CN216208719U - Heat treatment simulation experiment device - Google Patents
Heat treatment simulation experiment device Download PDFInfo
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- CN216208719U CN216208719U CN202122616131.0U CN202122616131U CN216208719U CN 216208719 U CN216208719 U CN 216208719U CN 202122616131 U CN202122616131 U CN 202122616131U CN 216208719 U CN216208719 U CN 216208719U
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- simulation experiment
- heat treatment
- vacuum
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- treatment simulation
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 80
- 238000004088 simulation Methods 0.000 title claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 43
- 239000010439 graphite Substances 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 claims 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000006872 improvement Effects 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a heat treatment simulation experiment device, and belongs to the field of heat treatment simulation. The vacuum chamber is externally connected with a vacuumizing mechanism, a current heating mechanism and a graphite groove are installed in the vacuum chamber, the current heating mechanism is used for electrifying and heating the graphite groove, and a space for containing a sample is arranged in the graphite groove. The utility model can select a sample with larger size, is convenient for mechanical property detection operation, has uniform and consistent heating temperature for each position of the sample, has uniform mechanical property after heat treatment, and improves the accuracy of a simulation experiment.
Description
Technical Field
The utility model belongs to the field of heat treatment simulation, and particularly relates to a heat treatment simulation experiment device.
Background
The heat treatment simulator can simulate the heat treatment processing environment of materials and control the heat treatment temperature by matching with an intelligent temperature control regulating system so as to implement a specific heat treatment process on the sample, thereby improving the internal structure condition of the sample and improving the comprehensive performance of the sample.
At present, the heat treatment simulation test device adopted in scientific research mainly comprises the following components: (1) like model DIL805LThe rapid phase change instrument adopts a high-frequency induction coil heating mode, and a sample is arranged on the central line of a spiral coil, so that the rapid phase change instrument has the advantages that the sample can realize ultra-rapid heating and cooling speed, but the induction heating mode ensures that the standard sample is generally in the size of
When the induction heating temperature of a cylindrical plate-shaped sample is uneven and the thickness of the plate-shaped sample is less than 1mm, the induction heating mode is difficult to realize the heat treatment simulation requirement of a high-temperature area above 1000 ℃, and meanwhile, the smaller sample size cannot meet the subsequent mechanical property detection requirement. (2) High temperature Differential Scanning Calorimetry (DSC), which typically uses a platinum thermistor for heating and a platinum sensor for temperature measurement, together with a sweep gas and shielding gas, to detect phase changes in the endothermic and exothermic processes of a sample, is only suitable for small samples having a weight of about 20-70mg, and the maximum heating and cooling rates are typically less than 100K/min.
If the application number is as follows: CN 202107743U, name: the patent document discloses a Gleeble series thermal simulation test device, wherein a rectangular clamping groove is formed in the inner side of a wedge-shaped clamp, so that the problems that the length of a uniform temperature zone of a sample is short and the integral cooling of the sample is inconsistent are solved, however, the Gleeble series thermal simulation test device generally requires a rod-shaped sample with the sample length being more than 120mm, and the Gleeble series thermal simulation test device is not suitable for a plate-shaped sample and easily causes the central temperature of the sample to be higher than the temperature of the edge part in the heating process in the mode of fixing the clamping groove.
In summary, in the conventional heat treatment experimental apparatus, when in actual use, selecting a sample with a smaller size causes difficulty in operation of detecting mechanical properties of the sample, and when selecting a sample with a larger size, it is difficult to maintain uniform heating temperatures at various positions of the sample, which causes non-uniform mechanical properties of the sample, and thus the use effect is not ideal.
Disclosure of Invention
1. Problems to be solved
Aiming at the problem that the using effect of the existing heat treatment experiment device is not ideal, the utility model provides the heat treatment simulation experiment device, which can select a sample with a larger size, is convenient to detect and operate the mechanical property, is uniform in heating temperature of each position of the sample, is uniform in the mechanical property after heat treatment, and improves the accuracy of the simulation experiment.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A heat treatment simulation experiment device comprises a vacuum chamber, wherein a cooling mechanism is mounted at the upper part of the vacuum chamber, a vacuumizing mechanism is externally connected with the vacuum chamber, a current heating mechanism and a graphite groove are mounted in the vacuum chamber, the current heating mechanism is used for electrifying and heating the graphite groove, and a space for containing a sample is arranged in the graphite groove.
As a further improvement of the technical scheme, through holes penetrating through two opposite side surfaces of the graphite groove are formed in the graphite groove along the width direction of the graphite groove.
As the further improvement of the technical scheme, the graphite groove comprises an upper die and a lower die, the lower die is fixedly installed between the current heating mechanisms, the upper die covers the lower die, and a cavity for accommodating the sample is arranged between the upper die and the lower die.
As a further improvement of the technical scheme, a temperature measuring hole is formed in the graphite tank, a temperature measuring element is arranged in the temperature measuring hole and is electrically connected with a temperature controller, and the temperature controller is electrically connected with the current heating mechanism.
As a further improvement of the technical scheme, a strain gauge is attached to a sample in a graphite groove and is externally connected with a displacement sensor.
As a further improvement of the technical scheme, the vacuum pumping mechanism comprises a vacuum pump, the vacuum pump is communicated with a vacuum chamber through the vacuum pipe, and a vacuum valve is arranged on the vacuum pipe.
As a further improvement of the technical scheme, a vacuum meter is arranged on the vacuum tube.
As a further improvement of the technical scheme, the device also comprises a protective gas cylinder, wherein the protective gas cylinder is connected with the vacuum tube through a pipeline, and a valve is arranged on the pipeline.
As a further improvement of the technical scheme, a plurality of nozzles are arranged on the lower end surface of the cooling mechanism.
As a further improvement of the technical proposal, the upper side of the vacuum chamber is provided with an observation window.
3. Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) the heat treatment simulation experiment device is provided with the graphite groove and the current heating mechanism for electrifying and heating the graphite groove, and the sample is placed in the graphite groove and then the current heating mechanism is controlled to heat, so that the synchronous isothermal heating of each position of the sample can be realized, and even if a large-size sample convenient for subsequent detection is selected, the sample is uniformly heated at each position, so that the sample obtains uniform mechanical property after heat treatment, and the accuracy of a simulation experiment is improved;
(2) according to the heat treatment simulation experiment device, the temperature measuring element is arranged on the graphite groove, so that temperature change data in the heat treatment process can be detected and collected in real time, the accuracy of an analysis result of a simulation experiment is improved, meanwhile, the current heating mechanism can be adjusted according to the detected temperature, and the heating temperature is more accurately controlled;
(3) according to the heat treatment simulation experiment device, the strain gauge externally connected with the displacement sensor is attached to the sample in the graphite groove, so that the stress change data of the sample in the heat treatment process can be detected and collected in real time, and the accuracy of the analysis result of the simulation experiment is improved;
(4) according to the heat treatment simulation experiment device, the lower end face of the cooling mechanism is provided with the plurality of nozzles, so that the cooling mechanism can uniformly cool the sample, and the mechanical property uniformity of the sample after heat treatment is improved;
(5) according to the heat treatment simulation experiment device, the observation window is arranged on the upper side of the vacuum chamber, the condition in the vacuum chamber can be visually observed through the observation window, the simulation experiment process condition can be conveniently mastered, and the simulation experiment is controlled to be stably carried out according to the condition.
Drawings
FIG. 1 is a schematic structural diagram of an experimental apparatus;
in the figure: 1. a vacuum chamber; 2. a cooling mechanism; 3. a current heating mechanism; 4. a graphite groove; 5. a temperature measuring hole; 6. a temperature controller; 7. a strain gauge; 8. a displacement sensor; 9. a vacuum pump; 10. a vacuum valve; 11. a vacuum gauge; 12. a shielding gas cylinder; 13. a valve; 14. a nozzle; 15. and (4) an observation window.
Detailed Description
The utility model is further described with reference to specific embodiments and the accompanying drawings.
Examples
A heat treatment simulation experiment device is used for carrying out a heat treatment process simulation experiment on a sample to obtain a heat-treated sample with better comprehensive performance, and the specific structure and the working principle of the heat-treated sample are described in detail below.
As shown in fig. 1, the apparatus mainly includes a vacuum chamber 1, a cooling mechanism 2, a current heating mechanism 3, and a graphite bath 4. The vacuum chamber 1 is the main structure of the whole device, and is externally connected with a vacuum pumping mechanism and a protective gas supply mechanism. This is because the air pressure inside the vacuum chamber 1 needs to be pumped to a lower value before the experiment to reduce the influence of some elements in the air on the heat treatment process, which is 0.2Mpa in this embodiment. Meanwhile, the protective gas supply mechanism is opened during the experiment, inert gas is supplied to the vacuum chamber, and the influence on the experiment precision caused by the oxidation of the metal of the sample is prevented.
Specifically, the vacuum pumping mechanism comprises a vacuum pump 9, the vacuum pump 9 is communicated with the vacuum chamber 1 through the vacuum pipe, a vacuum valve 10 and a vacuum meter 11 are arranged on the vacuum pipe, and the pressure value in the vacuum chamber 1 can be detected in real time, so that the air pressure in the vacuum chamber 1 is accurately pumped to an accurate fixed value. The protective gas supply mechanism comprises a protective gas cylinder 12, the protective gas cylinder 12 is connected with a vacuum tube through a pipeline, a valve 13 is arranged on the pipeline, and the protective gas cylinder 12 is an argon gas cylinder in the embodiment.
After the vacuum pump 9 pumps the air pressure in the vacuum chamber 1 to a fixed value, the vacuum valve 10 is closed, then the valve 13 is opened, argon gas is introduced into the vacuum chamber 1, and then a heat treatment simulation experiment can be performed.
The cooling mechanism 2 is fixedly arranged at the upper part in the vacuum chamber 1, a cooling water source is connected outside the cooling mechanism 2, and a plurality of nozzles 14 are arranged at a cooling water outlet on the lower end surface of the cooling mechanism, so that the cooling mechanism 2 can uniformly complete the cooling of the sample, and the mechanical property uniformity of the sample after heat treatment is improved.
In the embodiment, the sample is placed in the graphite groove 4, and then the current heating mechanism 3 is controlled to heat, because the heat conducting property of the graphite is superior, and the temperature of each position of the graphite groove 4 is consistent, the synchronous isothermal heating of each position of the sample can be realized, and even if a large-size sample which is convenient for subsequent detection is selected, the heating of each position of the sample is uniform, so that the sample obtains uniform mechanical property after heat treatment, and the accuracy of a simulation experiment is improved.
In addition, in order to improve the comprehensiveness of data collection for the whole experimental process, the precision of the final analysis result is ensured. In the embodiment, the graphite bath 4 is provided with a temperature measuring hole 5, a temperature measuring element is arranged in the temperature measuring hole 5, the temperature measuring element is electrically connected with a temperature controller 6, and the temperature controller 6 is electrically connected with the current heating mechanism 3. Meanwhile, a strain gauge 7 is attached to the sample in the graphite groove 4, and a displacement sensor 8 is externally connected to the strain gauge 7. In this embodiment, the temperature measuring element is a thermocouple, and the thermocouple is inserted into the temperature measuring hole 5 when in use.
Through set up temperature element on graphite cuvette 4, can real-time detection and collect the temperature variation data among the heat treatment process, improve the precision of simulation experiment's analysis result, can adjust current heating mechanism 3 through temperature controller 6 according to the temperature that detects simultaneously, it is more accurate to heating temperature's control. And by attaching the strain gauge 7 externally connected with the displacement sensor 8 to the sample in the graphite groove 4, the stress change data of the sample in the heat treatment process can be detected and collected in real time, and the accuracy of the analysis result of the simulation experiment is further improved.
It should be mentioned that, in this embodiment, an observation window 15 is further installed on the upper side of the vacuum chamber 1, and the condition inside the vacuum chamber 1 can be visually observed through the observation window 15, so that the situation of the simulation experiment process can be conveniently mastered, and the simulation experiment can be stably controlled according to the situation.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (10)
1. The utility model provides a heat treatment simulation experiment device, includes vacuum chamber (1), cooling body (2) are equipped with to the upper portion of vacuum chamber (1), and vacuum chamber (1) is external to have the evacuation mechanism, its characterized in that: the device is characterized by further comprising a current heating mechanism (3) and a graphite groove (4) which are installed in the vacuum chamber (1), wherein the current heating mechanism (3) is used for electrifying and heating the graphite groove (4), and a space for accommodating a sample is arranged in the graphite groove (4).
2. A thermal treatment simulation experiment apparatus according to claim 1, wherein: and through holes penetrating through two opposite side surfaces of the graphite groove (4) are formed in the graphite groove along the width direction of the graphite groove.
3. A thermal treatment simulation experiment apparatus according to claim 1, wherein: graphite cuvette (4) is including last mould and lower mould, lower mould fixed mounting is between current heating mechanism (3), go up the mould lid and close on the lower mould, go up the mould and have the cavity that holds the sample between the lower mould.
4. A thermal treatment simulation experiment apparatus according to claim 1, wherein: the graphite bath (4) is provided with a temperature measuring hole (5), a temperature measuring element is arranged in the temperature measuring hole (5), the temperature measuring element is electrically connected with a temperature controller (6), and the temperature controller (6) is electrically connected with the current heating mechanism (3).
5. A thermal treatment simulation experiment apparatus according to claim 2, wherein: a strain gauge (7) is attached to a sample in the graphite groove (4), and a displacement sensor (8) is externally connected to the strain gauge (7).
6. A heat treatment simulation experiment apparatus according to any one of claims 1 to 5, wherein: the vacuum pumping mechanism comprises a vacuum pump (9), the vacuum pump (9) is communicated with the vacuum chamber (1) through a vacuum pipe, and a vacuum valve (10) is arranged on the vacuum pipe.
7. The heat treatment simulation experiment apparatus of claim 6, wherein: the vacuum tube is provided with a vacuum meter (11).
8. The thermal treatment simulation experiment apparatus of claim 7, wherein: the device is characterized by further comprising a protective gas bottle (12), wherein the protective gas bottle (12) is connected with a vacuum tube through a pipeline, and a valve (13) is arranged on the pipeline.
9. A heat treatment simulation experiment apparatus according to any one of claims 1 to 5, wherein: the lower end face of the cooling mechanism (2) is provided with a plurality of nozzles (14).
10. A heat treatment simulation experiment apparatus according to any one of claims 1 to 5, wherein: the upper side of the vacuum chamber (1) is provided with an observation window (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122616131.0U CN216208719U (en) | 2021-10-28 | 2021-10-28 | Heat treatment simulation experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122616131.0U CN216208719U (en) | 2021-10-28 | 2021-10-28 | Heat treatment simulation experiment device |
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| Publication Number | Publication Date |
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| CN216208719U true CN216208719U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122616131.0U Expired - Fee Related CN216208719U (en) | 2021-10-28 | 2021-10-28 | Heat treatment simulation experiment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296738A (en) * | 2023-05-17 | 2023-06-23 | 华北电力科学研究院有限责任公司 | Bolt thermal stress simulation experiment device and experiment method thereof |
-
2021
- 2021-10-28 CN CN202122616131.0U patent/CN216208719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296738A (en) * | 2023-05-17 | 2023-06-23 | 华北电力科学研究院有限责任公司 | Bolt thermal stress simulation experiment device and experiment method thereof |
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Granted publication date: 20220405 |
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