeline is connect with outlet pipe 8；Water inlet pipe, water cooled pipeline and outlet pipe are mutual
The cooling to experiment chamber is realized in cooperation.U-shaped heater strip is to make sample melting, being arranged to U-shaped is also to give experiment chamber heating
In order to avoid influencing X-ray.
The sample clamping adjusts component, including sample stage 11, specimen holder 12, elevating lever 14 and lifting platform 15；Sample stage
11 are equipped with specimen holder 12, and sample 13 is positioned on sample stage 11 vertically by specimen holder 12, and sample stage 11 is connect with elevating lever 14,
Elevating lever 14 is connect after being pierced by experiment chamber 4 downwards with lifting platform 15.The fine motion up and down of lifting platform changes sample in experiment chamber
Position, that is, change the position that X-ray penetrates sample, so that observed result is reached best.
And for the ease of carrying out sample replacement, 1 top of heating furnace is hinged with sealing cover 9, and sealing cover 9 will test on chamber 4
Portion's closure of openings.
Embodiment 2: a kind of application method of synchrotron radiation in situ imaging experiment coagulation system, steps are as follows:
S1 opens sealing cover, the specimen holder 12 of sample 13 is folded on sample stage 11, and uniformly attach thermoelectricity on sample 13
It is even, and thermocouple is connect with temperature control host computer 20；
S2 shuts sealing cover, and vacuumizes to experiment chamber 4；
S3 pours inert gas into experiment chamber 4 from air inlet 17；
S4 adjusts the height of sample stage by lifting platform, and X-ray is injected experiment chamber 4 from light inlet 2 and penetrates sample from out
Optical port 3 projects；
S5 heats up to sample 13 by heating U-shaped heater strip 6, is passed through circulating chilled water by water cooled pipeline 5 and cools down,
It is connect by thermocouple 10 with temperature control host computer 20 and measures sample temperature.
Claims (8)
1. a kind of synchrotron radiation in situ imaging tests coagulation system, including heating furnace (1), it is characterised in that: the side of heating furnace (1)
Wall is equipped with light inlet (2) and light-emitting window (3), and experiment chamber (4), light inlet (2) and light-emitting window (3) are equipped in heating furnace (1)
Positioned at same straight line and chamber (4) are vertical communicates with experiment, and are equipped with light transmission at light inlet (2) and light-emitting window (3) and seal
Part；It tests and is equipped with temperature adjustment component, temperature sensing assembly and sample clamping adjusting component in chamber (4)；Sample is located at sample clamping and adjusts
It saves on component, the temperature of temperature sensing assembly test sample is simultaneously transferred in temperature control host computer (20), temperature control host computer display temperature
The temperature that temperature adjustment component adjusts sample is spent and controlled, is equipped with air inlet (17) and gas outlet (18) in experiment chamber (4) bottom.
2. synchrotron radiation in situ imaging according to claim 1 tests coagulation system, it is characterised in that: the heating furnace
(1) inner wall is equipped with refractory layer (16).
3. synchrotron radiation in situ imaging according to claim 1 or 2 tests coagulation system, it is characterised in that: the temperature adjustment
Component, including water cooled pipeline (5) and U-shaped heater strip (6)；Water cooled pipeline (5) and U-shaped heater strip (6) ring are located in experiment chamber (4)
Wall, and the water inlet of water cooled pipeline (5) is connect with water inlet pipe (7), the water outlet of water cooled pipeline (5) is connect with outlet pipe (8), into
Water pipe (7) and outlet pipe (8) are located at the bottom of experiment chamber (4) and expose the bottom of experiment chamber (4).
4. synchrotron radiation in situ imaging according to claim 3 tests coagulation system, it is characterised in that: the sample clamping
Adjust component, including sample stage (11), specimen holder (12), elevating lever (14) and lifting platform (15)；Sample stage (11) is equipped with sample
Product press from both sides (12), and sample (13) is positioned on sample stage (11) vertically by specimen holder (12), and sample stage (11) and elevating lever (14) are even
It connects, elevating lever (14) is pierced by downwards experiment chamber (4) and connect afterwards with lifting platform (15).
5. synchrotron radiation in situ imaging according to claim 4 tests coagulation system, it is characterised in that: the temperature detection
Component, including thermocouple (10), thermocouple (10) are attached on sample.
6. synchrotron radiation in situ imaging according to claim 4 tests coagulation system, it is characterised in that: on heating furnace (1)
Portion is hinged with sealing cover (9), and sealing cover (9) will test the closing of chamber (4) upper opening.
7. synchrotron radiation in situ imaging according to claim 4 tests coagulation system, it is characterised in that: the heating furnace
(1) furnace body is connect with support frame (19).
8. a kind of application method of synchrotron radiation in situ imaging experiment coagulation system according to claim 4, feature exist
In steps are as follows:
S1 is opened sealing cover (9), sample (13) is folded on sample stage (11) with specimen holder (12), and on sample (13)
Thermocouple (10) uniformly are attached, and thermocouple (10) is connect with temperature control host computer (20)；
S2 is shut sealing cover (9), and is vacuumized to experiment chamber (4)；
S3 pours inert gas into experiment chamber (4) from air inlet (17)；
S4 is adjusted the height of sample stage by lifting platform (15), and X-ray is injected experiment chamber (4) from light inlet (2) and is penetrated
Sample is projected from light-emitting window (3)；
S5 heats up to sample (13) by heating U-shaped heater strip (6), is passed through circulating chilled water by water cooled pipeline (5) and carries out
Cooling, is connect with temperature control host computer (20) by thermocouple (10) and measures sample temperature.
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Cited By (5)
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| CN112229866A (en) * | 2020-10-09 | 2021-01-15 | 大连理工大学 | Peripheral system suitable for in-situ observation of metal solidification under synchrotron radiation |
| CN112710681A (en) * | 2020-12-21 | 2021-04-27 | 中南大学 | Experimental device for solidification behavior is observed to normal position |
| CN112710680A (en) * | 2020-12-21 | 2021-04-27 | 中南大学 | Experimental method for in-situ observation of solidification behavior |
| CN114047207A (en) * | 2021-10-26 | 2022-02-15 | 中山大学 | Device for in-situ research of laser cladding process |
| CN114534819A (en) * | 2022-03-01 | 2022-05-27 | 合肥工业大学 | Atmosphere-controllable heat treatment equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114534819A (en) * | 2022-03-01 | 2022-05-27 | 合肥工业大学 | Atmosphere-controllable heat treatment equipment |
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| CN109946324B (en) | 2020-04-17 |
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