System and method for testing mechanical properties of material under high-acid and high-corrosion conditions

Abstract

The invention discloses a system and a method for testing mechanical properties of materials under high-acid and high-corrosion conditions, and relates to the technical field of material tests.The system comprises a perfluoroalkoxy resin hose, and fixing pipes are attached to the left side and the right side of the perfluoroalkoxy resin hose correspondingly; second flanges are fixedly connected to the positions, close to the left side and the right side, of the edge of the outer side of the perfluoroalkoxy resin hose, the two fixing pipes are connected with the perfluoroalkoxy resin hose through the first flanges, the second flanges and bolts, when the two air cylinders move the fixing pipes at the same time, the two fixing pipes bend the perfluoroalkoxy resin hose, and therefore the perfluoroalkoxy resin hose is bent. The perfluoroalkoxy resin flexible pipe can be used for carrying out a bending test on a material, when one cylinder stretches out and draws back, the fixed pipe on one side swings, a high-acid and high-corrosion medium in the perfluoroalkoxy resin flexible pipe can shake, so that an impact test is carried out on the material, and a monitor can record the change of the material.

Description

Technical Field

[0001] The present invention relates to the technical field of material testing, and specifically to a material mechanical property testing system and method under high-acid and high-corrosion conditions. Background Art

[0002] In the industrial field, materials need to be exposed to high-acid and high-corrosion media for a long time. Conventional mechanical tests are not convenient for reflecting the performance of materials in the actual service environment, which may affect subsequent normal use. At the same time, in the prior art, it is not convenient to store a variety of mechanical property testing means in the same device. If tools need to be frequently replaced, it may increase the workload of operators and may also cause the high-acid and high-corrosion media inside the device to flow out, affecting the environment where the device is located. Moreover, in the prior art, it is not convenient to disassemble the device, which is likely to reduce the service life of the device. Summary of the Invention

[0003] Aiming at the above-mentioned drawbacks existing in the prior art, the purpose of the present invention is to provide a material mechanical property testing system and method under high-acid and high-corrosion conditions.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A material mechanical property testing system under high-acid and high-corrosion conditions, including a perfluoroalkoxy resin hose. Fixed pipes are attached to both the left and right sides of the perfluoroalkoxy resin hose. Second flanges are fixedly connected to the outer edges of the perfluoroalkoxy resin hose near both the left and right sides. First flanges are fixedly connected to the outer edges of the fixed pipes near the perfluoroalkoxy resin hose. A number of first threaded holes are provided in the inner cavities of the first flanges and the second flanges. Adjacent two of the first threaded holes are commonly threadedly connected with bolts. An arc-shaped rod is provided on the outer edge of the perfluoroalkoxy resin hose. Two chassis are fixedly connected to the bottom end of the arc-shaped rod. Two first U-shaped blocks are fixedly connected to the outer edge of the arc-shaped rod. Adjusting blocks are hinged in the inner cavities of the first U-shaped blocks. Monitors are fixedly connected to the sides of the adjusting blocks close to the perfluoroalkoxy resin hose. Springs are fixedly connected to both the top and bottom of the adjusting blocks. The ends of the springs away from the adjusting blocks are fixedly connected to the outer edge of the arc-shaped rod. A limiting mechanism is provided in the inner cavity of the fixed pipe.

[0005] Preferably, the limiting mechanism includes two motors which are arranged left and right. The motors are respectively located in the inner cavities of adjacent fixed tubes. The power output shafts of the motors are fixedly connected with transmission rods. The ends of the transmission rods far away from the motors are fixedly connected with cross rods. Connecting rings are arranged in the inner cavities of the fixed tubes. Annular grooves are formed in the side walls of the inner cavities of the connecting rings. Rotating disks are arranged in the inner cavities of the connecting rings. Four sliders are fixedly connected to the outer edges of the rotating disks. The sliders are movably connected in the annular grooves. Three arc grooves are formed in the inner cavities of the rotating disks. Connecting disks are fixedly connected to the sides of the connecting rings close to the perfluoroalkoxy resin hoses. Three limiting grooves are formed in the connecting disks. Two movable grooves are formed in the side walls of the inner cavities of the limiting grooves. Movable rods penetrate through the arc grooves. The ends of the movable rods close to the perfluoroalkoxy resin hoses extend into the limiting grooves and are fixedly connected with clamping blocks. Four movable blocks are fixedly connected to the outer edges of the clamping blocks. Adjacent movable blocks are movably connected in adjacent movable grooves. Limiting disks are fixedly connected to the ends of the movable rods far away from the clamping blocks. Rotating rods are fixedly connected to the centers of the sides of the rotating disks far away from the connecting disks.

[0006] Preferably, fixing rings are fixedly connected to the outer edges of the rotating rods far away from the rotating disks. Movable rings are sleeved on the outer edges of the rotating rods. Sealing covers are fixedly connected to the sides of the movable rings close to the perfluoroalkoxy resin hoses. The outer edges of the sealing covers are mutually attached to the side walls of the inner cavities of the fixed tubes. First L-shaped rods are fixedly connected to the tops of the movable rings. Connecting plates are fixedly connected to the ends of the first L-shaped rods far away from the movable rings. Through holes are formed in the connecting plates. First threaded rods penetrate through the through holes. The ends of the first threaded rods far away from the connecting plates are fixedly connected with electric telescopic rods. The sides of the electric telescopic rods close to the movable rings are inserted into the outer edges of the fixed tubes. Nuts are threadedly connected to the outer edges of the first threaded rods far away from the electric telescopic rods.

[0007] Preferably, second L-shaped rods are fixedly connected to the bottoms of the movable rings. Limiting plates are inserted into the ends of the second L-shaped rods far away from the movable rings. Fixing columns are fixedly connected to the tops of the limiting plates. Z-shaped elastic plates are fixedly connected to the ends of the fixing columns far away from the limiting plates. The Z-shaped elastic plates are located on the sides of the adjacent motors.

[0008] Preferably, third threaded holes are formed in the sides of the fixed tubes far away from the perfluoroalkoxy resin hoses. Third threaded rods are threadedly connected in the third threaded holes. Second U-shaped blocks are inserted into the ends of the third threaded rods far away from the fixed tubes. The limiting plates are located in the inner cavities of the adjacent second U-shaped blocks. Two fourth threaded holes are formed in each second U-shaped block. Second threaded holes are formed in each limiting plate. Second threaded rods are threadedly connected in the second threaded holes. The two ends of each second threaded rod penetrate through the adjacent fourth threaded holes.

[0009] Preferably, the outer edges of the fixed pipes are fixedly connected with first U-shaped plates, swing plates are hinged in the inner cavities of the first U-shaped plates, cylinders are fixedly connected to the sides of the swing plates away from the fixed pipes, swing blocks are fixedly connected to the ends of the cylinders away from the fixed pipes, second U-shaped plates are hinged to the outer edges of the swing blocks, and bases are fixedly connected to the bottoms of the second U-shaped plates.

[0010] Preferably, cross grooves are formed at the ends of the rotating rods away from the rotating disks, and the cross rods are located in the adjacent cross grooves.

[0011] A method for a material mechanical property testing system under high-acid and high-corrosion conditions, comprising the following steps:

[0012] S1: Before starting the test on the material, first connect the left side of the perfluoroalkoxy resin hose to the left fixed pipe through the first flange, the second flange and bolts, place one side of the material at the connection disk inside the left fixed pipe, start the left motor, the left motor drives the transmission rod to rotate, the transmission rod drives the rotating rod to rotate through the cross rod, the rotating rod drives the rotating disk to rotate, the rotating disk drives the slider to rotate, the rotating disk drives the movable rod to move during rotation, the movable rod drives the clamping block and the movable block to move, and the three clamping blocks on the left clamp one side of the material;

[0013] S2: After the material is preliminarily limited, connect the right fixed pipe to the right side of the perfluoroalkoxy resin hose through the first flange, the second flange and bolts. At this time, there is no component connected to the motor inside the right fixed pipe. Pour the high-acid and high-corrosion medium into the perfluoroalkoxy resin hose through the right fixed pipe, and the high-acid and high-corrosion medium contacts the material;

[0014] S3: When it is necessary to clamp the right side of the material, place the connecting ring, the rotating disk, the connecting disk, and the motor inside the right fixed pipe. The cross rod on the transmission rod of the right motor is located in the cross groove inside the right rotating rod. The connecting rings, the rotating disks, the connecting disks and the rotating rods on the left and right sides are limited by the movable ring. Place the limiting plate at one end of the second L-shaped rod inside the second U-shaped block, and limit the second U-shaped block and the limiting plate through the second threaded rod. After the limiting plate is limited, the second L-shaped rod and the movable ring limit the rotating rod, the connecting ring, the rotating disk and the connecting disk through the fixed ring. Then start the right motor, the right motor drives the transmission rod to rotate, the transmission rod drives the rotating rod to rotate through the cross rod, the rotating rod drives the rotating disk to rotate, the rotating disk drives the slider to rotate, the rotating disk drives the movable rod to move during rotation, the movable rod drives the clamping block and the movable block to move, and the three clamping blocks on the right clamp the right side of the material;

[0015] S4: When it is necessary to adjust the position of the connecting ring, rotate the third threaded rod. The third threaded rod moves up and down in the threaded hole on the fixed tube. The third threaded rod drives the limiting plate to move up and down through the second U-shaped block and the second threaded rod. The limiting plate drives the movable ring to move through the second L-shaped rod. When the movable ring moves, the connecting ring will also move due to gravity. Then the movable ring limits the rotating rod again through the fixed ring;

[0016] S5: When testing the mechanical properties of the material, the material is immersed in a highly acidic and highly corrosive medium. First, start the cylinders on the left and right sides. The cylinders drive the fixed tube to move centrically through the swing plate and the first U-shaped plate. The fixed tube bends the perfluoroalkoxy resin hose through the first flange, the second flange and the bolts. Both sides of the material are clamped by the clamping blocks inside the fixed tubes on the left and right sides. When the fixed tube moves, the material will be squeezed and bent. Since the perfluoroalkoxy resin hose is semi-transparent, the monitor and the operator can observe and monitor the changes of the material;

[0017] S6: When it is necessary to test the tensile force of the material, remove the second U-shaped block from the surface of the limiting plate, rotate the electric telescopic rod, align the first threaded rod with the hole on the connecting plate, start the electric telescopic rod. The electric telescopic rod drives the first threaded rod to move. The first threaded rod penetrates through the hole on the connecting plate, and turn the nut onto the surface of the first threaded rod to install it. The electric telescopic rods on both sides extend simultaneously. The electric telescopic rods move through the first threaded rod, the nut and the connecting plate. The connecting plate drives the movable ring to move through the first L-shaped rod. The movable ring drives the rotating rod to move through the fixed ring. The rotating rod drives the rotating disc, the connecting ring, the connecting disc and the clamping block to move, and will conduct a tensile test on the material;

[0018] S7: When it is necessary to test the impact force of the material, start one side cylinder. One side cylinder drives the adjacent fixed tube to swing. The fixed tube will drive the perfluoroalkoxy resin hose to be adjusted. The highly acidic and highly corrosive medium inside the perfluoroalkoxy resin hose will sway left and right. The highly acidic and highly corrosive medium will conduct an impact test on the material, and the sealing cover can prevent the highly acidic and highly corrosive medium from flowing out.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Through the mutual cooperation among structures such as cylinders, perfluoroalkoxy resin hoses, fixed pipes, monitors, etc., the connection of two fixed pipes and a perfluoroalkoxy resin hose can be achieved through the first flange, the second flange, and bolts. When two cylinders move the fixed pipes simultaneously, the two fixed pipes will bend the perfluoroalkoxy resin hose, enabling the bending test of materials. When one of the cylinders expands and contracts, one side of the fixed pipe will swing, causing the highly acidic and highly corrosive medium inside the perfluoroalkoxy resin hose to shake, thereby conducting an impact test on the materials. The monitor can record the changes in the materials;

[0021] Through the mutual cooperation among structures such as motors, sealing covers, clamping blocks, electric telescopic rods, etc., the motor can drive the rotating rod and the rotating disk to rotate through the cross rod, and the clamping block will clamp the material. The position of the connecting ring is adjusted by the third threaded rod, and the Z-shaped elastic plate can limit the position of the motor. When a tensile test needs to be conducted on the material, the first threaded rod at one end of the electric telescopic rod penetrates the connecting plate, and the nut limits the first threaded rod. The electric telescopic rods on both the left and right sides move the clamping block, and the clamping block will stretch the material. At the same time, after the work is completed, it is convenient to disassemble each component to maintain the cleanliness and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the present invention;

[0023] Figure 2 is a left view of the present invention;

[0024] Figure 3 is an exploded view of the present invention;

[0025] Figure 4 is a sectional view of the present invention;

[0026] Figure 5 is a schematic diagram of the structure of the arc-shaped rod of the component of the present invention;

[0027] Figure 6 is a front view of the fixed pipe of the component of the present invention;

[0028] Figure 7 is a schematic diagram of the structure of the cylinder of the component of the present invention;

[0029] Figure 8 is an exploded view of the motor of the component of the present invention;

[0030] Figure 9 is a schematic diagram of the structure of the rotating rod of the present invention;

[0031] Figure 10 is an exploded view of the connecting ring of the component of the present invention;

[0032] Figure 11Schematic diagram of the component clamping block of the present invention;

[0033] Figure 12 is Figure 8 the enlarged view of part A in

[0034] Figure 13 is Figure 8 the enlarged view of part B in

[0035] Figure 14 is Figure 10 the enlarged view of part C in

[0036] Reference numerals in the figure: 1, perfluoroalkoxy resin hose; 2, fixed pipe; 3, first flange; 4, second flange; 5, arc-shaped rod; 6, chassis; 7, first U-shaped plate; 8, swing plate; 9, cylinder; 10, swing block; 11, second U-shaped plate; 12, base; 13, bolt; 14, monitor; 15, first U-shaped block; 16, spring; 17, adjusting block; 18, motor; 19, transmission rod; 20, rotating rod; 21, sealing cover; 22, electric telescopic rod; 23, movable ring; 24, first L-shaped rod; 25, second L-shaped rod; 26, Z-shaped elastic plate; 27, cross rod; 28, fixed ring; 29, connecting ring; 30, connecting plate; 31, rotating disk; 32, slider; 33, clamping block; 34, limiting disk; 35, nut; 36, first threaded rod; 37, connecting plate; 38, fixed column; 39, limiting plate; 40, second threaded rod; 41, second U-shaped block; 42, third threaded rod; 43, movable block; 44, movable rod. Detailed implementation manners

[0037] Please refer to Figures 1-14 , the present invention provides a technical solution:

[0038] Example 1:

[0039] Material mechanical property testing system under high acid and high corrosion conditions, including a perfluoroalkoxy resin hose 1. Fixed pipes 2 are attached to both the left and right sides of the perfluoroalkoxy resin hose 1. Second flanges 4 are fixedly connected to the outer edges of the perfluoroalkoxy resin hose 1 near both the left and right sides. First flanges 3 are fixedly connected to the outer edges of the fixed pipes 2 on the side close to the perfluoroalkoxy resin hose 1. A number of first threaded holes are provided in the inner cavities of both the first flanges 3 and the second flanges 4. Adjacent two first threaded holes are commonly threadedly connected with bolts 13. An arc-shaped rod 5 is provided on the outer edge of the perfluoroalkoxy resin hose 1. Two chassis 6 are fixedly connected to the bottom end of the arc-shaped rod 5. Two first U-shaped blocks 15 are fixedly connected to the outer edge of the arc-shaped rod 5. Adjusting blocks 17 are hinged in the inner cavities of the first U-shaped blocks 15. Monitors 14 are fixedly connected to the sides of the adjusting blocks 17 close to the perfluoroalkoxy resin hose 1. Springs 16 are fixedly connected to both the top and bottom of the adjusting blocks 17. The ends of the springs 16 far from the adjusting blocks 17 are fixedly connected to the outer edge of the arc-shaped rod 5. A limiting mechanism is provided in the inner cavity of the fixed pipe 2;

[0040] First U-shaped plates 7 are fixedly connected to the outer edges of both the fixed pipes 2. Swing plates 8 are hinged in the inner cavities of the first U-shaped plates 7. Cylinders 9 are fixedly connected to the sides of the swing plates 8 far from the fixed pipes 2. Swing blocks 10 are fixedly connected to the ends of the cylinders 9 far from the fixed pipes 2. Second U-shaped plates 11 are hinged to the outer edges of the swing blocks 10. Bases 12 are fixedly connected to the bottoms of the second U-shaped plates 11;

[0041] Connect the two fixed pipes 2 and the perfluoroalkoxy resin hose 1 through the first flanges 3, second flanges 4 and bolts 13. When the two cylinders 9 move the fixed pipes 2 simultaneously, the two fixed pipes 2 will bend the perfluoroalkoxy resin hose 1, enabling bending test on the material. When one of the cylinders 9 expands and contracts, one side of the fixed pipe 2 will swing, thus shaking the high acid and high corrosion medium inside the perfluoroalkoxy resin hose 1, so as to conduct impact test on the material. The monitor 14 can record the changes of the material.

[0042] Example Two:

[0043] The limiting mechanism includes two motors 18 which are arranged left and right. The motors 18 are respectively located in the inner cavities of adjacent fixed pipes 2. The power output shafts of the motors 18 are fixedly connected with transmission rods 19. The ends of the transmission rods 19 far away from the motors 18 are fixedly connected with cross rods 27. Connection rings 29 are arranged in the inner cavities of the fixed pipes 2. Annular grooves are formed in the side walls of the inner cavities of the connection rings 29. Rotating disks 31 are arranged in the inner cavities of the connection rings 29. Four sliders 32 are fixedly connected to the outer edges of the rotating disks 31. The sliders 32 are movably connected in the annular grooves. Three arc-shaped grooves are formed in the inner cavities of the rotating disks 31. Connection disks 30 are fixedly connected to the sides of the connection rings 29 close to the perfluoroalkoxy resin hose 1. Three limiting grooves are formed in the connection disks 30. Two movable grooves are formed in the side walls of the inner cavities of the limiting grooves. Movable rods 44 penetrate through the arc-shaped grooves. The ends of the movable rods 44 close to the perfluoroalkoxy resin hose 1 extend into the limiting grooves and are fixedly connected with clamping blocks 33. Four movable blocks 43 are fixedly connected to the outer edges of the clamping blocks 33. Adjacent two movable blocks 43 are movably connected in adjacent movable grooves. Limiting disks 34 are fixedly connected to the ends of the movable rods 44 far away from the clamping blocks 33. Rotating rods 20 are fixedly connected to the centers of the sides of the rotating disks 31 far away from the connection disks 30. Cross grooves are formed at the ends of the rotating rods 20 far away from the rotating disks 31. The cross rods 27 are located in the adjacent cross grooves;

[0044] On one side of the outer edge of the rotating rod 20 away from the rotating disc 31, fixed rings 28 are fixedly connected. Activity rings 23 are sleeved on the outer edges of the rotating rods 20. On one side of the activity rings 23 close to the perfluoroalkoxy resin hose 1, sealing covers 21 are fixedly connected. The outer edges of the sealing covers 21 are mutually attached to the inner cavity side walls of the fixed pipes 2. At the tops of the activity rings 23, first L-shaped rods 24 are fixedly connected. At the ends of the first L-shaped rods 24 away from the activity rings 23, connecting plates 37 are fixedly connected. Through holes are formed in the connecting plates 37. First threaded rods 36 penetrate through the through holes. At the ends of the first threaded rods 36 away from the connecting plates 37, electric telescopic rods 22 are fixedly connected. On the side of the electric telescopic rods 22 close to the activity rings 23, they are inserted into the outer edges of the fixed pipes 2. On the side of the outer edges of the first threaded rods 36 away from the electric telescopic rods 22, nuts 35 are threadedly connected. At the bottoms of the activity rings 23, second L-shaped rods 25 are fixedly connected. At the ends of the second L-shaped rods 25 away from the activity rings 23, limiting plates 39 are inserted. At the tops of the limiting plates 39, fixed columns 38 are fixedly connected. At the ends of the fixed columns 38 away from the limiting plates 39, Z-shaped elastic plates 26 are fixedly connected. The Z-shaped elastic plates 26 are located on one side of the adjacent motors 18. On the sides of the fixed pipes 2 away from the perfluoroalkoxy resin hose 1, third threaded holes are formed. Third threaded rods 42 are threadedly connected in the third threaded holes. At the ends of the third threaded rods 42 away from the fixed pipes 2, second U-shaped blocks 41 are inserted. The limiting plates 39 are located in the inner cavities of the adjacent second U-shaped blocks 41. Two fourth threaded holes are formed in each of the second U-shaped blocks 41. Second threaded holes are formed in the limiting plates 39. Second threaded rods 40 are threadedly connected in the second threaded holes. The two ends of the second threaded rods 40 penetrate through the adjacent fourth threaded holes;

[0045] The motor 18 drives the rotating rod 20 and the rotating disc 31 to rotate through the cross rod 27, and the clamping blocks 33 clamp the material. The position of the connecting ring 29 is adjusted through the third threaded rod 42. The Z-shaped elastic plate 26 can limit the position of the motor 18. When a tensile test needs to be performed on the material, the first threaded rod 36 at one end of the electric telescopic rod 22 penetrates through the connecting plate 37, and the nut 35 limits the first threaded rod 36. The electric telescopic rods 22 on the left and right sides move the clamping blocks 33, and the clamping blocks 33 will stretch the material. At the same time, after the work is completed, it is convenient to disassemble each component to keep the device clean and extend its service life.

[0046] A method for a material mechanical property test system under high-acid and high-corrosion conditions includes the following steps:

[0047] S1: Before starting the test on the material, first connect the left side of the perfluoroalkoxy resin hose 1 to the left fixed pipe 2 through the first flange 3, the second flange 4 and the bolt 13. Place one side of the material at the connection disc 30 inside the left fixed pipe. Start the left motor 18. The left motor 18 drives the transmission rod 19 to rotate. The transmission rod 19 drives the rotating rod 20 to rotate through the cross rod 27. The rotating rod 20 drives the rotating disc 31 to rotate. The rotating disc 31 drives the slider 32 to rotate. During the rotation of the rotating disc 31, it drives the movable rod 44 to move. The movable rod 44 drives the clamping block 33 and the movable block 43 to move. The three clamping blocks 33 on the left side clamp one side of the material.

[0048] S2: After the material is initially limited in position, connect the right fixed pipe 2 to the right side of the perfluoroalkoxy resin hose 1 through the first flange 3, the second flange 4 and the bolt 13. At this time, there is no component connected to the motor 18 inside the right fixed pipe 2. Pour the highly acidic and highly corrosive medium into the perfluoroalkoxy resin hose 1 through the right fixed pipe 2. The highly acidic and highly corrosive medium comes into contact with the material.

[0049] S3: When it is necessary to clamp the right side of the material, place the connecting ring 29, the rotating disc 31, the connecting disc 30, and the motor 18 inside the right fixed pipe 2. The cross rod 27 on the transmission rod 19 of the right motor 18 is located in the cross groove inside the right rotating rod 20. The connecting rings 29, the rotating discs 31, the connecting discs 30 and the rotating rods 20 on the left and right sides are limited in position by the movable ring 23. Place the limiting plate 39 at one end of the second L-shaped rod 25 inside the second U-shaped block 41. Limit the second U-shaped block 41 and the limiting plate 39 through the second threaded rod 40. After the limiting plate 39 is limited, the second L-shaped rod 25 and the movable ring 23 limit the rotating rod 20, the connecting ring 29, the rotating disc 31 and the connecting disc 30 through the fixed ring 28. Then start the right motor 18. The right motor 18 drives the transmission rod 19 to rotate. The transmission rod 19 drives the rotating rod 20 to rotate through the cross rod 27. The rotating rod 20 drives the rotating disc 31 to rotate. The rotating disc 31 drives the slider 32 to rotate. During the rotation of the rotating disc 31, it drives the movable rod 44 to move. The movable rod 44 drives the clamping block 33 and the movable block 43 to move. The three clamping blocks 33 on the right side clamp the right side of the material.

[0050] S4: When it is necessary to adjust the position of the connecting ring 29, rotate the third threaded rod 42. The third threaded rod 42 moves up and down in the threaded hole on the fixed pipe 2. The third threaded rod 42 drives the limiting plate 39 to move up and down through the second U-shaped block 41 and the second threaded rod 40. The limiting plate 39 drives the movable ring 23 to move through the second L-shaped rod 25. When the movable ring 23 moves, the connecting ring 29 will also move due to gravity. The movable ring 23 then limits the rotating rod 20 again through the fixed ring 28.

[0051] S5: When performing mechanical property tests on the material, the material is immersed in a highly acidic and highly corrosive medium. First, start the cylinders 9 on both the left and right sides. The cylinders 9 drive the fixed tube 2 to move centrally through the swing plate 8 and the first U-shaped plate 7. The fixed tube 2 bends the perfluoroalkoxy resin hose 1 through the first flange 3, the second flange 4, and the bolt 13. Both sides of the material are clamped by the clamping blocks 33 inside the fixed tubes 2 on both the left and right sides. When the fixed tube 2 moves, the material will be squeezed and bent. Since the perfluoroalkoxy resin hose 1 is a semi-transparent material, the monitor 14 and the operator can observe and monitor the changes in the material;

[0052] S6: When it is necessary to test the tensile force of the material, move the second U-shaped block 41 out of the surface of the limit plate 39, rotate the electric telescopic rod 22, align the first threaded rod 36 with the hole on the connecting plate 37, and start the electric telescopic rod 22. The electric telescopic rod 22 drives the first threaded rod 36 to move. The first threaded rod 36 passes through the hole on the connecting plate 37, and the nut 35 is rotated onto the surface of the first threaded rod 36 to install it. The electric telescopic rods 22 on both the left and right sides are extended simultaneously. The electric telescopic rods 22 move through the first threaded rod 36, the nut 35, and the connecting plate 37. The connecting plate 37 drives the movable ring 23 to move through the first L-shaped rod 24. The movable ring 23 drives the rotating rod 20 to move through the fixed ring 28. The rotating rod 20 drives the rotating disk 31, the connecting ring 29, the connecting plate 30, and the clamping block 33 to move, and the material will be subjected to a tensile test;

[0053] S7: When it is necessary to test the impact force of the material, start one of the cylinders 9. One of the cylinders 9 drives the adjacent fixed tube 2 to swing. The fixed tube 2 will drive the perfluoroalkoxy resin hose 1 to be adjusted. The highly acidic and highly corrosive medium inside the perfluoroalkoxy resin hose 1 will sway from side to side, and the highly acidic and highly corrosive medium will conduct an impact test on the material. The sealing cover 21 can prevent the highly acidic and highly corrosive medium from flowing out.

[0054] Working principle: Before starting the test on the material, first connect the left side of the perfluoroalkoxy resin hose 1 to the left fixed tube 2 through the first flange 3, the second flange 4, and the bolt 13. Place one side of the material at the connecting plate 30 inside the left fixed tube. Start the left motor 18. The left motor 18 drives the transmission rod 19 to rotate. The transmission rod 19 drives the rotating rod 20 to rotate through the cross rod 27. The rotating rod 20 drives the rotating disk 31 to rotate. The rotating disk 31 drives the slider 32 to rotate. During the rotation of the rotating disk 31, it drives the movable rod 44 to move. The movable rod 44 drives the clamping block 33 and the movable block 43 to move. The three clamping blocks 33 on the left side clamp one side of the material;

[0055] After the material is initially positioned, the right fixed pipe 2 is connected to the right side of the perfluoroalkoxy resin hose 1 through the first flange 3, the second flange 4 and the bolt 13. At this time, there is no component connected to the motor 18 inside the right fixed pipe 2. Pour the highly acidic and highly corrosive medium into the perfluoroalkoxy resin hose 1 through the right fixed pipe 2. When the highly acidic and highly corrosive medium contacts the material and it is necessary to clamp the right side of the material, place the connecting ring 29, the rotating disk 31, the connecting disk 30 and the motor 18 inside the right fixed pipe 2. The cross bar 27 on the transmission rod 19 of the right motor 18 is located in the cross groove inside the right rotating rod 20. The connecting rings 29, the rotating disks 31, the connecting disks 30 and the rotating rods 20 on the left and right sides are limited by the movable ring 23. Place the limiting plate 39 at one end of the second L-shaped rod 25 inside the second U-shaped block 41, and limit the second U-shaped block 41 and the limiting plate 39 through the second threaded rod 40. After the limiting plate 39 is limited, the second L-shaped rod 25 and the movable ring 23 limit the rotating rod 20, the connecting ring 29, the rotating disk 31 and the connecting disk 30 through the fixed ring 28. Then start the right motor 18. The right motor 18 drives the transmission rod 19 to rotate. The transmission rod 19 drives the rotating rod 20 to rotate through the cross bar 27. The rotating rod 20 drives the rotating disk 31 to rotate. The rotating disk 31 drives the slider 32 to rotate. During the rotation of the rotating disk 31, it drives the movable rod 44 to move. The movable rod 44 drives the clamping block 33 and the movable block 43 to move. The three clamping blocks 33 on the right clamp the right side of the material. When it is necessary to adjust the position of the connecting ring 29, rotate the third threaded rod 42. The third threaded rod 42 moves up and down in the threaded hole on the fixed pipe 2. The third threaded rod 42 drives the limiting plate 39 to move up and down through the second U-shaped block 41 and the second threaded rod 40. The limiting plate 39 drives the movable ring 23 to move through the second L-shaped rod 25. When the movable ring 23 moves, the connecting ring 29 will also move due to gravity. The movable ring 23 then limits the rotating rod 20 again through the fixed ring 28;

[0056] When performing a mechanical property test on the material, the material is immersed in the highly acidic and highly corrosive medium. First, start the cylinders 9 on the left and right sides. The cylinders 9 drive the fixed pipe 2 to move centrally through the swing plate 8 and the first U-shaped plate 7. The fixed pipe 2 bends the perfluoroalkoxy resin hose 1 through the first flange 3, the second flange 4 and the bolt 13. Both sides of the material are clamped by the clamping blocks 33 inside the fixed pipes 2 on the left and right sides. When the fixed pipe 2 moves, the material will be squeezed and bent. Since the perfluoroalkoxy resin hose 1 is a semi-transparent material, the monitor 14 and the operator can observe and monitor the changes of the material;

[0057] When it is necessary to test the tensile force of the material, move the second U-shaped block 41 away from the surface of the limit plate 39, rotate the electric telescopic rod 22, align the first threaded rod 36 with the hole on the connecting plate 37, start the electric telescopic rod 22, and the electric telescopic rod 22 drives the first threaded rod 36 to move. The first threaded rod 36 passes through the hole on the connecting plate 37, and the nut 35 is rotated onto the surface of the first threaded rod 36 for installation. The electric telescopic rods 22 on both the left and right sides are extended simultaneously. The electric telescopic rods 22 move through the first threaded rod 36, nut 35, and connecting plate 37. The connecting plate 37 drives the movable ring 23 to move through the first L-shaped rod 24. The movable ring 23 drives the rotating rod 20 to move through the fixed ring 28. The rotating rod 20 drives the rotating disk 31, connecting ring 29, connecting plate 30, and clamping block 33 to move, and the material will be subjected to a tensile test;

[0058] When it is necessary to test the impact force of the material, start one side of the cylinder 9. One side of the cylinder 9 drives the adjacent fixed tube 2 to swing. The fixed tube 2 will drive the perfluoroalkoxy resin hose 1 to be adjusted. The highly acidic and highly corrosive medium inside the perfluoroalkoxy resin hose 1 will sway left and right, and the highly acidic and highly corrosive medium will conduct an impact test on the material. The sealing cover 21 can prevent the highly acidic and highly corrosive medium from flowing out.

Claims

1. A material mechanical property testing system under high acid and high corrosion conditions, including a perfluoroalkoxy resin hose (1), characterized in that: The perfluoroalkoxy resin hose (1) is provided with fixed pipes (2) attached to both the left and right sides thereof. Second flanges (4) are fixedly connected to the outer edges of the perfluoroalkoxy resin hose (1) near both the left and right sides. First flanges (3) are fixedly connected to the outer edges of the fixed pipes (2) on the side close to the perfluoroalkoxy resin hose (1). A plurality of first threaded holes are formed in the inner cavities of both the first flanges (3) and the second flanges (4). Bolts (13) are commonly threadedly connected in two adjacent first threaded holes. An arc-shaped rod (5) is provided on the outer edge of the perfluoroalkoxy resin hose (1). Two chassis (6) are fixedly connected to the bottom end of the arc-shaped rod (5). Two first U-shaped blocks (15) are fixedly connected to the outer edge of the arc-shaped rod (5). A regulator block (17) is hinged in the inner cavity of each first U-shaped block (15). A monitor (14) is fixedly connected to the side of each regulator block (17) close to the perfluoroalkoxy resin hose (1). Springs (16) are fixedly connected to both the top and bottom of the regulator block (17). The ends of the springs (16) away from the regulator block (17) are fixedly connected to the outer edge of the arc-shaped rod (5). A limiting mechanism is provided in the inner cavity of the fixed pipe (2).

2. The mechanical property testing system for materials under high acid and high corrosion conditions according to claim 1, wherein: The limiting mechanism includes two motors (18). The two motors (18) are arranged left and right. The motors (18) are respectively located in the inner cavities of adjacent fixed pipes (2). Drive rods (19) are fixedly connected to the power output shafts of the motors (18). Cross rods (27) are fixedly connected to the ends of the drive rods (19) away from the motors (18). Connecting rings (29) are provided in the inner cavities of both fixed pipes (2). Annular grooves are formed in the side walls of the inner cavities of the connecting rings (29). Rotating discs (31) are provided in the inner cavities of the connecting rings (29). Four sliders (32) are fixedly connected to the outer edges of the rotating discs (31). The sliders (32) are movably connected in the annular grooves. Three arc-shaped grooves are formed in the inner cavities of the rotating discs (31). Connecting discs (30) are fixedly connected to the sides of the connecting rings (29) close to the perfluoroalkoxy resin hose (1). Three limiting grooves are formed in each connecting disc (30). Two movable grooves are formed in the side walls of the inner cavities of the limiting grooves. Movable rods (44) penetrate through the arc-shaped grooves. The ends of the movable rods (44) close to the perfluoroalkoxy resin hose (1) extend into the limiting grooves and are fixedly connected to clamping blocks (33). Four movable blocks (43) are fixedly connected to the outer edges of the clamping blocks (33). Two adjacent movable blocks (43) are movably connected in adjacent movable grooves. Limiting discs (34) are fixedly connected to the ends of the movable rods (44) away from the clamping blocks (33). Rotating rods (20) are fixedly connected to the centers of the sides of the rotating discs (31) away from the connecting discs (30).

3. The mechanical property testing system for materials under high acid and high corrosion conditions according to claim 2, wherein: On one side of the outer edge of the rotating rod (20) far from the rotating disc (31), a fixing ring (28) is fixedly connected. An activity ring (23) is sleeved on the outer edge of the rotating rod (20). On one side of the activity ring (23) close to the perfluoroalkoxy resin hose (1), a sealing cover (21) is fixedly connected. The outer edge of the sealing cover (21) is in mutual fit with the inner cavity side wall of the fixed pipe (2). A first L-shaped rod (24) is fixedly connected to the top of the activity ring (23). At one end of the first L-shaped rod (24) far from the activity ring (23), a connecting plate (37) is fixedly connected. Through holes are formed in the connecting plates (37). A first threaded rod (36) penetrates through the through holes. At one end of the first threaded rod (36) far from the connecting plate (37), an electric telescopic rod (22) is fixedly connected. On one side of the electric telescopic rod (22) close to the activity ring (23), it is inserted into the outer edge of the fixed pipe (2). Nuts (35) are threadedly connected to the outer edges of the first threaded rods (36) on the side far from the electric telescopic rod (22).

4. The mechanical property testing system for materials under high acid and high corrosion conditions according to claim 3, wherein: A second L-shaped rod (25) is fixedly connected to the bottom of the activity ring (23). A limiting plate (39) is inserted at one end of the second L-shaped rod (25) far from the activity ring (23). A fixing column (38) is fixedly connected to the top of the limiting plate (39). A Z-shaped elastic plate (26) is fixedly connected to one end of the fixing column (38) far from the limiting plate (39). The Z-shaped elastic plate (26) is located on one side of the adjacent motor (18).

5. The mechanical property testing system for materials under high acid and high corrosion conditions according to claim 4, characterized in that: On one side of the fixed pipe (2) far from the perfluoroalkoxy resin hose (1), third threaded holes are formed. Third threaded rods (42) are threadedly connected in the third threaded holes. At one end of the third threaded rods (42) far from the fixed pipe (2), second U-shaped blocks (41) are inserted. The limiting plate (39) is located in the inner cavity of the adjacent second U-shaped block (41). Two fourth threaded holes are formed in each of the second U-shaped blocks (41). Second threaded holes are formed in the limiting plates (39). Second threaded rods (40) are threadedly connected in the second threaded holes. The two ends of the second threaded rods (40) penetrate through the adjacent fourth threaded holes.

6. The material mechanical property testing system under high acid and high corrosion conditions according to claim 1, wherein: First U-shaped plates (7) are fixedly connected to the outer edges of the fixed pipes (2). Swing plates (8) are hinged in the inner cavities of the first U-shaped plates (7). Cylinders (9) are fixedly connected to the sides of the swing plates (8) far from the fixed pipes (2). Swing blocks (10) are fixedly connected to the ends of the cylinders (9) far from the fixed pipes (2). Second U-shaped plates (11) are hinged to the outer edges of the swing blocks (10). Bases (12) are fixedly connected to the bottoms of the second U-shaped plates (11).

7. The mechanical property testing system for materials under high acid and high corrosion conditions according to claim 2, wherein: Cross grooves are formed at the ends of the rotating rods (20) far from the rotating discs (31). The cross rods (27) are located in the adjacent cross grooves.

8. The method of the material mechanical property testing system under high acid and high corrosion conditions according to any one of claims 1-7, characterized in that, The steps include: S1: Before starting the test on the material, first connect the left side of the perfluoroalkoxy resin hose (1) to the fixed pipe (2) on the left side through the first flange (3), the second flange (4) and the bolt (13). Place one side of the material at the connection disk (30) inside the left fixed pipe. Start the left motor (18). The left motor (18) drives the transmission rod (19) to rotate. The transmission rod (19) drives the rotating rod (20) to rotate through the cross rod (27). The rotating rod (20) drives the rotating disk (31) to rotate. The rotating disk (31) drives the slider (32) to rotate. During the rotation of the rotating disk (31), it drives the movable rod (44) to move. The movable rod (44) drives the clamping block (33) and the movable block (43) to move. The three clamping blocks (33) on the left side clamp one side of the material. S2: After the material is initially positioned, connect the right side of the right fixed pipe (2) to the perfluoroalkoxy resin hose (1) through the first flange (3), the second flange (4) and the bolt (13). At this time, there is no component connected to the motor (18) inside the right fixed pipe (2). Pour the highly acidic and highly corrosive medium into the perfluoroalkoxy resin hose (1) through the right fixed pipe (2). The highly acidic and highly corrosive medium comes into contact with the material. S3: When it is necessary to clamp the right side of the material, place the connecting ring (29), the rotating disk (31), the connection disk (30), and the motor (18) inside the right fixed pipe (2). The cross rod (27) on the transmission rod (19) of the right motor (18) is located in the cross groove inside the right rotating rod (20). The connecting rings (29), the rotating disks (31), the connection disks (30) and the rotating rods (20) on the left and right sides are limited by the movable ring (23). Place the limiting plate (39) at one end of the second L-shaped rod (25) inside the second U-shaped block (41). Limit the second U-shaped block (41) and the limiting plate (39) through the second threaded rod (40). After the limiting plate (39) is limited, the second L-shaped rod (25) and the movable ring (23) limit the rotating rod (20), the connecting ring (29), the rotating disk (31) and the connection disk (30) through the fixed ring (28). Then start the right motor (18). The right motor (18) drives the transmission rod (19) to rotate. The transmission rod (19) drives the rotating rod (20) to rotate through the cross rod (27). The rotating rod (20) drives the rotating disk (31) to rotate. The rotating disk (31) drives the slider (32) to rotate. During the rotation of the rotating disk (31), it drives the movable rod (44) to move. The movable rod (44) drives the clamping block (33) and the movable block (43) to move. The three clamping blocks (33) on the right side clamp the right side of the material. S4: When it is necessary to adjust the position of the connecting ring (29), rotate the third threaded rod (42). The third threaded rod (42) moves up and down in the threaded hole on the fixed tube (2). The third threaded rod (42) drives the limiting plate (39) to move up and down through the second U-shaped block (41) and the second threaded rod (40). The limiting plate (39) drives the movable ring (23) to move through the second L-shaped rod (25). When the movable ring (23) moves, the connecting ring (29) will also move due to gravity. The movable ring (23) then limits the rotating rod (20) again through the fixed ring (28); S5: When testing the mechanical properties of the material, the material is immersed in a highly acidic and highly corrosive medium. First, start the cylinders (9) on the left and right sides. The cylinders (9) drive the fixed tube (2) to move centrally through the swing plate (8) and the first U-shaped plate (7). The fixed tube (2) bends the perfluoroalkoxy resin hose (1) through the first flange (3), the second flange (4), and the bolts (13). Both sides of the material are clamped by the clamping blocks (33) inside the fixed tubes (2) on the left and right sides. When the fixed tube (2) moves, the material will be squeezed and bent. Since the perfluoroalkoxy resin hose (1) is semi-transparent, the monitor (14) and the operator can observe and monitor the changes in the material; S6: When it is necessary to test the tensile force of the material, remove the second U-shaped block (41) from the surface of the limiting plate (39). Rotate the electric telescopic rod (22) and align the first threaded rod (36) with the hole on the connecting plate (37). Start the electric telescopic rod (22). The electric telescopic rod (22) drives the first threaded rod (36) to move. The first threaded rod (36) passes through the hole on the connecting plate (37). Rotate the nut (35) onto the surface of the first threaded rod (36) to install it. The electric telescopic rods (22) on both sides extend simultaneously. The electric telescopic rod (22) moves through the first threaded rod (36), the nut (35), and the connecting plate (37). The connecting plate (37) drives the movable ring (23) to move through the first L-shaped rod (24). The movable ring (23) drives the rotating rod (20) to move through the fixed ring (28). The rotating rod (20) drives the rotating disc (31), the connecting ring (29), the connecting disc (30), and the clamping block (33) to move, and will conduct a tensile test on the material; S7: When it is necessary to test the impact force of the material, start one side of the cylinder (9). One side of the cylinder (9) drives the adjacent fixed tube (2) to swing. The fixed tube (2) will drive the perfluoroalkoxy resin hose (1) to adjust. The highly acidic and highly corrosive medium inside the perfluoroalkoxy resin hose (1) will sway left and right. The highly acidic and highly corrosive medium will conduct an impact test on the material, and the sealing cover (21) can prevent the highly acidic and highly corrosive medium from flowing out.

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