Corrosion resistance detection equipment for hot-rolled stainless steel plate

Abstract

The invention relates to the technical field of metal material corrosion testing, and particularly discloses corrosion resistance detection equipment for a hot-rolled stainless steel plate, the corrosion resistance detection equipment comprises a mounting platform, the top of the mounting platform is fixedly connected with a fixed plate, and the two sides of the fixed plate are fixedly connected with mounting blocks; through arrangement of the telescopic frame, the first detection frame, the second detection frame, the third detection frame, a first electric telescopic rod, a second electric telescopic rod, a water storage box and a spray head, during use, the telescopic frame realizes vertical lifting motion through synchronous driving of the first electric telescopic rod and the second electric telescopic rod; the second detection frame and the third detection frame are driven to perform accurate lifting displacement, and the nozzles in the detection frames are uniformly sprayed at the same concentration; the nozzles are arranged according to a specific angle (the upper layer is downward, the middle layer is centered and the lower layer is upward), so that the salt solutions with three concentrations can accurately cover different test areas of the hot-rolled stainless steel plate in the lifting process, and the multi-environment and automatic corrosion resistance detection of the hot-rolled stainless steel plate is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal material corrosion testing, and particularly relates to a corrosion resistance detection device for hot-rolled stainless steel plates. Background Art

[0002] In the technical field of metal material corrosion testing, the corrosion resistance detection of hot-rolled stainless steel plates has always been the focus of research. With the continuous progress of industrial technology and the continuous expansion of application fields such as marine and chemical industries, as a key material, the requirements for the corrosion resistance of hot-rolled stainless steel plates are also increasing day by day. Traditional corrosion resistance detection methods, such as salt spray tests and electrochemical corrosion tests, can, to a certain extent, simulate the corrosion behavior of hot-rolled stainless steel plates in specific environments.

[0003] However, there are still some deficiencies in the existing corrosion resistance detection equipment. Specifically, most of the equipment on the market can only spray corrosion media with a single concentration at present, and cannot achieve the corrosion test of hot-rolled stainless steel plates with multi-concentration gradients, which leads to limitations in simulating complex corrosion environments for the equipment and cannot accurately reflect the behavior differences of hot-rolled stainless steel plates under different corrosion intensities. In addition, the nozzle arrangement of the existing equipment is often relatively simple and cannot ensure the uniform coverage of the corrosion medium on the surface of the specimen, thus affecting the accuracy and comparability of the test results and resulting in poor use effects of the device. Therefore, it is necessary for the staff to improve it. Summary of the Invention

[0004] The purpose of the present invention is to provide a corrosion resistance detection device for hot-rolled stainless steel plates to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A corrosion resistance detection device for hot-rolled stainless steel plates, comprising:

[0007] An installation platform;

[0008] A fixed plate is fixedly connected to the top of the installation platform. Installation blocks are fixedly connected to both sides of the fixed plate. Telescopic frames are fixedly connected to the tops of the installation blocks. A first detection frame is fixedly connected to the top of the installation blocks. A second detection frame and a third detection frame are sequentially arranged on the surface of the telescopic frame from bottom to top. The inner wall of the first detection frame is sleeved on the surface of the second detection frame, and the inner wall of the second detection frame is sleeved on the inner wall of the third detection frame. A first electric telescopic rod is fixedly connected to the inner wall of one of the telescopic frames, and a second electric telescopic rod is fixedly connected to the inner wall of the other telescopic frame;

[0009] The inner walls of the first detection frame, the second detection frame, and the third detection frame are all fixedly connected with three water storage boxes. Multiple groups of spray nozzles are fixedly connected to the surfaces of the three water storage boxes, and the spray nozzles on the surfaces of the three water storage boxes are successively downward, centered, and upward from top to bottom.

[0010] Preferably, both sides of the top of the installation platform are fixedly connected with third electric telescopic rods. The top ends of the third electric telescopic rods are fixedly connected with an assembly plate. A servo motor is fixedly connected to the bottom of the assembly plate. A driving rod is installed at the output end of the servo motor. Two transmission wheels are fixedly connected to the top end of the driving rod. The inner walls of the two transmission wheels are rotatably connected with transmission belts. The inner walls of the two transmission belts are rotatably connected with driving wheels. A threaded sleeve is fixedly connected to the inner wall of the driving wheel. A threaded rod is threadedly connected to the inner wall of the threaded sleeve.

[0011] Preferably, the top end of the threaded rod is fixedly connected with a lapping plate. A protective box is fixedly connected to the top of the lapping plate. A driving motor is fixedly connected to the inner wall of the protective box. A transmission rod is installed at the output end of the driving motor. Two electric guide rails are fixedly connected to the bottom end of the transmission rod. A sliding block is slidably connected to the inner wall of the electric guide rail. A clamping plate is fixedly connected to the bottom end of the sliding block. An arc-shaped protective pad is fixedly connected to one side of the clamping plate.

[0012] Preferably, a socket rod is fixedly connected to the bottom of the lapping plate, and the bottom end of the socket rod is rotatably connected to the top of the electric guide rail.

[0013] Preferably, a limit block is fixedly connected to the bottom end of the threaded rod. Positioning tubes are fixedly connected to both sides of the bottom of the assembly plate, and the inner wall of the positioning tube is sleeved on the surface of the threaded rod. The surface of the limit block is slidably connected to the inner wall of the positioning tube.

[0014] Preferably, three storage boxes are fixedly connected to the top of the installation platform. Feed pipes are fixedly connected to the surfaces of the three storage boxes.

[0015] Preferably, three adding boxes are fixedly connected to one side of the storage boxes on the top of the installation platform. A pump body is fixedly connected to the inner wall of the three adding boxes. A water suction pipe is installed at the input end of the pump body, and one end of the water suction pipe is fixedly connected to the surface of the storage box. A water spray pipe is installed at the output end of the pump body. A winding rod is rotatably connected to the inner wall of the adding box through a damping rotating shaft, and the water spray pipe is wound around the surface of the winding rod. One ends of the three water spray pipes are fixedly connected to the tops of the first detection frame, the second detection frame, and the third detection frame in sequence.

[0016] Preferably, a drain pipe is inserted through the inner wall of the fixing plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) Through the settings of the telescopic frame, the first detection frame, the second detection frame, the third detection frame, the first electric telescopic rod, the second electric telescopic rod, the water storage box and the nozzle, during use, the telescopic frame realizes vertical lifting movement through the synchronous drive of the first electric telescopic rod and the second electric telescopic rod, driving the second detection frame and the third detection frame to make precise lifting displacement. The three detection frames adopt a concentric circular nested structure design (the first detection frame sleeved on the second detection frame, and the second detection frame sleeved on the third detection frame). The nozzle array of the third detection frame sprays 5% salt solution (upper layer), the second detection frame sprays 3.5% salt solution (middle layer), and the first detection frame sprays 1% salt solution (lower layer). The nozzles in each detection frame are evenly sprayed with the same concentration; the nozzles are arranged at specific angles (downward for the upper layer, centered for the middle layer, and upward for the lower layer) to ensure that the three-concentration salt solutions can accurately cover different test areas of the hot-rolled stainless steel plate during the lifting process; thus realizing multi-environment and automated corrosion resistance detection of the hot-rolled stainless steel plate. Through the adjustable multi-layer detection frame and the precise medium spraying system, the test efficiency and data reliability are significantly improved, and at the same time, the corrosion simulation requirements under different working conditions are met.

[0019] (2) Through the settings of the third electric telescopic rod, the servo motor, the threaded rod, the drive motor and the clamping plate, during use, the third electric telescopic rod provides the initial lifting power to drive the assembly plate to perform vertical displacement; the servo motor drives the transmission wheel to rotate through the drive rod, drives the drive wheel to rotate through the transmission belt, and then makes the threaded sleeve generate a rotational movement. The threaded fit between the threaded sleeve and the threaded rod converts the rotational movement into a linear movement, pushing the threaded rod to accurately lift under the guiding and limiting of the positioning tube. The overlapping plate, as a connection hub, transmits the lifting movement of the threaded rod to the protective box and the internal drive motor. The drive motor drives the two electric guide rails to operate synchronously through the transmission rod. The sliding blocks in the electric guide rails drive the clamping plate to make horizontal reciprocating movements. The arc-shaped protective pad provides buffer protection when the clamping plate clamps the specimen. The socket rod, as an auxiliary support, maintains the structural stability when the electric guide rail moves, thus ensuring the lifting and positioning accuracy of the specimen, facilitating the fixation of the specimen and avoiding surface damage, and realizing multi-position and high-precision positioning of the specimen during the corrosion test, meeting the stringent requirements of different test standards for the immersion depth and angle of the specimen.

[0020] (3) Through the settings of the storage box, feed pipe, addition box, pump body, water suction pipe, water spray pipe, winding rod and drain pipe, during use, different concentrations of corrosive medium solutions are stored in the storage box, and the feed pipe is used to supplement or replace the corrosive medium in the storage box; the pump body installed in the addition box extracts the solution from the storage box through the water suction pipe and transports it to the nozzle system of the detection frame through the water spray pipe; the winding rod adjusts the retractable length of the water spray pipe through a damping rotating shaft to ensure smoothness when the pipeline rises and falls with the detection frame; the drain pipe is used to discharge the waste liquid after testing, so as to realize the independent storage and precise transportation of multi-concentration corrosive media. Each pump body can control the flow rate independently to ensure that the three concentration solutions do not cross-contaminate, and the dynamic pipeline compensation system solves the problem of pipeline entanglement when the multi-layer detection frame rises and falls through the automatic retraction and extension of the winding rod. Description of the Drawings

[0021] Figure 1 One of the three-dimensional views of the present invention;

[0022] Figure 2 Another three-dimensional view of the present invention;

[0023] Figure 3 Three-dimensional view of the first electric telescopic rod of the present invention;

[0024] Figure 4 Three-dimensional view of the nozzle of the present invention;

[0025] Figure 5 Three-dimensional view of the threaded rod of the present invention;

[0026] Figure 6 Three-dimensional view of the electric guide rail of the present invention;

[0027] Figure 7 Three-dimensional view of the pump body of the present invention;

[0028] In the figure: 1, installation platform; 2, fixed plate; 3, installation block; 4, telescopic frame; 5, first detection frame; 6, second detection frame; 7, third detection frame; 8, first electric telescopic rod; 9, second electric telescopic rod; 10, water storage box; 11, nozzle; 12, third electric telescopic rod; 13, assembly plate; 14, servo motor; 15, driving rod; 16, transmission wheel; 17, transmission belt; 18, driving wheel; 19, threaded sleeve; 20, threaded rod; 21, overlapping plate; 22, protective box; 23, driving motor; 24, transmission rod; 25, electric guide rail; 26, sliding block; 27, clamping plate; 28, arc-shaped protective pad; 29, socket rod; 30, positioning tube; 31, storage box; 32, feed pipe; 33, addition box; 34, pump body; 35, water suction pipe; 36, water spray pipe; 37, winding rod; 38, drain pipe. Detailed Description of the Invention

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1:

[0031] Please refer to Figures 1 to 7 as shown, a corrosion resistance detection device for hot-rolled stainless steel plates, comprising: a mounting platform 1;

[0032] A fixed plate 2 is fixedly connected to the top of the mounting platform 1. Mounting blocks 3 are fixedly connected to both sides of the fixed plate 2. Telescopic frames 4 are fixedly connected to the tops of the mounting blocks 3. A first detection frame 5 is fixedly connected to the top of the mounting block 3. A second detection frame 6 and a third detection frame 7 are sequentially arranged on the surface of the telescopic frame 4 from bottom to top. The inner wall of the first detection frame 5 is sleeved on the surface of the second detection frame 6, and the inner wall of the second detection frame 6 is sleeved on the inner wall of the third detection frame 7. A first electric telescopic rod 8 is fixedly connected to the inner wall of one of the telescopic frames 4, and a second electric telescopic rod 9 is fixedly connected to the inner wall of the other telescopic frame 4;

[0033] Three water storage boxes 10 are fixedly connected to the inner walls of the first detection frame 5, the second detection frame 6, and the third detection frame 7. Multiple groups of nozzles 11 are fixedly connected to the surfaces of the three water storage boxes 10. The nozzles 11 on the surfaces of the three water storage boxes 10 are sequentially angled downward, centered, and upward from top to bottom.

[0034] In use, the installation platform 1 provides the basic support platform for the equipment to ensure the overall structural stability. The fixed plate 2 is vertically fixed on the installation platform 1 and serves as the core load-bearing frame. The installation blocks 3 are symmetrically fixed on both sides of the fixed plate 2 and are used to connect and support the telescopic frame 4 and the first detection frame 5. The telescopic frame 4 realizes vertical lifting movement (the adjustable speed range is 0.5 - 2 m / min) through the synchronous drive of the first electric telescopic rod 8 and the second electric telescopic rod 9, driving the second detection frame 6 and the third detection frame 7 to make precise lifting displacements. The three detection frames adopt a concentric circular nested structure design (the first detection frame 5 sleeved on the second detection frame 6, and the second detection frame 6 sleeved on the third detection frame 7). Three water storage boxes 10 are evenly distributed on the inner wall of each detection frame, forming a three-layer corrosion medium spraying system. And the three detection frames are respectively configured with salt solution spraying channels with different concentrations: the nozzles 11 of the third detection frame 7 spray 5% salt solution (upper layer) in an array, the second detection frame 6 sprays 3.5% salt solution (middle layer), and the first detection frame 5 sprays 1% salt solution (lower layer). The nozzles in each detection frame are sprayed evenly with the same concentration; the nozzles 11 are arranged at specific angles (downward for the upper layer, in the middle for the middle layer, and upward for the lower layer) to ensure that the three-concentration salt solutions can accurately cover different test areas of the hot-rolled stainless steel plate during the lifting process; realizing the integrated operation of automatic switching of three corrosion concentrations, layered spraying, and lifting tests, not only meeting the requirements of multi-concentration gradient corrosion tests, but also ensuring clear boundaries of the spraying areas of each concentration and high comparability of test data through mechanical link transmission, significantly improving the efficiency and accuracy of the corrosion resistance performance detection of hot-rolled stainless steel plates.

[0035] Embodiment 2:

[0036] Please refer to Figures 1 to 7As shown in the figure, third electric telescopic rods 12 are fixedly connected to both sides of the top of the installation platform 1. The top ends of the third electric telescopic rods 12 are fixedly connected to an assembly plate 13. A servo motor 14 is fixedly connected to the bottom of the assembly plate 13. A drive rod 15 is installed at the output end of the servo motor 14. Two transmission wheels 16 are fixedly connected to the top end of the drive rod 15. Transmission belts 17 are rotatably connected to the inner walls of the two transmission wheels 16. Drive wheels 18 are rotatably connected to the inner walls of the two transmission belts 17. A threaded sleeve 19 is fixedly connected to the inner wall of the drive wheel 18. A threaded rod 20 is threadedly connected to the inner wall of the threaded sleeve 19. A lapping plate 21 is fixedly connected to the top end of the threaded rod 20. A protective box 22 is fixedly connected to the top of the lapping plate 21. A drive motor 23 is fixedly connected to the inner wall of the protective box 22. A transmission rod 24 is installed at the output end of the drive motor 23. Two electric guide rails 25 are fixedly connected to the bottom end of the transmission rod 24. A sliding block 26 is slidably connected to the inner wall of the electric guide rail 25. A clamping plate 27 is fixedly connected to the bottom end of the sliding block 26. An arc-shaped protective pad 28 is fixedly connected to one side of the clamping plate 27. A socket rod 29 is fixedly connected to the bottom of the lapping plate 21, and the bottom end of the socket rod 29 is rotatably connected to the top of the electric guide rail 25. A limiting block is fixedly connected to the bottom end of the threaded rod 20. Positioning tubes 30 are fixedly connected to both sides of the bottom of the assembly plate 13, and the inner walls of the positioning tubes 30 are sleeved on the surface of the threaded rod 20. The surface of the limiting block is slidably connected to the inner wall of the positioning tube 30.

[0037] During use, the third electric telescopic rod 12 provides the initial lifting power to drive the assembly plate 13 to perform vertical displacement; the servo motor 14 drives the transmission wheel 16 to rotate through the drive rod 15, drives the drive wheel 18 to rotate through the transmission belt 17, and further causes the threaded sleeve 19 to generate a rotational motion. The threaded fit between the threaded sleeve 19 and the threaded rod 20 converts the rotational motion into a linear motion, pushing the threaded rod 20 to accurately lift under the guiding and limiting of the positioning tube 30. The lapping plate 21 serves as a connection hub to transfer the lifting motion of the threaded rod 20 to the protective box 22 and the internal drive motor 23. The drive motor 23 drives the two electric guide rails 25 to operate synchronously through the transmission rod 24. The sliding block 26 in the electric guide rail 25 drives the clamping plate 27 to perform horizontal reciprocating motion. The arc-shaped protective pad 28 provides buffer protection when the clamping plate 27 clamps the specimen. The socket rod 29 serves as an auxiliary support to maintain the structural stability when the electric guide rail 25 moves.

[0038] Embodiment 3:

[0039] Please refer to Figures 1 to 7As shown in the figure, three storage boxes 31 are fixedly connected to the top of the installation platform 1. Feed pipes 32 are fixedly connected to the surfaces of the three storage boxes 31. Three adding boxes 33 are fixedly connected to one side of the storage boxes 31 on the top of the installation platform 1. A pump body 34 is fixedly connected to the inner wall of the three adding boxes 33. A water suction pipe 35 is installed at the input end of the pump body 34, and one end of the water suction pipe 35 is fixedly connected to the surface of the storage box 31. A water spray pipe 36 is installed at the output end of the pump body 34. A winding rod 37 is rotatably connected to the inner wall of the adding box 33 through a damping rotating shaft, and the water spray pipe 36 is wound around the surface of the winding rod 37. One ends of the three water spray pipes 36 are fixedly connected to the tops of the first detection frame 5, the second detection frame 6, and the third detection frame 7 in sequence. A drain pipe 38 is inserted through the inner wall of the fixing plate 2.

[0040] During use, different concentrations of corrosive medium solutions (such as 5%, 3.5%, 1% salt solutions) are stored in the storage boxes 31. The feed pipes 32 are used to supplement or replace the corrosive medium in the storage boxes. The pump body 34 installed in the adding box 33 extracts the solution from the storage box 31 through the water suction pipe 35 and transports it to the nozzle system of the detection frame through the water spray pipe 36. The winding rod 37 adjusts the retracting and extending length of the water spray pipe 36 through the damping rotating shaft to ensure the smoothness of the pipeline when the detection frame rises and falls. The drain pipe 38 is used to discharge the waste liquid after the test.

[0041] Example 4:

[0042] Please refer to Figures 1 to 7 As shown in the figure, in the field of ocean engineering, hot-rolled stainless steel plates are widely used in key facilities such as offshore platforms and subsea pipelines. They are long-term exposed to a corrosive environment with high salt spray and high humidity. To ensure the service life of the materials in a harsh environment, it is necessary to accurately evaluate their corrosion resistance. Traditional detection methods have problems such as low efficiency and single simulated environment, while the multi-concentration gradient corrosion detection equipment of this application can efficiently simulate the multi-factor corrosion conditions of the marine environment.

[0043] Fix the hot-rolled stainless steel plate specimen to be tested (size 500mm×300mm×5mm) through the clamping plate 27, and the arc-shaped protective pad 28 protects the surface of the specimen from mechanical damage.

[0044] Inject 5% (simulating the splash zone), 3.5% (simulating the tidal range zone), and 1% (simulating the fully submerged zone) sodium chloride solutions into the three storage boxes 31 respectively through the feed pipe 32, corresponding to the typical environments of different corrosion intensities in the ocean.

[0045] Stratified spraying: The pump body 34 extracts the corresponding concentration solution through the water suction pipe 35 and transports it to the water storage box 10 of each detection frame through the water spray pipe 36. The nozzles 11 spray evenly at a preset angle (upper layer downward, middle layer centered, lower layer upward) to cover different areas of the specimen.

[0046] Dynamic lifting: The first electric telescopic rod 8 and the second electric telescopic rod 9 drive the telescopic frame 4 to lift (speed 1 m / min), enabling the specimen to pass through the 5%, 3.5%, and 1% salt solution spraying areas in sequence, simulating the concentration gradient corrosion caused by tidal changes.

[0047] Precise positioning: The servo motor 14 adjusts the height of the specimen through the threaded rod 20 to ensure clear boundaries in each concentration area. The test time is set to 72 hours according to ASTM G85 standard.

[0048] After the test, parameters such as the pitting depth and corrosion rate of the specimen surface are analyzed through a microscope and an electrochemical workstation. The corrosion differences in different concentration areas are compared to evaluate the applicability of the material in the marine environment.

[0049] The drain pipe 38 automatically discharges the waste liquid, and the winding rod 37 retrieves the water spray pipe 36 for the next detection.

[0050] This equipment can complete the composite environment corrosion test that requires multiple devices and multiple tests by traditional methods within 72 hours. The data repeatability error is <5%, providing an efficient and reliable evaluation method for material selection in ocean engineering.

[0051] Working principle: The installation platform 1 serves as the equipment foundation, forming a rigid support frame through the fixing plate 2 and the mounting block 3. The telescopic frame 4 realizes vertical lifting movement under the drive of the first electric telescopic rod 8 and the second electric telescopic rod 9.

[0052] The three-layer nested detection frames correspond to different corrosion concentrations respectively:

[0053] The third detection frame 7: 5% salt solution (simulating a high-concentration corrosion environment);

[0054] The second detection frame 6: 3.5% salt solution (simulating a medium-concentration corrosion environment);

[0055] The first detection frame 5: 1% salt solution (simulating a low-concentration corrosion environment);

[0056] The water storage boxes 10 in each detection frame achieve all-round spraying through the multi-angle nozzles 11:

[0057] The upper nozzles spray downward, the middle nozzles spray horizontally, and the lower nozzles spray upward.

[0058] The third electric telescopic rod 12 provides coarse adjustment for lifting. The servo motor 14 realizes precise positioning of ±0.1 mm through precise screw drive. The electric guide rail 25 drives the clamping plate 27 to complete the clamping of the specimen, and the arc-shaped protective pad 28 protects the surface of the specimen.

[0059] The storage box 31 stores different concentrations of corrosive liquid in partitions. The pump body 34 realizes precise delivery through the independently controlled water suction pipe 35 and water spray pipe 36. The winding rod 37 automatically adjusts the pipeline length to adapt to the lifting of the detection frame, and the drain pipe 38 completes the waste liquid recovery.

[0060] The specimen is fixed and positioned at the initial position through the clamping system. The control system drives the lifting of the detection frame according to the preset program. Corrosive liquids of different concentrations are delivered to the corresponding detection frames through the independent pipeline system. The multi-angle nozzles achieve full coverage spraying on the surface of the specimen. The precision drive system controls the conversion of the specimen between different concentration areas. After the test is completed, the waste liquid is automatically discharged and reset.

[0061] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion resistance testing device for hot-rolled stainless steel plates, characterized in that: include: Mounting platform (1); The top of the mounting platform (1) is fixedly connected to a fixing plate (2), both sides of the fixing plate (2) are fixedly connected to mounting blocks (3), the top of the mounting blocks (3) are fixedly connected to telescopic frames (4), the top of the mounting blocks (3) are fixedly connected to a first detection frame (5), the surface of the telescopic frame (4) is sequentially provided with a second detection frame (6) and a third detection frame (7) from bottom to top, and the inner wall of the first detection frame (5) is sleeved on the surface of the second detection frame (6), and the inner wall of the second detection frame (6) is sleeved on the inner wall of the third detection frame (7), the inner wall of one of the telescopic frames (4) is fixedly connected to a first electric telescopic rod (8), and the inner wall of the other telescopic frame (4) is fixedly connected to a second electric telescopic rod (9); The inner walls of the first detection frame (5), the second detection frame (6) and the third detection frame (7) are all fixedly connected with three water storage boxes (10), and the surfaces of the three water storage boxes (10) are all fixedly connected with a plurality of groups of nozzles (11), and the nozzles (11) on the surfaces of the three water storage boxes (10) are arranged in a downward, centered and upward angles from top to bottom.

2. The corrosion resistance testing equipment for hot-rolled stainless steel plates according to claim 1, characterized in that: A third electric telescopic rod (12) is fixedly connected to both sides of the top of the mounting platform (1), the top of the third electric telescopic rod (12) is fixedly connected to an assembly plate (13), the bottom of the assembly plate (13) is fixedly connected to a servo motor (14), the output end of the servo motor (14) is mounted with a driving rod (15), the top of the driving rod (15) is fixedly connected to two transmission wheels (16), the inner walls of the two transmission wheels (16) are rotatably connected to a transmission belt (17), the inner walls of the two transmission belts (17) are rotatably connected to a driving wheel (18), the inner wall of the driving wheel (18) is fixedly connected to a threaded sleeve (19), and the inner wall of the threaded sleeve (19) is threadedly connected to a threaded rod (20).

3. The corrosion resistance testing equipment for hot-rolled stainless steel plates according to claim 2, characterized in that: The top end of the threaded rod (20) is fixedly connected to a lap plate (21), the top of the lap plate (21) is fixedly connected to a protective box (22), the inner wall of the protective box (22) is fixedly connected to a drive motor (23), the output end of the drive motor (23) is installed with a transmission rod (24), the bottom end of the transmission rod (24) is fixedly connected to two electric guide rails (25), the inner wall of the electric guide rail (25) is slidably connected to a sliding block (26), the bottom end of the sliding block (26) is fixedly connected to a clamping plate (27), and one side of the clamping plate (27) is fixedly connected to an arc-shaped protective pad (28).

4. The corrosion resistance testing equipment for hot-rolled stainless steel plates according to claim 3, characterized in that: A sleeve rod (29) is fixedly connected to the bottom of the lap plate (21), and the bottom end of the sleeve rod (29) is rotatably connected to the top of the electric guide rail (25).

5. The corrosion resistance testing equipment for hot-rolled stainless steel plates according to claim 2, characterized in that: The bottom end of the threaded rod (20) is fixedly connected to a limiting block, and both sides of the bottom of the assembly plate (13) are fixedly connected to positioning tubes (30), and the inner wall of the positioning tube (30) is sleeved on the surface of the threaded rod (20), and the surface of the limiting block is slidably connected to the inner wall of the positioning tube (30).

6. The corrosion resistance testing equipment for hot-rolled stainless steel plates according to claim 1, characterized in that: Three storage boxes (31) are fixedly connected to the top of the installation platform (1), and feed pipes (32) are fixedly connected to the surfaces of the three storage boxes (31).

7. The corrosion resistance testing equipment for hot-rolled stainless steel plate according to claim 1, characterized in that: The top of the installation platform (1) is located on one side of the storage box (31) and is fixedly connected to three additional boxes (33); the inner walls of the three additional boxes (33) are fixedly connected to a pump body (34); a water suction pipe (35) is installed at the input end of the pump body (34), and one end of the water suction pipe (35) is fixedly connected to the surface of the storage box (31); a water spray pipe (36) is installed at the output end of the pump body (34); the inner wall of the additional box (33) is rotatably connected to a winding rod (37) via a damping shaft, and the water spray pipe (36) is wound and connected to the surface of the winding rod (37); and one end of the three water spray pipes (36) is fixedly connected to the top of the first detection frame (5), the second detection frame (6) and the third detection frame (7) in sequence.

8. The corrosion resistance testing equipment for hot-rolled stainless steel plates according to claim 1, characterized in that: A drainage pipe (38) is inserted through the inner wall of the fixing plate (2).

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