Ultra-high temperature transient thermal experiment system and experiment method of heat-proof material

Abstract

This invention discloses an ultra-high temperature transient thermal experimental system for heat-resistant materials, comprising an oxyacetylene ablation stage and a horizontal, movable high-temperature furnace. The furnace is placed on the ablation stage, and an oxyacetylene ablation gun is fixed on the stage. A rectangular through-slot is formed in front of the oxyacetylene ablation gun. The furnace contacts the stage via five wheels. The furnace includes a linear motion control module, a furnace body, a pressure control module, an air intake system, and a protective device. This invention also discloses an experimental method for the ultra-high temperature transient thermal experimental system for heat-resistant materials. This invention solves the problem of low-cost, high-precision simulation of extreme environments involving ultra-high temperatures, transient thermal shock, high pressure, and the coupling effect of specific gas atmospheres in ground experiments, addressing the issues of insufficient heating rate, limited atmosphere simulation, and uncontrollable pressure environment in existing equipment.

Description

Technical Field

[0001] This invention belongs to the field of ablation-resistant aerospace materials technology, specifically relating to an ultra-high temperature transient thermal experimental system for heat-resistant materials. This invention also relates to experimental methods for the ultra-high temperature transient thermal experimental system for heat-resistant materials. Background Technology

[0002] The extreme service environments of hypersonic vehicles, reentry vehicles, and rocket engine nozzles place stringent demands on the ablation resistance of heat-resistant materials. Accurately simulating the coupling effects of ultra-high temperatures (2000–3000°C), transient thermal shock, and specific gas atmospheres (such as oxidation, nitriding, and carbonization environments) in ground-based experiments is a key challenge in the development of heat-resistant materials. However, existing experimental equipment still has significant shortcomings in heat source control, atmosphere simulation, pressure environment simulation, and multi-field coupling simulation, making it difficult to meet the testing requirements of novel ablation-resistant materials. Some technical limitations of current simulation systems include:

[0003] (1) Insufficient heat source control precision: Although traditional electric arc wind tunnels, plasma torches and other equipment can provide ultra-high temperature environments, their heating rates are limited and their costs are high, making it difficult to simulate the transient thermal shock during reentry. Although laser heating can achieve rapid heating, the energy distribution is uneven. The heating rate of high-temperature tube furnace equipment is relatively slow, and the maximum temperature is around 1700℃, which cannot meet the requirements for rapid heating and ultra-high temperature environments.

[0004] (2) Simulation of a single atmosphere: Existing equipment is mostly designed for a single oxidation environment, but hypersonic flight may encounter complex atmospheres such as thin atmosphere, nitrogen-dominated atmosphere or carbon-containing atmosphere.

[0005] (3) Uncontrollable pressure environment: Existing experimental systems generally lack pressure control capabilities, and the lack of pressure parameters makes it difficult to accurately evaluate the thermo-mechanical coupling behavior of materials under real service conditions.

[0006] (4) Lack of multi-field coupling simulation capability: Existing equipment is difficult to simulate working conditions under the coupling effect of multiple physical fields such as ultra-high temperature, transient thermal shock, complex atmosphere and high pressure environment, which leads to deviations in the performance evaluation of materials.

[0007] To address the aforementioned technical challenges, this invention proposes an ultra-high temperature transient thermal experimental system for heat-resistant materials. This system enables thermal environment simulation testing involving ultra-high temperatures, transient heating, pre-set atmosphere generation, and high-pressure environments. Its modular design caters to diverse experimental needs. This system provides a low-cost, high-fidelity experimental method for evaluating material performance under complex environments, overcoming the limitations of traditional equipment in transient thermo-chemical coupling simulation. Summary of the Invention

[0008] The purpose of this invention is to provide an ultra-high temperature transient thermal experimental system for heat-resistant materials, which can simulate extreme environments such as ultra-high temperature, transient thermal shock, high pressure environment and specific gas atmosphere coupling in ground experiments at low cost and high precision, so as to solve the problems of insufficient heating rate, single atmosphere simulation and uncontrollable pressure environment of existing equipment.

[0009] Another objective of this invention is to provide an experimental method for an ultra-high temperature transient thermal experimental system for heat-resistant materials.

[0010] The first technical solution adopted in this invention is an ultra-high temperature transient thermal test system for heat-resistant materials, including an oxyacetylene ablation stage and a horizontal movable high-temperature furnace. The high-temperature furnace is placed on the ablation stage, and an oxyacetylene ablation gun is fixed on the ablation stage. A rectangular through slot is opened on the front surface of the oxyacetylene ablation gun. The high-temperature furnace contacts the ablation stage through five wheels. The high-temperature furnace includes a linear motion control module, a furnace body, a pressure control module, an air intake system, and a protective device.

[0011] The first technical solution of the present invention is further characterized in that, The linear motion control module includes a lateral motion device and a longitudinal motion device. The lateral motion device includes a base plate. Wheels A, B, C, D, and E are mounted on axles A, B, C, D, and E of the base plate via bearings A34, B, C, D, and E, respectively. The bearings are axially positioned using elastic retaining rings A, B, C, D, and E for their respective shaft holes. The wheels span across both sides of a rectangular through slot. The fixed end of the lateral telescopic rod is connected to a fixing component via bolt assembly A and placed on a fixed block on the ablation stage surface. The fixing component is connected via an interference fit. On the fixed block, the telescopic end of the transverse telescopic rod is connected to the base plate via bolt assembly B at the waist-shaped hole A on the base plate. The transverse telescopic rod enables the high-temperature furnace to move laterally along the elongated groove 1-1 through telescopic movement, moving it away from or to the front of the ablation gun. The two limiting blocks A, B, C, and D are respectively connected to the waist-shaped holes B, C, D, and E on the base plate via bolt assemblies C, D, E, and F, and are locked in the inner side of the rectangular through groove. Since the limiting device is set in a lateral position and locked in the inner side, it can prevent the wheel from falling into the through groove, thereby limiting the longitudinal position of the base plate and guiding its transverse linear movement.

[0012] The longitudinal motion device includes a base, and wheels F, G, H, and I are respectively mounted on the base axle F, axle G, axle H, and axle I via bearings F, bearing G, bearing H, and bearing I. The bearings are axially positioned by elastic retaining rings F, G79, H, and I for the shaft holes, respectively. The four wheels are straddling the wheel grooves A and B on the base plate. The guide rail is fixed to the base plate by screw assembly A and screw assembly B. The slider is slidably connected inside the guide rail and can move along the guide rail. The stroke of the longitudinal telescopic rod is 0-30mm. The fixed end of the longitudinal telescopic rod is connected to the bracket by a nut. The bracket is fixed to the slider by screw assembly C and screw assembly D. The telescopic end of the longitudinal telescopic rod is connected to the vertical shaft of the base through a shaft hole. The longitudinal telescopic rod can realize the longitudinal movement of the high-temperature furnace along the axis of the ablation gun by telescopic movement, thereby changing the longitudinal distance between the high-temperature furnace and the flame core of the ablation flame. It can be continuously adjusted from 0-30mm, thereby realizing rapid heating of different target temperatures.

[0013] The furnace body includes an experimental chamber and end caps. The experimental chamber has the following structure: a rectangular box with three square cavities inside. The upper cavity, called the sample chamber, is used to hold experimental samples. The two lower cavities hold solid / liquid media that can decompose or volatilize at high temperatures to produce gas, called environmental chambers. The side of the chamber features a square flange A structure with eight through holes around its perimeter. The experimental chamber is connected to the square flange B on the end cap via bolt assemblies G, H, I, J, K, L, M, and N. The end face of square flange A has a sealing groove with a sealing ring inside to achieve end face sealing. The top of the experimental chamber has a recessed counterweight groove for holding counterweights and a waist-shaped handle hole. Both the experimental chamber and the end cap have boss structures on their outer walls, with temperature measuring holes A and B for placing thermocouples to measure the temperature of the experimental chamber.

[0014] The pressure control module includes a base, a labyrinth seal structure, a labyrinth seal element, a pressure relief channel, a fixed counterweight, and an adjustable counterweight. The pressure control module utilizes a gravity-based pressure limiting principle for pressure control. A stepped hole is located at the center of the upper part of the base, and the labyrinth seal element is connected to the stepped hole via an interference fit. A pressure relief channel leading to the sample chamber is located at the center of the lower part of the experimental chamber, and a labyrinth seal structure is designed. This structure forms a labyrinth seal with the labyrinth seal element, using the weight of the furnace body and its connecting parts to maintain the gas pressure inside the experimental chamber. When the gas pressure inside the experimental chamber exceeds the total weight and atmospheric pressure, gas pushes the chamber outward from the pressure relief port, causing the labyrinth seal to fail and releasing the internal gas pressure. When the internal pressure is lower than the design pressure, the furnace body falls back, thus using gravity to limit the pressure. Two guide holes are diagonally located on the upper part of the base, connected to two guide posts welded diagonally to the lower part of the experimental chamber via a clearance fit, serving as a guide during pressure relief. The furnace body, together with its connecting parts, constitutes the fixed counterweight of the pressure control module, while the counterweight blocks placed in the counterweight slot of the experimental chamber constitute the adjustable counterweight. By adjusting the total counterweight, pressure regulation within the range of 0-6MPa can be achieved.

[0015] The intake system includes an intake pipe, a valve body, and a valve core. The intake pipe is a hollow cylindrical structure, welded integrally with the valve body. A conical cavity on the valve body connects to the inner bore of the pipe, and the conical valve core is located inside this cavity. Two connecting holes are located on the drum-shaped flange A at the end of the valve body, which connects to the downward-facing drum-shaped flange B on the end cap via bolt assemblies O and P. An annular groove is formed on the end face of drum-shaped flange B, inside which an O-ring seal is placed to achieve end-face sealing. The conical cavity of the valve body connects to the experimental chamber cavity through the inner bore of the end cap. When external gas is introduced through the intake pipe, the conical valve core is pushed upwards by the gas, allowing the gas to enter the experimental chamber through the inner bore of the end cap, providing a specific atmospheric environment. When the internal pressure exceeds the intake pressure, the internal pressure pushes the conical valve core downwards, blocking the inner bore of the pipe. By introducing gases such as O2, N2, and Ar through the intake system, the oxidizing, inert, or reducing atmosphere can be controlled.

[0016] The protective device includes side plate A, side plate B, top plate, rear plate A, and rear plate B. Side plate A, side plate B, and rear plate A and rear plate B are tightly fitted into the square groove of the base plate. Side plate A and rear plate B are fastened together by screws H, I, and J. Side plate B and rear plate B are fastened together by screws K, L, and M. The top plate is placed above side plate A, side plate B, and rear plate B and is fastened to the three protective plates by screws A, B, C, D, E, F, and G. Rear plate B adopts a gantry structure.

[0017] The second technical solution adopted in this invention is an experimental method for an ultra-high temperature transient thermal test system for heat-resistant materials. Based on the ultra-high temperature transient thermal test system for heat-resistant materials, the method is implemented according to the following steps: The ignition procedure is initiated, and after the oxyacetylene flame stabilizes, the experimental chamber is driven by a lateral motion device to move at a constant speed to the ablation position. The experimental chamber is then moved from the low-temperature zone around the flame periphery to the high-temperature zone at the flame core by a longitudinal motion device, so that the surface temperature of the material can be rapidly increased from room temperature to the target temperature, thus achieving transient thermal shock testing.

[0018] The second technical solution of the present invention is further characterized in that, The specific steps include the following: Heat source parameter graded control: In the preheating stage, when the room temperature is 500℃, the material is placed in the outer flame area of ​​the flame, and the temperature of the outer flame is used to achieve the basic temperature rise; In the rapid heating stage, when the temperature rises to 500℃-3000℃, the material is moved to the inner flame and flame core area of ​​the flame, and the high temperature gas is used to achieve rapid heating; Thermocouples are used to monitor the surface temperature of the material in real time, and the distance between the material and the flame is dynamically adjusted to control the target temperature; Solid / liquid media (such as H2O, dry ice, etc.) are pre-placed in the environmental chamber and decomposed or volatilized at high temperatures to create a specific atmosphere; combined with the air intake system, O2 / N2 / Ar gases are introduced to achieve the control of oxidizing, inert, or reducing atmospheres; the airflow direction is controlled by a one-way valve to quickly construct a specific experimental atmosphere environment; Gas is generated by pyrolysis of materials or by a pre-set chemical reaction module (such as acid-base neutralization) to form a high pressure in a sealed experimental chamber; the pressure is regulated within the range of 0-6MPa by a pressure control module. The pressure control module uses the principle of gravity-based pressure limiting and achieves quantitative control of pressure through adjustable counterweights to ensure the stability of the high-pressure environment.

[0019] The beneficial effects of this invention are: a high-temperature transient thermal experimental system for heat-resistant materials; the development of an oxyacetylene flame heat source for rapid high-temperature heating; the construction of a specific atmosphere experimental environment control system and method under ultra-high temperature conditions; and the realization of the construction and maintenance of a high-pressure environment during the ablation process of heat-resistant materials. This system uses an oxyacetylene flame as a stable high-heat source (up to 3100℃), and achieves rapid ultra-high temperature heating by adjusting the distance between the sample and the flame core (continuously adjustable from 0-30mm), simulating the transient thermal shock environment during reentry. The system integrates a high-pressure sealed experimental chamber (operating pressure adjustable from 0-6MPa), and utilizes the gases from the high-temperature decomposition or volatilization of pre-placed materials within the chamber, in conjunction with an auxiliary air intake system, to construct a specific atmosphere experimental environment, effectively reproducing the ablation behavior of materials under complex service environments. Attached Figure Description

[0020] Figure 1 This is a perspective view of the ultra-high temperature transient thermal test system of the heat-resistant material of the present invention; Figure 2 This is a three-dimensional view showing the distribution of the lateral and longitudinal motion devices of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention. Figure 3 This is a top view of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention; Figure 4 This is a front view of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (with the oxyacetylene ablation gun 2 removed). Figure 5 This is a perspective view of the horizontal movable high-temperature furnace of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (with protective devices removed). Figure 6 This is a perspective view of the experimental chamber 31 of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention; Figure 7 This is a perspective view of the experimental chamber 31 and guide column 33 of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention. Figure 8 This is a front view of the horizontal movable high-temperature furnace of the heat-resistant material ultra-high temperature transient thermal test system of the present invention (with the horizontal telescopic rod 6 and other parts removed). Figure 9 This is a top view of the horizontal movable high-temperature furnace of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (with the horizontal telescopic rod 6, the upper top plate 4, and other parts removed). Figure 10 This is a bottom view of the horizontal movable high-temperature furnace of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (with the horizontal telescopic rods 6 and other parts removed). Figure 11 A full sectional view (AA) of the horizontal movable high-temperature furnace of the heat-resistant material ultra-high temperature transient thermal test system of the present invention, cut along the joint surface of the end cover 28 and the test chamber 31 (with the transverse telescopic rod 6 and other parts removed). Figure 12 This is a rear view of the horizontal movable high-temperature furnace of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (with the horizontal telescopic rod 6, rear upright plate A14, etc. removed). Figure 13 This is a full sectional view (BB) of the horizontal movable high-temperature furnace of the heat-resistant material ultra-high temperature transient thermal test system of the present invention, cut along the conical cavity of valve body 27. Figure 14 This is a front view of the horizontal movable high-temperature furnace component of the ultra-high temperature transient thermal test system for heat-resistant materials of the present invention (including base 32, labyrinth seal 55, wheels F77 and G78). Figure 15This is a top view of the horizontal movable high-temperature furnace component of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (including base 32, labyrinth seal 55, wheels F77, G78, H83, I84, bearings F75, G80, H82, I85, and elastic retaining rings F76, G79, H81, I86 for shaft holes). Figure 16 This is a left view of the horizontal movable high-temperature furnace component of the ultra-high temperature transient thermal test system for heat-resistant materials of the present invention (including base 32, wheels G78 and H83, bearings G80 and H82, and elastic retaining rings G79 and H81 for shaft holes). Figure 17 This is a perspective view of the horizontal movable high-temperature furnace component of the ultra-high temperature transient thermal test system for the heat-resistant material of the present invention (including base 32, labyrinth seal 55, wheels F77, G78, and H83).

[0021] In the diagram, 1. Ablation stage surface; 1-1: Rectangular through groove; 2. Oxyacetylene ablation gun; 3. Wheel A; 4. Top plate; 5. Wheel B; 6. Lateral telescopic rod; 7. Bolt assembly A; 8. Fixing component; 9. Fixing block; 10. Screw A; 11. Screw B; 12. Screw C; 13. Wheel C; 14. Rear upright plate A; 15. Wheel D; 16. Guide rail; 17. Slider; 18. Longitudinal telescopic rod; 19. Screw D; 20. Wheel E; 21. Screw E; 22. Screw F; 23. Base plate; 23-1. Waist-shaped hole A; 23-2. Axle A; 23-3. Axle B; 23-4. Axle C; 23-5. Axle D; 23-6. Axle E; 23-7. Waist-shaped hole B; 23-8. Waist-shaped hole B; Hole C; 23-9. Waist-shaped hole D; 23-10. Waist-shaped hole E; 23-11. Wheel groove A; 23-12. Wheel groove B; 23-13. Square groove; 24. Bolt assembly B; 25. Screw G7; 26. Inlet pipe; 27. Valve body; 27-1. Conical cavity; 27-2. Drum-shaped flange A; 28. End cap; 28-1. Square flange B; 28-2. Drum-shaped flange B; 28-3. End cap inner hole; 28-4. Temperature measuring hole B; 29. ​​Side plate A; 30. Side plate B; 31. Experimental chamber; 31-1. Sample chamber; 31-2. Environmental chamber; 31-3. Square flange A; 31-4. Sealing groove; 31-5. Counterweight groove; 31-6. Handle hole; 31-7. Temperature measuring hole; 31-8. Leakage... 31-9. Labyrinth seal structure; 32. Base; 32-1. Axle F; 32-2. Axle G; 32-3. Axle H; 32-4. Axle I; 32-5. Vertical shaft; 32-6. Stepped hole; 32-7. Guide hole; 33. Guide post; 34. Bearing A; 35. Elastic retaining ring A for shaft hole; 36. Sealing ring A; 37. Elastic retaining ring B for shaft hole; 38. Bearing B; 39. Bolt assembly C; 40. Bolt assembly D; 41. Elastic retaining ring C for shaft hole; 42. Bearing C; 43. Screw assembly C; 44. Bracket; 45. Screw assembly A; 46. Bearing D; 47. Elastic retaining ring D for shaft hole; 48. Nut; 49. Screw assembly D; 50. Rear upright plate B; 51. Bearing E; 5 2. Resilient retaining ring E for shaft bore; 53. Bolt assembly E; 54. Bolt assembly F; 55. Labyrinth seal; 56. Limiting block A; 57. Limiting block B; 58. Limiting block C; 59. Limiting block D; 60. Screw assembly B; 61. Bolt assembly G; 62. Bolt assembly H; 63. Bolt assembly I; 64. Bolt assembly J; 65. Bolt assembly K; 66. Bolt assembly L; 67. Bolt assembly M; 68. Bolt assembly N; 69. Screw H; 70. Screw I; 71. Screw J; 72. Screw K; 73. Screw L; 74. Screw M; 75. Bearing F; 76. Resilient retaining ring F for shaft bore; 77. Wheel F; 78. Wheel G; 79. Resilient retaining ring G for shaft bore; 80. Bearing G; 81.81. Resilient retaining ring H for shaft bore; 82. Bearing H; 83. Wheel H; 84. Wheel I; 85. Bearing I; 86. Resilient retaining ring I for shaft bore; 87. Bolt assembly O; 88. Bolt assembly P; 89. O-ring seal. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Example 1 This invention provides an ultra-high temperature transient thermal test system for heat-resistant materials, such as... Figure 1 As shown, it includes an existing oxyacetylene ablation stage and a horizontal movable high-temperature furnace. The high-temperature furnace is placed on the ablation stage platform 1, and an oxyacetylene ablation gun 2 is fixed on the ablation stage platform 1. It can provide a heat flow with a maximum temperature of 3100℃. When the high-temperature furnace is moved to the front of the ablation gun 2, the oxyacetylene flame can rapidly heat the sample placed in the high-temperature furnace and achieve uniform temperature rise. Furthermore, the distance between the experimental chamber and the flame core of the ablation gun can be changed by the longitudinal movement device, thereby controlling the target temperature of rapid temperature rise.

[0024] The front platform of the oxyacetylene ablation gun 2 has a rectangular through-slot 1-1, and the high-temperature furnace contacts the ablation platform 1 via five wheels. The horizontal movable high-temperature furnace includes a linear motion control module, a furnace body, a pressure control module, an air intake system, and protective devices.

[0025] The linear motion control module includes a lateral motion device and a longitudinal motion device.

[0026] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9The lateral movement device includes a base plate 23. Wheels A3, B5, C13, D15, and E20 are mounted on axles A23-2, B23-3, C23-4, D23-5, and E23-6 of the base plate via bearings A34, B38, C42, D46, and E51, respectively. Elastic retaining rings A35, B37, C41, D47, and E52 are used to axially position the bearings. The wheels span both sides of the rectangular through slot 1-1. The fixed end of the lateral telescopic rod 6 is connected to the fixing member 8 via bolt assembly A7 and placed on the fixing block 9 of the ablation stage 1. The fixing member 8 is connected to the fixing block 9 via an interference fit. The telescopic end of the telescopic rod 6 is connected to the base plate 23 via bolt assembly B24 at the waist-shaped hole A23-1 on the base plate 23. The telescopic rod 6 moves laterally along the elongated groove 1-1 through telescopic movement, moving it away from or to the front of the ablation gun 2. The two limiting blocks A56, B57, C58, and D59 are respectively connected to the waist-shaped holes B23-7, C23-8, D23-9, and E23-10 on the base plate via bolt assembly C39, D40, E53, and F54, and are locked in the inner side of the rectangular through groove 1-1. Since the limiting device is set in a lateral position and locked in the inner side, it can prevent the wheel from falling into the through groove, thereby limiting the longitudinal position of the base plate 23 and guiding its lateral linear movement.

[0027] Combination Figure 7 , Figure 9 , Figure 10 , Figure 14 , Figure 15 , Figure 16 , Figure 17The longitudinal motion device includes a base 32, and wheels F77, G78, H83, and I84 are respectively mounted on the base wheel axles F32-1, G32-2, H32-3, and I32-4 via bearings F75, G80, H82, and I85, respectively. The bearings are axially positioned by elastic retaining rings F76, G79, H81, and I86 for the shaft holes, respectively. The four wheels span the wheel grooves A23-11 and B23-12 on the base plate 23. The guide rail 16 is fixed to the base plate 23 by screw assembly A45 and screw assembly B60. The slider 17 is slidably connected inside the guide rail 16 and can move along the guide rail 16. The stroke of the longitudinal telescopic rod 18 is 0-30mm. The fixed end of the longitudinal telescopic rod 18 is connected to the bracket 44 by nut 48. The bracket 44 is fixed to the slider 17 by screw assembly C43 and screw assembly D49. The telescopic end of the longitudinal telescopic rod 18 is connected to the vertical shaft 32-5 of the base through shaft hole. The longitudinal telescopic rod 18 can realize the longitudinal movement of the high temperature furnace along the axis of the ablation gun 2 by telescopic movement, thereby changing the longitudinal distance between the high temperature furnace and the flame core of the ablation flame. It can be continuously adjusted from 0-30mm, thereby realizing rapid heating of different target temperatures.

[0028] ( Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 The furnace body includes an experimental chamber 31 and an end cap 28. The specific structure of the experimental chamber 31 is as follows: the rectangular box has three square cavities inside. The upper square cavity is used to place experimental samples and is called the sample chamber 31-1. The two lower square cavities are used to place solid / liquid media (such as H2O, dry ice, etc.) that can decompose or volatilize at high temperatures to produce gas and are called the environmental chambers 31-2. The side of the box has a square flange A31-3 structure. The square flange A31-3 has eight through holes around its perimeter. The experimental chamber 31 is connected to the square flange B28-1 on the end cap 28 by bolt assemblies G61, H62, I63, J64, K65, L66, M67, and N68. The end face of the square flange A31-3 has a sealing groove 31-4, and a sealing ring 36 is set inside the sealing groove 31-4 to achieve end face sealing. The top of the experimental chamber 31 is provided with a counterweight groove 31-5 with a recessed structure for placing a counterweight block, and has an oblong handle hole 31-6. Both the outer walls of the experimental chamber 31 and the end cover 28 are provided with a boss structure, with temperature measuring holes A31-7 and B28-4 on the boss for placing thermocouples to test the temperature of the experimental chamber 31.

[0029] Combination Figure 14 , Figure 15 , Figure 16 , Figure 17 The pressure control module includes a base 32, a labyrinth seal structure 31-9, a labyrinth seal 55, a pressure relief channel 31-8, a fixed counterweight, and an adjustable counterweight. The pressure control module utilizes a gravity-based pressure limiting principle for pressure control. A stepped hole 32-6 is located at the center of the upper part of the base 32. The labyrinth seal 55 is connected to the stepped hole 32-6 via an interference fit. A pressure relief channel 31-8 leading to the sample chamber is located at the center of the lower part of the experimental chamber 31, and a labyrinth seal structure 31-9 (made of metal) is designed therein. This structure forms a labyrinth seal with the labyrinth seal 55, using the weight of the furnace body and its connecting parts to maintain the internal gas pressure of the experimental chamber 31. When the internal gas pressure of the experimental chamber 31 exceeds the pressure generated by the total weight and atmospheric pressure, the gas pushes the chamber outward from the pressure relief port 31-8, causing the labyrinth seal to fail and releasing the internal gas pressure. When the internal pressure is lower than the design pressure, the furnace body falls back, thus using gravity to achieve pressure limiting. Two guide holes 32-7 are diagonally opened above the base 32, which are connected to two guide posts 33 diagonally welded below the experimental chamber 31 through a clearance fit, serving as a guide during pressure relief. The furnace body, together with its connecting parts, constitutes the fixed counterweight of the pressure control module, while the counterweight blocks placed in the counterweight groove 31-5 of the experimental chamber constitute the adjustable counterweight. By adjusting the total counterweight (0-7kg), pressure regulation within the range of 0-6MPa can be achieved.

[0030] Combination Figure 4 , Figure 8 , Figure 9 , Figure 11 , Figure 13 The intake system includes an intake pipe 26, a valve body 27, and a valve core 69. The intake pipe 26 is a hollow cylindrical structure. The intake pipe 26 and the valve body 27 are welded together. The conical cavity 27-1 on the valve body 27 is connected to the inner hole of the pipe 26. The conical valve core 69 is located inside the conical cavity 27-1. Two connecting holes are opened on the drum-shaped flange A27-2 at the end of the valve body 27. The flanges are connected to the downward-facing drum-shaped flange B28-2 on the end cover 28 through bolt assemblies O87 and P88. The end face of the drum-shaped flange B28-2 has an annular groove. An O-ring seal 89 is placed inside the annular groove to achieve end face sealing. The conical cavity 27-1 of the valve body is connected to the experimental chamber cavity through the inner hole 28-3 of the end cap. When external gas is introduced from the inlet pipe 26, the conical valve core 69 is pushed upward by the gas, and the gas enters the experimental chamber 31 through the inner hole 28-3 of the end cap, providing a specific atmospheric environment for the experimental chamber 31. When the internal pressure is greater than the inlet pressure, the internal gas pressure pushes the conical valve core 69 downward, blocking the inner hole of the pipe 26. By introducing gases such as O2 / N2 / Ar through the inlet system, the oxidizing, inert, or reducing atmosphere can be controlled.

[0031] Combination Figure 1 , Figure 2 , Figure 4 , Figure 10 , Figure 12 , Figure 13 The protective device includes side uprights A29, side uprights B30, top plate 4, rear uprights A14, and rear uprights B50. Side uprights A29, B30, A14, and B50 are tightly fitted into the square grooves 23-13 of the base plate. Side uprights A29 and B50 are fastened together with screws H69, I70, and J71. Side uprights B30 and B50 are fastened together with screws K72, L73, and M74. Top plate 4 is placed above side uprights A29, B30, and B50 and is fastened to the three protective plates with screws A10, B11, C12, D19, E21, F22, and G25. Rear uprights B50 adopts a gantry structure.

[0032] Example 2 This invention provides an ultra-high temperature transient thermal test system for heat-resistant materials, such as... Figure 1 As shown, it includes an existing oxyacetylene ablation stage and a horizontal movable high-temperature furnace. The high-temperature furnace is placed on the ablation stage platform 1, and an oxyacetylene ablation gun 2 is fixed on the ablation stage platform 1. It can provide a heat flow with a maximum temperature of 3100℃. When the high-temperature furnace is moved to the front of the ablation gun 2, the oxyacetylene flame can rapidly heat the sample placed in the high-temperature furnace and achieve uniform temperature rise. Furthermore, the distance between the experimental chamber and the flame core of the ablation gun can be changed by the longitudinal movement device, thereby controlling the target temperature of rapid temperature rise.

[0033] The front platform of the oxyacetylene ablation gun 2 has a rectangular through-slot 1-1, and the high-temperature furnace contacts the ablation platform 1 via five wheels. The horizontal movable high-temperature furnace includes a linear motion control module, a furnace body, a pressure control module, an air intake system, and protective devices.

[0034] Example 3 This invention provides an ultra-high temperature transient thermal test system for heat-resistant materials, such as... Figure 1 As shown, it includes an existing oxyacetylene ablation stage and a horizontal movable high-temperature furnace. The high-temperature furnace is placed on the ablation stage platform 1, and an oxyacetylene ablation gun 2 is fixed on the ablation stage platform 1. It can provide a heat flow with a maximum temperature of 3100℃. When the high-temperature furnace is moved to the front of the ablation gun 2, the oxyacetylene flame can rapidly heat the sample placed in the high-temperature furnace and achieve uniform temperature rise. Furthermore, the distance between the experimental chamber and the flame core of the ablation gun can be changed by the longitudinal movement device, thereby controlling the target temperature of rapid temperature rise.

[0035] The front platform of the oxyacetylene ablation gun 2 has a rectangular through-slot 1-1, and the high-temperature furnace contacts the ablation platform 1 via five wheels. The horizontal movable high-temperature furnace includes a linear motion control module, a furnace body, a pressure control module, an air intake system, and protective devices.

[0036] The linear motion control module includes a lateral motion device and a longitudinal motion device.

[0037] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 The lateral movement device includes a base plate 23. Wheels A3, B5, C13, D15, and E20 are mounted on axles A23-2, B23-3, C23-4, D23-5, and E23-6 of the base plate via bearings A34, B38, C42, D46, and E51, respectively. Elastic retaining rings A35, B37, C41, D47, and E52 are used to axially position the bearings. The wheels span both sides of the rectangular through slot 1-1. The fixed end of the lateral telescopic rod 6 is connected to the fixing member 8 via bolt assembly A7 and placed on the fixing block 9 of the ablation stage 1. The fixing member 8 is connected to the fixing block 9 via an interference fit. The telescopic end of the telescopic rod 6 is connected to the base plate 23 via bolt assembly B24 at the waist-shaped hole A23-1 on the base plate 23. The telescopic rod 6 moves laterally along the elongated groove 1-1 through telescopic movement, moving it away from or to the front of the ablation gun 2. The two limiting blocks A56, B57, C58, and D59 are respectively connected to the waist-shaped holes B23-7, C23-8, D23-9, and E23-10 on the base plate via bolt assembly C39, D40, E53, and F54, and are locked in the inner side of the rectangular through groove 1-1. Since the limiting device is set in a lateral position and locked in the inner side, it can prevent the wheel from falling into the through groove, thereby limiting the longitudinal position of the base plate 23 and guiding its lateral linear movement.

[0038] Example 5 Combination Figure 7 , Figure 9 , Figure 10 , Figure 14 , Figure 15 , Figure 16 , Figure 17The longitudinal motion device includes a base 32, and wheels F77, G78, H83, and I84 are respectively mounted on the base wheel axles F32-1, G32-2, H32-3, and I32-4 via bearings F75, G80, H82, and I85, respectively. The bearings are axially positioned by elastic retaining rings F76, G79, H81, and I86 for the shaft holes, respectively. The four wheels span the wheel grooves A23-11 and B23-12 on the base plate 23. The guide rail 16 is fixed to the base plate 23 by screw assembly A45 and screw assembly B60. The slider 17 is slidably connected inside the guide rail 16 and can move along the guide rail 16. The stroke of the longitudinal telescopic rod 18 is 0-30mm. The fixed end of the longitudinal telescopic rod 18 is connected to the bracket 44 by nut 48. The bracket 44 is fixed to the slider 17 by screw assembly C43 and screw assembly D49. The telescopic end of the longitudinal telescopic rod 18 is connected to the vertical shaft 32-5 of the base through shaft hole. The longitudinal telescopic rod 18 can realize the longitudinal movement of the high temperature furnace along the axis of the ablation gun 2 by telescopic movement, thereby changing the longitudinal distance between the high temperature furnace and the flame core of the ablation flame. It can be continuously adjusted from 0-30mm, thereby realizing rapid heating of different target temperatures.

[0039] Example 5 Combination Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 The furnace body includes an experimental chamber 31 and an end cap 28. The specific structure of the experimental chamber 31 is as follows: the rectangular box has three square cavities inside. The upper square cavity is used to place experimental samples and is called the sample chamber 31-1. The two lower square cavities are used to place solid / liquid media that can decompose or volatilize to produce gas at high temperatures (such as H2O, dry ice, etc.) and are called the environmental chambers 31-2. The side of the box has a square flange A31-3 structure. The square flange A31-3 has eight through holes around its perimeter. The experimental chamber 31 is connected to the square flange B28-1 on the end cap 28 by bolt assemblies G61, H62, I63, J64, K65, L66, M67, and N68. The end face of the square flange A31-3 has a sealing groove 31-4, and a sealing ring 36 is set inside the sealing groove 31-4 to achieve end face sealing. The top of the experimental chamber 31 is provided with a counterweight groove 31-5 with a recessed structure for placing a counterweight block, and has an oblong handle hole 31-6. Both the outer walls of the experimental chamber 31 and the end cover 28 are provided with a boss structure, with temperature measuring holes A31-7 and B28-4 on the boss for placing thermocouples to test the temperature of the experimental chamber 31.

[0040] Example 6 Combination Figure 14 , Figure 15 , Figure 16 , Figure 17 The pressure control module includes a base 32, a labyrinth seal structure 31-9, a labyrinth seal 55, a pressure relief channel 31-8, a fixed counterweight, and an adjustable counterweight. The pressure control module utilizes a gravity-based pressure limiting principle for pressure control. A stepped hole 32-6 is located at the center of the upper part of the base 32. The labyrinth seal 55 is connected to the stepped hole 32-6 via an interference fit. A pressure relief channel 31-8 leading to the sample chamber is located at the center of the lower part of the experimental chamber 31, and a labyrinth seal structure 31-9 (made of metal) is designed therein. This structure forms a labyrinth seal with the labyrinth seal 55, using the weight of the furnace body and its connecting parts to maintain the internal gas pressure of the experimental chamber 31. When the internal gas pressure of the experimental chamber 31 exceeds the pressure generated by the total weight and atmospheric pressure, the gas pushes the chamber outward from the pressure relief port 31-8, causing the labyrinth seal to fail and releasing the internal gas pressure. When the internal pressure is lower than the design pressure, the furnace body falls back, thus using gravity to achieve pressure limiting. Two guide holes 32-7 are diagonally opened above the base 32, which are connected to two guide posts 33 diagonally welded below the experimental chamber 31 through a clearance fit, serving as a guide during pressure relief. The furnace body, together with its connecting parts, constitutes the fixed counterweight of the pressure control module, while the counterweight blocks placed in the counterweight groove 31-5 of the experimental chamber constitute the adjustable counterweight. By adjusting the total counterweight (0-7kg), pressure regulation within the range of 0-6MPa can be achieved.

[0041] Example 7 Combination Figure 4 , Figure 8 , Figure 9 , Figure 11 , Figure 13The intake system includes an intake pipe 26, a valve body 27, and a valve core 69. The intake pipe 26 is a hollow cylindrical structure. The intake pipe 26 and the valve body 27 are welded together. The conical cavity 27-1 on the valve body 27 is connected to the inner hole of the pipe 26. The conical valve core 69 is located inside the conical cavity 27-1. Two connecting holes are opened on the drum-shaped flange A27-2 at the end of the valve body 27. The flanges are connected to the downward-facing drum-shaped flange B28-2 on the end cover 28 through bolt assemblies O87 and P88. The end face of the drum-shaped flange B28-2 has an annular groove. An O-ring seal 89 is placed inside the annular groove to achieve end face sealing. The conical cavity 27-1 of the valve body is connected to the experimental chamber cavity through the inner hole 28-3 of the end cap. When external gas is introduced from the inlet pipe 26, the conical valve core 69 is pushed upward by the gas, and the gas enters the experimental chamber 31 through the inner hole 28-3 of the end cap, providing a specific atmospheric environment for the experimental chamber 31. When the internal pressure is greater than the inlet pressure, the internal gas pressure pushes the conical valve core 69 downward, blocking the inner hole of the pipe 26. By introducing gases such as O2 / N2 / Ar through the inlet system, the oxidizing, inert, or reducing atmosphere can be controlled.

[0042] Combination Figure 1 , Figure 2 , Figure 4 , Figure 10 , Figure 12 , Figure 13 The protective device includes side uprights A29, side uprights B30, top plate 4, rear uprights A14, and rear uprights B50. Side uprights A29, B30, A14, and B50 are tightly fitted into the square grooves 23-13 of the base plate. Side uprights A29 and B50 are fastened together with screws H69, I70, and J71. Side uprights B30 and B50 are fastened together with screws K72, L73, and M74. Top plate 4 is placed above side uprights A29, B30, and B50 and is fastened to the three protective plates with screws A10, B11, C12, D19, E21, F22, and G25. Rear uprights B50 adopts a gantry structure.

[0043] Example 8 The experimental method of the ultra-high temperature transient thermal test system for the heat-resistant material of this invention, based on the ultra-high temperature transient thermal test system for the heat-resistant material, is implemented according to the following steps: The ignition procedure is initiated, and after the oxyacetylene flame stabilizes, the experimental chamber is driven by a lateral motion device to move at a constant speed to the ablation position. The experimental chamber is then moved from the low-temperature zone around the flame periphery to the high-temperature zone at the flame core by a longitudinal motion device, so that the surface temperature of the material can be rapidly increased from room temperature to the target temperature, thus achieving transient thermal shock testing.

[0044] The experimental method for the ultra-high temperature transient thermal test system of heat-resistant materials includes the following specific steps: Heat source parameter graded control: In the preheating stage, when the room temperature is 500℃, the material is placed in the outer flame area of ​​the flame, and the temperature of the outer flame is used to achieve the basic temperature rise; In the rapid heating stage, when the temperature rises to 500℃-3000℃, the material is moved to the inner flame and flame core area of ​​the flame, and the high temperature gas is used to achieve rapid heating; Thermocouples are used to monitor the surface temperature of the material in real time, and the distance between the material and the flame is dynamically adjusted to control the target temperature; Solid / liquid media (such as H2O, dry ice, etc.) are pre-placed in the environmental chamber and decomposed or volatilized at high temperatures to create a specific atmosphere; combined with the air intake system, O2 / N2 / Ar gases are introduced to achieve the control of oxidizing, inert, or reducing atmospheres; the airflow direction is controlled by a one-way valve to quickly construct a specific experimental atmosphere environment; Gas is generated by pyrolysis of materials or by a pre-set chemical reaction module (such as acid-base neutralization) to form a high pressure in a sealed experimental chamber; the pressure is regulated within the range of 0-6MPa by a pressure control module. The pressure control module uses the principle of gravity-based pressure limiting and achieves quantitative control of pressure through adjustable counterweights to ensure the stability of the high-pressure environment.

[0045] The system and method of this invention are applicable to the testing of high-temperature ablation, transient thermal shock and corrosion performance of aerospace materials.

Claims

1. A high-temperature transient thermal test system for heat-resistant materials, characterized in that, It includes an oxyacetylene ablation table and a horizontal, movable high-temperature furnace. The high-temperature furnace is placed on the ablation table surface (1). An oxyacetylene ablation gun (2) is fixed on the ablation table surface (1). A rectangular through slot (1-1) is opened on the front surface of the oxyacetylene ablation gun (2). The high-temperature furnace contacts the ablation table surface (1) through five wheels. The high-temperature furnace includes a linear motion control module, a furnace body, a pressure control module, an air intake system, and a protective device.

2. The ultra-high temperature transient thermal test system for heat-resistant materials according to claim 1, characterized in that, The linear motion control module includes a lateral motion device and a longitudinal motion device. The lateral motion device includes a base plate (23), and wheels A (3), B (5), C (13), D (15), and E (20) are respectively mounted on the base plate axles A (23-2), B (23-3), C (23-4), and D (23-5) via bearings A (34), B (38), C (42), D (46), and E (51). On the axle E (23-6), the bearing is axially positioned by using elastic retaining rings A (35), B (37), C (41), D (47), and E (52) for the shaft hole. The wheel straddles both sides of the rectangular through groove (1-1). The fixed end of the transverse telescopic rod (6) is connected to the fixing part (8) by bolt assembly A (7) and placed on the fixing block (9) of the ablation stage (1). The telescopic end of the transverse telescopic rod (6) is connected to the fixed block (9) by an interference fit. The telescopic end of the transverse telescopic rod (6) is connected to the base plate (23) by a bolt assembly B (24) at the waist-shaped hole A (23-1) on the base plate (23). The transverse telescopic rod (6) moves the high-temperature furnace laterally along the long groove (1-1) through telescopic movement, moving it away from or to the front of the ablation gun (2). The two limiting blocks A (56), B (57), C (58), and D (59) on both sides are respectively connected to the base plate. The waist-shaped holes B (23-7), C (23-8), D (23-9), and E (23-10) are connected by bolt assemblies C (39), D (40), E (53), and F (54) and are locked in the inner side of the rectangular through groove (1-1). Since the limiting device is set in the lateral position and locked in the inner side, it can prevent the wheel from falling into the through groove. It is used to limit the longitudinal position of the base plate (23) and guide its lateral linear movement.

3. The ultra-high temperature transient thermal test system for heat-resistant materials according to claim 2, characterized in that, The longitudinal motion device includes a base (32), wheels F (77), G (78), H (83), and I (84) which are respectively mounted on the base wheel axles F (32-1), G (32-2), H (32-3), and I (32-4) via bearings F (75), G (80), H (82), and I (85), respectively. The bearings are axially positioned using elastic retaining rings F (76), G (79), H (81), and I (86) for the shaft holes. The four wheels span the wheel grooves A (23-11) and B (23-12) on the base plate 23. The guide rail (16) is fixed by screw assemblies A (45) and B (60). On the base plate (23), the slider (17) is slidably connected to the guide rail (16). The slider (17) can move along the guide rail (16). The stroke of the longitudinal telescopic rod (18) is 0-30mm. The fixed end of the longitudinal telescopic rod 18 is connected to the bracket (44) through the nut (48). The bracket (44) is fixed to the slider (17) through the screw assembly C (43) and the screw assembly D (49). The telescopic end of the longitudinal telescopic rod (18) is connected to the vertical shaft (32-5) of the base through the shaft hole. The longitudinal telescopic rod (18) can realize the longitudinal movement of the high temperature furnace along the axis of the ablation gun 2 through the telescopic movement, thereby changing the longitudinal distance between the high temperature furnace and the flame core of the ablation flame. It can be continuously adjusted from 0-30mm, thereby realizing the rapid heating of different target temperatures.

4. The ultra-high temperature transient thermal test system for heat-resistant materials according to claim 3, characterized in that, The furnace body includes an experimental chamber (31) and an end cap (28). The specific structure of the experimental chamber (31) is as follows: the inside of the cuboid box has three square cavities. The upper square cavity is used to place experimental samples and is called the sample chamber (31-1). The two lower square cavities are used to place solid / liquid media that can decompose or volatilize to produce gas at high temperatures and are called the environmental chambers (31-2). The side of the box is a square flange A (31-3) structure. The square flange A (31-3) has eight through holes around its perimeter. The experimental chamber (31) is connected by bolt assemblies G (61), H (62), I (63), J (64), K (65), and L (66). Bolt assembly M (67) and bolt assembly N (68) are connected to the square flange B (28-1) on the end cap (28), and the end face of the square flange A (31-3) has a sealing groove (31-4). The sealing groove (31-4) is equipped with a sealing ring (36) to achieve end face sealing. The top of the experimental chamber (31) is provided with a counterweight groove (31-5) with a pit structure for placing counterweight blocks, and has a waist-shaped handle hole (31-6). The outer walls of the experimental chamber (31) and the end cap (28) are both provided with a boss structure. Temperature measuring hole A (31-7) and temperature measuring hole B (28-4) are opened on the boss for placing thermocouples to test the temperature of the experimental chamber (31).

5. The ultra-high temperature transient thermal test system for heat-resistant materials according to claim 4, characterized in that, The pressure control module includes a base (32), a labyrinth seal structure (31-9), a labyrinth seal (55), a pressure relief channel (31-8), a fixed counterweight, and an adjustable counterweight. The pressure control module uses the gravity-based pressure limiting principle for pressure control. A stepped hole (32-6) is opened in the center of the upper part of the base (32). The labyrinth seal (55) is connected to the stepped hole (32-6) by an interference fit. A pressure relief channel (31-8) leading to the sample chamber is opened in the center of the lower part of the experimental chamber (31), and a labyrinth seal structure (31-9) is designed. This structure and the labyrinth seal (55) form a labyrinth seal. The weight of the furnace body and its connecting parts is used to maintain the gas pressure inside the experimental chamber (31). When the gas pressure inside the experimental chamber (31) exceeds the pressure generated by the total weight and atmospheric pressure, the gas pushes the chamber outward from the pressure relief port (31-8), the labyrinth seal fails, and the internal gas is depressurized. When the internal pressure is lower than the design pressure, the furnace body falls back, thereby using gravity to achieve pressure limitation. There are two guide holes (32-7) diagonally above the base (32), which are connected to the two guide columns (33) diagonally welded below the experimental chamber (31) through clearance fit, playing a guiding role when depressurizing. The furnace body together with its connecting parts constitutes the fixed counterweight of the pressure control module. The counterweight blocks placed in the counterweight groove (31-5) of the experimental chamber constitute the adjustable counterweight. By adjusting the total counterweight, the pressure regulation in the range of 0-6MPa can be achieved.

6. The ultra-high temperature transient thermal test system for heat-resistant materials according to claim 5, characterized in that, The intake system includes an intake pipe (26), a valve body (27), and a valve core (69). The intake pipe (26) is a hollow cylindrical structure. The intake pipe (26) and the valve body (27) are welded together. The conical cavity (27-1) on the valve body (27) is connected to the inner hole of the pipe (26). The conical valve core (69) is located inside the conical cavity (27-1). Two connecting holes are opened on the drum-shaped flange A (27-2) at the end of the valve body (27). The bolt assembly O (87) and the bolt assembly P (88) are connected to the downward-facing drum-shaped flange B (28-2) on the end cap (28). The end face of the drum-shaped flange B (28-2) is open. There is an annular groove, and an O-ring (89) is placed inside the annular groove to achieve end face sealing. The conical cavity (27-1) of the valve body is connected to the cavity of the experimental chamber through the inner hole (28-3) of the end cap. When the external gas is delivered from the inlet pipe (26), the conical valve core 69 is pushed upward by the gas. The gas enters the experimental chamber (31) through the inner hole (28-3) of the end cap, providing a specific atmosphere environment for the experimental chamber (31). When the internal pressure is greater than the inlet pressure, the internal gas pressure pushes the conical valve core 69 downward to block the inner hole of the pipe (26). O2 / N2 / Ar and other gases are introduced through the inlet system, which can realize the control of oxidizing, inert or reducing atmosphere.

7. The ultra-high temperature transient thermal test system for heat-resistant materials according to claim 6, characterized in that, The protective device includes side plate A (29), side plate B (30), top plate (4), rear plate A (14), and rear plate B (50). Side plate A (29), side plate B (30), rear plate A (14), and rear plate B (50) are tightly fitted into the square groove (23-13) of the bottom plate. Side plate A (29) and rear plate B (50) are fastened together by screws H (69), I (70), and J (71). The rear upright plate B (50) is fastened to the rear upright plate B (50) by screws K (72), screw L (73), and screw M (74). The top plate (4) is placed above the side upright plate A (29), side upright plate B (30), and rear upright plate B (50), and is fastened to the three protective plates by screws A (10), screw B (11), screw C (12), screw D (19), screw E (21), screw F (22), and screw G (25). The rear upright plate B (50) adopts a gantry structure.

8. An experimental method for an ultra-high temperature transient thermal test system for heat-resistant materials, based on the ultra-high temperature transient thermal test system for heat-resistant materials as described in claim 7, characterized in that, The specific steps are as follows: The ignition procedure is initiated, and after the oxyacetylene flame stabilizes, the experimental chamber is driven by a lateral motion device to move at a constant speed to the ablation position. The experimental chamber is then moved from the low-temperature zone around the flame periphery to the high-temperature zone at the flame core by a longitudinal motion device, so that the surface temperature of the material can be rapidly increased from room temperature to the target temperature, thus achieving transient thermal shock testing.

9. The experimental method of the ultra-high temperature transient thermal test system for heat-resistant materials according to claim 8, characterized in that, The specific steps include the following: Heat source parameter graded control: In the preheating stage, when the room temperature is 500℃, the material is placed in the outer flame area of ​​the flame, and the temperature of the outer flame is used to achieve the basic temperature rise; In the rapid heating stage, when the temperature rises to 500℃-3000℃, the material is moved to the inner flame and flame core area of ​​the flame, and the high temperature gas is used to achieve rapid heating; Thermocouples are used to monitor the surface temperature of the material in real time, and the distance between the material and the flame is dynamically adjusted to control the target temperature; Solid / liquid media are pre-placed in the environmental chamber and decomposed or volatilized at high temperatures to create a specific atmosphere; combined with the air intake system, O2 / N2 / Ar gases are introduced to achieve the control of oxidizing, inert, or reducing atmospheres; and the airflow direction is controlled by a one-way valve to quickly construct a specific experimental atmosphere environment. The gas generated by the pyrolysis of materials or by a pre-set chemical reaction module is used to create high pressure in a sealed experimental chamber. The pressure is regulated within the range of 0-6MPa by a pressure control module. The pressure control module uses the principle of gravity-based pressure limiting and achieves quantitative control of pressure through adjustable counterweights to ensure the stability of the high-pressure environment.

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