A corrosion test equipment for ultra-high temperature ceramic materials
By designing an ultra-high temperature ceramic material corrosion testing equipment that includes fixed seats, test components and adjustment components, the problem of lack of versatility of existing equipment is solved, and the switching and sealing effects of multiple test methods are achieved, reducing the testing cost and Improves the universality of the device.
Patent Information
- Application Number
- CN202410426532.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2044-04-10
AI Technical Summary
Most of the existing ultra-high temperature ceramic material testing equipment can only be used in one or two test methods, which lacks versatility, resulting in high cost of purchasing laboratory equipment and low universality of equipment.
An ultra-high temperature ceramic material corrosion testing equipment is designed, including fixing seats, testing components and adjustment components. The test assembly enables switching of different test methods through the test cover, the moving cover and the end tube. The adjustment assembly enables the position adjustment and sealing of the cover through the top cover, the traction cable and the air pump.
The equipment can adapt to different test needs by changing the test method and liquid type, reduce the testing cost, improve the universality of the device and sealing effect.
Smart Images
Figure CN118090578B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of experimental equipment, and more specifically, to an ultra-high temperature ceramic material corrosion testing device. Background Art
[0002] Ultra-high temperature ceramics mainly refer to a type of ceramics that can be used above 2000°C. They have the characteristics of high melting point, high hardness, high thermal conductivity, good thermal shock resistance, and moderate thermal expansion coefficient. They are a high-quality material that mainly includes borides, carbides and their composites. Since they are usually used in extreme environments, the corrosion resistance of the material is also one of the important indicators of ultra-high temperature ceramics.
[0003] However, there are four main methods for corrosion resistance testing of ultra-high temperature ceramic materials. Different testing methods are used according to the use environment of the test object. Most of the existing testing equipment can only be used in one or two testing methods of the material. There is a lack of a more universal equipment for testing, which increases the equipment purchase cost of the laboratory and reduces the universality of the device. Summary of the invention
[0004] The present invention provides an ultra-high temperature ceramic material corrosion testing device to solve the problem that most of the testing devices in the prior art can only be used in one or two testing methods of the material, lack a universal device for testing, increase the equipment purchase cost of the laboratory, and reduce the universality of the device.
[0005] In order to achieve the above object, the present invention provides the following technical solutions:
[0006] A corrosion testing device for ultra-high temperature ceramic materials comprises a fixed seat, a pair of connecting blocks are arranged on the fixed seat, a testing assembly is arranged between the two connecting blocks, the testing assembly comprises a testing cover rotatably connected between the two connecting blocks, a specimen is clamped on one end of the testing cover, a movable cover is slidably connected to the other end of the testing cover via a slider, the movable cover is clamped on the free end of the specimen, a top cover is slidably clamped on the movable cover and the testing cover, the top cover is connected to a crossbeam via an adjusting assembly, the crossbeam is connected to a column arranged on the fixed seat via a rotating assembly, and the free ends of the testing cover and the movable cover are both connected to end tubes.
[0007] Preferably, the free ends of the two end tubes open vertically upward, the opening height is higher than the highest height of the inner cavity of the test cover, and the bottom end of the test cover is connected to an overflow valve through a pipeline.
[0008] Preferably, the adjustment assembly includes a pair of top frames arranged on the top cover, a first spring is arranged in the top frame, a side plate is connected to the top end of the first spring, both side plates are slidably clamped in the top frame, the two side plates are connected by a cross beam, a mounting plate is arranged at the top end of the cross beam, a winder is connected to the top end of the mounting plate, both sides of the winder are connected to the inner bottom wall of the top frame through traction cables, a guide wheel is hinged on the top end of the top frame through a connecting frame, and the two traction cables are respectively clamped on the two guide wheels.
[0009] Preferably, the rotating assembly includes an arc-shaped plate arranged on one side of the cross beam, a first connecting plate is arranged at the free end of the arc-shaped plate, the arc-shaped plate is slidably clamped on the top of the column, the first connecting plate is connected to the second connecting plate arranged at the top of the column through a second spring, an end plate is arranged at the top of the column, the end plate is connected to one end of the arc-shaped plate through the compression airbag, one end of the compression airbag is connected to an air pump through an air guide tube, and the air pump is arranged on the column.
[0010] Preferably, fixed axes are provided on both sides of the test cover, a rotating plate is connected to the outer side of the fixed axis, a fixed plate is provided in the connecting block, the fixed plate and the rotating plate are connected by a third spring, and the maximum rotation angle of the test cover is ninety degrees.
[0011] Preferably, a fixed shell is arranged on the fixed seat, a hydraulic rod is arranged inside the fixed shell, and a free end of the hydraulic rod is connected to the movable cover.
[0012] Preferably, a first sealing strip is provided at both ends of the top cover, a second sealing strip is provided at both sides of the top cover, a first sealing groove is opened at one end of the test cover, and a second sealing groove is opened on both sides of the test cover, and any of the first sealing strips is clamped in the first sealing groove opened on the test cover.
[0013] Preferably, a third sealing groove is provided on the movable cover, two of the third sealing grooves are respectively connected to two of the second sealing grooves, another of the first sealing strips is clamped in the first sealing groove provided on the movable cover, and the second sealing strip is clamped in the second sealing groove and the third sealing groove on the same side.
[0014] The principle and beneficial effects of this technical solution:
[0015] (1) The test assembly provided in the present invention can be used to test the ceramic sample to be tested by different methods. When the ceramic sample is tested by the electrochemical method, the radius of the selected ceramic sample needs to be smaller than the inner diameter of the test cover and the inner diameter of the movable cover. When the liquid level exceeds the maximum value in the test cover cavity, electrodes are respectively placed in the free end openings of the two end tubes and energized. After the specified time, the sample can be taken out to observe the corrosion condition. Similarly, when the mass loss method is used for testing, it is only necessary to change the type of liquid introduced into the end tube and not to prevent the electrode at the end tube position. When the pressure method is needed to test the sample, a sample with the same inner diameter as the test cover needs to be selected. At the same time, a one-way valve is connected to the end tube ends of the test cover and the movable cover, and the pressure of the overflow valve is adjusted to the specified value. The device can adopt different methods to perform corrosion tests on high-temperature ceramics, thereby reducing the test cost and improving the universality of the device.
[0016] (2) The adjustment assembly and the rotating assembly provided in the present invention can adjust the position of the top cover to seal the top openings of the test cover and the movable cover, and drive the two ends of the reel to gradually loosen the traction cable, so that the top frame connected to the free end of the traction cable drives the top cover to move downward synchronously along the end plates at both ends of the cross beam until it is stuck to the top of the test cover and the movable cover, thereby completing the closure of the top openings of the test cover and the movable cover.
[0017] (3) The first sealing strip and the second sealing strip provided on the top cover of the present invention can improve the sealing effect of the top cover on the top openings of the movable cover and the test cover. When the top cover moves down until the two first sealing strips are respectively inserted into the two first sealing grooves, on the one hand, the position of the movable cover can be corrected to prevent the movable cover from not moving into place and affecting the sealing line of the device. On the other hand, the upper end surface interfaces of the movable cover and the test cover can be sealed at the same time. A pair of third sealing grooves are provided on the movable cover to be connected with the second sealing grooves provided on both sides of the test cover, so that the top cover can seal the joint between the movable cover and the test cover, thereby further improving the sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure after assembly of the present invention;
[0019] Figure 2 It is a schematic diagram of the structure after the present invention is split;
[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;
[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of the middle B area;
[0022] Figure 5 It is a schematic diagram of the cutaway structure of some components in the present invention;
[0023] The figure marks in the drawings of the specification include: 1, end pipe; 2, fixed seat; 3, overflow valve; 4, top frame; 5, top cover; 6, first sealing strip; 7, second sealing strip; 8, first sealing groove; 9, second sealing groove; 10, test cover; 11, connecting block; 12, movable cover; 13, third sealing groove; 14, slider; 15, hydraulic rod; 16, compressed air bag; 17, end plate; 18, air guide tube; 19, column; 20, air pump; 21, fixed shell; 22, guide wheel; 23, side plate; 24, arc plate; 25, connecting frame; 26, first connecting plate; 27, first spring; 28, winder; 29, traction cable; 30, mounting plate; 31, crossbeam; 32, second spring; 33, second connecting plate; 35, specimen; 36, rotating plate; 37, third spring; 38, fixed plate; 39, fixed axis. DETAILED DESCRIPTION
[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:
[0025] Example:
[0026] like Figures 1 to 5 As shown, the present invention provides an ultra-high temperature ceramic material corrosion testing device, including a fixed seat 2, a pair of connecting blocks 11 are arranged on the fixed seat 2, a test assembly is arranged between the two connecting blocks 11, the test assembly includes a test cover 10 rotatably connected between the two connecting blocks 11, a sample 35 is clamped on one end of the test cover 10, and a movable cover 12 is slidably connected to the other end of the test cover 10 through a slider 14, the movable cover 12 is clamped on the free end of the sample 35, a top cover 5 is slidably clamped on the movable cover 12 and the test cover 10, the top cover 5 is connected to a crossbeam 31 through an adjustment assembly, the crossbeam 31 is connected to a column 19 arranged on the fixed seat 2 through a rotating assembly, and the free ends of the test cover 10 and the movable cover 12 are both connected to end pipes 1.
[0027] like Figure 1 and Figure 2 As shown, the free ends of the two end tubes 1 open vertically upward, and the opening height is higher than the highest height of the inner cavity of the test cover 10. The bottom end of the test cover 10 is connected to the overflow valve 3 through a pipeline.
[0028] The test assembly can perform different tests on the ceramic sample 35 to be tested. When the ceramic sample 35 is tested by an electrochemical method, the radius of the selected ceramic sample 35 needs to be smaller than the inner diameter of the test cover 10 and the inner diameter of the movable cover 12. The hydraulic rod 15 is driven to extend, so that the movable cover 12 connected to the free end of the hydraulic rod 15 moves outward until the movable cover 12 is out of contact with the test cover 10. Since a fixed plate 38 is provided in the connection block 11 provided on the fixed seat 2, and the fixed plate 38 is connected to the rotating plates 36 on both sides of the test cover 10 through a third spring 37, the fixed axes provided on both sides of the test cover 10 will be rotated to a vertical direction under the pull of the third spring 37. At this time, the tester can place the sample 35 in the test cover 10. After the placement is completed, the test cover 10 is manually turned to a horizontal direction and the movable cover 12 is reset. Then, the top cover 5 is clamped above the test cover 10 and the movable cover 12 through the adjustment assembly and the rotating assembly, and the overflow valve 3 at the bottom of the test cover 10 is adjusted. To the maximum pressure threshold, and electrolyte is introduced into the end tube 1 connected to the free ends of the test cover 10 and the movable cover 12. When the liquid level exceeds the maximum value in the cavity of the test cover 10, electrodes are respectively placed in the openings of the free ends of the two end tubes 1 and energized. After the specified time, the sample 35 can be taken out to observe the corrosion condition. Similarly, when the mass loss method is used for testing, it is only necessary to change the type of liquid introduced into the end tube 1, and at the same time, the electrode is not placed at the position of the end tube 1. When the pressure method is needed to test the sample 35, a sample 35 with an inner diameter equal to that of the test cover 10 is selected, and a one-way valve is connected to the end of the end tube 1 at both ends of the test cover 10 and the movable cover 12. The pressure of the overflow valve 3 is adjusted to the specified value, and then corrosive high-pressure gas or liquid is introduced into the end tube 1. After a period of time, the sample 35 is taken out and the corrosion condition of the sample 35 is observed. The device can adopt different methods to perform corrosion tests on high-temperature ceramics, thereby reducing the test cost and improving the universality of the device.
[0029] like Figure 2 and Figure 4 As shown, the adjustment assembly includes a pair of top frames 4 arranged on the top cover 5, a first spring 27 is arranged in the top frame 4, the top end of the first spring 27 is connected to the side plate 23, the two side plates 23 are slidably clamped in the top frame 4, the two side plates 23 are connected by a cross beam 31, a mounting plate 30 is arranged on the top end of the cross beam 31, a winder 28 is connected to the top end of the mounting plate 30, both sides of the winder 28 are connected to the inner bottom wall of the top frame 4 through traction cables 29, the top end of the top frame 4 is hinged with a guide wheel 22 through a connecting frame 25, and the two traction cables 29 are respectively clamped on the two guide wheels 22.
[0030] like Figures 3 to 5As shown, the rotating assembly includes an arc-shaped plate 24 arranged on one side of the cross beam 31, a first connecting plate 26 is arranged at the free end of the arc-shaped plate 24, the arc-shaped plate 24 is slidably clamped on the top of the column 19, the first connecting plate 26 is connected to the second connecting plate 33 arranged at the top of the column 19 through a second spring 32, an end plate 17 is arranged at the top of the column 19, the end plate 17 is connected to one end of the arc-shaped plate 24 through a compression airbag 16, one end of the compression airbag 16 is connected to the air pump 20 through an air guide tube 18, and the air pump 20 is arranged on the column 19.
[0031] The adjustment component and the rotating component can adjust the position of the top cover 5 to seal the top openings of the test cover 10 and the movable cover 12. When the top cover 5 needs to be covered on the top of the test cover 10, the air pump 20 needs to be started first to expand the compressed air bag 16 connected to the air guide tube 18 by the air pump 20. The compressed air bag 16 will squeeze the arc plate 24 connected to one end thereof so that the cross beam 31 where the arc plate 24 is located rotates along the top of the column 19. At this time, the first connecting plate 26 set at the free end of the arc plate 24 will pull the second connecting plate set at the top of the column 19. The second spring 32 connected to one side of the connecting plate 33 rotates until the beam 31 rotates to the horizontal direction. At this time, the winder 28 in the adjustment assembly is started again to gradually loosen the traction cable 29 at both ends of the winder 28. At this time, the traction cable 29 will move along the outer edge of the guide wheel 22, so that the top frame 4 connected to the free end of the traction cable 29 moves down along the end plates 17 at both ends of the beam 31, and the top cover 5 where the top frame 4 is located moves down synchronously until it is stuck to the top of the test cover 10 and the movable cover 12, thereby completing the closure of the top openings of the test cover 10 and the movable cover 12.
[0032] like Figure 2 and Figure 5 As shown, fixed shafts 39 are provided on both sides of the test cover 10, and a rotating plate 36 is connected to the outer side of the fixed shaft 39. A fixed plate 38 is provided in the connecting block 11. The fixed plate 38 and the rotating plate 36 are connected by a third spring 37. The maximum rotation angle of the test cover 10 is ninety degrees.
[0033] like Figure 1 and Figure 3 As shown, a fixed shell 21 is disposed on the fixed seat 2 , a hydraulic rod 15 is disposed inside the fixed shell 21 , and a free end of the hydraulic rod 15 is connected to the movable cover 12 .
[0034] like Figure 2 As shown, first sealing strips 6 are provided at both ends of the top cover 5, second sealing strips 7 are provided on both sides of the top cover 5, a first sealing groove 8 is opened at one end of the test cover 10, and second sealing grooves 9 are opened on both sides of the test cover 10, and any first sealing strip 6 is clamped in the first sealing groove 8 opened on the test cover 10.
[0035] like Figure 2 and Figure 3As shown, a third sealing groove 13 is provided on the movable cover 12, and the two third sealing grooves 13 are respectively connected to the two second sealing grooves 9, another first sealing strip 6 is clamped in the first sealing groove 8 provided on the movable cover 12, and the second sealing strip 7 is clamped in the second sealing groove 9 and the third sealing groove 13 on the same side.
[0036] The first sealing strip 6 and the second sealing strip 7 arranged on the top cover 5 can improve the sealing effect of the top cover 5 on the top openings of the movable cover 12 and the test cover 10. When the top cover 5 moves down until the two first sealing strips 6 are respectively inserted into the two first sealing grooves 8, on the one hand, the position of the movable cover 12 can be corrected to prevent the movable cover 12 from moving out of place and affecting the sealing line of the device. On the other hand, the upper end surface interfaces of the movable cover 12 and the test cover 10 can be sealed at the same time. A pair of third sealing grooves 13 are opened on the movable cover 12 to be connected with the second sealing grooves 9 opened on both sides of the test cover 10, so that the top cover 5 can seal the joint between the movable cover 12 and the test cover 10, thereby further improving the sealing effect of the device.
[0037] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An ultra-high temperature ceramic material corrosion testing device, characterized in that: The invention comprises a fixed seat (2), a pair of connecting blocks (11) are arranged on the fixed seat (2), a test assembly is arranged between the two connecting blocks (11), the test assembly comprises a test cover (10) rotatably connected between the two connecting blocks (11), a sample (35) is clamped on one end of the test cover (10), a movable cover (12) is slidably connected to the other end of the test cover (10) through a slider (14), the movable cover (12) is clamped on the free end of the sample (35), a top cover (5) is slidably clamped on the movable cover (12) and the test cover (10), the top cover (5) is connected to a crossbeam (31) through an adjustment assembly, the crossbeam (31) is connected to a column (19) arranged on the fixed seat (2) through a rotating assembly, and the free ends of the test cover (10) and the movable cover (12) are both connected to end pipes (1); The adjustment assembly comprises a pair of top frames (4) arranged on the top cover (5), a first spring (27) being arranged in the top frame (4), a side plate (23) being connected to the top end of the first spring (27), the two side plates (23) being slidably mounted in the top frame (4), the two side plates (23) being connected via a crossbeam (31), a mounting plate (30) being arranged at the top end of the crossbeam (31), a reel (28) being connected to the top end of the mounting plate (30), both sides of the reel (28) being connected to the inner bottom wall of the top frame (4) via traction cables (29), a guide wheel (22) being hingedly connected to the top end of the top frame (4) via a connecting frame (25), and the two traction cables (29) being respectively mounted on the two guide wheels (22); The rotating assembly comprises an arc-shaped plate (24) arranged on one side of the cross beam (31); a first connecting plate (26) is arranged at a free end of the arc-shaped plate (24); the arc-shaped plate (24) is slidably clamped on the top of the column (19); the first connecting plate (26) is connected to a second connecting plate (33) arranged at the top of the column (19) through a second spring (32); an end plate (17) is arranged at the top of the column (19); a compressed air bag (16) is connected between the end plate (17) and the arc-shaped plate (24); one end of the compressed air bag (16) is connected to an air pump (20) through an air guide tube (18); and the air pump (20) is arranged on the column (19).
2. The ultra-high temperature ceramic material corrosion testing equipment according to claim 1, characterized in that: The free ends of the two end tubes (1) are both opened vertically upwards, and the height of the openings is higher than the highest height of the inner cavity of the test cover (10). The bottom end of the test cover (10) is connected to a relief valve (3) via a pipeline.
3. The ultra-high temperature ceramic material corrosion testing equipment according to claim 1, characterized in that: Fixed shafts (39) are provided on both sides of the test cover (10), a rotating plate (36) is connected to the outer side of the fixed shaft (39), a fixed plate (38) is provided inside the connecting block (11), the fixed plate (38) and the rotating plate (36) are connected via a third spring (37), and the maximum rotation angle of the test cover (10) is ninety degrees.
4. The ultra-high temperature ceramic material corrosion testing equipment according to claim 3, characterized in that: A fixed shell (21) is arranged on the fixed seat (2), a hydraulic rod (15) is arranged inside the fixed shell (21), and a free end of the hydraulic rod (15) is connected to the movable cover (12).
5. The ultra-high temperature ceramic material corrosion testing equipment according to claim 4, characterized in that: Both ends of the top cover (5) are provided with first sealing strips (6), both sides of the top cover (5) are provided with second sealing strips (7), one end of the test cover (10) is provided with a first sealing groove (8), both sides of the test cover (10) are provided with second sealing grooves (9), and any of the first sealing strips (6) is clamped in the first sealing groove (8) provided on the test cover (10).
6. The ultra-high temperature ceramic material corrosion testing equipment according to claim 5, characterized in that: The movable cover (12) is provided with a third sealing groove (13), and the two third sealing grooves (13) are respectively connected with the two second sealing grooves (9), and the other first sealing strip (6) is clamped in the first sealing groove (8) provided on the movable cover (12), and the second sealing strip (7) is clamped in the second sealing groove (9) and the third sealing groove (13) on the same side.
Citation Information
Patent Citations
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CN116256264A
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CN116256605A