An efficient device and method for testing the torsional strength of high-entropy alloy bars.

Abstract

The present invention discloses an efficient device and method for detecting the torsional strength of a high-entropy alloy bar. The present invention relates to the technical field of detecting the torsional strength of a high-entropy alloy bar. The device comprises a workbench, a positioning and clamping assembly disposed on the workbench for positioning two high-entropy alloy bars and clamping the lower ends of the high-entropy alloy bars. Two lifting cylinders are fixed to the bottom surface of the workbench, one on the left and one on the right of the positioning and clamping assembly. The piston rods of the two lifting cylinders both extend upward through the workbench, and a frame with a downward opening is fixed between the two piston rods. Two mounting assemblies for mounting an angle sensor at a specified position on the high-entropy alloy bar are disposed within the frame and on its left and right side walls. The beneficial effects of the present invention are: greatly reducing the workload of workers and greatly improving the efficiency of detecting the torsional strength of high-entropy alloy bars.

Description

Technical Field

[0001] This invention relates to the technical field of testing the torsional strength of high-entropy alloy bars, and in particular to a high-efficiency testing device and method for the torsional strength of high-entropy alloy bars. Background Art

[0002] The structure of high-entropy alloy rod 1 produced in a certain workshop is as follows: Figures 1-2 As shown, the cross-section of the high-entropy alloy rod 1 is square, and its total length is 50cm. The production process of this high-entropy alloy rod 1 is as follows: first, the high-entropy alloy is pressed into a semi-finished product by a pressing machine, and then the semi-finished product is sintered by a sintering equipment, so as to finally produce the high-entropy alloy rod 1. This high-entropy alloy rod 1 with high mechanical strength is mainly used to manufacture forging products.

[0003] After 10 high-entropy alloy bars 1 are mass-produced in the workshop, the workers need to test the torsional strength of all 10 high-entropy alloy bars 1. If the torsional strength of 2 high-entropy alloy bars 1 does not meet the requirements after all 10 high-entropy alloy bars 1 have been tested, the workers will adjust the production process of high-entropy alloy bars 1. If the torsional strength of all 10 high-entropy alloy bars 1 meets the requirements, the workers will continue to use the original production process to mass-produce a large number of high-entropy alloy bars 1 for customers to use.

[0004] Used in the workshop, such as Figure 3 The testing machine shown is used to test the torsional strength of high-entropy alloy bar 1. The testing machine includes a bracket 2 fixed on a base plate. A hydraulic motor A3 is fixed on the top wall of the bracket 2. The output axis of the hydraulic motor A3 passes through the top wall of the bracket 2 downward, and a vertical clamping cylinder A4 is fixed on the extension end. The chuck A5 of the vertical clamping cylinder A4 faces downward. A vertical clamping cylinder B6 is also fixed on the base plate. The chuck B7 of the vertical clamping cylinder B6 faces upward.

[0005] The method by which workers use this testing machine to test the torsional strength of 10 high-entropy alloy bars is as follows:

[0006] S1. The torsional strength of the first high-entropy alloy bar 1 is tested. The specific operating steps are as follows:

[0007] S11, The worker takes out a... Figures 1-2 The high-entropy alloy rod 1 shown is attached to one end face by a worker with two double-sided adhesive tapes 8, as shown. Figure 4 As shown, and ensure that the distance between the lower double-sided adhesive 8 and the bottom surface of the high-entropy alloy rod 1 is 25cm, and the distance between the upper double-sided adhesive 8 and the top surface of the high-entropy alloy rod 1 is 10cm.

[0008] S12. The worker attaches an angle sensor 9 to each of the two double-sided adhesive tapes 8 on the high-entropy alloy rod 1, such as... Figure 5 As shown, this allows two angle sensors 9 to be mounted on the high-entropy alloy rod 1 [the purpose of attaching the angle sensors 9 to the high-entropy alloy rod 1 is to accurately monitor the deformation of the high-entropy alloy rod 1].

[0009] S13. The worker connects the signal wires of the two angle sensors 9 to the controller;

[0010] S14. The worker places the upper end of the high-entropy alloy bar 1 into the chuck A5 of the vertical clamping cylinder A4, such as... Figure 6 As shown, the lower end of the high-entropy alloy bar 1 is placed into the chuck B7 of the vertical clamping cylinder B6, as... Figure 6 As shown;

[0011] S15. Control the vertical clamping cylinder A4 to start, the chuck A5 of the vertical clamping cylinder A4 closes, and the chuck A5 clamps and fixes the upper end of the high-entropy alloy bar 1. Figure 7 As shown; the vertical clamping cylinder B6 is activated, and the chuck B7 of the vertical clamping cylinder B6 closes, clamping and fixing the lower end of the high-entropy alloy bar 1, as shown. Figure 7 As shown;

[0012] S16. Control the hydraulic motor A3 to start. The output shaft of the hydraulic motor A3 drives the vertical clamping cylinder A4 to rotate. The vertical clamping cylinder A4 drives the upper end of the high-entropy alloy bar 1 to rotate. The rotation direction of the upper end of the high-entropy alloy bar 1 is as follows: Figure 8 As shown by the middle arrow, the high-entropy alloy bar 1 is gradually twisted and deformed. The twisted and deformed high-entropy alloy bar 1 then drives the two angle sensors 9 on it to rotate synchronously on the horizontal plane. The angle sensors 9 transmit the monitored angle values ​​to the controller in real time. When the hydraulic motor A3 works for the set time, the controller controls the hydraulic motor A3 to turn off. The worker calculates the average value of the two angle values ​​transmitted to the controller by the two angle sensors 9.

[0013] If the calculated average value is less than or equal to the specified deformation value, it means that the torsional strength of the high-entropy alloy bar 1 being tested meets the requirements. The next operation of the worker is: the worker controls the vertical clamping cylinder A4 and the vertical clamping cylinder B6 to close, and then the worker takes away the high-entropy alloy bar 1. After taking it away, the worker peels off the two angle sensors 9 that are pasted on the high-entropy alloy bar 1.

[0014] If the calculated average value is greater than the specified deformation value, it means that the torsional strength of the high-entropy alloy bar 1 being tested does not meet the requirements. The next operation of the worker is: the worker controls the vertical clamping cylinder A4 and the vertical clamping cylinder B6 to close, and then the worker removes the high-entropy alloy bar 1. After removing it, the worker peels off the two angle sensors 9 that are pasted on the high-entropy alloy bar 1 in preparation for the subsequent testing of the high-entropy alloy bar 1.

[0015] S2. The worker repeats step S1 nine times to complete the torsional strength test of the remaining nine high-entropy alloy bars 1.

[0016] S3. After all 10 high-entropy alloy bars 1 have been tested, if the torsional strength of 2 high-entropy alloy bars does not meet the requirements, the workers will adjust the production process of high-entropy alloy bars 1; if the torsional strength of all 10 high-entropy alloy bars 1 meets the requirements, the workers will continue to use the original production process to produce a large number of high-entropy alloy bars 1 for customers to use.

[0017] However, although this testing machine can perform torsional strength testing on 10 high-entropy alloy bars, it still has the following technical shortcomings:

[0018] 1. In step S11, the worker needs to attach two double-sided tapes 8 at the designated positions of the high-entropy alloy rod 1. In step S12, the worker needs to attach an angle sensor 9 to each of the two double-sided tapes 8 to install the two angle sensors 9 at the designated positions of the high-entropy alloy rod 1. In step S13, the worker needs to connect the signal lines of the two angle sensors 9 to the controller in order to continue to test the torsional strength of the high-entropy alloy rod 1.

[0019] However, the entire operation is done manually and involves many steps, which not only increases the workload of workers but also increases the testing time for the torsional strength of a single high-entropy alloy bar 1, thereby reducing the testing efficiency of the torsional strength of the high-entropy alloy bar 1.

[0020] II. In step S16, after the torsional strength test of each pair of high-entropy alloy bars 1 is completed, the worker needs to remove the two angle sensors 9 from the high-entropy alloy bars 1 to prepare for subsequent tests. This undoubtedly adds another testing step, thereby increasing the testing time for the torsional strength of the high-entropy alloy bars 1 and further reducing the testing efficiency.

[0021] III. This testing machine can only test high-entropy alloy bars 1 one by one, while there are as many as 10 high-entropy alloy bars 1 to be tested in the workshop. This results in a long time required to test all 10 high-entropy alloy bars 1, which further reduces the testing efficiency of the torsional strength of the high-entropy alloy bars 1. Consequently, workers cannot quickly determine whether the production process used can be used for mass production of high-entropy alloy bars.

[0022] Therefore, there is an urgent need for a testing device and method that can greatly reduce the workload of workers and greatly improve the efficiency of testing the torsional strength of high-entropy alloy bars. Summary of the Invention

[0023] The purpose of this invention is to overcome the shortcomings of the prior art and provide a highly efficient testing device and method for the torsional strength of high-entropy alloy bars, which greatly reduces the workload of workers and greatly improves the efficiency of testing the torsional strength of high-entropy alloy bars.

[0024] The objective of this invention is achieved through the following technical solution: a high-efficiency testing device for the torsional strength of high-entropy alloy bars, comprising a worktable and a positioning and clamping assembly disposed on the worktable for positioning two high-entropy alloy bars and clamping and fixing the lower ends of the high-entropy alloy bars. Two lifting cylinders are fixed on the bottom surface of the worktable, respectively located on the left and right sides of the positioning and clamping assembly. The piston rods of the two lifting cylinders extend upward through the worktable, and a frame with an opening facing downward is fixed between the two piston rods. Two mounting assemblies for installing angle sensors at designated positions on the high-entropy alloy bars are disposed within the frame and on its left and right side walls.

[0025] The mounting assembly on the left side includes a connecting plate fixed to the left side wall of the frame, a hollow cylinder rotatably mounted inside the connecting plate, an annular plate fixed to the outer cylindrical surface at the lower end of the hollow cylinder, a torsion spring sleeved on the outside of the hollow cylinder, the lower support foot of the torsion spring fixed to the top surface of the annular plate, and the upper support foot of the torsion spring fixed to the bottom surface of the connecting plate.

[0026] The upper end of the hollow cylinder is fixed with a rectangular shell that communicates with its inner cavity. Horizontal electric cylinders are fixed on the left and right outer walls of the rectangular shell. The piston rods of the two horizontal electric cylinders extend into the rectangular shell, and U-shaped locking blocks are fixed on the extended ends of the two cylinders. The bottom of the slot of one U-shaped locking block is provided with a recessed groove, and an angle sensor is fixed in the recessed groove. The outer end face of the angle sensor is flush with the slot of the U-shaped locking block.

[0027] Two hydraulic motors C are fixed on the top surface of the frame. The two hydraulic motors C are located directly above the two upper mounting components. The output shafts of the two hydraulic motors C penetrate downward through the top wall of the frame, and a vertical clamping cylinder C is fixed on the extended end. The chuck C of the vertical clamping cylinder C faces downward.

[0028] The two mounting components on the left side of the frame are symmetrical to the two mounting components on the right side.

[0029] The longitudinal width of the slot in the U-shaped card block is equal to the longitudinal width of the high-entropy alloy bar.

[0030] The top wall of the settling tank has a through hole that passes through the top surface of the U-shaped card block. The signal line of the angle sensor passes through the through hole and is electrically connected to the controller.

[0031] The positioning and clamping assembly includes two positioning platforms fixed on the workbench surface and a double-acting hydraulic cylinder fixed on the bottom surface of the workbench. The two positioning platforms are located directly below the two mounting components in the lower layer. Positioning grooves are provided on the top surface of the two positioning platforms. The positioning grooves match the outer contour of the high-entropy alloy bar. Through grooves are provided on the outer side of the two positioning platforms and opened in the workbench.

[0032] The two piston rods of the double-acting cylinder are each fixed with a movable plate. The two movable plates pass through two through slots. A horizontal clamping cylinder is fixed on the top surface of each of the two movable plates. The clamps of the horizontal clamping cylinders are set towards the positioning table.

[0033] A guide rail fixed to the workbench surface is provided between the through groove and the positioning table, and a slider is fixed on the movable plate, which is slidably mounted on the guide rail.

[0034] The testing device also includes a controller, which is electrically connected to the lifting cylinder, the double-acting cylinder, the horizontal clamping cylinder, the hydraulic motor C, and the vertical clamping cylinder C.

[0035] An efficient method for testing the torsional strength of high-entropy alloy bars, comprising the following steps:

[0036] S1. Positioning two high-entropy alloy bars: The worker takes out two mass-produced high-entropy alloy bars to be tested and embeds the lower ends of the two high-entropy alloy bars into the positioning slots of the two positioning platforms of the positioning and clamping assembly. Since the positioning slots match the outer contour of the high-entropy alloy bars, the positioning of the two high-entropy alloy bars is achieved. At this time, the two high-entropy alloy bars are located directly below the hollow cylinders of the two mounting assemblies in the lower layer. At the same time, the lower ends of the two high-entropy alloy bars are opposite to the chucks of the two horizontal clamping cylinders of the positioning and clamping assembly.

[0037] S2. The worker controls the piston rods of the two lifting cylinders to retract downwards. The piston rods drive the frame to move downwards. The frame drives the two hydraulic motors C, the vertical clamping cylinder C, and the four mounting components to move downwards synchronously. Among them, the two mounting components located on the left side of the frame move towards the high entropy alloy bar on the left, and the two mounting components located on the right side of the frame move towards the high entropy alloy bar on the right.

[0038] After the piston rods of the two lifting cylinders are fully retracted, the two high-entropy alloy bars enter the inspection station. The high-entropy alloy bar on the left is inserted into the hollow cylinder and rectangular shell of the two mounting components on the left. At the same time, the high-entropy alloy bar on the right is inserted into the hollow cylinder and rectangular shell of the two mounting components on the right. The high-entropy alloy bars are exactly between the two U-shaped clamping blocks of the mounting components. At the same time, the upper ends of the two high-entropy alloy bars are exactly in the chucks C of the two vertical clamping cylinders C.

[0039] S3. Clamp and fix the upper ends of the two high-entropy alloy bars: Control the two vertical clamping cylinders C to start, the chucks C of the vertical clamping cylinders C close, and the chucks C clamp and fix the upper ends of the high-entropy alloy bars, thereby achieving the clamping and fixing of the upper ends of the two high-entropy alloy bars.

[0040] S4. Clamp and fix the lower ends of the two high-entropy alloy rods. The specific operation steps are as follows:

[0041] S41. Both piston rods of the double-acting hydraulic cylinder of the control positioning and clamping assembly retract inward, and both piston rods drive the movable plate connected to them to move inward. The movable plate drives the horizontal clamping hydraulic cylinder to move inward synchronously. The left horizontal clamping hydraulic cylinder moves towards the lower end of the left high-entropy alloy bar, and at the same time, the right horizontal clamping hydraulic cylinder moves towards the lower end of the right high-entropy alloy bar. When both piston rods of the double-acting hydraulic cylinder are fully retracted, the chuck of the horizontal clamping hydraulic cylinder is just fitted over the outside of the lower end of the high-entropy alloy bar.

[0042] S42. Control the two horizontal clamping cylinders to start, the clamps of the horizontal clamping cylinders close, and the clamps clamp and fix the lower end of the high entropy alloy bar, thereby realizing the clamping and fixing of the lower end of the two high entropy alloy bars.

[0043] S5. Install two angle sensors at designated positions on both high-entropy alloy bars. The specific operating steps are as follows:

[0044] S51. The worker controls the two horizontal electric cylinders of the two mounting components located on the left side of the frame to extend. The horizontal electric cylinders drive the U-shaped blocks to move towards the high-entropy alloy bar. When the piston rod of the horizontal electric cylinder is fully extended, the two horizontally opposite U-shaped blocks just hold the high-entropy alloy bar tightly. At the same time, the angle sensor inside the U-shaped block is just installed on the end face of the high-entropy alloy bar, thus realizing the installation of two angle sensors at the designated position on the left side of the high-entropy alloy bar.

[0045] S52. The worker controls the two horizontal electric cylinders of the two mounting components located on the right side of the frame to extend, thereby enabling the installation of two angle sensors at the designated positions on the high-entropy alloy bar on the right side.

[0046] S6. Control both hydraulic motors C to start. The output shaft of hydraulic motor C drives the vertical clamping cylinder C to rotate. The vertical clamping cylinder C drives the upper end of the high-entropy alloy bar to rotate, thereby causing the high-entropy alloy bar to gradually twist and deform. The twisted and deformed high-entropy alloy bar drives the U-shaped block to rotate synchronously on the horizontal plane. The U-shaped block drives the rectangular shell and hollow cylinder to rotate synchronously on the horizontal plane. The hollow cylinder drives the annular plate to rotate synchronously on the horizontal plane. The annular plate deforms the torsion spring. At the same time, the U-shaped block also drives the angle sensor to rotate synchronously on the horizontal plane. The angle sensor transmits the monitored angle value to the controller in real time.

[0047] After the hydraulic motor C has worked for a set time, the controller controls the hydraulic motor C to shut down, and then the worker calculates the average of the two angle values ​​transmitted to the controller by the two angle sensors.

[0048] If the calculated average value is less than or equal to the specified deformation value, it indicates that the torsional strength of the tested high-entropy alloy bar meets the requirements.

[0049] If the calculated average value is greater than the specified deformation value, it indicates that the torsional strength of the tested high-entropy alloy bar does not meet the requirements, thus completing the test of the torsional strength of the two high-entropy alloy bars.

[0050] S7. The worker removes the two high-entropy alloy bars that have been inspected. The specific operating steps are as follows:

[0051] S71. The horizontal electric cylinder of the control installation component retracts, and the piston rod drives the U-shaped block to move away from the high-entropy alloy bar. When the U-shaped block separates from the high-entropy alloy bar, the hollow cylinder and rectangular shell are reset under the elastic restoring force of the deformed torsion spring, thereby resetting the angle sensor to the initial position to prepare for subsequent detection of the high-entropy alloy bar.

[0052] S72. The worker controls the horizontal clamping cylinder to close, so that the chuck of the horizontal clamping cylinder no longer clamps the lower end of the high-entropy alloy bar; then the worker controls the two piston rods of the double-acting cylinder to extend outward, so that the horizontal clamping cylinder moves away from the high-entropy alloy bar.

[0053] S73. The worker controls the vertical clamping cylinder C to close, and the chuck C of the vertical clamping cylinder C no longer clamps the upper end of the high-entropy alloy bar.

[0054] S74. Control the piston rods of the two lifting cylinders to extend upwards. The piston rods drive the frame to move upwards. The frame drives the hydraulic motor C and the four mounting components to move upwards, so that the mounting components move away from the high-entropy alloy bar.

[0055] S75. After the four mounting components are reset, the worker removes the two high-entropy alloy bars that have been tested from the positioning table.

[0056] S8. The worker repeats steps S1 to S7 four times to complete the torsional strength test of the remaining 8 high-entropy alloy bars.

[0057] S9. After all 10 high-entropy alloy bars have been tested, if the torsional strength of 2 high-entropy alloy bars does not meet the requirements, the workers will adjust the production process of the high-entropy alloy bars; if the torsional strength of all 10 high-entropy alloy bars meets the requirements, the workers will continue to use the original production process to produce a large number of high-entropy alloy bars for customers to use.

[0058] This invention has the following advantages: it greatly reduces the workload of workers and greatly improves the efficiency of testing the torsional strength of high-entropy alloy bars. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of the structure of a high-entropy alloy bar.

[0060] Figure 2 for Figure 1 The main view;

[0061] Figure 3 This is a structural diagram of the testing machine used in the workshop.

[0062] Figure 4 A schematic diagram showing how to attach two double-sided tapes to one end face of the high-entropy alloy rod;

[0063] Figure 5 A schematic diagram showing how to attach an angle sensor to both double-sided adhesive tapes on a high-entropy alloy rod;

[0064] Figure 6 A schematic diagram showing how to place the upper end of the high-entropy alloy bar into the chuck A of the vertical clamping cylinder A;

[0065] Figure 7 A schematic diagram showing how the chuck A of the vertically clamping cylinder A clamps and fixes the upper end of the high-entropy alloy bar.

[0066] Figure 8 A schematic diagram showing the rotation of the upper end of a high-entropy alloy bar;

[0067] Figure 9 This is a schematic diagram of the structure of the present invention;

[0068] Figure 10 for Figure 9 M-direction schematic diagram;

[0069] Figure 11 for Figure 9 Main section diagram;

[0070] Figure 12 A schematic diagram showing the connection between the frame, hydraulic motor C, vertical clamping cylinder C, and four mounting components;

[0071] Figure 13 for Figure 12 Main section diagram;

[0072] Figure 14 This is a structural diagram of the mounting components on the left.

[0073] Figure 15 for Figure 14 Main section diagram;

[0074] Figure 16 This is a structural diagram of the positioning and clamping components;

[0075] Figure 17 for Figure 16 A schematic diagram of the N-direction;

[0076] Figure 18 for Figure 16 Main section diagram;

[0077] Figure 19 A schematic diagram showing the connection between the U-shaped card block and the angle sensor;

[0078] Figure 20 for Figure 19 Main section diagram;

[0079] Figure 21 A schematic diagram illustrating the positioning of two high-entropy alloy bars;

[0080] Figure 22 This is a schematic diagram showing two high-entropy alloy bars entering the testing station.

[0081] Figure 23A schematic diagram illustrating how to clamp and fix the upper ends of two high-entropy alloy rods.

[0082] Figure 24 This is a schematic diagram showing the chuck of a horizontal clamping cylinder positioned outside the lower end of a high-entropy alloy bar.

[0083] Figure 25 for Figure 24 KK sectional view;

[0084] Figure 26 A schematic diagram showing how the chuck of a horizontally clamping hydraulic cylinder holds and fixes the lower end of a high-entropy alloy bar.

[0085] Figure 27 A schematic diagram showing the angle sensor inside the U-shaped block being mounted on the end face of a high-entropy alloy rod;

[0086] Figure 28 for Figure 27 A magnified view of part P;

[0087] Figure 29 for Figure 28 Schematic diagram of the TT cross section;

[0088] Figure 30 A schematic diagram showing the rotation of the upper ends of two high-entropy alloy bars;

[0089] Figure 31 A schematic diagram for removing two high-entropy alloy bars;

[0090] In the picture:

[0091] 1-High entropy alloy bar, 2-Bracket, 3-Hydraulic motor A, 4-Vertical clamping cylinder A, 5-Chuck A, 6-Vertical clamping cylinder B, 7-Chuck B, 8-Double-sided adhesive, 9-Angle sensor;

[0092] 10-Workbench, 11-Positioning and clamping assembly, 12-Lifting cylinder, 13-Frame, 14-Mounting assembly, 15-Connecting plate, 16-Hollow cylinder, 17-Annular plate, 18-Torsion spring, 19-Rectangular shell, 20-Horizontal electric cylinder, 21-U-shaped block, 22-Sinking groove; 24-Hydraulic motor C, 25-Vertical clamping cylinder C, 26-Chuck C, 27-Wire passage hole;

[0093] 28-Positioning stage, 29-Double-acting hydraulic cylinder, 30-Positioning groove, 31-Through groove, 32-Movable plate, 33-Horizontal clamping hydraulic cylinder, 34-Chuck, 35-Guide rail. Detailed Implementation

[0094] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0095] like Figures 9-20 As shown, a high-efficiency testing device for the torsional strength of high-entropy alloy bars includes a worktable 10 and a positioning and clamping assembly 11 disposed on the worktable 10 for positioning two high-entropy alloy bars 1 and clamping and fixing the lower ends of the high-entropy alloy bars 1. Two lifting cylinders 12 are fixed on the bottom surface of the worktable 10, respectively located on the left and right sides of the positioning and clamping assembly 11. The piston rods of the two lifting cylinders 12 extend upward through the worktable 10, and a frame 13 with an opening facing downward is fixed between the two piston rods. Two mounting assemblies 14 are disposed inside the frame 13 and on its left and right side walls for mounting angle sensors at designated positions on the high-entropy alloy bars 1. The two mounting assemblies 14 on the left side of the frame 13 are symmetrical to the two mounting assemblies 14 on the right side.

[0096] The mounting assembly 14 located on the left side includes a connecting plate 15 fixed to the left side wall of the frame 13. A hollow cylinder 16 is rotatably mounted inside the connecting plate 15. An annular plate 17 is fixed on the outer cylindrical surface at the lower end of the hollow cylinder 16. A torsion spring 18 is sleeved on the outside of the hollow cylinder 16. The lower support leg of the torsion spring 18 is fixed on the top surface of the annular plate 17, and the upper support leg of the torsion spring 18 is fixed on the bottom surface of the connecting plate 15.

[0097] The upper end of the hollow cylinder 16 is fixed with a rectangular shell 19 that communicates with its inner cavity. Horizontal electric cylinders 20 are fixed on the left and right outer walls of the rectangular shell 19. The piston rods of the two horizontal electric cylinders 20 extend into the rectangular shell 19, and U-shaped locking blocks 21 are fixed on the extended ends of the two cylinders. The bottom of the slot of one U-shaped locking block 21 is provided with a recessed groove 22. An angle sensor 9 is fixed in the recessed groove 22. The outer end face of the angle sensor 9 is flush with the slot of the U-shaped locking block 21. The longitudinal width of the slot of the U-shaped locking block 21 is equal to the longitudinal width of the high-entropy alloy rod 1. A wire hole 27 is provided on the top wall of the recessed groove 22, which passes through the top surface of the U-shaped locking block 21. The signal line of the angle sensor 9 passes through the wire hole 27 and is electrically connected to the controller.

[0098] Two hydraulic motors C24 are fixed on the top surface of the frame 13. The two hydraulic motors C24 are located directly above the two mounting components 14 on the upper layer. The output shafts of the two hydraulic motors C24 penetrate downward through the top wall of the frame 13, and a vertical clamping cylinder C25 is fixed on the extended end. The chuck C26 of the vertical clamping cylinder C25 faces downward.

[0099] The positioning and clamping assembly 11 includes two positioning platforms 28 fixed on the table surface of the workbench 10 and a double-acting hydraulic cylinder 29 fixed on the bottom surface of the workbench 10. The two positioning platforms 28 are located directly below the two mounting assemblies 14 in the lower layer. The top surface of each of the two positioning platforms 28 is provided with a positioning groove 30, which matches the outer contour of the high-entropy alloy bar 1. The outer side of each of the two positioning platforms 28 is provided with a through groove 31 opened in the workbench 10.

[0100] Movable plates 32 are fixed to the working ends of the two piston rods of the double-acting hydraulic cylinder 29. The two movable plates 32 extend upwards through two through slots 31. Horizontal clamping cylinders 33 are fixed to the top surfaces of the two movable plates 32, with their clamps 34 facing the positioning table 28. A guide rail 35, fixed to the worktable 10, is provided between the through slots 31 and the positioning table 28. A slider is fixed to the movable plate 32 and slidably mounted on the guide rail 35.

[0101] The testing device also includes a controller, which is electrically connected to the lifting cylinder 12, the double-acting cylinder 29, the horizontal clamping cylinder 33, the hydraulic motor C24, and the vertical clamping cylinder C25. The operator can control the extension or retraction of the piston rods of the lifting cylinder 12 and the double-acting cylinder 29 through the controller. At the same time, the operator can also control the start or stop of the horizontal clamping cylinder 33, the hydraulic motor C24, and the vertical clamping cylinder C25 to facilitate the operator's operation.

[0102] An efficient method for testing the torsional strength of high-entropy alloy bars, comprising the following steps:

[0103] S1. Positioning the two high-entropy alloy rods 1: The worker takes out two mass-produced high-entropy alloy rods 1 to be inspected. The structure of the high-entropy alloy rods 1 is as follows: Figures 1-2 As shown, the lower ends of the two high-entropy alloy rods 1 are respectively embedded into the positioning grooves 30 of the two positioning platforms 28 of the positioning and clamping assembly 11. Since the positioning grooves 30 match the outer contour of the high-entropy alloy rods 1, the positioning of the two high-entropy alloy rods 1 is achieved. Figure 21 As shown, at this time, the two high-entropy alloy rods 1 are located directly below the hollow cylinders 16 of the two mounting components 14 in the lower layer. At the same time, the lower ends of the two high-entropy alloy rods 1 are respectively opposite to the chucks 34 of the two horizontal clamping cylinders 33 of the positioning and clamping component 11.

[0104] S2. The worker controls the piston rods of the two lifting cylinders 12 to retract downwards. The piston rods drive the frame 13 to move downwards. The frame 13 drives the two hydraulic motors C24, the vertical clamping cylinder C25 and the four mounting components 14 to move downwards synchronously. Among them, the two mounting components 14 located on the left side of the frame 13 move towards the high entropy alloy bar 1 on the left side, and the two mounting components 14 located on the right side of the frame 13 move towards the high entropy alloy bar 1 on the right side.

[0105] After the piston rods of the two lifting cylinders 12 have fully retracted, both high-entropy alloy bars 1 enter the inspection station, such as... Figure 22 As shown, the high-entropy alloy rod 1 on the left is inserted into the hollow cylinder 16 and rectangular shell 19 of the two mounting components 14 on the left. At the same time, the high-entropy alloy rod 1 on the right is inserted into the hollow cylinder 16 and rectangular shell 19 of the two mounting components 14 on the right. The high-entropy alloy rod 1 is located between the two U-shaped clamping blocks 21 of the mounting component 14. At the same time, the upper ends of the two high-entropy alloy rods 1 are located in the chucks C26 of the two vertical clamping cylinders C25.

[0106] S3. Clamping and fixing the upper ends of the two high-entropy alloy rods 1: Control the activation of the two vertical clamping cylinders C25, and close the chucks C26 of the vertical clamping cylinders C25. The chucks C26 clamp and fix the upper ends of the high-entropy alloy rods 1, thereby achieving the clamping and fixing of the upper ends of the two high-entropy alloy rods 1. Figure 23 As shown;

[0107] S4. Clamp and fix the lower ends of the two high-entropy alloy rods 1. The specific operation steps are as follows:

[0108] S41. In the control positioning and clamping assembly 11, both piston rods of the double-acting cylinder 29 retract inwards, driving the connected movable plate 32 to move inwards. The movable plate 32 drives the horizontal clamping cylinder 33 to move inwards synchronously. The left horizontal clamping cylinder 33 moves towards the lower end of the left high-entropy alloy rod 1, while the right horizontal clamping cylinder 33 moves towards the lower end of the right high-entropy alloy rod 1. When both piston rods of the double-acting cylinder 29 are fully retracted, the chuck 34 of the horizontal clamping cylinder 33 is just positioned outside the lower end of the high-entropy alloy rod 1. Figures 24-25 As shown;

[0109] S42. Control the activation of the two horizontal clamping cylinders 33, close the chucks 34 of the horizontal clamping cylinders 33, and clamp and fix the lower end of the high-entropy alloy bar 1. Figure 26 As shown, this achieves the clamping and fixing of the lower ends of the two high-entropy alloy rods 1;

[0110] S5. Install two angle sensors 9 at designated positions on both high-entropy alloy bars 1. The specific operating steps are as follows:

[0111] S51. The worker controls the two horizontal electric cylinders 20 of the two mounting components 14 located on the left side of the frame 13 to extend. The horizontal electric cylinders 20 drive the U-shaped locking blocks 21 to move towards the high-entropy alloy rod 1. When the piston rod of the horizontal electric cylinder 20 is fully extended, the two horizontally opposite U-shaped locking blocks 21 just hold the high-entropy alloy rod 1 tightly. At the same time, the angle sensor 9 inside the U-shaped locking block 21 is just installed on the end face of the high-entropy alloy rod 1. Figures 27-29 As shown, this allows two angle sensors 9 to be installed at a designated position on the left high-entropy alloy rod 1.

[0112] S52, the worker controls the two horizontal electric cylinders 20 of the two mounting components 14 located on the right side of the frame 13 to extend, thereby realizing the installation of two angle sensors 9 at the designated position of the high entropy alloy bar 1 on the right side.

[0113] In steps S1 to S5, the worker only needs to first position the high-entropy alloy bar 1 to be tested on the positioning table 28, then control the piston rods of the two lifting cylinders 12 to retract downwards so that the two high-entropy alloy bars 1 enter the testing station, and finally control the horizontal electric cylinder 20 of the installation assembly 14 to extend so that the angle sensor 9 can be installed at the designated position of the high-entropy alloy bar 1.

[0114] Therefore, it can be seen that this detection device is superior to... Figures 3-8 The detection method shown eliminates the need for workers to attach two double-sided tapes 8 at designated positions on the high-entropy alloy bar 1, nor to attach an angle sensor 9 to each of the two double-sided tapes 8, nor to connect the signal wires of the two angle sensors 9 to the controller, in order to detect the torsional strength of the high-entropy alloy bar 1. This detection device automatically and quickly installs the two angle sensors 9 at the designated positions on the high-entropy alloy bar 1, which not only greatly reduces the workload of workers but also eliminates a large number of detection steps, thereby shortening the detection time for the torsional strength of a single high-entropy alloy bar 1 and greatly improving the detection efficiency of the torsional strength of the high-entropy alloy bar 1.

[0115] S6. Control both hydraulic motors C24 to start. The output shaft of hydraulic motor C24 drives the vertical clamping cylinder C25 to rotate. The vertical clamping cylinder C25 drives the upper end of the high-entropy alloy bar 1 to rotate. The rotation direction of the upper end of the high-entropy alloy bar 1 is as follows: Figure 30As shown by the middle arrow, the high-entropy alloy rod 1 is gradually twisted and deformed. The twisted and deformed high-entropy alloy rod 1 drives the U-shaped block 21 to rotate synchronously on the horizontal plane. The U-shaped block 21 drives the rectangular shell 19 and the hollow cylinder 16 to rotate synchronously on the horizontal plane. The hollow cylinder 16 drives the annular plate 17 to rotate synchronously on the horizontal plane. The annular plate 17 deforms the torsion spring 18. At the same time, the U-shaped block 21 also drives the angle sensor 9 to rotate synchronously on the horizontal plane. The angle sensor 9 transmits the detected angle value to the controller in real time.

[0116] After the hydraulic motor C24 has worked for a set time, the controller controls the hydraulic motor C24 to shut down. Then the worker calculates the average of the two angle values ​​transmitted to the controller by the two angle sensors 9.

[0117] If the calculated average value is less than or equal to the specified deformation value, it indicates that the torsional strength of the tested high-entropy alloy bar 1 meets the requirements.

[0118] If the calculated average value is greater than the specified deformation value, it indicates that the torsional strength of the tested high-entropy alloy bar 1 does not meet the requirements, thus completing the test of the torsional strength of the two high-entropy alloy bars 1.

[0119] S7. The worker removes the two high-entropy alloy bars 1 that have been inspected. The specific operating steps are as follows:

[0120] S71, the horizontal electric cylinder 20 of the control mounting component 14 retracts, and the piston rod drives the U-shaped locking block 21 to move away from the high-entropy alloy rod 1. When the U-shaped locking block 21 separates from the high-entropy alloy rod 1, the hollow cylinder 16 and the rectangular shell 19 are reset under the elastic restoring force of the deformed torsion spring 18, thereby resetting the angle sensor 9 to the initial position in preparation for subsequent detection of the high-entropy alloy rod 1.

[0121] S72, the worker controls the horizontal clamping cylinder 33 to close, and the chuck 34 of the horizontal clamping cylinder 33 no longer clamps the lower end of the high-entropy alloy bar 1; then the worker controls the two piston rods of the double-acting cylinder 29 to extend outward, so that the horizontal clamping cylinder 33 moves away from the high-entropy alloy bar 1.

[0122] S73. The worker controls the vertical clamping cylinder C25 to close, and the chuck C26 of the vertical clamping cylinder C25 no longer clamps the upper end of the high-entropy alloy bar 1.

[0123] S74. Control the piston rods of the two lifting cylinders 12 to extend upwards. The piston rods drive the frame 13 to move upwards. The frame 13 drives the hydraulic motor C24 and the four mounting components 14 to move upwards, so that the mounting components 14 move away from the high-entropy alloy bar 1.

[0124] S75. After the four mounting components 14 are reset, the worker removes the two high-entropy alloy bars 1 that have been tested from the positioning table 28, in the direction of removing the two high-entropy alloy bars 1 as follows: Figure 31 As indicated by the middle arrow;

[0125] As can be seen from step S71, the worker only needs to control the piston rod of the horizontal electric cylinder 20 of the installation component 14 to retract. After the U-shaped locking block 21 separates from the high-entropy alloy rod 1, the angle sensor 9 automatically resets to its initial position under the elastic restoring force of the deformed torsion spring 18, thus preparing for the subsequent inspection of the high-entropy alloy rod 1. Therefore, this inspection device, compared to... Figures 3-8 The detection method shown eliminates the need for workers to remove the two angle sensors 9 from the high-entropy alloy bar 1 in preparation for subsequent detection of the high-entropy alloy bar 1, further reducing the detection steps and shortening the detection time for the torsional strength of the high-entropy alloy bar 1, thereby greatly improving the detection efficiency of the torsional strength of the high-entropy alloy bar 1.

[0126] S8. The worker repeats steps S1 to S7 four times to complete the torsional strength test of the remaining 8 high-entropy alloy bars 1.

[0127] S9. After all 10 high-entropy alloy bars 1 have been tested, if the torsional strength of 2 high-entropy alloy bars does not meet the requirements, the worker will adjust the production process of high-entropy alloy bars 1; if the torsional strength of all 10 high-entropy alloy bars 1 meets the requirements, the worker will continue to use the original production process to produce a large number of high-entropy alloy bars 1 for customers to use.

[0128] As can be seen from steps S1 to S8, this testing device can perform torsional strength testing on two high-entropy alloy bars 1 at once, compared to... Figures 3-8 The testing method shown eliminates the need for workers to test each high-entropy alloy bar 1 one by one, thus enabling the testing of all 10 high-entropy alloy bars 1 to be completed in a short time, thereby greatly improving the testing efficiency of the torsional strength of the high-entropy alloy bars 1.

Claims

1. A high-efficiency testing device for the torsional strength of high-entropy alloy bars, characterized in that: It includes a worktable (10) and a positioning and clamping assembly (11) set on the worktable (10) for positioning two high-entropy alloy bars (1) and clamping and fixing the lower end of the high-entropy alloy bars (1). Two lifting cylinders (12) are fixed on the bottom surface of the worktable (10) respectively located on the left and right sides of the positioning and clamping assembly (11). The piston rods of the two lifting cylinders (12) pass through the worktable (10) upward, and a frame (13) with the opening facing downward is fixed between the two piston rods. Two mounting assemblies (14) for installing angle sensors at designated positions on the high-entropy alloy bars (1) are set inside the frame (13) and on its left and right side walls. The mounting assembly (14) located on the left side includes a connecting plate (15) fixed to the left side wall of the frame (13), a hollow cylinder (16) is rotatably mounted inside the connecting plate (15), an annular plate (17) is fixed on the outer cylindrical surface of the lower end of the hollow cylinder (16), a torsion spring (18) is sleeved on the outside of the hollow cylinder (16), the lower support of the torsion spring (18) is fixed on the top surface of the annular plate (17), and the upper support of the torsion spring (18) is fixed on the bottom surface of the connecting plate (15). The upper end of the hollow cylinder (16) is fixed with a rectangular shell (19) that communicates with its inner cavity. Horizontal electric cylinders (20) are fixed on the left and right outer walls of the rectangular shell (19). The piston rods of the two horizontal electric cylinders (20) extend into the rectangular shell (19), and U-shaped locking blocks (21) are fixed on the extended ends. Among them, a groove (22) is opened at the bottom of the groove of one U-shaped locking block (21). An angle sensor (9) is fixed in the groove (22). The outer end face of the angle sensor (9) is flush with the groove of the U-shaped locking block (21). Two hydraulic motors C (24) are fixed on the top surface of the frame (13). The two hydraulic motors C (24) are located directly above the two mounting components (14) on the upper layer. The output shafts of the two hydraulic motors C (24) penetrate downward through the top wall of the frame (13), and a vertical clamping cylinder C (25) is fixed on the extended end. The chuck C (26) of the vertical clamping cylinder C (25) faces downward. The positioning and clamping assembly (11) includes two positioning platforms (28) fixed on the table surface of the workbench (10) and a double-acting hydraulic cylinder (29) fixed on the bottom surface of the workbench (10). The two positioning platforms (28) are located directly below the two mounting assemblies (14) in the lower layer. The top surface of the two positioning platforms (28) is provided with positioning grooves (30). The positioning grooves (30) are matched with the outer contour of the high entropy alloy bar (1). The outer side of the two positioning platforms (28) is provided with through grooves (31) opened in the workbench (10). The two piston rods of the double-acting cylinder (29) are each fixed with a movable plate (32). The two movable plates (32) pass through two through slots (31) upwards respectively. The top surfaces of the two movable plates (32) are each fixed with a horizontal clamping cylinder (33). The clamp (34) of the horizontal clamping cylinder (33) is set towards the positioning table (28).

2. The high-efficiency testing device for the torsional strength of high-entropy alloy bars according to claim 1, characterized in that: The two mounting components (14) on the left side of the frame (13) are symmetrical to the two mounting components (14) on the right side.

3. The high-efficiency testing device for the torsional strength of high-entropy alloy bars according to claim 2, characterized in that: The longitudinal width of the slot of the U-shaped card block (21) is equal to the longitudinal width of the high-entropy alloy bar (1).

4. The high-efficiency testing device for the torsional strength of high-entropy alloy bars according to claim 3, characterized in that: The top wall of the settling tank (22) is provided with a through hole (27) that passes through the top surface of the U-shaped card block (21). The signal line of the angle sensor (9) passes through the through hole (27) and is electrically connected to the controller.

5. The high-efficiency testing device for the torsional strength of high-entropy alloy bars according to claim 4, characterized in that: A guide rail (35) fixed on the workbench (10) is provided between the through groove (31) and the positioning table (28). A slider is fixed on the movable plate (32) and the slider is slidably installed on the guide rail (35).

6. The high-efficiency testing device for the torsional strength of high-entropy alloy bars according to claim 5, characterized in that: The detection device also includes a controller, which is electrically connected to the lifting cylinder (12), the double-acting cylinder (29), the horizontal clamping cylinder (33), the hydraulic motor C (24), and the vertical clamping cylinder C (25).

7. A method for efficiently testing the torsional strength of high-entropy alloy bars, using the efficient testing device for the torsional strength of high-entropy alloy bars as described in claim 6, characterized in that: It includes the following steps: S1. Positioning two high-entropy alloy rods (1): The worker takes out two mass-produced high-entropy alloy rods (1) to be tested and embeds the lower ends of the two high-entropy alloy rods (1) into the positioning grooves (30) of the two positioning platforms (28) of the positioning and clamping assembly (11). Since the positioning grooves (30) match the outer contour of the high-entropy alloy rods (1), the positioning of the two high-entropy alloy rods (1) is realized. At this time, the two high-entropy alloy rods (1) are located directly below the hollow cylinders (16) of the two mounting assemblies (14) in the lower layer. At the same time, the lower ends of the two high-entropy alloy rods (1) are opposite to the chucks (34) of the two horizontal clamping cylinders (33) of the positioning and clamping assembly (11). S2. The worker controls the piston rods of the two lifting cylinders (12) to retract downwards. The piston rods drive the frame (13) to move downwards. The frame (13) drives the two hydraulic motors C (24), the vertical clamping cylinder C (25), and the four mounting components (14) to move downwards synchronously. Among them, the two mounting components (14) located on the left side of the frame (13) move towards the high entropy alloy bar (1) on the left side, and the two mounting components (14) located on the right side of the frame (13) move towards the high entropy alloy bar (1) on the right side. When the piston rods of the two lifting cylinders (12) are fully retracted, the two high-entropy alloy rods (1) enter the inspection station. The high-entropy alloy rod (1) on the left is inserted into the hollow cylinder (16) and rectangular shell (19) of the two mounting components (14) on the left. At the same time, the high-entropy alloy rod (1) on the right is inserted into the hollow cylinder (16) and rectangular shell (19) of the two mounting components (14) on the right. At the same time, the high-entropy alloy rod (1) is just between the two U-shaped blocks (21) of the mounting component (14). At the same time, the upper ends of the two high-entropy alloy rods (1) are just inside the chucks (26) of the two vertical clamping cylinders (25). S3. The upper ends of the two high-entropy alloy rods (1) are clamped and fixed: the two vertical clamping cylinders C (25) are started, the chucks C (26) of the vertical clamping cylinders C (25) are closed, and the chucks C (26) clamp and fix the upper ends of the high-entropy alloy rods (1), thereby realizing the clamping and fixing of the upper ends of the two high-entropy alloy rods (1); S4. The lower ends of the two high-entropy alloy rods (1) are clamped and fixed. The specific operation steps are as follows: S41. The two piston rods of the double-acting cylinder (29) of the control positioning and clamping assembly (11) retract inward, and the two piston rods drive the movable plate (32) connected to them to move inward. The movable plate (32) drives the horizontal clamping cylinder (33) to move inward synchronously. The left horizontal clamping cylinder (33) moves towards the lower end of the left high-entropy alloy rod (1), and at the same time, the right horizontal clamping cylinder (33) moves towards the lower end of the right high-entropy alloy rod (1). When the two piston rods of the double-acting cylinder (29) are fully retracted, the chuck (34) of the horizontal clamping cylinder (33) is just placed on the outside of the lower end of the high-entropy alloy rod (1). S42. Control the two horizontal clamping cylinders (33) to start, the clamps (34) of the horizontal clamping cylinders (33) close, the clamps (34) clamp and fix the lower end of the high entropy alloy rod (1), thereby realizing the clamping and fixing of the lower end of the two high entropy alloy rods (1); S5. Install two angle sensors (9) at designated positions on both high-entropy alloy bars (1). The specific operation steps are as follows: S51. The worker controls the horizontal electric cylinders (20) of the two mounting components (14) located on the left side of the frame (13) to extend. The horizontal electric cylinders (20) drive the U-shaped blocks (21) to move towards the high entropy alloy rod (1). When the piston rod of the horizontal electric cylinder (20) is fully extended, the two horizontally opposite U-shaped blocks (21) just hold the high entropy alloy rod (1) tightly. At the same time, the angle sensor (9) inside the U-shaped blocks (21) is just installed on the end face of the high entropy alloy rod (1), thereby realizing the installation of two angle sensors (9) at the designated position on the left side of the high entropy alloy rod (1). S52, the worker controls the horizontal electric cylinders (20) of the two mounting components (14) located on the right side of the frame (13) to extend, thereby enabling the installation of two angle sensors (9) at the designated position on the right high-entropy alloy bar (1). S6. Control both hydraulic motors C (24) to start. The output shaft of the hydraulic motor C (24) drives the vertical clamping cylinder C (25) to rotate. The vertical clamping cylinder C (25) drives the upper end of the high entropy alloy rod (1) to rotate, thereby causing the high entropy alloy rod (1) to gradually twist and deform. The twisted and deformed high entropy alloy rod (1) drives the U-shaped block (21) to rotate synchronously on the horizontal plane. The U-shaped block (21) drives the rectangular shell (19) and the hollow cylinder (16) to rotate synchronously on the horizontal plane. The hollow cylinder (16) drives the annular plate (17) to rotate synchronously on the horizontal plane. The annular plate (17) causes the torsion spring (18) to deform. At the same time, the U-shaped block (21) also drives the angle sensor (9) to rotate synchronously on the horizontal plane. The angle sensor (9) transmits the monitored angle value to the controller in real time. When the hydraulic motor C (24) has been working for a set time, the controller controls the hydraulic motor C (24) to shut down, and then the worker calculates the average of the two angle values ​​transmitted to the controller by the two angle sensors (9); If the calculated average value is less than or equal to the specified deformation value, it indicates that the torsional strength of the tested high-entropy alloy bar (1) meets the requirements. If the calculated average value is greater than the specified deformation value, it indicates that the torsional strength of the tested high-entropy alloy bar (1) does not meet the requirements, thus completing the test of the torsional strength of the two high-entropy alloy bars (1); S7. The worker removes the two high-entropy alloy bars (1) that have been tested. The specific operation steps are as follows: S71, the horizontal electric cylinder (20) of the control installation component (14) retracts, and the piston rod drives the U-shaped block (21) to move away from the high-entropy alloy rod (1). When the U-shaped block (21) separates from the high-entropy alloy rod (1), the hollow cylinder (16) and the rectangular shell (19) are reset under the elastic restoring force of the deformed torsion spring (18), thereby resetting the angle sensor (9) to the initial position in preparation for subsequent detection of the high-entropy alloy rod (1). S72, the worker controls the horizontal clamping cylinder (33) to close, and the chuck (34) of the horizontal clamping cylinder (33) no longer clamps the lower end of the high entropy alloy bar (1); then controls the two piston rods of the double-acting cylinder (29) to extend outward, so that the horizontal clamping cylinder (33) moves away from the high entropy alloy bar (1); S73, the worker controls the vertical clamping cylinder C (25) to close, and the chuck C (26) of the vertical clamping cylinder C (25) no longer clamps the upper end of the high entropy alloy bar (1); S74. Control the piston rods of the two lifting cylinders (12) to extend upwards. The piston rods drive the frame (13) to move upwards. The frame (13) drives the hydraulic motor C (24) and the four mounting components (14) to move upwards, so that the mounting components (14) move away from the high-entropy alloy bar (1). S75. After the four mounting components (14) are reset, the worker removes the two high-entropy alloy bars (1) that have been tested from the positioning table (28). S8. The worker repeats steps S1 to S7 four times to complete the torsional strength test of the remaining 8 high-entropy alloy bars (1). S9. After all 10 high-entropy alloy bars (1) have been tested, if the torsional strength of 2 high-entropy alloy bars does not meet the requirements, the worker will adjust the production process of the high-entropy alloy bars (1); if the torsional strength of all 10 high-entropy alloy bars (1) meets the requirements, the worker will continue to use the original production process to produce a large number of high-entropy alloy bars (1) for customers to use.

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