Complete device for testing hydrogen embrittlement sensitivity of prestressed steel wire

Abstract

A prestressed steel wire hydrogen embrittlement sensitivity test complete device belongs to the technical field of steel wire testing and comprises a workbench, two driving assemblies, a first positioning assembly and a second positioning assembly, and the two driving assemblies are arranged at the left end and the right end of the upper portion of the workbench in a bilateral symmetry mode; the first positioning assembly is connected to the output end of the driving assembly; the second positioning assembly is arranged on the side wall of the first positioning assembly; double positioning of the side wall of the steel wire is achieved through the first positioning assembly and the second positioning assembly. According to the utility model, a dual positioning mode of basic clamping and reinforced constraint is adopted, and on the basis that the positioning fixture completes basic clamping, the clamping blocks reinforce constraint on the side wall of the steel wire by enlarging the contact area and increasing friction force, so that the clamping stability is improved, and the mechanical property test precision is guaranteed; meanwhile, synchronous driving of sample stretching and side wall clamping is achieved through the same power source, the structure is simplified, and the detection efficiency and reliability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel wire testing technology, specifically relating to a complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire. Background Technology

[0002] In steel wire performance testing, a tensile force is applied to the steel wire using specialized equipment, causing it to gradually elongate until it breaks. This is called a tensile test. During this process, indicators such as tensile strength, yield strength, and elongation of the steel wire can be measured, directly reflecting its load-bearing capacity, plastic deformation capacity, and other properties, providing important evidence for evaluating the quality and applicability of the steel wire. Furthermore, when conducting hydrogen embrittlement sensitivity testing on prestressed steel wire, a tensile test is required on the steel wire after it has been immersed in a corrosive solution to test its performance in a corrosive environment.

[0003] In related technology (Chinese utility model patent with announcement number CN218823622U), a tensile testing device for steel wire production is disclosed, including a base, a cover plate hinged to the surface of the base, and a viewing window fixed to the front end of the cover plate. A tensile component is installed inside the base. This device, through the clamping component and the tensile component, can ensure the clamping and fixing of both ends of the steel wire, making the clamping of the steel wire more secure, ensuring the smooth progress of the test, avoiding the steel wire slipping due to excessive tension or insecure fixing, preventing the slipped steel wire from being thrown out of the base, avoiding harm to operators and testing instruments, and facilitating use.

[0004] In the above scheme, although the end of the steel wire can be fixed, the positioning of the steel wire by the clamp alone is limited by the contact area between the clamp and the end of the steel wire. During continuous tensile loading, the interfacial friction is difficult to meet the constraint requirements. When the tensile force exceeds the critical value, the end of the steel wire is still prone to slippage in the clamp, which leads to the instability of the position of the steel wire sample during the test, affecting the accuracy of the mechanical performance parameter measurement and the reliability of the test results. Utility Model Content

[0005] To address the problems in existing technologies that rely solely on clamps for tensile testing of steel wires, such as limited contact area between the clamps and the wire ends, insufficient interfacial friction during continuous tensioning, and slippage of the wire within the clamp after the tensile force exceeds a critical value, leading to unstable wire sample position and affecting the accuracy and reliability of mechanical property parameter measurements and test results, this invention provides a complete set of devices for testing the hydrogen embrittlement sensitivity of prestressed steel wires. It employs a dual positioning method of basic clamping and enhanced constraint. After the positioning clamps complete the basic clamping, the clamping blocks enhance the constraint on the sidewalls of the steel wire by increasing the contact area and friction, thereby improving clamping stability and ensuring the accuracy of mechanical property testing. The specific technical solution is as follows:

[0006] A complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire, used for testing steel wire, includes: a workbench, a drive assembly, a first positioning assembly, and a second positioning assembly. The drive assembly is provided in two sets, and the two sets of drive assemblies are symmetrically arranged on the left and right ends above the workbench. The first positioning assembly is connected to the output end of the drive assembly. The second positioning assembly is disposed on the side wall of the first positioning assembly.

[0007] The steel wire sidewall is positioned using the first positioning component and the second positioning component.

[0008] In the above technical solution, each drive component includes a cylinder and a movable seat, wherein the cylinder is mounted horizontally above the worktable; and the movable seat is mounted on the output end of the cylinder.

[0009] In the above technical solution, the first positioning component includes: a positioning seat, a side plate, a positioning bolt, a first guide rod, and a positioning clamp. The positioning seat is fixedly installed on the movable seat. The side plate is symmetrically fixedly installed on the positioning seat. The positioning bolt rotates through the side plate in the front-back direction and is threadedly connected to the side plate. The first guide rod slides through the side plate in the front-back direction. The positioning clamp is fixedly installed at the ends of the positioning bolt and the first guide rod.

[0010] In the above technical solution, the inner wall of the positioning fixture is arc-shaped, and the arc-shaped inner wall of the positioning fixture is provided with an anti-slip pad.

[0011] In the above technical solution, the second positioning component includes: an extension rod, a support rod, a swing seat, a slide groove, a drive pin, and a clamping block. The extension rod is fixedly installed on the side wall of the positioning seat, with the front and rear ends corresponding to each other. The support rod is fixedly and vertically installed on the worktable. The swing seat is rotatably connected to the top end of the support rod. The slide groove is formed on the swing seat. The drive pin is vertically and fixedly installed on the extension rod, and the drive pin is slidably embedded in the inner cavity of the slide groove. The clamping block is fixedly installed on the end of the swing seat.

[0012] In the above technical solution, the clamping block is configured as a rigid block with elasticity.

[0013] The above technical solution also includes: a support frame and a support opening, wherein the support frame is fixedly installed on the workbench and the support frame is configured as n-shaped; the support opening is opened on the upper surface of the middle part of the support frame, wherein the steel wire is placed in the inner cavity of the support opening.

[0014] In the above technical solution, a protective cover is rotatably installed on the workbench.

[0015] In the above technical solution, the driving component further includes: a fixing plate and a second guide rod, wherein the fixing plate is correspondingly arranged in the horizontal direction; and the second guide rod is fixedly installed between the two fixing plates in the horizontal direction.

[0016] The movable seat is slidably sleeved on the second guide rod.

[0017] The above technical solution also includes: a PLC controller, which is installed on the top of the front sidewall of the steel wire and is electrically connected to the cylinder.

[0018] Compared with existing technologies, the complete set of devices for testing the hydrogen embrittlement sensitivity of prestressed steel wires of this utility model has the following advantages:

[0019] I. To address the problem that existing tensile testing methods relying solely on clamps for wire positioning suffer from limited contact area between the clamp and the wire end, insufficient interfacial friction during continuous stretching, and easy slippage of the wire within the clamp after the tensile force exceeds a critical value, leading to unstable wire sample position and affecting the accuracy and reliability of wire mechanical property parameter measurement and test results, this invention constructs a dual positioning mechanism for tensile performance testing of steel wire. While the positioning clamp provides basic clamping and positioning, the clamping block further increases the contact area and friction with the wire, strengthening the constraint effect on the wire's sidewalls. This effectively enhances the clamping force of the testing equipment during the stretching process, ensuring stability at both ends of the wire under stress and preventing positional shift due to wire slippage within the clamp. This significantly improves the accuracy of steel wire mechanical property parameter measurement and the reliability of test results.

[0020] Second, this utility model is equipped with a linkage drive mechanism. While the driving force is applied to the end of the steel wire to carry out the tensile test, the clamping block is simultaneously triggered to move closer to the side wall of the steel wire and gradually clamp it. This integrated drive scheme realizes the dual functions of tensile loading and side wall strengthening clamping. The composite action of sample end tension and side wall positioning is completed through the same power source, avoiding the need for an additional independent power system to drive the clamping block, effectively simplifying the equipment structure and improving the testing efficiency and stability.

[0021] Third, in this utility model, the clamping and positioning of the end of the steel wire can be achieved through the cooperation of components such as the side plate, positioning bolt, first guide rod, and positioning fixture. The spacing between each set of positioning fixtures can be adjusted to flexibly adapt to the clamping requirements of steel wires of different thicknesses.

[0022] In summary, this utility model adopts a dual positioning method of basic clamping and enhanced constraint. On the basis of the basic clamping by the positioning fixture, the clamping block enhances the constraint on the side wall of the steel wire by expanding the contact area and increasing the friction, thereby improving the clamping stability and ensuring the accuracy of mechanical property testing. At the same time, the same power source is used to realize the synchronous driving of sample stretching and side wall clamping, simplifying the structure and improving the testing efficiency and reliability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the workbench of this utility model;

[0024] Figure 2 This is a top view of the clamping block of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the protective cover of this utility model in the open state;

[0026] Figure 4 This is a schematic diagram of the side plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the drive pin of this utility model;

[0028] Figure 5 This is a schematic diagram of the positioning fixture of this utility model;

[0029] Figures 1 to 6 In the middle, 1. steel wire, 2. workbench, 3. PLC controller, 4. moving seat, 5. positioning seat, 6. side plate, 7. positioning bolt, 8. first guide rod, 9. positioning clamp, 10. cylinder, 11. fixed plate, 12. second guide rod, 13. extension rod, 14. support rod, 15. swing seat, 16. slide groove, 17. drive pin, 18. clamping block, 19. support bracket, 20. support opening, 21. protective cover. Detailed Implementation

[0030] The following are specific implementation cases and appendices. Figures 1 to 5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0031] A complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire, used for testing steel wire 1, includes: a worktable 2, a drive assembly, a first positioning assembly, and a second positioning assembly. Two sets of drive assemblies are symmetrically arranged on the left and right ends above the worktable 2. The first positioning assembly is connected to the output end of the drive assembly. The second positioning assembly is located on the side wall of the first positioning assembly. The first and second positioning assemblies achieve dual positioning of the side wall of the steel wire 1. Through the synergistic effect of the first and second positioning assemblies, the contact area and friction with the steel wire 1 are increased, strengthening the constraint effect on the side wall of the steel wire 1. This effectively enhances the clamping force of the testing equipment during the tensile process, ensuring the stability of the steel wire 1 under stress at both ends and preventing positional shifts due to slippage within the clamp. This significantly improves the accuracy of the measurement of the mechanical property parameters of the steel wire 1 and the reliability of the test results.

[0032] For details, please refer to the main references. Figure 4 As shown, each drive assembly includes a cylinder 10 and a movable seat 4. The cylinder 10 is mounted horizontally above the worktable 2; the movable seat 4 is mounted on the output end of the cylinder 10. The drive assembly also includes a fixed plate 11 and a second guide rod 12. The fixed plate 11 is correspondingly arranged horizontally; the second guide rod 12 is fixedly installed horizontally between the two fixed plates 11. The movable seat 4 is slidably sleeved on the second guide rod 12. The activated cylinder 10 can drive the positioning seat 5 and the extension rod 13 to move synchronously, thereby achieving a dual positioning and clamping function for the sidewall of the steel wire 1. This device has a linkage drive mechanism. When the driving force is applied to the end of the steel wire 1 to carry out a tensile test, it will simultaneously cause the clamping block 18 to move closer to the sidewall of the steel wire 1 and gradually clamp it. This integrated drive design achieves the coordinated operation of the tensile loading and sidewall strengthening clamping functions. The tensile loading of the sample end and the positioning operation of the sidewall can be completed simultaneously using only one power source. In this way, there is no need to equip the clamping block 18 with an independent power system, which effectively simplifies the structure of the equipment and improves the detection efficiency and stability.

[0033] For details, please refer to the main references. Figures 3 to 6As shown, the first positioning assembly includes: a positioning seat 5, a side plate 6, a positioning bolt 7, a first guide rod 8, and a positioning clamp 9. The positioning seat 5 is fixedly installed on the movable seat 4; the side plate 6 is symmetrically fixedly installed on the positioning seat 5; the positioning bolt 7 rotates through the side plate 6 in the front-back direction and is threadedly connected to the side plate 6; the first guide rod 8 slides through the side plate 6 in the front-back direction; the positioning clamp 9 is fixedly installed at the ends of the positioning bolt 7 and the first guide rod 8; by rotating the positioning bolt 7, under the guidance of the first guide rod 8, the positioning clamp 9 is gradually moved closer to and tightly fitted to the side wall of the wire 1. By using the two sets of positioning clamps 9 correspondingly set on the side wall of the wire 1, the initial positioning of the two free ends of the wire 1 is achieved; with the synergistic effect of the side plate 6, the positioning bolt 7, the first guide rod 8, the positioning clamp 9, and other components, the ends of the wire 1 can be accurately clamped and positioned. Meanwhile, the spacing between each set of positioning clamps 9 is adjustable, allowing for flexible adjustment to a suitable spacing based on the different thicknesses of the steel wire 1, thereby meeting diverse testing and clamping requirements. Specifically, the inner wall of the positioning clamp 9 is arc-shaped, and an anti-slip pad is provided on the arc-shaped inner wall of the positioning clamp 9. The anti-slip pad further increases the friction between the positioning clamp 9 and the side wall of the steel wire 1, ensuring a more stable connection between the two.

[0034] The second positioning assembly includes: an extension rod 13, a support rod 14, a swing seat 15, a slide groove 16, a drive pin 17, and a clamping block 18. The extension rod 13 is fixedly installed on the side wall of the positioning seat 5, corresponding to the front and rear ends. The support rod 14 is fixedly and vertically installed on the worktable 2. The swing seat 15 is rotatably connected to the top of the support rod 14 via a bearing. The slide groove 16 is formed on the swing seat 15. The drive pin 17 is vertically and fixedly installed on the extension rod 13, and the drive pin 17 is slidably embedded in the inner cavity of the slide groove 16. The clamping block 18 is fixedly installed on the end of the swing seat 15.

[0035] When the positioning seat 5 moves outward, it sequentially drives the extension rod 13 and the drive pin 17 to move synchronously. The drive pin 17 slides along the inner cavity of the slide groove 16, thereby driving the swing seat 15 to rotate around the support rod 14. As the swing seat 15 rotates, the clamping block 18 installed at its end gradually approaches and clamps the side wall of the steel wire 1. This process achieves synchronous linkage with the tensioning action at both ends of the steel wire 1; that is, while the steel wire 1 is being stretched, the clamping block 18 can perform secondary clamping and limiting on its side wall. With the positioning fixture 9 having completed basic clamping, the clamping block 18 further strengthens the constraint effect on the side wall of the steel wire 1 by expanding the contact range with the steel wire 1 and increasing friction, significantly improving the stability during the clamping process.

[0036] Specifically, the clamping block 18 is configured as a rigid block with elasticity. In this embodiment, the clamping block 18 is a hard rubber, which is a vulcanized rubber with high hardness and strength, as well as a certain degree of elasticity. When subjected to external force, the clamping block 18 deforms little and can quickly return to its original shape. This ensures that the clamping block 18 can gradually fit and be positioned against the side wall of the steel wire 1 and deform to a certain extent under the drive of the rotating swing seat 15, so that it is tightly positioned against the side wall of the steel wire 1. When it is disengaged from the side wall of the steel wire 1, it can return to its original shape. It is sufficient to meet the above-mentioned usage requirements, and no further limitations or elaborations are required here.

[0037] The equipment also includes: a support frame 19 and a support opening 20. The support frame 19 is fixedly installed on the workbench 2 and is configured as n-shaped. The support opening 20 is opened on the upper surface of the middle part of the support frame 19. The steel wire 1 is placed in the inner cavity of the support opening 20. The steel wire 1 is placed at the support opening 20 to provide initial support for the steel wire 1.

[0038] In addition, the main references Figure 1 and Figure 3 As shown, a protective cover 21 is rotatably mounted on the workbench 2 via a pin. The protective cover 21 can be rotated and fastened to the middle of the steel wire 1 as needed. The protective cover 21 is made of a transparent material. This protective structure plays a dual role in the steel wire tensile test: on the one hand, it can effectively resist the impact of the flying debris generated when the steel wire breaks, providing a safety barrier for the test personnel and avoiding test risks; on the other hand, by utilizing its transparency, the test personnel can clearly observe the deformation, slippage and breakage of the steel wire during the tensile process, meeting the needs of real-time monitoring and data acquisition during the test, and ensuring that the test work is carried out safely and efficiently.

[0039] This equipment also includes: a PLC controller 3, which is installed on the top of the front side wall of the steel wire 1 and is electrically connected to the cylinder 10. The PLC controller 3 is a commercially available controller, a digital computing electronic system specifically designed for industrial applications. It uses a programmable memory to store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations. It controls various types of mechanical equipment or production processes through digital or analog input and output. It can control the electrical components in this application to start and stop and process other information. It uses a commercially available model, and its model will not be limited or described in detail here. The cylinder 10 is a commonly used self-locking cylinder, whose output end can stop at any position and lock. All the above components are existing components, and the model of the above existing components will not be limited or described in detail here.

[0040] It is worth noting that in this application, the steel wire is subjected to a tensile test after being immersed in a corrosive solution to complete the test of the prestressed hydrogen embrittlement sensitivity of the steel wire in a corrosive environment. This is prior art and will not be described or limited here.

[0041] The working principle of the complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire in this embodiment is as follows:

[0042] Place the steel wire 1 at the support opening 20 to initially support the steel wire 1; by rotating the positioning bolt 7, under the guidance of the first guide rod 8, the positioning clamp 9 is gradually moved closer and tightly fitted to the side wall of the steel wire 1. The initial positioning of the two free ends of the steel wire 1 is achieved by the two sets of positioning clamps 9 correspondingly set on the side wall of the steel wire 1.

[0043] When testing and inspecting the steel wire 1, the cylinders 10 on both sides are opened by the PLC controller 3. The cylinders 10 pull the corresponding moving seat 4 outward along the outer wall of the second guide rod 12, so that the positioning seat 5, the side plate 6 and the positioning fixture 9 after clamping and positioning in the side plate 6 are simultaneously subjected to the outward pulling force. At the same time, the outward moving positioning seat 5 causes the extension rod 13 to move synchronously, the extension rod 13 causes the drive pin 17 to move synchronously, the drive pin 17 moves along the inner cavity of the slide groove 16, causing the swing seat 15 to rotate around the support rod 14 as the axis, so that the clamping block 18 installed at the end of the swing seat 15 rotates and gradually clamps and fits against the side wall of the steel wire 1. That is, while the two ends of the steel wire 1 are pulled outward by force, the clamping block 18 simultaneously achieves further clamping and limiting of the side wall of the steel wire 1. On the basis of the basic clamping of the positioning fixture 9, the clamping block 18 strengthens the constraint on the side wall of the steel wire 1 by expanding the contact area and increasing the friction, thereby improving the clamping stability.

[0044] This utility model adopts a dual positioning method of basic clamping and enhanced constraint. On the basis of basic clamping by positioning fixture 9, clamping block 18 enhances the constraint on the side wall of steel wire 1 by expanding the contact area and increasing friction, thereby improving clamping stability and ensuring the accuracy of mechanical property testing. At the same time, the same power source is used to realize the synchronous driving of sample stretching and side wall clamping, simplifying the structure and improving testing efficiency and reliability.

[0045] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0046] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0047] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0048] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0049] Unless otherwise stated, the term "multiple" means two or more.

[0050] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0051] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire, used for testing steel wire (1), characterized in that: include: Workbench (2); The drive components are provided in two sets, and the two sets of drive components are symmetrically arranged on the left and right ends above the worktable (2). A first positioning component is connected to the output end of the driving component; A second positioning component is disposed on the side wall of the first positioning component; The first positioning component and the second positioning component are used to achieve dual positioning of the side wall of the steel wire (1).

2. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 1, characterized in that: Each group of driving components includes: Cylinder (10), the cylinder (10) is mounted horizontally above the worktable (2); A movable seat (4) is installed at the output end of the cylinder (10).

3. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 2, characterized in that: The first positioning component includes: Positioning seat (5), which is fixedly installed on the movable seat (4); Side plate (6), the side plate (6) is fixedly installed on the positioning seat (5) symmetrically front and back; A positioning bolt (7) is provided, which rotates through the side plate (6) in the front-back direction and is threadedly connected to the side plate (6). The first guide rod (8) slides through the side plate (6) in the front-back direction; A positioning clamp (9) is fixedly installed at the end of the positioning bolt (7) and the first guide rod (8).

4. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 3, characterized in that: The inner wall of the positioning fixture (9) is arc-shaped, and the arc-shaped inner wall of the positioning fixture (9) is provided with an anti-slip pad.

5. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 3, characterized in that: The second positioning component includes: Extension rod (13), which is fixedly installed on the side wall of the positioning seat (5) at the front and rear respectively; Support rod (14), which is fixed and vertically installed on the workbench (2); A swing seat (15) is rotatably connected to the top of the support rod (14); A slide (16) is provided on the swing seat (15); Drive pin (17), which is vertically and fixedly installed on the extension rod (13), and the drive pin (17) is slidably embedded in the inner cavity of the groove (16); A clamping block (18) is fixedly installed at the end of the swing seat (15).

6. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 5, characterized in that: The clamping block (18) is configured as a rigid block with elasticity.

7. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 1, characterized in that: Also includes: Support bracket (19), which is fixedly installed on the workbench (2) and is configured as n-shaped; The support opening (20) is located on the upper surface of the middle part of the support frame (19), wherein the steel wire (1) is placed in the inner cavity of the support opening (20).

8. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 1, characterized in that: A protective cover (21) is rotatably mounted on the workbench (2).

9. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 2, characterized in that: The driving component also includes: A fixing plate (11) is provided in a horizontal direction; The second guide rod (12) is fixedly installed horizontally between the two fixing plates (11); The movable seat (4) is slidably sleeved on the second guide rod (12).

10. The complete set of equipment for testing the hydrogen embrittlement sensitivity of prestressed steel wire according to claim 1, characterized in that: Also includes: The PLC controller (3) is installed on the top of the front side wall of the steel wire (1) and is electrically connected to the cylinder (10).

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