Ceramic corrosion condition inspection testing device

Abstract

This invention relates to a ceramic corrosion testing and detection device, belonging to the field of ceramic testing technology. It includes a housing with multiple independent sub-compartments, each sub-compartment connected to a pressurizing pipe. All pressurizing pipes are connected in parallel to a main pipeline and equipped with solenoid valves. Each sub-compartment has a pressure tap and is connected to a pressure tapping pipe, and is equipped with an automatic control component. The automatic control component has multiple sliding cavities, each containing a piston with an elastic seal. The piston is connected to an insulating rod via a sliding column, and a first and second conductor are fixed on the rod. The device has multiple guide rods aligned in a straight line, with gaps between adjacent guide rods for the insertion of the first conductor. A metal rod connected to the solenoid valve circuit is positioned above each guide rod. Under normal conditions, the second conductor is inserted into the gaps between the metal rods, keeping the solenoid valve open. When compressed air is introduced into the main pipeline, the piston moves with the pressure in the sub-compartments. When the pressure reaches the target level, the first conductor inserts into the gap between the guide rods, and the second conductor disengages, closing the solenoid valve to maintain pressure. Once all first conductors are in position, the monitoring equipment starts, achieving independent automatic pressure maintenance and synchronous monitoring of multiple compartments.

Description

Technical Field

[0001] This invention relates to the field of ceramic testing equipment technology, specifically to a device for inspecting and testing ceramic corrosion. Background Technology

[0002] Ceramic materials are widely used in chemical, metallurgical, aerospace, and construction industries due to their excellent high-temperature resistance, corrosion resistance, and wear resistance. Their corrosion resistance directly determines the service life, operational stability, and safety of related equipment. Therefore, it is crucial to conduct accurate inspection and testing of the corrosion status of ceramic materials.

[0003] The corrosion resistance of ceramics varies under different special conditions. Currently, ceramic materials can be tested under special environments such as high pressure, high temperature, acid and alkali, and high salinity. The core function is to verify their environmental adaptability, ensure service safety, guide material selection and process optimization, and predict service life. It is a key quality checkpoint for high-end ceramics to move from the laboratory to industrial applications. Among them, as one of the core test performances, the corrosion resistance of ceramics under different pressure environments is a prerequisite for ensuring structural safety and simulating the compressive strength, creep resistance, and impact resistance of ceramics under high pressure. Under different pressures, defects such as pores, microcracks, and density in ceramics are detected. These defects will rapidly expand under high pressure and lead to failure. Detection can directly screen out unqualified products. Therefore, the testing of the corrosion resistance of ceramics under special pressure environments often involves testing the above performance under different pressures. Therefore, how to automatically control the pressure and link it with the test start is very important and is a realistic and feasible means to improve the testing efficiency.

[0004] In addition, existing ceramic corrosion testing equipment can generally only test a single set of samples, resulting in low testing efficiency and difficulty in meeting the needs of simultaneous testing of batch samples. Therefore, it is even more impossible to automatically conduct comparative tests under different environmental parameters at the same time, which limits its practicality and adaptability.

[0005] Finally, the existing corrosion resistance testing devices have imperfect monitoring logic and lack a real-time monitoring and feedback adjustment mechanism for the corrosive environment. When the simulated environment becomes abnormal (such as the dissipation of corrosive droplets), the corrosive atomization environment cannot be restored in time, which further affects the authenticity and scientific validity of the test data. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a ceramic corrosion testing device to solve the problem that multiple ceramic samples cannot be tested simultaneously under different pressure test conditions in the prior art.

[0007] This invention is achieved through the following technical solution: A ceramic corrosion testing device includes a housing for holding ceramic samples, with multiple spaced-apart sub-compartments for each sample. Each sub-compartment is connected to a pressurization pipe for pressurizing the sub-compartment. All pressurization pipes are connected in parallel to a main pipe, and each pressurization pipe is equipped with a solenoid valve. Each sub-compartment has a pressure tap on one side, connected to one end of a pressure tapping pipe. The device also includes an automatic control component for controlling the pressurization of the sub-compartments. This component includes a cuboid body with several evenly spaced sliding cavities along its length, each connected to a corresponding pressure tapping pipe. A piston is vertically and elastically slidably and sealed within each cavity. A sliding column is fixed to the end of the piston facing away from the pressure tapping pipe. The sliding column slidably extends out of the body and connects to an insulating rod, moving the insulating rod along with it. Block-shaped first guides are fixed at intervals on the insulating rod. The device includes a body and a strip-shaped second conductor; it also includes several conductive guide rods on the same straight line, with gaps between adjacent guide rods allowing the first conductor to slide into them, and a monitoring device for monitoring experimental parameters is activated when all the first conductors are inserted into the corresponding gaps; above each pair of adjacent guide rods is a pair of metal rods connected to the switching circuit of the solenoid valve, with the gap between two adjacent metal rods facing the gap, and under normal conditions, the second conductor is slidably inserted into the gap to keep the corresponding solenoid valve open; when compressed air is injected into the main pipeline, each piston slides in the corresponding slide cavity, and when the pressure of the corresponding sub-compartment reaches a set value, the piston in the sub-compartment causes the first conductor to be inserted into the gap, and the second conductor slides out of the gap to close the solenoid valve, so that the corresponding first conductor remains inserted in the gap.

[0008] Furthermore, the bottom of the sub-compartment is a convex cone structure with the small end facing upwards. Several spray pipes for spraying environmental simulation liquid are coaxially installed on the top of the cone structure, and the spray holes on the spray pipes are vertically set with the spray holes facing upwards.

[0009] Furthermore, an annular water collection trough is coaxially provided at the bottom edge of the conical structure and is located at the bottom of the sub-compartment. The bottom of the water collection trough is connected to a drain pipe, and the drain pipe is connected to the spray pipe via a circulation pump after passing through a filter assembly.

[0010] Furthermore, the sub-compartment is equipped with several sets of monitoring elements for monitoring water mist. When the monitoring elements detect that the water mist has disappeared, the circulation pump installed on the input pipe of the spray pipe is started to spray the set water mist into the corresponding sub-compartment.

[0011] Furthermore, the monitoring element includes a light emitter and a light receiver, which are respectively installed on two opposite side walls in the upper space of the sub-compartment. When the fog between them disappears, the light signal received by the light receiver increases to a set amount and remains there. At this time, the monitoring element considers that the fog in its monitoring area has disappeared.

[0012] Furthermore, a rotatable, perforated mounting plate for mounting ceramic samples is installed in the center of the sub-compartment. Several clamping arms are radially slidably mounted on the mounting plate. When all the clamping arms come together, they clamp the ceramic samples onto the mounting plate. One side of the mounting plate is fixed to a rotating shaft. The rotating shaft rotates and seals through the wall of the sub-compartment and is then connected to the main shaft of a rotary motor installed on the outside of the housing.

[0013] Furthermore, a connecting post is fixed to the center of the end of the mounting plate, and several guide rods are fixed radially on the side of the connecting post; one end of the clamping arm is fixed to a U-shaped carriage, and one side of the mounting plate is located in the opening of the carriage. One end of the carriage is fixed perpendicularly to one end of the clamping arm, and the other end is slidably fitted to the free end of the guide rod. A return spring is sleeved on the guide rod between the carriage and the connecting post. The two ends of the return spring are respectively connected to the end of the carriage and the side of the connecting post. Under normal conditions, the return spring is in a stretched state, so that the bottom of the side opening of the carriage abuts against the side of the mounting plate.

[0014] Furthermore, a lead screw is rotatably installed inside the clamping arm, and a slider is threaded onto the lead screw. A pressure arm is fixed to the side of the slider and slidably installed on the side of the clamping arm. The pressure arm is installed perpendicular to the clamping arm. When the lead screw rotates, the pressure arm moves closer to or away from the mounting plate. A knob is fixed to one end of the lead screw that protrudes from the end of the clamping arm. The knob can be axially pressed and fixed by a fastening cap threaded onto the end of the clamping arm. A preload spring is coaxially sleeved on the lead screw. The two ends of the preload spring are connected to the side of the slider and the inner wall of the clamping arm, respectively, and are always in a compressed state.

[0015] Furthermore, the first conductor and the second conductor are each slidably mounted on the insulating rod and fastened to their corresponding positions on the insulating rod by locking screws; the insulating rod is also provided with several circles of scale lines indicating length along its axial direction; the end edges of each conductor are chamfered.

[0016] Furthermore, a limiting ring is axially slidably installed inside the sliding cavity. The limiting ring is installed inside the sliding cavity via an adjusting screw, and a cylindrical spring connects the limiting ring to the piston. The first conductor and the second conductor are both cylindrical structures coaxial with the insulating rod, and the end faces of the two adjacent guide rods and the metal rod are concave arc surfaces, so as to fit against the cylindrical side surface of the corresponding conductor. An adjusting bolt is coaxially threadedly installed inside one end of the sliding column that protrudes from the housing. The insulating rod is coaxially fixed in the center of the nut of the adjusting bolt. A contact spring is provided between the end of the threaded section of the adjusting bolt and the bottom of the threaded blind hole of the sliding column to pre-tighten the adjusting bolt.

[0017] The beneficial effects of this invention are as follows: This ceramic corrosion testing device can simultaneously test multiple samples, improving testing efficiency and enhancing testing flexibility and versatility. Specifically: 1. This testing and inspection device divides the chamber into multiple independent sub-compartments, each of which can hold ceramic samples individually, enabling simultaneous testing of multiple sets of samples. Furthermore, the pressure parameters of each sub-compartment can be set independently to study the corrosion resistance of ceramics under different pressures. This allows for parallel testing of multiple sets of samples under the same environment, as well as simultaneous comparative testing of different environmental indicators (such as different pressures), adapting to various testing needs and enhancing the flexibility of the device.

[0018] 2. This invention can precisely control the pressure environment, ensuring accurate testing. Each sub-compartment is individually connected to a pressurization pipe and equipped with a solenoid valve. All pressurization pipes are connected in parallel to the main pipeline, enabling independent pressurization control of each sub-compartment. Combined with the design of the pressure tapping pipe and the automatic control component, the pressure status of each sub-compartment can be monitored in real time. When the pressure in a sub-compartment reaches the set value, the corresponding solenoid valve automatically closes, maintaining pressure stability. Simultaneously, through the cooperation of the first conductor and guide rod, the selected monitoring equipment is only activated after all sub-compartments have reached the set pressure, avoiding deviations in test data caused by substandard pressure in some samples, significantly improving the accuracy of the test results. Furthermore, the design of the limit ring, cylindrical spring, and adjusting screw in the automatic control component of this invention allows adjustment of the piston's travel and pressure trigger threshold, precisely matching the pressure setting requirements of different sub-compartments, further improving the accuracy of pressure control.

[0019] In this invention, the pressurizing medium can be a mixed gas containing salt, alkali, and acid mist to simulate the pressurized and corrosive environment. Furthermore, by combining this with a specially installed spray pipe within the sub-compartment, the complex corrosive environment encountered in actual ceramic material applications can be accurately simulated, solving the problem of limited environmental simulation in existing devices. The monitoring elements (light emitter and light receiver) used can monitor the water mist status within the sub-compartment in real time. When the water mist level falls below a set standard, the circulating pump is automatically triggered to replenish the simulated environmental liquid, ensuring that the ceramic sample remains within the set corrosive environment and guaranteeing the stability and reliability of the testing process.

[0020] 3. This invention can significantly reduce experimental costs when simulating corrosive environments: the combination of the water collection tank at the bottom of the sub-compartment, the drain pipe, the filter assembly, and the circulation pump forms a circulation loop for the environmental simulation liquid. The environmental simulation liquid can be reused after filtration, effectively reducing resource waste and lowering experimental costs. At the same time, the filter assembly can remove impurities from the simulation liquid, preventing impurities from affecting the stability of the corrosive environment and the accuracy of the test results.

[0021] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0022] Figure 1 This is a partial cross-sectional view of the internal structure of the ceramic corrosion inspection and testing device of the present invention. Figure 2 This is a schematic diagram of the appearance of the automatic control component; Figure 3 This is a cross-sectional view of the automatic control component; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 Diagram showing the relative positions of the first and second conductors when the solenoid valve is closed and the monitoring equipment starts up; Figure 6 for Figure 1 A top-view cross-section of the neutron chamber; Figure 7 A schematic diagram showing the clamping arm being mounted on a mounting plate; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 This is a schematic diagram of a specific installation of the first conductor and the insulating rod.

[0023] In the diagram: 1. Box body; 2. Sub-compartment; 3. Pressurization pipe; 4. Solenoid valve; 5. Main pipe; 6. Pressure tap; 7. Frustum structure; 8. Spray pipe; 9. Water collection tank; 10. Drain pipe; 11. Body; 12. Slide cavity; 13. Cylindrical spring; 14. Circulation pump; 15. Insulating rod; 16. First conductor; 17. Second conductor; 18. Metal rod; 19. Gap; 20. Adjusting screw; 21. Adjusting bolt; 22. Mounting plate; 23. Clamping arm; 24. Slide; 25. Guide rod; 26. Reset spring; 27. Connecting column; 28. Rotating shaft; 29. ​​Pressure arm; 30. Slider; 31. Pre-tightening spring; 32. Lead screw; 33. Knob; 34. Fastening cover; 35. Guide rod; 36. Slide column; 37. Pressure tap; 38. Piston; 39. Compartment door; 40. Locking screw; 41. Scale line; 42. Wire; 43. Light emitter; 44. Light receiver; 45. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Please see Figure 1 This invention provides a technical solution: This embodiment provides a ceramic corrosion testing device, which has a box 1 for placing ceramic samples. The box 1 is divided into multiple independent sub-compartments 2 by a partition structure. Each sub-compartment 2 is used to hold a ceramic sample alone, realizing the function of simultaneous testing of multiple samples. Each sub-compartment 2 is individually connected to a pressure pipe 3. One end of all pressure pipes 3 is connected to the corresponding sub-compartment 2, and the other end is connected in parallel to the same main pipe 5. A solenoid valve 4 is fixedly installed on each pressure pipe 3 to control the opening and closing of the corresponding pressure pipe 3. A pressure tapping hole 6 is opened on one side wall of each sub-compartment 2. The pressure tapping hole 6 is sealed to one end of a pressure tapping pipe 38. The other end of the pressure tapping pipe 38 extends to the outside of the box 1 and is connected to the automatic control component, so that the testing device will start formal operation and monitoring and record parameters only when the pressure of all sub-compartments 2 reaches the standard. Specifically, in this embodiment, as Figures 2-3Specifically, it also includes the aforementioned automatic control component for controlling the pressurization process of sub-compartment 2. The automatic control component has a cuboid body 11 with chamfered edges at both ends. The body 11 has a number of sliding cavities 12 evenly spaced along its length. The number of sliding cavities 12 corresponds one-to-one with the number of sub-compartments 2. One end of each sliding cavity 12 is connected to the end of the corresponding pressure tapping tube 38 away from the sub-compartment 2. Each slide cavity 12 is vertically fitted with a piston 39. The piston 39 and the inner wall of the slide cavity 12 are elastically slidably sealed to ensure that the gas in the slide cavity 12 will not leak from the side contact joint of the piston 39. A sliding column 37 is fixedly connected to the end of the piston 39 away from the pressure tapping tube 38. The end of the sliding column 37 away from the piston 39 slides through the body 11 of the automatic control component, and the end of the sliding column 37 that extends out of the body 11 is fixedly connected to an insulating rod 15. When the piston 39 slides in the slide cavity 12, it can drive the sliding column 37 to move synchronously, and thus move the insulating rod 15 in a straight line. Block-shaped first conductors 16 and strip-shaped second conductors 17 are fixedly fixed along the length of the insulating rod 15. The number of first conductors 16 and second conductors 17 corresponds one-to-one with the number of sub-compartments 2. In the above design, the automatic control component also includes several conductive guide rods 36. All guide rods 36 are on the same straight line, and a gap 19 is left between each adjacent guide rod 36. The size of the gap 19 matches the first conductor 16, allowing the first conductor 16 to slide and be inserted. In use, when all the first conductors 16 are inserted into the corresponding gap 19 between adjacent guide rods 36, all guide rods 36 are connected in series and form a conductive rod. This rod serves as the conductive element of the power supply circuit of the monitoring equipment for monitoring ceramic corrosion experiments, causing the power supply circuit to close automatically. That is, the specific monitoring equipment is automatically turned on and begins to perform experimental monitoring. For example, the monitoring equipment includes a timer to start timing when the pressure reaches the standard, thereby judging the durability and reliability of the ceramic sample under the corresponding pressure environment. Furthermore, to stop pressurization when the pressure in sub-compartment 2 reaches the target level, a pair of metal rods 18 are installed directly above each pair of adjacent guide rods 36. These metal rods 18 are connected to the switching circuit of the solenoid valve 4 on the corresponding pressurization pipe 3. A gap 20 is left between two adjacent metal rods 18, and this gap 20 is directly opposite the gap 19 between adjacent guide rods 36. Under normal conditions, such as... Figure 4 The second conductor 17 is slidably inserted into the gap 20, keeping the corresponding solenoid valve 4 in a normally open state. During operation, when compressed air is injected into the main pipe 5, each sub-compartment 2 is pressurized. The compressed air enters the corresponding sub-compartment 2 through each pressurization pipe 3, and the pressure inside the sub-compartment 2 gradually increases. This pressure is transmitted through the pressure tapping pipe 38 to the piston 39 in the corresponding sliding cavity 12, pushing the piston 39 to slide within the sliding cavity 12. When the pressure in a certain sub-compartment 2 reaches a set value, the piston 39 corresponding to that sub-compartment 2 drives the sliding column 37 and the insulating rod 15 to move, such as... Figure 5This causes the first conductor 16 corresponding to the sub-compartment 2 to be inserted into the gap 19 between adjacent guide rods 36, while the second conductor 17 slides out from the gap 20 between adjacent metal rods 18, causing the corresponding solenoid valve 4 to close. This keeps the pressure in the sub-compartment 2 stable, and the first conductor 16 remains inserted in the gap 19 so that when the pressure in other sub-compartments 2 reaches the standard, all guide rods 36 will be connected together to start the monitoring equipment and ensure that the monitoring equipment continues to work stably.

[0028] In the above embodiments, specifically, the pressurized medium can also be a mixed gas containing salt, alkali, and acid mist to simulate the corrosion resistance under specific pressure, acidity, alkalinity, and other special environments. It can be a corrosion resistance simulation test under the same special environmental conditions for multiple groups of ceramic samples, or a synchronous test for different special environmental indicators. For example, the pressure environments of each group of ceramic samples are different, and the pressure is inconsistent. When pressurizing, even if the pressure environment is different, it can be automatically generated, and the experiment timing will only officially start when all sub-compartments 2 reach the set pressure value.

[0029] In this embodiment, as Figure 1 Each sub-compartment 2 has an upward-protruding truncated cone structure 7 at its bottom, with the smaller end facing upwards and the larger end facing downwards, conforming to the bottom contour of the sub-compartment 2. At the top of the truncated cone structure 7, several coaxial spray pipes 8 are installed. These spray pipes 8 are used to spray environmental simulation liquid into the sub-compartment 2. This allows for the simulation of the corrosive environment of ceramic samples when compressed air is supplied solely through the pressurization pipe 3 without premixing the acid / alkali environmental simulation liquid. All spray holes on the spray pipes 8 are vertically aligned upwards to ensure that the environmental simulation liquid is evenly sprayed within the sub-compartment 2, creating the specific environment required for the ceramic sample and ensuring the accuracy of the corrosion test.

[0030] In this embodiment, as Figure 1 At the bottom edge of the truncated cone structure 7, a ring-shaped water collection tank 9 is coaxially arranged. This water collection tank 9 is located at the bottom of the sub-compartment 2 and is used to collect the environmental simulation liquid that drips after spraying in the sub-compartment 2. The bottom of the water collection tank 9 has an interface that is sealed to one end of a drain pipe 10. The other end of the drain pipe 10 is connected in sequence to a filter assembly (not shown in the figure) and a circulation pump 14. The output end of the circulation pump 14 is sealed to the spray pipe 8 to form a circulation loop. After the environmental simulation liquid falls into the water collection tank 9, it flows into the filter assembly through the drain pipe 10. After filtering out impurities, it is transported back to the spray pipe 8 under the action of the circulation pump 14, realizing the recycling of the environmental simulation liquid and saving experimental costs.

[0031] In this embodiment, as Figure 1As shown, several sets of monitoring elements are installed inside each sub-compartment 2. These monitoring elements are used to monitor the state of the water mist formed by the spray within the sub-compartment 2, determine whether the water mist simulating a specific environment has disappeared, and ensure that the ceramic sample is always in the set corrosion environment. When the monitoring element detects that the water mist in the sub-compartment 2 has disappeared or the amount of water mist is lower than the set standard, for example, when the water mist disappears due to gravity after being dispersed for a period of time, the corresponding space of the sub-compartment 2 will allow the signal to pass through without obstruction, and a signal will be sent to the control module. The control module controls the circulation pump 14 installed on the input pipe of the spray pipe 8 to start. The circulation pump 14 delivers the environmental simulation liquid to the spray pipe 8 and sprays a set amount of water mist into the corresponding sub-compartment 2 until the water mist state reaches the set requirements, or after the set spray time, the circulation pump 14 stops working.

[0032] In this embodiment, as Figure 1 In this embodiment, each monitoring element consists of a light transmitter 44 and a light receiver 45. The light transmitter 44 and the light receiver 45 are respectively installed on two opposite side walls of the upper space of the sub-compartment 2, with their transmitting and receiving ends facing each other to form a detection optical path. Under normal conditions, the water mist in the sub-compartment 2 will block the light signal emitted by the light transmitter 44, and the light signal intensity received by the light receiver 45 will be low. When the mist in the sub-compartment 2 disappears, the light signal is no longer significantly blocked, and the light signal intensity received by the light receiver 45 will increase to a set amount and remain stable. At this time, the monitoring element can determine that the mist environment in its monitoring area has disappeared and send a signal to the control module to start the circulation pump 14 to regenerate a special atomized environment such as acids, alkalis, and salts.

[0033] In this embodiment, as Figure 1 Each sub-compartment 2 has a mounting plate 23 for fixing ceramic samples installed at its center, with a compartment door 40 on the corresponding compartment wall. The mounting plate 23 has a hollow structure, ensuring uniform contact between the environmental simulation liquid and gas on the ceramic sample surface, and the mounting plate 23 can rotate around its own axis. (See also...) Figure 7Several clamping arms 24 are slidably mounted on the mounting plate 23 along its radial direction. All clamping arms 24 are evenly distributed in a ring. When all clamping arms 24 are close together, they can clamp and fix the ceramic sample in the center of the mounting plate 23, preventing the sample from shifting during the experiment. One side of the center of the mounting plate 23 is fixedly connected to one end of a rotating shaft 29. The end of the rotating shaft 29 away from the mounting plate 23 rotates and seals through the wall of the sub-compartment 2, extending to the outside of the box 1. This end is connected to the main shaft of a rotary motor installed on the outside of the box 1 through a transmission structure. When the rotary motor starts, it can drive the rotating shaft 29 and the mounting plate 23 to rotate synchronously, thereby driving the ceramic sample to rotate, ensuring that all surfaces of the sample can uniformly contact the corrosive environment and improve the accuracy of the inspection and detection. In addition, another key function of the above design is that when the spray pipe 8 needs to spray, the rotary motor rotates, so that the mounting plate 23 is in a vertical state, avoiding excessive obstruction of water mist and affecting the generation efficiency of the atomization environment.

[0034] In this embodiment, as Figure 7 As shown, a connecting post 28 is fixed at the center of the end of the mounting plate 23. Several guide rods 36, each connected to a wire 43, are fixed radially to the side of the connecting post 28. The number of guide rods 36 corresponds one-to-one with the number of clamping arms 24, and the guide rods 36 and clamping arms 24 are perpendicular to each other. One end of each clamping arm 24 is fixedly connected to a U-shaped slide 25. One edge of the mounting plate 23 is located inside the opening of the slide 25. One end of the slide 25 is perpendicularly fixed to one end of the clamping arm 24, and the other end of the slide 25 has a sliding hole (not shown in the figure) for the free end of the corresponding guide rod 36 to slide through, achieving a sliding connection between the slide 25 and the guide rod 36, guiding the slide 25 to slide radially along the mounting plate 23. A return spring 27 is fitted onto the guide rod 36 between the slide 25 and the connecting post 28. One end of the return spring 27 is fixedly connected to the end of the slide 25, and the other end is fixedly connected to the side of the connecting post 28. Under normal conditions, the reset spring 27 is in a stretched state. Under the action of tension, the bottom of the opening of the slide 25 is in close contact with the side of the mounting plate 23, thereby driving the clamping arm 24 to be stably kept in the preparatory state of clamping the ceramic sample.

[0035] In this embodiment, as Figures 7-8As shown, a lead screw 33 is rotatably mounted inside each clamping arm 24. The axis of the lead screw 33 is parallel to the length direction of the clamping arm 24. A slider 31 with an internal threaded hole is threadedly mounted on the lead screw 33. A pressure arm 30 is fixed to the outer side of the slider 31 and is slidably mounted on the side of the clamping arm 24, with the pressure arm 30 and the clamping arm 24 being perpendicular to each other. When the lead screw 33 rotates around its own axis, the slider 31 moves along the length direction of the lead screw 33, thereby driving the pressure arm 30 to move closer to or away from the mounting plate 23, achieving further auxiliary clamping or loosening of the ceramic sample. In addition, a knob 34 is fixed to the end of the lead screw 33 that protrudes from the end of the clamping arm 24 in this embodiment. The knob 34 is used to drive the lead screw 33 to rotate. A fastening cap 35 is threadedly mounted on the end of the clamping arm 24. The fastening cap 35 can press the knob 34 axially, fixing the knob 34 and the lead screw 33, preventing the lead screw 33 from rotating during the experiment, and ensuring that the pressure arm 30 is in the clamped position. A preload spring 32 is also coaxially sleeved on the lead screw 33. One end of the preload spring 32 is fixedly connected to the side of the slider 31, and the other end is fixedly connected to the inner wall of the clamping arm 24. The preload spring 32 is always in a compressed state, which can apply a preload force to the slider 31 toward the center of the mounting plate 23, ensuring that the pressure arm 30 can stably clamp the ceramic sample and reduce shaking during the movement.

[0036] In this embodiment, as Figure 9 In specific manufacturing, both the first conductor 16 and the second conductor 17 are mounted on the insulating rod 15 via a sliding structure. Both can slide along the axial direction of the insulating rod 15 to adjust their positions. Once the positions are adjusted, the locking screws 41 are tightened to secure them to their corresponding positions on the insulating rod 15. This facilitates adjusting the conductor positions according to experimental requirements, ensuring that the pressure of the detection environment set in the corresponding sub-compartment 2 is matched with the timely closure of the solenoid valve 4, and that all guide rods 36 are connected in series after the pressure in all sub-compartments 2 reaches the target, achieving a perfect match. By adjusting the positions of each conductor on its respective insulating rod 15, the above objectives can be achieved, improving the flexibility and versatility of this detection device. For more intuitive adjustment, several graduation lines 42 can be provided along the axial direction of the insulating rod 15. The graduation lines 42 are used to visually indicate the installation positions of the first conductor 16 and the second conductor 17, facilitating precise adjustment by the operator. In addition, the ends of the first conductor 16 and the second conductor 17 are chamfered to avoid sharp edges at the ends of the conductors, prevent scratches on the guide rod 36, metal rod 18 or insulating rod 15 during sliding, and also allow the conductors to be inserted into or slid out of the corresponding gaps 19 and 20 more smoothly.

[0037] In this embodiment, as Figure 3As shown, a limiting ring is axially slidably installed inside each sliding cavity 12. The limiting ring is installed in the sliding cavity 12 via an adjusting screw 21. Rotating the adjusting screw 21 can adjust the axial position of the limiting ring in the sliding cavity 12. A cylindrical spring 13 is fixedly connected between the limiting ring and the piston 39. The cylindrical spring 13 is used to apply an elastic force to the piston 39 and can assist the piston 39 in resetting. The first conductor 16 and the second conductor 17 both adopt a cylindrical structure coaxial with the insulating rod 15. The end faces of two adjacent guide rods 36 and the end faces of two adjacent metal rods 18 are set as concave arc surfaces. The curvature of the arc surface matches the curvature of the cylindrical side surface of the first conductor 16 and the second conductor 17, so that when the first conductor 16 is inserted into the gap 19 between adjacent guide rods 36, it can fit tightly with the arc surface of the guide rod 36. When the second conductor 17 is inserted into the gap 20 between adjacent metal rods 18, it can also fit tightly with the arc surface of the metal rod 18, ensuring the stability of the conductive contact. In specific manufacturing, a threaded blind hole is opened inside one end of the sliding column 37 that protrudes from the housing 1. An adjusting bolt 22 is coaxially threaded and installed in the blind hole. An insulating rod 15 is coaxially fixed in the center of the nut of the adjusting bolt 22. A contact spring is provided between the threaded end of the adjusting bolt 22 and the bottom of the threaded blind hole. The contact spring is always in a compressed state, applying a preload to the adjusting bolt 22 to ensure a stable connection between the adjusting bolt 22 and the sliding column 37. In the above embodiment, the position adjustment method of the limiting ring can change the initial compression of the cylindrical spring 13 to change the travel of the insulating rod 15 under different pressures in the sub-compartment 2. This better matches the travel of the insulating rod 15 of other sub-compartments 2, or the first conductor 16 and the second conductor 17, ensuring that when the pressure of all sub-compartments 2 reaches their respective set values, their corresponding solenoid valves 4 also automatically close. At this time, all conductors and guide rods 36 combine into a single conductive rod, enabling the relevant monitoring equipment to start.

[0038] In the above embodiments, the monitoring equipment is not particularly limited. Specifically, it can be a series of existing devices or components adapted to monitoring needs. Besides the aforementioned timer activation, it could also be the activation of a video monitoring module, or a combination of both, or other conventional monitoring methods. The aim is to determine that all sub-compartments 2 have reached their respective corresponding pressure environments before formal testing begins. Furthermore, when using a video monitoring module, it can be designed so that when the monitoring element detects the disappearance of the atomization environment within the sub-compartment 2, the video monitoring module takes a picture or records video, saves it, and remotely transmits it to a designated terminal for review by testing personnel.

[0039] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A ceramic corrosion testing and detection device, comprising a housing (1) for holding ceramic samples, characterized in that, The box (1) is provided with multiple sub-compartments (2) for placing ceramic samples. Each sub-compartment (2) is also connected to a pressure pipe (3) connected in parallel to a main pipe (5). Each pressure pipe (3) is equipped with a solenoid valve (4). Each sub-compartment (2) has a pressure tapping hole (6) connected to the pressure tapping pipe (38). It also includes an automatic control component for controlling the pressurization of the sub-compartment (2); The self-control component includes a body (11), which has a plurality of evenly spaced sliding cavities (12) that are connected to pressure tapping tubes (38) respectively. A piston (39) is vertically and elastically slidably and sealed in each sliding cavity (12). A sliding column (37) is fixed to one end of the piston (39) away from the pressure tapping tube (38). The sliding column (37) slides out of the body (11) and is connected to an insulating rod (15) so as to move the insulating rod (15) together. A block-shaped first conductor (16) and a strip-shaped second conductor (17) are fixed at intervals on the insulating rod (15). It also includes several conductive collinearly mounted guide rods (36), with gaps (19) between adjacent guide rods (36) that allow the first conductor (16) to slide into the gap, and when all the first conductors (16) are inserted into the corresponding gaps (19), the monitoring equipment for monitoring the experiment is turned on; above each pair of adjacent guide rods (36) there is a pair of metal rods (18) connected to the switching circuit of the solenoid valve (4), and the gap (20) between two adjacent metal rods (18) is directly opposite the gap (19). Under normal conditions, a second conductor (17) is slidably inserted into the gap (20) so that the corresponding solenoid valve (4) is normally open; When compressed air is injected into the main pipe (5), each piston (39) slides in the corresponding slide cavity (12). When the pressure of the corresponding sub-compartment (2) reaches the set value, the piston (39) in the sub-compartment (2) causes the first conductor (16) to be inserted into the gap (19), and the second conductor (17) slides out of the gap (20) to close the solenoid valve (4), so that the corresponding first conductor (16) remains in the inserted state in the gap (19).

2. The ceramic corrosion testing and detection device according to claim 1, characterized in that: The bottom of the sub-compartment (2) is a convex cone structure (7) with the small end of the cone structure (7) facing upward. Several spray pipes (8) for spraying environmental simulation liquid are coaxially installed on the top of the cone structure (7). The spray holes on the spray pipes (8) are vertically set facing upward.

3. The ceramic corrosion testing and detection device according to claim 2, characterized in that: At the bottom edge of the conical structure, there is a ring-shaped water collection trough (9) coaxially located at the bottom of the sub-compartment (2). The bottom of the water collection trough (9) is connected to the drain pipe (10). After passing through the filter assembly, the drain pipe (10) is connected to the spray pipe (8) via the circulation pump (14).

4. The ceramic corrosion testing and detection device according to claim 2, characterized in that: The sub-compartment (2) is equipped with several sets of monitoring elements for monitoring water mist. When the monitoring element detects that the water mist has disappeared, the circulation pump (14) installed on the input pipe of the spray pipe (8) is started to spray the set water mist into the corresponding sub-compartment (2).

5. The ceramic corrosion testing and detection device according to claim 4, characterized in that: The monitoring element includes a light transmitter (44) and a light receiver (45), which are respectively installed on two opposite side walls in the upper space of the sub-compartment (2). When the fog between them disappears, the light signal received by the light receiver (45) increases to a set amount and remains thereafter. At this time, the monitoring element considers that the fog in its monitoring area has disappeared.

6. The ceramic corrosion testing and detection device according to claim 1, characterized in that: A rotatable, hollow mounting plate (23) for mounting ceramic samples is installed in the center of the sub-compartment (2). Several clamping arms (24) are radially slidably mounted on the mounting plate (23). When all the clamping arms (24) come together, they clamp the ceramic samples onto the mounting plate (23). One side of the mounting plate (23) is fixed to a rotating shaft (29). The rotating shaft (29) rotates and seals through the wall of the sub-compartment (2) and is then connected to the main shaft of a rotary motor installed on the outside of the housing (1).

7. The ceramic corrosion testing and detection device according to claim 6, characterized in that: A connecting post (28) is fixed at the center of the end of the mounting plate (23), and several guide rods (36) are fixed radially on the side of the connecting post (28). One end of the clamping arm (24) is fixed to the U-shaped slide (25), and one side of the mounting plate (23) is located in the opening of the slide (25). One end of the slide (25) is fixed perpendicularly to one end of the clamping arm (24), and the other end is slidably fitted to the free end of the guide rod (36). A return spring (27) is sleeved on the guide rod (36) between the slide (25) and the connecting post (28). The two ends of the return spring (27) are respectively connected to the end of the slide (25) and the side of the connecting post (28). Under normal conditions, the return spring (27) is in a stretched state so that the bottom of the side opening of the slide (25) abuts against the side of the mounting plate (23).

8. The ceramic corrosion testing and detection device according to claim 7, characterized in that: A lead screw (33) is rotatably installed inside the clamping arm (24). A slider (31) is threaded onto the lead screw (33). A pressure arm (30) is fixed to the side of the slider (31) and slidably installed on the side of the clamping arm (24). The pressure arm (30) is installed perpendicular to the clamping arm (24). When the lead screw (33) rotates, the pressure arm (30) moves closer to or away from the mounting plate (23). A knob (34) is fixed to one end of the lead screw (33) that protrudes from the end of the clamping arm (24). The knob (34) can be axially pressed and fixed by the fastening cap (35) threaded onto the end of the clamping arm (24). A preload spring (32) is coaxially sleeved on the lead screw (33). The two ends of the preload spring (32) are respectively connected to the side of the slider (31) and the inner wall of the clamping arm (24), and are always in a compressed state.

9. The ceramic corrosion testing and detection device according to claim 1, characterized in that: The first conductor (16) and the second conductor (17) are each slidably mounted on the insulating rod (15) and fastened to the corresponding positions on the insulating rod (15) by locking screws (41); the insulating rod (15) is also provided with several circles of scale lines (42) indicating the length along its axial direction; the end edges of each conductor are chamfered.

10. The ceramic corrosion testing and detection device according to claim 1, characterized in that: A limiting ring is axially slidably installed inside the sliding cavity (12). The limiting ring is installed inside the sliding cavity (12) via an adjusting screw (21). A cylindrical spring (13) is connected between the limiting ring and the piston (39). The first conductor (16) and the second conductor (17) are both cylindrical structures coaxial with the insulating rod (15), and the end faces of the two adjacent guide rods (36) and the metal rod (18) are concave arc surfaces, so as to fit against the cylindrical side of the corresponding conductor. The sliding column (37) is threadedly fitted with an adjusting bolt (22) through one end of the box (1). The insulating rod (15) is coaxially fixed in the center of the nut of the adjusting bolt (22). A contact spring is provided between the end of the threaded section of the adjusting bolt (22) and the bottom of the threaded blind hole of the sliding column (37) to pre-tighten the adjusting bolt (22).

Images