CN212459170U - Creep property testing device - Google Patents
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- CN212459170U CN212459170U CN202020509075.3U CN202020509075U CN212459170U CN 212459170 U CN212459170 U CN 212459170U CN 202020509075 U CN202020509075 U CN 202020509075U CN 212459170 U CN212459170 U CN 212459170U
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Abstract
The utility model relates to a creep property testing arrangement relates to mechanical properties of materials test technical field. The main technical scheme adopted is as follows: a creep performance testing device comprises a creep testing machine, a testing chamber and an environmental atmosphere input system. Wherein, the test chamber is installed on creep testing machine, and in the creep performance test process of sample, the sample is located the test chamber. The environment atmosphere input system is used for inputting specific atmosphere into the testing chamber, so that the internal environment of the testing chamber can simulate the service environment of the sample material. Wherein the ambient atmosphere input system comprises an atmosphere system and an ambient atmosphere mixer; the atmosphere system comprises one or more atmosphere units. The utility model discloses mainly used provides one kind can be under the service environmental condition of simulation the creep deformation capability test device of test material creep performance, for the performance optimization research of material provides more reliable test data with the design, for the application of material provides key basic data.
Description
Technical Field
The utility model relates to a mechanical properties of material tests technical field, especially relates to a creep property testing arrangement.
Background
Creep refers to the phenomenon that a material slowly generates plastic deformation under the action of constant temperature and load for a long time. The creep property of the material directly influences the service life of the material, so that the research on the creep property of the material (namely, the research on the change rule of the deformation of the material along with temperature, stress and time) has very important significance on the application of the material.
At present, the research on the creep performance of materials is mainly focused on the atmospheric environment. However, under the actual use conditions of the material, the environment has a large influence on the performance and service life of the material. For example, for parts in the fields of thermal power and nuclear power, the parts are often subjected to corrosive environments such as high-temperature water vapor in a pipeline and high-temperature flue gas outside the pipeline; for ships and shipboard aircraft to be in service in the marine environment for a long time, the used materials are in the corrosive marine atmospheric environment for a long time. The corrosive environment has a significant impact on the performance of the material, reducing the life of the material, reducing the reliability of the part, and increasing the likelihood of dangerous failure.
The existing creep performance testing device and method are almost all carried out under the conventional atmospheric condition, and the creep performance of the material under the conventional atmospheric condition cannot be accurately reflected by the creep performance test under the real service condition of the material.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a creep property testing device, main aim at can simulate the environment of being in service (for example, corrosive environment) of material, test the creep property of material under the environmental condition of being in service of simulation to for the performance optimization research and the design of material provide more reliable test data, provide key basic data for the application of material.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
an embodiment of the utility model provides a creep property testing device, wherein, creep property testing device includes:
a creep testing machine;
the testing chamber is arranged on the creep testing machine, and the test sample is positioned in the testing chamber in the process of testing the creep performance of the test sample;
the environment atmosphere input system is used for inputting specific atmosphere into the testing chamber so as to enable the internal environment of the testing chamber to simulate the service environment of the sample material;
wherein the ambient atmosphere input system comprises an atmosphere system and an ambient atmosphere mixer;
the atmosphere system comprises one or more atmosphere units; each atmosphere unit is provided with an atmosphere output pipe; the atmosphere output pipe is provided with a valve and a flowmeter, and the atmosphere output pipe of the atmosphere unit is communicated with the ambient atmosphere mixer through a first pipeline;
the environment atmosphere mixer is communicated with the testing chamber through a second pipeline, and a valve is arranged on the second pipeline;
and according to the service environment of the sample material, enabling the atmosphere system to input one or more atmospheres with set quantity into the environment atmosphere mixer so as to firstly form the specific atmosphere in the environment atmosphere mixer and then convey the specific atmosphere in the environment atmosphere mixer to the test chamber.
Preferably, the creep performance testing device further comprises a vacuum-pumping system; the vacuumizing system is used for vacuumizing the test chamber and the ambient atmosphere mixer.
Preferably, the vacuum pumping system comprises:
the vacuum pump is communicated with the testing chamber through a third pipeline;
the vacuum pump is connected with the exhaust treatment device and is used for pumping gas in the test chamber into the exhaust treatment device;
preferably, a vacuum-pumping valve and a vacuum gauge are mounted on the third pipeline.
Preferably, the atmosphere system comprises one or more of the following atmosphere units: water vapor generator, alkali lye evaporator, nitrogen gas storage device, inert gas storage device, hydrogen sulfide storage device, flue gas storage device, sulfur dioxide storage device, other gaseous storage device.
Preferably, the other gas storage means comprises a carbon monoxide gas storage means and/or a chlorine gas storage means.
Preferably, a valve is arranged on the first pipeline; and/or a flow meter and a pressure gauge are also arranged on the second pipeline.
Preferably, the creep performance testing device further comprises a heating and heat-preserving device; the heating and heat-preserving device is arranged in the test chamber and used for heating and preserving heat of the sample.
Preferably, the creep testing machine comprises an upper stretching rod and a lower stretching rod; wherein the content of the first and second substances,
the upper stretching rod and the lower stretching rod are respectively connected with the testing chamber through a dynamic sealing structure;
the lower end of the upper stretching rod is provided with a first clamping structure, and the upper end of the lower stretching rod is provided with a second clamping structure; the first clamping structure is used for clamping the upper end of the sample, and the second clamping structure is used for clamping the lower end of the sample.
Preferably, the creep testing machine comprises a two-channel deformation measurement recording system; and/or
The creep testing machine is an electronic creep testing machine or a mechanical lever weight type creep testing machine.
Compared with the prior art, the utility model discloses a creep property testing arrangement has following beneficial effect at least:
on one hand, the creep performance testing device provided by the embodiment of the utility model adds the testing chamber and the environment atmosphere input system on the existing creep testing machine; the environment atmosphere input system is used for inputting specific atmosphere into the test chamber (wherein the type and the amount of the input atmosphere are determined according to the simulated service environment), so that the internal environment of the test chamber can simulate the service environment of the sample material. Therefore, the creep performance testing device provided by the embodiment can simulate the service environment (such as a corrosion environment, an inert gas environment and the like) of the material, and test the creep performance of the material under the simulated service environment condition, so that more reliable test data is provided for the performance optimization research and design of the material, and key basic data is provided for the application of the material.
Further, the ambient input system of the embodiment is provided with an ambient system and an ambient mixer, so that when the test chamber simulates the service environment of the sample material: firstly, according to the actual use environment of the sample material, controlling valves and the opening degrees of the valves on atmosphere output pipes in one or more atmosphere units, enabling one or more atmospheres with set quantity to sequentially enter an environment atmosphere mixer, forming specific atmosphere in the environment atmosphere mixer, and then inputting the specific atmosphere into a test chamber through the environment atmosphere mixer. Through the arrangement, on one hand, when the specific atmosphere consists of a plurality of atmospheres, the environment atmosphere mixer can fully mix the plurality of atmospheres, so that the simulation effect of the simulated service environment of the test chamber is improved; on the other hand, the specific atmosphere is mixed by the environmental atmosphere mixer, and after the sample is installed on the creep testing machine, the specific atmosphere is directly input into the testing chamber by the environmental atmosphere mixer, so that the testing time can be saved, and the testing efficiency is improved (if the specific atmosphere is mixed by inputting multiple atmospheres into the testing chamber in sequence after the sample is installed, the time is long).
Furthermore, the creep performance testing device provided by the embodiment of the utility model is provided with a vacuum-pumping system to carry out vacuum-pumping treatment on the testing chamber and the environmental atmosphere mixer; according to the creep performance testing device provided by the embodiment of the utility model, on one hand, the creep test under the vacuum environment can be carried out on the sample, and the creep behavior and performance of the material under the vacuum environment can be tested, so as to carry out the basic research and analysis of the creep characteristic of the material; on the other hand, the internal environment of the test chamber is conveniently simulated into the service environment of the sample material (after the environmental atmosphere mixer is vacuumized, different atmospheres are introduced into the environmental atmosphere mixer, so that various atmospheres are promoted to be rapidly and fully mixed into specific atmosphere, and then the specific atmosphere is introduced into the vacuumized test chamber, so that the service environment of the sample can be simulated).
Further, the atmosphere system in the environment atmosphere input system of the embodiment of the present invention includes the following atmosphere units: water vapor generator, alkali lye evaporator, nitrogen gas storage device, inert gas storage device, hydrogen sulfide storage device, flue gas storage device, sulfur dioxide storage device, other gaseous storage device. Through the arrangement, the atmosphere system of the embodiment can input one atmosphere, such as inert gas, into the environment atmosphere mixer and the test chamber so as to perform a creep test under the atmosphere of the inert gas environment, test and research the creep behavior and performance of the material under the atmosphere of the inert gas environment, and perform basic research and analysis on the creep characteristic of the material. The atmosphere system of this embodiment setting can carry out the creep test under the multiple different corrosive environment atmosphere, (for example, can make the test chamber simulate the corrosive environment of multiple difference), and the creep behavior and the performance of test research material under the multiple different corrosive environment atmosphere carry out material creep characteristic foundation research and analysis.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a creep performance testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vacuum pumping system and a test chamber according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an ambient input system and a test chamber according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The conventional creep performance testing device and method are almost performed under the conventional atmospheric condition, and the creep performance of the material under the conventional atmospheric condition cannot be accurately reflected under the real service condition of the material. Based on this technical problem, the embodiment of the utility model provides a design a creep property testing arrangement and method, can simulate its service environment (for example, corrosive environment) of service condition according to the actual service environment of material, carry out creep property research and test analysis under its nearly service environment to for material performance optimization research and design provide more reliable test data, provide key basic data for the material is used.
Example 1
As shown in fig. 1, the creep performance testing apparatus of the present embodiment includes a creep testing machine 1, a testing chamber 3, and an ambient input system 6. Wherein, test chamber 3 is installed on creep testing machine 1, and in the creep performance test process of sample 2, sample 2 is located test chamber 3. The environmental atmosphere input system 6 is used for inputting a specific atmosphere into the testing chamber 3, so that the internal environment of the testing chamber 3 can simulate the service environment of the sample material.
In the creep performance testing device provided by the embodiment, the testing chamber 3 and the environmental atmosphere input system 6 are additionally arranged on the conventional creep testing machine 1; the environmental atmosphere input system 6 is configured to input a specific atmosphere (where the specific atmosphere is related to the service environment of the sample material, and different service environments, and the input specific atmosphere is different) into the testing chamber 3, so that the internal environment of the testing chamber 3 can simulate the service environment of the sample material. Therefore, the creep performance testing device provided by the embodiment can simulate the service environment (such as a corrosion environment, an inert gas environment and the like) of the material, and test the creep performance of the material under the simulated service environment condition, so that more reliable test data is provided for the performance optimization research and design of the material, and key basic data is provided for the application of the material.
Preferably, the test chamber 3 has a hinged chamber door.
As shown in fig. 1 and fig. 3, in order to make the testing chamber 3 simulate the service environment of the sample material, the present embodiment designs the environmental atmosphere input system 6 as follows:
the ambient atmosphere input system comprises an atmosphere system and an ambient atmosphere mixer 60. Wherein the atmosphere system comprises one or more atmosphere units; each atmosphere unit is provided with an atmosphere output pipe; and the atmosphere output pipe is provided with a valve and a flowmeter and is used for controlling whether the corresponding atmosphere unit outputs the atmosphere or not and the output flow of the atmosphere. The atmosphere output tube of the atmosphere unit communicates with the ambient atmosphere mixer 60 via a first line 607. The ambient mixer 60 communicates with the test chamber 3 via a second line 605, and a valve 602 is arranged on the second line 605. In which, according to the service environment of the sample material, the atmosphere system inputs one or more set amounts of atmospheres into the ambient atmosphere mixer 60 (here, the type and amount of the input atmospheres are specifically determined according to the simulated service environment), a specific atmosphere is first formed in the ambient atmosphere mixer 60, and then the specific atmosphere is directly delivered to the test chamber 3 by the ambient atmosphere mixer 60. Preferably, a valve 606 is disposed on the first pipeline 607. Preferably, a flow meter 603 and pressure gauges (including a first pressure gauge 601 between the ambient mixer 60 and the valve 602 and a second pressure gauge 604 between the test chamber 3 and the flow meter 603) are provided in the second line 605.
Here, the ambient input system of the present embodiment is configured by providing the ambient system and the ambient mixer 60, so that when the test chamber 3 simulates the service environment of the sample material: firstly, according to the actual use environment of the sample material, the valve and the opening degree of the valve on the atmosphere output pipe in one or more atmosphere units are controlled, so that one or more atmospheres with set quantity sequentially enter the environment atmosphere mixer 60, and after a specific atmosphere is formed in the environment atmosphere mixer 60, the specific atmosphere is input into the test chamber 3 by the environment atmosphere mixer 60. Through the arrangement, on one hand, when the specific atmosphere consists of a plurality of atmospheres, the environmental atmosphere mixer 60 can fully mix the plurality of atmospheres, so that the simulation effect of the simulated service environment of the test chamber is improved; on the other hand, after the sample 2 is installed on the creep testing machine 1, the environmental atmosphere mixer 60 is directly used to input the specific atmosphere into the testing chamber 3, so that the testing time can be saved, and the testing efficiency can be improved (if the specific atmosphere is mixed by sequentially inputting a plurality of atmospheres into the testing chamber after the sample is installed, the time is long).
Example 2
Preferably, the present embodiment provides a creep performance testing apparatus, compared with the previous embodiment, as shown in fig. 1 and fig. 2, the present embodiment is further designed as follows:
the creep performance testing device provided by the embodiment further comprises a vacuum pumping system 5; the vacuum-pumping system 5 is used for performing vacuum-pumping processing on the test chamber 3 and the ambient atmosphere mixer 60.
Here, the creep performance testing apparatus provided in this embodiment is provided with the vacuum pumping system 5 to perform vacuum pumping processing on the testing chamber 3 and the ambient atmosphere mixer 60; by means of the arrangement, on one hand, the creep performance testing device provided by the embodiment can perform a creep test on the sample 2 in a vacuum environment, and test the creep behavior and performance of the material in the vacuum environment so as to perform basic research and analysis on the creep characteristic of the material; on the other hand, the internal environments of the test chamber 3 and the environmental atmosphere mixer 60 are conveniently simulated into the service environment of the sample material, and only the test chamber needs to be vacuumized, and then specific atmosphere related to the service environment of the sample is introduced into the test chamber, so that the simulation accuracy can be improved (firstly, after the environmental atmosphere mixer 60 is vacuumized, different atmospheres are introduced into the environmental atmosphere mixer 60, so that various atmospheres are promoted to be rapidly and fully mixed into specific atmosphere, and then the specific atmosphere is introduced into the vacuumized test chamber 3, so that the service environment of the sample can be simulated).
Preferably, the vacuum pumping system 5 comprises: a vacuum pump 52 and an exhaust gas processing device 53; wherein the vacuum pump 52 is connected to the testing chamber 3 through the third pipeline 51 (since the testing chamber is connected to the ambient mixer 60 through the second pipeline 605, the vacuum pump 52 simultaneously evacuates the testing chamber 3 and the ambient mixer 60 by opening the valve 602 on the second pipeline 605). The vacuum pump 52 is connected to the exhaust gas processing device 53, and is configured to pump the gas in the test chamber 3 into the exhaust gas processing device 53. Wherein, the third pipeline 52 is provided with a vacuum-pumping valve 54, a vacuum gauge 55 and a vacuum gauge 56 (here, the vacuum gauge 55 and the vacuum gauge 56 are both used for measuring the vacuum degree, the vacuum gauge 56 is a needle type and relatively rough in measurement, and the vacuum gauge 55 is digital at present and is visual and has higher accuracy).
Example 3
Preferably, the present embodiment provides a creep performance testing apparatus, compared with the above embodiments, as shown in fig. 1 and 3, the present embodiment is further designed as follows:
the atmosphere systems in the ambient atmosphere input system 6 in this embodiment comprise one or more of the following atmosphere units: a water vapor generator 61 (i.e., a water vapor atmosphere unit), an alkali lye evaporator 62 (i.e., an alkaline vapor atmosphere unit), a nitrogen gas storage device 63 (i.e., a nitrogen atmosphere unit), an inert gas storage device 64 (i.e., an inert gas atmosphere unit, such as argon), a hydrogen gas storage device 65 (i.e., a hydrogen atmosphere unit), a hydrogen sulfide storage device 66 (i.e., a hydrogen sulfide atmosphere unit), a flue gas storage device 67 (a flue gas atmosphere unit), a sulfur dioxide storage device 68 (a sulfur dioxide atmosphere unit), and other gas storage devices 69.
Preferably, the atmosphere system in this embodiment includes all the atmosphere units described above, that is, includes: a water vapor generator 61, an alkali liquor evaporator 62, a nitrogen gas storage device 63, an inert gas storage device 64, a hydrogen gas storage device 65, a hydrogen sulfide storage device 66, a flue gas storage device 67, a sulfur dioxide storage device 68, and other gas storage devices 69.
Here, the atmosphere system of the present embodiment may input one of the atmospheres, such as inert gas, into the ambient atmosphere mixer 60 and the test chamber to perform a creep test under the inert gas ambient atmosphere, test and study the creep behavior and performance of the material under the inert gas ambient atmosphere, and perform basic study and analysis of the creep characteristics of the material. The atmosphere system of this embodiment setting can carry out the creep test under the multiple different corrosive environment atmosphere, (for example, can make test chamber 3 simulate the corrosive environment of multiple difference), and the creep behavior and the performance of test research material under the multiple different corrosive environment atmosphere carry out material creep characteristic foundation research and analysis.
Example 4
Preferably, compared with the above embodiments, as shown in fig. 1, the creep performance testing apparatus in this embodiment further includes a heating and holding apparatus 41 (e.g., a heating and holding furnace); wherein, the heating and heat-preserving device 41 is installed in the testing chamber 3 and used for heating and preserving heat of the sample. Correspondingly, the creep performance testing device in this embodiment is further provided with a heating and heat-preserving system 42; wherein, the heating and heat-preserving system 42 is connected with the heating and heat-preserving device 41 and is used for controlling the heating and heat-preserving device. The heating and heat-preserving system 41 mainly comprises a heating transformer, a temperature controller, a power controller and a temperature control and temperature measuring thermocouple.
The creep testing machine 1 of the present embodiment is an electronic creep testing machine or a mechanical lever weight type creep testing machine. The creep testing machine 1 comprises an upper stretching rod 11 and a lower stretching rod 12; the upper stretching rod 11 and the lower stretching rod 12 are respectively connected with the testing chamber 3 through a dynamic sealing structure (i.e., a first dynamic sealing structure 111 is arranged between the upper stretching rod 11 and the testing chamber 3, and a second dynamic sealing structure 121 is arranged between the lower stretching rod 12 and the testing chamber 3). The lower end of the upper stretching rod 11 is provided with a first clamping structure 112, and the upper end of the lower stretching rod 12 is provided with a second clamping structure 122; the first clamping structure 112 is used to clamp the upper end of the sample 2 and the second clamping structure 122 is used to clamp the lower end of the sample.
In addition, the creep testing machine includes a dual channel deformation measurement recording system 13. The sine wave signal recorded by the sample deformation measurement is connected to the two-channel deformation measurement recording system 13 outside the test chamber 3 through an interface (DB15 interface) on the flange.
Example 5
On the other hand, the present embodiment provides a creep performance testing method, which uses the above-mentioned creep performance testing apparatus to test the creep performance of a test sample under a simulated service environment condition.
Preferably, the creep performance testing method comprises the following steps: and (3) mounting a sample, simulating the service environment of a sample material, and testing the creep property. Preferably, before the step of simulating the service environment of the sample material, a step of vacuumizing is further included. The method comprises the following specific steps:
installing a sample: mounting the sample on a creep testing machine;
simulating the service environment of the sample material: according to the service environment of the sample material, enabling an atmosphere system to input one or more atmospheres with set quantity into the environment atmosphere mixer, firstly forming the specific atmosphere in the environment atmosphere mixer, and then conveying the specific atmosphere to the test chamber by the environment atmosphere mixer so as to enable the internal environment of the test chamber to simulate the service environment of the sample material;
testing creep property: and testing the creep property of the sample by using a creep testing machine.
Preferably, before the step of simulating the service environment of the sample material, the method further comprises a vacuum pumping treatment: and vacuumizing the test chamber and the ambient atmosphere mixer by using a vacuumizing system.
Preferably, in the step of simulating the service environment of the sample material: and inputting one or more corrosive atmospheres into the test chamber by the environment atmosphere input system so as to simulate a corrosive service environment in the internal environment of the test chamber.
Here, the testing steps of the creep performance testing method of the present embodiment are described as follows, taking a material with a service environment as a corrosive environment as an example: as shown in fig. 1 to 3, a specimen 2 is mounted on a creep testing machine 1, a two-channel deformation measurement recording system 13 is mounted, and a heating and heat-insulating system 42 is mounted. The test chamber 3 and the ambient atmosphere mixer 60 are evacuated using the evacuation system 5, and the evacuation valve 54 is closed. The atmosphere system in the controlled ambient atmosphere input system 6 inputs one or more atmospheres into the ambient atmosphere mixer 60 to create the corrosive ambient atmosphere required for the test in the ambient atmosphere mixer 60. The corrosive ambient atmosphere in the ambient atmosphere mixer 60 is input into the test chamber 3. Creep tests (heating, holding, loading, measuring, recording, etc.) were then carried out according to the relevant standards. The loading and unloading of the sample 2 are realized by an upper stretching rod 11 and a lower stretching rod 12. The cable of the heating and thermal insulating device 41 is flanged into the test chamber 3. The sine wave signal recorded by the sample deformation measurement is connected to a dual-channel deformation measurement recording system 13 outside the test chamber 3 through an interface on the flange.
To sum up, the embodiment of the utility model provides a creep property testing arrangement can simulate the service environment (for example, corrosive environment) of sample material, carries out creep property research and test analysis under its nearly service environment to for material performance optimization research and design provide more reliable test data, and provide key basic data for the material application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (9)
1. A creep performance testing apparatus, characterized by comprising:
a creep testing machine;
the testing chamber is arranged on the creep testing machine, and the test sample is positioned in the testing chamber in the process of testing the creep performance of the test sample;
the environment atmosphere input system is used for inputting specific atmosphere into the testing chamber so as to enable the internal environment of the testing chamber to simulate the service environment of the sample material;
wherein the ambient atmosphere input system comprises an atmosphere system and an ambient atmosphere mixer;
the atmosphere system comprises one or more atmosphere units; each atmosphere unit is provided with an atmosphere output pipe; the atmosphere output pipe is provided with a valve and a flowmeter, and the atmosphere output pipe of the atmosphere unit is communicated with the ambient atmosphere mixer through a first pipeline;
the environment atmosphere mixer is communicated with the testing chamber through a second pipeline, and a valve is arranged on the second pipeline.
2. The creep performance testing apparatus of claim 1, further comprising an evacuation system; wherein the content of the first and second substances,
and the vacuumizing system is used for vacuumizing the test chamber and the ambient atmosphere mixer.
3. The creep performance testing apparatus of claim 2, wherein the vacuum pumping system comprises:
the vacuum pump is communicated with the testing chamber through a third pipeline;
and the vacuum pump is connected with the exhaust treatment device and is used for pumping the gas in the test chamber into the exhaust treatment device.
4. The creep performance testing apparatus according to claim 3, wherein a vacuum valve and a vacuum gauge are installed on the third pipeline.
5. The creep performance testing apparatus of claim 1, wherein the atmosphere system comprises one or more of the following atmosphere units: the device comprises a water vapor generator, an alkali liquor evaporator, a nitrogen storage device, an inert gas storage device, a hydrogen sulfide storage device, a flue gas storage device, a sulfur dioxide storage device, a carbon monoxide gas storage device and a chlorine storage device.
6. The creep property testing apparatus according to any one of claims 1 to 5,
a valve is arranged on the first pipeline; and/or
And a flowmeter and a pressure gauge are also arranged on the second pipeline.
7. The creep performance testing apparatus according to any one of claims 1 to 5, further comprising a heating and holding apparatus; the heating and heat-preserving device is arranged in the test chamber and used for heating and preserving heat of the sample.
8. The creep performance testing apparatus according to any one of claims 1 to 5, wherein the creep testing machine includes an upper tensile bar and a lower tensile bar; wherein the content of the first and second substances,
the upper stretching rod and the lower stretching rod are respectively connected with the testing chamber through a dynamic sealing structure;
the lower end of the upper stretching rod is provided with a first clamping structure, and the upper end of the lower stretching rod is provided with a second clamping structure; the first clamping structure is used for clamping the upper end of the sample, and the second clamping structure is used for clamping the lower end of the sample.
9. The creep performance testing apparatus according to any one of claims 1 to 5, wherein the creep testing machine comprises a dual-channel deformation measurement recording system; and/or
The creep testing machine is an electronic creep testing machine or a mechanical lever weight type creep testing machine.
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| CN114136796A (en) * | 2021-11-22 | 2022-03-04 | 浙江工业大学 | High-temperature external-pressure creep buckling experiment platform and method for stainless steel container |
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| CN114136796A (en) * | 2021-11-22 | 2022-03-04 | 浙江工业大学 | High-temperature external-pressure creep buckling experiment platform and method for stainless steel container |
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