A high temperature resistant flexible material performance test device

Abstract

The utility model provides a kind of high-temperature-resistant flexible material performance test device, the device includes support frame, test component, burn hot flow component and pressure simulation component, test component is installed on support frame, burn hot flow component is connected in support frame below test component;Test component includes test piece mounting plate and high-temperature-resistant flexible material installed in test piece mounting plate, test piece mounting plate is connected on first support beam and can be moved to set position along first support beam;Burn hot flow component is connected on first support beam, and it is aligned high-temperature-resistant flexible material in test process;Pressure simulation component is arranged above high-temperature-resistant flexible material and can contact or separate with high-temperature-resistant flexible material.In high-temperature-resistant flexible material performance test device, through burn hot flow component and pressure simulation component, the simulation of heat / environment of force that high-temperature-resistant flexible material bears is realized simultaneously, so as to be able to simultaneously examine the heat insulation performance, bearing capacity and anti-scour performance of flexible heat-proof skirt.

Description

Technical Field

[0001] This utility model relates to the field of launch vehicles, specifically to a high-temperature resistant flexible material performance testing device. Background Technology

[0002] With the rapid development of aerospace technology and the improvement of rocket carrying capacity, the thrust of the first-stage engine has increased, while the thermal environment of the heat shield at the tail of the first stage has become increasingly harsh. This places new and higher demands on the heat shield and brings new challenges to the ground testing equipment for heat shields. Testing the heat shield includes testing the erosion resistance of the heat shield test piece, which requires a continuous, smooth, and prolonged heating of the heat shield test piece with a high-density heat flow to simulate the thermal environment that the heat shield is subjected to.

[0003] In existing technologies, the heat flux loading limit for testing heat shield skirts is only a few hundred kilowatts per square meter. This cannot provide a high-density heat flux that can be continuously and smoothly applied over a long period to assess the erosion resistance of the heat shield skirt test piece. Furthermore, it is difficult to create a jet thermal environment that changes over time to adapt to the constantly changing thermal environment of the heat shield skirt during rocket flight. After rocket ignition and launch, the pressure inside the tail section and the external environment changes continuously with increasing altitude. The first-stage tail heat shield skirt is continuously affected by the large changes in internal pressure. Under this internal pressure, the ablation process of the heat shield skirt becomes more complex, and there is currently no device in the technology that can simultaneously perform heating and pressure testing. Utility Model Content

[0004] This utility model provides a high-temperature resistant flexible material performance testing device, which can solve the technical problem in the prior art that "there is no device that can simultaneously perform heating and pressure testing".

[0005] To achieve the above objectives, this utility model provides a high-temperature resistant flexible material performance testing device, including a support frame, a test component, a scorching heat flow component, and a pressure simulation component. The test component is mounted on the support frame, and the scorching heat flow component is located below the test component and connected to the support frame.

[0006] The support frame includes support beams;

[0007] The test assembly includes a high-temperature resistant flexible material and a specimen mounting plate. The high-temperature resistant flexible material is installed inside the specimen mounting plate, which is connected to the first support beam and can move along the first support beam to a set position.

[0008] The scorching heat flow assembly is connected to the first support beam and aligned with the high-temperature resistant flexible material during the test;

[0009] The pressure simulation component is mounted on the support frame and positioned above the high-temperature resistant flexible material, allowing it to contact or detach from the material.

[0010] The above technical solution has the following beneficial effects: The high-temperature resistant flexible material performance testing device proposed in this utility model includes a calcination heat flow component and a pressure simulation component. The calcination heat flow component uses a high-density heat flow to continuously and smoothly heat the high-temperature resistant flexible material for a long time. The pressure simulation component applies pressure to the test component to simulate the internal pressure borne by the flexible heat protection skirt. This allows for the simultaneous simulation of the thermal / mechanical environment borne by the flexible heat protection skirt through the calcination heat flow component and the pressure simulation component. This makes the test highly reliable, the test heat flow value can be fully covered, and the test conditions are closer to the real flight environment of the flexible heat protection skirt. Thus, it is possible to simultaneously evaluate the heat insulation performance, load-bearing performance, and erosion resistance performance of the high-temperature resistant flexible material (i.e., the flexible heat protection skirt). Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is an isometric view of a high-temperature resistant flexible material performance testing device according to an embodiment of this utility model;

[0013] Figure 2 yes Figure 1 The corresponding front view;

[0014] Figure 3 yes Figure 2 The corresponding top view;

[0015] Figure 4 This is a schematic diagram of the internal pressure calibration principle of the pressure simulation component according to an embodiment of this utility model.

[0016] The reference numerals in the attached figures are as follows:

[0017] 1. Test assembly; 2. Support frame; 3. Heat flux calcination assembly; 4. Pressure simulation assembly; 5. Moving assembly; 6. Auxiliary assembly;

[0018] 11. High-temperature resistant flexible material; 12. Specimen mounting plate; 13. Annular specimen clamping strip;

[0019] 21. Support beam; 22. Support base;

[0020] 31. Multi-heat source combination equipment; 32. Oxyacetylene mounting beam; 33. Rotating fixed beam; 34. Fixed interface;

[0021] 41. Pressure actuator; 42. Internal pressure control end; 43. Lever; 44. Support plate;

[0022] 51. Lead screw; 52. First connecting piece; 53. Height adjustment handle;

[0023] 61. Sleeve; 62. Second connecting piece. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, in conjunction with the embodiments of the present invention, a high-temperature resistant flexible material performance testing device is provided, including a support frame 2, a test component 1, a scorching heat flow component 3 and a pressure simulation component 4. The test component 1 is installed on the support frame 2, and the scorching heat flow component 3 is located below the test component 1 and connected to the support frame 2.

[0026] The support frame 2 includes vertically arranged support beams 21; the support frame 2 provides fixed support for each functional component in the present invention embodiment, and plays the role of load-bearing support, thereby maintaining the overall stability of the high-temperature resistant flexible material performance testing device; preferably, all support beams 21 are placed on the support base 22.

[0027] The test component 1 includes a high-temperature resistant flexible material 11 and a specimen mounting plate 12. The high-temperature resistant flexible material 11 is tightly installed inside the specimen mounting plate 12. The specimen mounting plate 12 is connected to the first support beam 21 and can move along the first support beam 21 to a set position. The high-temperature resistant flexible material 11 is the test component.

[0028] The scorching heat flow assembly 3 is connected to the first support beam 21 and is located below the high-temperature resistant flexible material 11 during the test.

[0029] During the test of the flexible heat-resistant skirt, the test component 1 is placed at the initial height; the multi-heat source combination device 31 is turned on, and the flame of the multi-heat source combination device 31 is directed at the high-temperature resistant flexible material 11, which is the material used to make the flexible heat-resistant skirt.

[0030] Based on the relationship between the distance between the high-temperature resistant flexible material 11 and the multi-heat source combination device 31 and the magnitude of the heat flow generated by the flame, the specimen mounting plate 12 is moved downward along the first support beam 21, and the high-temperature resistant flexible material 11 is moved to the required set position in sequence. The heat flow changes from small to large to simulate the heat environment of the high-temperature resistant material under the pressure of the jet flow from the engine nozzle.

[0031] The internal pressure borne by the flexible heat-resistant skirt is simulated by applying pressure to the high-temperature resistant flexible material 11 using the pressure simulation component 4.

[0032] The thermal / mechanical environment experienced by the flexible heat shield skirt was simulated by the scorching heat flow component 3 and the pressure simulation component 4, which made the test highly reliable, the test heat flow value fully covered, and the test conditions closer to the real flight environment of the flexible heat shield skirt. Thus, the heat insulation performance, load-bearing performance and erosion resistance of the flexible heat shield skirt can be evaluated at the same time.

[0033] The multi-heat source combination device 31 of this utility model embodiment can achieve 0-3 Mw / m 2 A suitable heating environment and a scouring environment formed by the flame airflow on the surface of the scorched high-temperature resistant flexible material 11 enable continuous, smooth, and long-term heating of the high-temperature resistant flexible material 11 using a high-density heat flow. By shortening the distance between the high-temperature resistant flexible material 11 and the multi-heat source combination device 31, the heat flow density increases, which can simulate the scouring scenario of the high-temperature resistant flexible material 11. Therefore, the test and evaluation of the scouring performance and the heat insulation performance of the flexible heat-resistant skirt are realized.

[0034] This means that by using a heat flux scorching component and a pressure simulation component, the thermal / mechanical environment experienced by the flexible heat shield can be simulated simultaneously. This makes the test highly reliable, the test heat flux values ​​can be fully covered, and the test conditions are closer to the real flight environment of the flexible heat shield. Thus, the heat insulation performance, load-bearing performance and erosion resistance of the flexible heat shield can be evaluated at the same time.

[0035] Preferably, such as Figure 1 , Figure 2 and Figure 3 As shown, the high-temperature resistant flexible material performance testing device also includes a moving component 5 for moving the test component 1 to a set position on the support beam 21. The moving component 5 includes a lead screw 51 and a first connector 52. The lead screw 51 is vertically arranged and connected to the first support beam 21. The first end of the first connector 52 is connected to the lead screw 51 through its own internal thread, and the second end of the first connector 52 is fastened to the edge of the specimen mounting plate 12.

[0036] The moving component 5 also includes a height adjustment handle 53, which is connected to the end of the lead screw 51.

[0037] As the specimen mounting plate 12 moves downward along the first support beam 21, the height adjustment handle 53 causes the lead screw 51 to rotate, generating linear displacement and driving the first connecting member 52 downward. During this downward movement, the entire test assembly 1 moves downward. This allows for adjustment of the distance between the high-temperature resistant flexible material 11 and the flame, thereby regulating the amount of heat reaching the high-temperature resistant flexible material 11. The height adjustment handle 53 can be manually adjusted or automatically adjusted via a stroke mechanism, depending on the specific circumstances and convenience.

[0038] Preferably, the test assembly 1 further includes an annular specimen pressure strip 13. After the high-temperature resistant flexible material 11 (which may be circular) is placed inside the specimen mounting plate 12, the test assembly 1 is pressed by the annular specimen pressure strip 13. At the same time, screws and nuts are used to fix the high-temperature resistant flexible material 11 to the specimen mounting plate 12 and the annular specimen pressure strip 13.

[0039] Preferably, such as Figure 1 As shown, the high-temperature resistant flexible material performance testing device also includes an auxiliary component 6. The auxiliary component 6 includes a second connector 62 and a sleeve 61 that matches the periphery of the second support beam 21. The sleeve 61 is fitted onto the second support beam 21 and can move up and down along the second support beam 21. The first end of the second connector 62 is connected to the sleeve 61, and the second end of the second connector 62 is fastened to the edge of the specimen mounting plate 12.

[0040] While the lead screw 51 rotates linearly via the height adjustment handle 53, causing the first connecting member 52 to move downwards, the second connecting member 62 also causes the sleeve 61 to move downwards along the second support beam 21. This synchronizes the downward movement of different parts of the high-temperature resistant flexible material 11, maintaining its basic horizontal position. A small amount of lubricating oil can be added to the sleeve 61 to reduce friction between it and the second support beam 21.

[0041] Preferably, such as Figure 1 As shown, the scorching heat flow assembly 3 includes a multi-heat source combination device 31, a fixed interface 34, an oxyacetylene mounting beam 32, and a rotating fixed beam 33;

[0042] The multi-heat source combination device 31 is located below the test component 1, and during the test, the flame of the multi-heat source combination device 31 is directed towards the lower part of the test component 1. Preferably, during the test, the flame of the multi-heat source combination device 31 is directed directly below the test component 1.

[0043] The multi-heat source combination device 31 is connected to the first end of the oxyacetylene mounting beam 32 through the fixed interface 34. The second end of the oxyacetylene mounting beam 32 is connected to the rotating fixed beam 33. The rotating fixed beam 33 is sleeved on the third support beam 21 located below the test component 1 and can move up and down with the external force provided by the device. The third support beam 21 can move up and down along the third support beam 21. The third support beam 21 can also be rotated along the third support beam 21 with the external force provided by the device.

[0044] The third support beam 21 has multiple positioning holes at different heights that match the rotating fixed beam 33. During the test, the rotating fixed beam 33 is fixed to at least one of the multiple positioning holes at the matching height and matching position on the third support beam 21 by a fixing pin, that is, multiple positioning holes are set at the same height.

[0045] Before conducting the experiment, the multi-heat source combination device 31 needs to be installed and fixed through the fixing interface 34. The multi-heat source combination device 31 is a handheld oxyacetylene spray gun. The oxyacetylene spray gun is clamped according to the actual situation, and the usual fixing part is the canister of the oxyacetylene spray gun.

[0046] By rotating the fixed beam 33 on the third support beam 21, the oxyacetylene mounting beam 32 is moved, and the position of the fixed interface 34 is further adjusted until the flame formed by the multi-heat source combination device 31 is aimed directly below the high-temperature resistant flexible material 11, that is, in the center position.

[0047] Specifically, based on the relationship between the distance between the high-temperature resistant flexible material 11 and the multi-heat source combination device 31 and the magnitude of the heat flow generated by the flame, the specimen mounting plate 12 is moved downward along the first support beam 21 to sequentially move the high-temperature resistant flexible material 11 to the required set positions, including:

[0048] Multiple positioning holes matching the rotating fixed beam 33 are provided at different heights of the third support beam 21. During the test, the specimen mounting plate 12 is moved downward along the first support beam 21, and the high-temperature resistant flexible material 11 is moved to the required matching height and matching position in sequence. Then, the rotating fixed beam 33 is fixed to the positioning holes corresponding to the matching height and matching position on the third support beam 21 by fixing pins, so as to achieve the function of positioning and fixing the multi-heat source combination equipment 31.

[0049] Preferably, the multi-heat source combination device 31 is an oxyacetylene device, but it can also be replaced by a multi-heat source combination, such as a combination of a quartz lamp array and an oxyacetylene spray gun, or a combination of a quartz lamp array (providing a heat source) and a high-pressure gas source (simulating the scouring effect of high-speed airflow).

[0050] Preferably, the high-temperature resistant flexible material performance testing device also includes a scale on the first support beam 21 for marking distance-heat flow.

[0051] Before testing the high-temperature resistant flexible material 11, the heat flow needs to be calibrated. The high-temperature resistant flexible material performance testing device is installed, but the high-temperature resistant flexible material 11 is not installed in the same position as the high-temperature resistant flexible material 11. Instead, a heat flow sensor is installed, and the installation height of the sensitive surface of the heat flow sensor and the lower surface of the high-temperature resistant flexible material 11 is consistent, and it is located in the center of the specimen mounting plate 12.

[0052] The multi-heat source combination device 31 (i.e., oxyacetylene spray gun) is fixed on the fixed interface 34, and the rotating fixed beam 33 is adjusted to ensure that the flame generated by the multi-heat source combination device 31 and the sensitive surface of the heat flow sensor are aligned in the vertical direction.

[0053] Turn on the multi-heat source combination device 31, adjust the height adjustment handle 53 to make the test component 1 (at this time, the high-temperature resistant flexible material 11 is a heat flow sensor) move along the height direction, record the heat flow measurement values ​​corresponding to different heights, and obtain "distance (mm) between the high-temperature resistant flexible material 11 and the multi-heat source combination device 31 - heat flow (kW / m)". 2 The calibration curve is set, and a "distance-heat flow" scale is drawn and pasted on the height corresponding to the first support beam 21, so that the heat flow adjustment can be observed through the scale during the test operation.

[0054] At the initial height, corresponding to the initial heat flux of the test, it is equivalent to the heat flux being a function of time t, with an initial value of q (t=0). After the initial heat flux calibration, the correspondence between the heat flux reaching the test piece and the height of the high-temperature resistant flexible material 11 is obtained. Therefore, there is an initial height h (t=0) corresponding to the initial heat flux. If the heat flux increases in the subsequent time, the high-temperature resistant flexible material 11 needs to move downward, that is, closer to the flame of the multi-heat source combination device 31. If the heat flux decreases in the subsequent time, the high-temperature resistant flexible material 11 needs to move upward, that is, away from the flame of the multi-heat source combination device 31. Usually, during the test, the heat flux corresponding to the maximum installation height of the high-temperature resistant flexible material 11 should be less than or equal to the minimum heat flux of the test condition.

[0055] Based on the relationship between the distance between the high-temperature resistant flexible material 11 and the multi-heat source combination device 31 and the magnitude of the heat flow generated by the flame, the specimen mounting plate 12 is moved downward along the first support beam 21, and the high-temperature resistant flexible material 11 is moved sequentially to the required set position. This means:

[0056] Based on the "distance-heat flow" relationship on the scale, and considering the change in heat magnitude of the jet from the engine nozzle that the flexible heat-resistant skirt needs to withstand, the corresponding heat flow is matched in the "distance-heat flow" relationship. Then, the specimen mounting plate 12 is moved downward along the first support beam 21, and the high-temperature resistant flexible material 11 is moved sequentially to the distance corresponding to the heat flow, so that the high-temperature resistant flexible material 11 can be subjected to the flame scouring of the multi-heat source combination device 31.

[0057] Preferably, the pressure simulation component 4 is positioned directly above the high-temperature resistant flexible material 11.

[0058] Preferably, such as Figure 1 As shown, the pressure simulation component 4 includes a lever 43, a support plate 44 supporting the lever 43, pressure implements 41 located at both ends of the lever 43 using the lever principle, and an internal pressure control end 42. The support plate 44 is mounted on the specimen mounting plate 12, and the pressure implements 41 are located above the high-temperature resistant flexible material 11 (preferably directly above) and can contact and detach from the high-temperature resistant flexible material 11.

[0059] During the experiment, pressure was applied to the high-temperature resistant flexible material 11 to simulate the internal pressure borne by the flexible heat-resistant skirt. This was achieved by raising the internal pressure control terminal 42 to a set height, causing the pressure implement 41 to fall onto the high-temperature resistant flexible material 11. The internal pressure control terminal 42 can be connected to a stepper motor, which raises the internal pressure control terminal 42. The weight of the pressure implement 41 is determined based on the internal pressure environment conditions of the high-temperature resistant flexible material 11; the pressure implement 41 can be a hammer or a weight. The relationship between the force applied by the pressure implement 41 to the high-temperature resistant flexible material 11 and the raising height of the internal pressure control terminal 42 needs to be obtained through prior calibration, as detailed below:

[0060] The principle is as follows: the internal pressure control end 42 and the high-temperature resistant flexible material 11 form the two ends of the lever 43, and the support plate 44 is located on the specimen mounting plate 12. By adjusting the height of the internal pressure control end 42, the pressure implementer 41 applies pressure to the center of the high-temperature resistant flexible material 11. In order to simulate the internal pressure of the high-temperature resistant flexible material 11, a concentrated load is used to simulate the surface load.

[0061] The calibration process is as follows Figure 4 As shown: 1. The distance L1 (m) from the center of gravity of the pressure implement 41 to the support plate 44, and the distance L2 (m) from the internal pressure control end 42 to the support plate 44 are measured. The area of ​​the high-temperature resistant flexible material 11 is A (m²). 2 ).

[0062] 2. The pressure conditions for the test need to be clearly defined: the "time-internal pressure" curve or the internal pressure is a constant value.

[0063] 3. The internal pressure to be tested in the test is denoted as P (Pa). The force that the pressure implementer 41 needs to apply to the high-temperature resistant flexible material 11 is F1 = P × A; the force that the internal pressure control end 42 needs to apply is F2. According to the lever principle, F1 × L1 = F2 × L2. Therefore, the force that the internal pressure control end 42 needs to apply is F2 = F1 × L1 / L2 = P × A × L1 / L2.

[0064] 4. Calibrate the relationship between the displacement of the internal pressure control terminal 42 and the force F2. Connect a force gauge to the internal pressure control terminal 42 and install a high-temperature resistant flexible material 11. The force gauge should be perpendicular to the mounting plane of the high-temperature resistant flexible material 11. Pull the force gauge upward to the required F2 reading and record the displacement of the internal pressure control terminal 42. Repeat the internal pressure conditions required for the test to obtain the relationship between the internal pressure and the displacement of the internal pressure control terminal 42. This relationship is used to adjust the force applied by the high-temperature resistant flexible material 11 during the test.

[0065] 5. If the internal pressure to be tested during the test is a certain value, a pressure test piece 41 of a specified mass can be used. The mass calculation method for the pressure test piece 41 is: M = P × A / g, where A is the area of ​​the test piece, and g = 9.81 m² / s². 2 For example, if the required internal pressure is constant at 1000 Pa, and the high-temperature resistant flexible material 11 is a circle with a radius of 0.25 m, then a pressure implement 41 weighing 20 kg is needed. Preferably, the support beam 21 is vertically positioned and located directly below the high-temperature resistant flexible material 11 during the test, so that the scorching heat flow component 3 is aligned with the center of the high-temperature resistant flexible material 11, matching the actual position of the heat shield skirt of the liquid rocket, making the simulation effect closer to reality.

[0066] Preferably, the high-temperature resistant flexible material 11 is tightly installed inside the specimen mounting plate 12.

[0067] Preferably, the specimen mounting plate 12 is annular, which can conform to the actual situation of the heat protection skirt of the liquid rocket.

[0068] The beneficial technical effects achieved by this utility model are as follows:

[0069] This invention relates to a ground-based test device for the combined ablation and internal pressure of a flexible heat shield skirt at the tail of a large liquid-fueled launch vehicle. It simulates the time-varying thermal and mechanical environment of the flexible heat shield skirt.

[0070] This corresponds to a test method combining ablation and internal pressure. The multi-heat source combination device 31 is connected to a high-pressure gas source (e.g., compressed air). The compressed air, acetylene (fuel), and oxygen are mixed and combusted. The multi-heat source combination device 31 can achieve a suitable heating environment of 0–3 Mw / m². Furthermore, because the multi-heat source combination device 31 generates a high-speed airflow, this high-speed airflow can simultaneously heat the high-temperature resistant flexible material 11 and impact its surface, effectively scouring the material. Therefore, it can assess the scouring resistance of the high-temperature resistant flexible material 11 during the ablation process. It can simultaneously assess the thermal insulation performance, load-bearing capacity, and scouring resistance of the flexible heat-resistant skirt. In the existing technology, heating equipment is used, but the erosion performance here is relative to the quartz lamp array test. Using quartz lamp array equipment to heat the material surface is another common method in the test of thermal protection materials. The quartz lamp array is similar to a household electric heater, but although it has high power and high temperature, the flow rate is low and it does not generate high-speed airflow, so it cannot test the erosion resistance of the high-temperature resistant flexible material 11.

[0071] In addition, after rocket ignition and launch, the pressure inside the tail section and the external environment changes continuously with the increase in flight altitude. The flexible heat shield at the tail of the first stage is continuously affected by the large changes in internal pressure, and the ablation process of the flexible heat shield under the action of internal pressure will be more complex. The embodiment of this utility model can form a working condition in which the jet thermal environment changes over time to adapt to the state of the constantly changing thermal environment of the heat shield during rocket flight. It can also simulate the ablation process of the high-temperature resistant flexible material 11 under the influence of large changes in internal pressure. Therefore, it can more realistically evaluate the performance of the flexible heat shield, which is of great significance for high-thrust liquid launch vehicles.

[0072] It should be understood that in the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the present invention is in a state with fewer features than all of the disclosed individual embodiments. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the present invention.

[0073] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0074] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0075] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-temperature resistant flexible material performance testing device, characterized in that, It includes a support frame (2), a test component (1), a scorching heat flow component (3) and a pressure simulation component (4). The test component (1) is mounted on the support frame (2), and the scorching heat flow component (3) is located below the test component (1) and connected to the support frame (2). The support frame (2) includes support beams (21); The test assembly (1) includes a high-temperature resistant flexible material (11) and a specimen mounting plate (12). The high-temperature resistant flexible material (11) is installed inside the specimen mounting plate (12). The specimen mounting plate (12) is connected to the first support beam (21) and can move along the first support beam (21) to a set position. The scorching heat flow assembly (3) is connected to the first support beam (21) and aligned with the high-temperature resistant flexible material (11) during the test; The pressure simulation component (4) is installed on the support frame (2). The pressure simulation component (4) is located above the high-temperature resistant flexible material (11) and can contact or detach from the high-temperature resistant flexible material (11).

2. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, It also includes a moving component (5) for moving the test component (1) to a set position on the support beam (21), the moving component (5) including a lead screw (51) and a first connector (52); the lead screw (51) is vertically arranged and connected to the first support beam (21), the first end of the first connector (52) is connected to the lead screw (51), and the second end of the first connector (52) is connected to the specimen mounting plate (12); The moving component (5) also includes a height adjustment handle (53) connected to the lead screw (51).

3. The high-temperature resistant flexible material performance testing device according to claim 2, characterized in that, It also includes an auxiliary component (6), which includes a second connector (62) and a sleeve (61) that matches the periphery of the second support beam (21). The sleeve (61) is fitted onto the second support beam (21) and can move up and down along the second support beam (21). The first end of the second connector (62) is connected to the sleeve (61), and the second end of the second connector (62) is connected to the specimen mounting plate (12).

4. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, The scorching heat flow assembly (3) includes a multi-heat source combination device (31), a fixed interface (34), an oxyacetylene mounting beam (32), and a rotating fixed beam (33); The multi-heat source combination device (31) is located below the test component (1), and during the test, the flame of the multi-heat source combination device (31) is directed towards the lower part of the test component (1); The multi-heat source combination device (31) is connected to the first end of the oxyacetylene mounting beam (32) through the fixed interface (34), and the second end of the oxyacetylene mounting beam (32) is connected to the rotating fixed beam (33). The rotating fixed beam (33) is sleeved on the third support beam (21) located below the test assembly (1) and can move up and down and rotate along the third support beam (21). The third support beam (21) has multiple positioning holes at different heights that match the rotating fixed beam (33). During the test, the rotating fixed beam (33) is fixed to at least one of the multiple positioning holes at the matching height and matching position on the third support beam (21) by a fixing pin.

5. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, It also includes a scale for marking distance-heat flow, located on the first support beam (21).

6. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, The pressure simulation component (4) includes a lever (43), a support plate (44) supporting the lever (43), pressure implements (41) located at both ends of the lever (43) using the lever principle, and an internal pressure control end (42). The support plate (44) is mounted on the specimen mounting plate (12), and the pressure implements (41) are located above the high-temperature resistant flexible material (11) and can contact or detach from the high-temperature resistant flexible material (11).

7. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, The support beam (21) is vertically arranged and is located directly below the high-temperature resistant flexible material (11) during the test.

8. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, The high-temperature resistant flexible material (11) is tightly installed inside the specimen mounting plate (12).

9. The high-temperature resistant flexible material performance testing device according to claim 1, characterized in that, The specimen mounting plate (12) is ring-shaped.

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