Stress wear corrosion coupling experiment clamp
By designing stress wear corrosion coupling experimental fixtures, the problem of lack of stress wear-corrosion coupling experimental fixtures in the prior art is solved, and the performance evaluation of the material under extreme conditions is achieved, and the accuracy of life prediction is improved.
Patent Information
- Application Number
- CN202422479944.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The lack of fixtures for stress-wear-corrosion coupling experiments in the prior art leads to inaccurate prediction of material service life.
A stress wear corrosion coupled experimental fixture is designed, including a base, a left fixing block and a right slider. The spacing of the experimental plate can be adjusted through the lateral slide rail and loading bolts to perform friction wear, stress and corrosion experiments. It is suitable for different sample lengths, fixed on the friction wear test machine and can be immersed in the corrosion solution.
The performance evaluation of materials under extreme conditions is achieved, scientific basis is provided for material selection and design, and the accuracy of material service life prediction is improved.
Smart Images
Figure CN223284001U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of experimental equipment, in particular to a stress wear corrosion coupling experimental fixture. Background Art
[0002] Since the use of metals, and in the past two hundred years, the science and technology related to metals have developed rapidly, and many advanced technology products have been produced. They have been widely used in major fields such as materials science, mechanical engineering, and chemical engineering. For example, in the aerospace field, materials need to withstand extreme environmental conditions such as high temperature, high pressure, and high humidity. These reasons will cause stress, wear, corrosion and other damage to the products during service. These effects will be superimposed on each other, changing the internal structure of the metal and causing the geometric shape of the parts to change, thereby destroying the matching characteristics between the parts, reducing the working ability, and finally affecting the normal operation of the parts or the whole.
[0003] Stress-wear-corrosion coupling experiments can be used to evaluate the performance of material products under these extreme conditions, understand how the material's performance changes under different operating conditions, and assess its durability, reliability, and safety, providing a more scientific basis for the selection and design of mechanical component materials. However, there is a lack of test equipment and evaluation methods for the service behavior of metal materials under the multi-factor coupling of stress-wear-corrosion. Furthermore, when conducting stress-wear-corrosion coupling experiments, the lack of corresponding experimental fixtures for the coupling of stress, wear, and corrosion results in inaccurate predictions of the material's service life. Utility Model Content
[0004] In order to overcome the defect of lack of experimental fixtures in coupling experiments in the prior art, the utility model provides a stress wear corrosion coupling experiment fixture.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a stress wear corrosion coupling experimental fixture, comprising a base, a left fixed block and a right slider, a transverse slide rail is provided in the middle position of the base, the left fixed block is arranged at the left end of the transverse slide rail and is fixed to the base through a slider bolt, the right slider is slidably connected to the transverse slide rail, the left fixed block and the right slider are connected by a loading bolt, one end of the loading bolt is rotatably connected to the right side of the left fixed block, the other end of the loading bolt passes through the right slider and is threadedly connected to the right slider, a fixing threaded hole is provided on the base, and a locking threaded hole is provided on both the left fixed block and the right slider.
[0006] As a further improvement of the present invention, three locking threaded holes are provided along the vertical direction of the left fixed block and the right sliding block, and the locking threaded holes on the left fixed block and the locking threaded holes on the right sliding block are symmetrically provided.
[0007] As a further improvement of the present invention, the fixing threaded holes are symmetrically arranged on the bases at the front and rear sides of the left fixing block and the right sliding block.
[0008] As a further improvement of the present invention, the cross section of the transverse slide rail is an inverted isosceles trapezoidal structure.
[0009] As a further improvement of the present invention, a groove is provided on the upper surface of the transverse slide rail, and a limiting slide block matching the groove is provided on the right slide block.
[0010] As a further improvement of the present invention, two loading bolts are provided and symmetrically arranged on both sides of the transverse slide rail.
[0011] Compared with the prior art, the present invention has the following beneficial effects: in this solution, the test plate is fixed on the left fixed block and the right slider, and the spacing between the left fixed block and the right slider can be adjusted by adjusting the loading bolts. It can be applied to test plates with different sample lengths. The upper part of the test plate can be in contact with the friction ball, and the base can be fixed to the friction and wear testing machine by bolts to conduct friction and wear tests. By adjusting the loading bolts, tensile stress can be generated in the middle of the test plate to conduct stress tests. A fixed threaded hole is provided on the base, and it can be immersed in a sodium chloride solution to conduct corrosion tests. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0013] Figure 1 This is a structural schematic diagram of a stress wear corrosion coupling experiment fixture of the utility model.
[0014] Figure 2 It is a structural schematic diagram of the right sliding block and the horizontal sliding rail of the utility model.
[0015] In the figure: 1. Base; 2. Left fixed block; 3. Right slider; 4. Horizontal slide rail; 5. Slider bolt; 6. Loading bolt; 7. Fixing threaded hole; 8. Locking threaded hole; 9. Groove; 10. Limit slider. DETAILED DESCRIPTION
[0016] In order to make the technical solution and beneficial effects of the present invention more clearly understood, the present invention will be further described in detail below with reference to specific embodiments.
[0017] Reference Figure 1The embodiment of the utility model discloses a stress wear corrosion coupling experiment fixture, including a base 1, a left fixed block 2 and a right slider 3. A transverse slide rail 4 is provided in the middle position of the base 1. The left fixed block 2 is arranged at the left end of the transverse slide rail 4 and is fixed to the base 1 through a slider bolt 5. The right slider 3 is slidably connected to the transverse slide rail 4. The left fixed block 2 and the right slider 3 are connected by a loading bolt 6. One end of the loading bolt 6 is rotatably connected to the right side of the left fixed block 2, and the other end of the loading bolt 6 passes through the right slider 3 and is threadedly connected to the right slider 3. A fixing threaded hole 7 is provided on the base 1, and a locking threaded hole 8 is provided on both the left fixed block 2 and the right slider 3.
[0018] Among them, three locking threaded holes 8 are set along the vertical direction of the left fixed block 2 and the right sliding block 3, and the locking threaded holes 8 on the left fixed block 2 and the locking threaded holes 8 on the right sliding block 3 are symmetrically arranged.
[0019] The fixing threaded holes 7 are symmetrically arranged on the base 1 at the front and rear sides of the left fixing block 2 and the right sliding block 3. Two loading bolts 6 are provided and symmetrically arranged on both sides of the transverse slide rail 4.
[0020] Reference Figure 2 The cross section of the transverse slide rail 4 is an inverted isosceles trapezoidal structure, and a groove 9 is provided on the upper surface of the transverse slide rail 4. The right slider 3 is provided with a limiting slider 10 that matches the groove 9.
[0021] The base 1 can be fixed to the friction and wear testing machine with bolts and can be immersed in a sodium chloride solution. A transverse slide rail 4 is provided in the middle of the base 1. The left fixed block 2 is fixed to the base 1 and cannot move. The right slider 3 is limited to the transverse slide rail 4 and can move freely along the transverse slide rail 4.
[0022] The left fixed block 2 and the right slider 3 are connected by a loading bolt 6. One end of the loading bolt 6 is rotatably connected to the right side of the left fixed block 2, and the other end of the loading bolt 6 passes through the right slider 3 and is threadedly connected to the right slider 3. By adjusting the loading bolt 6, the distance between the left fixed block 2 and the right slider 3 can be adjusted.
[0023] First, level the left fixed block 2 and right slider 3, then install the test plate. Both the fixed block 2 and right slider 3 are equipped with threaded locking holes 8. Bolts are installed in these holes to secure the test plate. The upper portion of the test plate can be brought into contact with the friction ball for friction and wear testing. By adjusting the loading bolts 6, tensile stress can be generated in the center of the test plate for stress testing. The base 1 is equipped with threaded fixing holes 7, allowing it to be bolted to the friction and wear testing machine and immersed in a sodium chloride solution.
[0024] It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.
Claims
1. A stress wear corrosion coupling test fixture, characterized by: The invention comprises a base (1), a left fixed block (2) and a right slider (3), wherein a transverse slide rail (4) is provided in the middle of the base (1), the left fixed block (2) is arranged at the left end of the transverse slide rail (4) and is fixed to the base (1) by a slider bolt (5), the right slider (3) is slidably connected to the transverse slide rail (4), the left fixed block (2) and the right slider (3) are connected by a loading bolt (6), one end of the loading bolt (6) is rotatably connected to the right side of the left fixed block (2), the other end of the loading bolt (6) passes through the right slider (3) and is threadedly connected to the right slider (3), a fixing threaded hole (7) is provided on the base (1), and a locking threaded hole (8) is provided on both the left fixed block (2) and the right slider (3).
2. The stress wear corrosion coupling experiment fixture according to claim 1, characterized in that: Three locking threaded holes (8) are provided along the vertical direction of the left fixed block (2) and the right sliding block (3), and the locking threaded holes (8) on the left fixed block (2) and the locking threaded holes (8) on the right sliding block (3) are symmetrically provided.
3. The stress wear corrosion coupling experiment fixture according to claim 2, characterized in that: The fixing threaded holes (7) are symmetrically arranged on the base (1) at the front and rear sides of the left fixing block (2) and the right sliding block (3).
4. The stress wear corrosion coupling experiment fixture according to claim 3, characterized in that: The cross section of the transverse slide rail (4) is an inverted isosceles trapezoidal structure.
5. The stress wear corrosion coupling experiment fixture according to claim 4, characterized in that: The upper surface of the transverse slide rail (4) is provided with a groove (9), and the right slide block (3) is provided with a limiting slide block (10) that matches the groove (9).
6. The stress wear corrosion coupling experiment fixture according to claim 5, characterized in that: Two loading bolts (6) are provided and are symmetrically arranged on both sides of the transverse slide rail (4).