Comprehensive test device for material abrasion and fretting abrasion

Abstract

The utility model discloses a comprehensive test device for material abrasion and fretting abrasion. The comprehensive test device for material abrasion and fretting abrasion comprises an abrasion machine, an electrochemical workstation, a to-be-tested sample fixing module and a dual sample fixing module, the to-be-tested sample fixing module and the dual sample fixing module are assembled on the abrasion machine and are oppositely arranged, and the to-be-tested sample fixing module is used for fixing a to-be-tested sample; the dual sample fixing module is used for fixing a dual sample, the abrasion machine is used for driving a target surface of a to-be-tested sample to be in contact with a target surface of the dual sample and enabling the target surface of the to-be-tested sample to be in contact with the target surface of the dual sample to generate abrasion, and a working electrode of the electrochemical workstation is electrically connected with the to-be-tested sample fixing module and the dual sample fixing module. The counter electrode and the reference electrode of the electrochemical workstation are also electrically connected with the dual sample fixing module and are electrically connected with the corrosion medium through the dual sample fixing module.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of comprehensive test devices for material abrasion and fretting abrasion, belong to seawater anticorrosion engineering technical field. BACKGROUND

[0002] Ocean is an important part of human activities, and the development of marine resources becomes more and more important, among which marine environmental engineering equipment plays a key role in the development of marine resources. In recent years, the problem of material abrasion failure under the coupling action of multiple environmental factors is a major scientific and technical problem that affects the service safety of marine environmental engineering equipment. The equipment used in marine environment is not only affected by seawater corrosion, but also affected by wear between parts. The interaction between corrosion and wear is not a simple sum, but has a strong synergistic effect. If the sea platform works in the marine field for a long time, the abrasion damage of mechanical parts will be intensified, especially in the case of fretting wear of parts. It is not just point and surface wear, but direct contact between surfaces, plus short distance and high frequency, which leads to rust, surface spalling and other damages of parts, and finally leads to material failure.

[0003] Fretting refers to the relative motion of two tightly fitted contact surfaces with amplitude in micrometer level under vibration / temperature variation. Fretting abrasion is the damage of tightly fitted interface of mechanical components in electrolyte or other corrosive media (such as seawater, acid rain, corrosive atmosphere, etc.). From the perspective of tribology, it is a fretting phenomenon in corrosive media, and from the perspective of corrosion, it is a special corrosion behavior under fretting friction condition.

[0004] With the increasing economic development and increasing attention to territorial security in the South China Sea, the frequency of aircraft take-off and landing in the harsh marine environment of the South China Sea has increased dramatically, and major marine engineering and equipment construction have become more and more common, and the problem of corrosion and wear of parts has become increasingly prominent. According to statistics, the loss caused by marine corrosion and wear problem accounts for about 33% of the total corrosion every year, and the demand for new corrosion-resistant and wear-resistant protective coatings is very urgent. Therefore, how to select high-quality corrosion-resistant and wear-resistant materials has become a problem that we need to solve. SUMMARY

[0005] The main purpose of the utility model is to provide a kind of comprehensive test devices for material abrasion and fretting abrasion, to overcome the deficiencies in the prior art.

[0006] To achieve the foregoing utility model purposes, the utility model adopts the technical scheme comprising:

[0007] The utility model embodiment provides a kind of comprehensive test devices for material abrasion and fretting abrasion, comprising:

[0008] An abrasion machine, a sample-to-be-tested fixing module and a counterpart sample fixing module are assembled on the abrasion machine and oppositely arranged, and the abrasion machine is used to drive a target surface of the sample-to-be-tested and a target surface of the counterpart sample into contact and cause abrasion of the target surface of the sample-to-be-tested and the target surface of the counterpart sample;

[0009] The sample-to-be-tested fixing module is used to fix the sample-to-be-tested, and the counterpart sample fixing module is used to fix the counterpart sample, and the counterpart sample fixing module comprises an adjusting base, an abrasion cavity and a counterpart sample fixing member, the adjusting base is assembled on the abrasion machine, the abrasion cavity is fixedly arranged on the adjusting base, and the counterpart sample fixing member is arranged in the abrasion cavity, the abrasion cavity is used to accommodate the counterpart sample and a corrosion medium, the counterpart sample fixing member is used to fix the counterpart sample, and the adjusting base is provided with a horizontal adjusting structure, which is used to at least adjust a horizontal state of the adjusting base, so that the target surface of the sample-to-be-tested and the target surface of the counterpart sample are parallel.

[0010] Compared with the prior art, the advantages of the abrasion machine include:

[0011] The comprehensive test device for material abrasion and fretting abrasion can perform surface-to-surface abrasion between a target surface of a sample-to-be-tested and a target surface of a counterpart sample under different corrosion media, effectively simulates a real working condition environment of marine equipment parts, further studies the abrasion resistance between the surface of the sample-to-be-tested and the surface of the counterpart sample through two electrochemical signals of the sample-to-be-tested and the counterpart sample, effectively studies the abrasion and fretting abrasion performance of the sample-to-be-tested, and meanwhile, three horizontal adjusting bolts of the adjusting base can be adjusted to ensure that the counterpart sample is placed horizontally, so that better surface-to-surface abrasion is achieved, which is different from traditional ball-disc abrasion and is more in line with actual working condition application conditions. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 is a whole structure schematic view of a comprehensive test device for material abrasion and fretting abrasion provided in a typical embodiment case of the present application;

[0014] Figure 2 is a structure schematic view of a sample-to-be-tested fixing module in a typical embodiment case of the present application;

[0015] Figure 3 is a structural schematic view of the pair of sample fixing module in a typical embodiment case of the utility model;

[0016] Figure 4 is a sectional view of the pair of sample fixing module in a typical embodiment case of the utility model. DETAILED DESCRIPTION

[0017] In view of the deficiencies in the prior art, the present inventors have, through long-term research and a large amount of practice, been able to propose the technical solution of the utility model. The technical solution, its implementation process and principles will be further explained and described as follows.

[0018] The utility model embodiment provides a kind of for material abrasion and micro-abrasion Comprehensive test device, comprising:

[0019] Abrasion machine, sample to be tested fixed module and pair of sample fixing module, the sample to be tested fixed module and the pair of sample fixing module are assembled on the abrasion machine and are oppositely arranged, and the abrasion machine is used to drive the target surface of sample to be tested and the target surface of pair of sample contact and make the target surface of sample to be tested and the target surface of pair of sample contact occur abrasion;

[0020] The sample to be tested fixed module is used to fix sample to be tested;Pair of sample fixing module is used to fix pair of sample, and the pair of sample fixing module includes adjusting base, abrasion cavity, pair of sample fixing piece, the adjusting base is assembled on the abrasion machine, the abrasion cavity is fixedly arranged on the adjusting base, the pair of sample fixing piece is arranged in the abrasion cavity, the abrasion cavity is used to accommodate pair of sample and corrosion medium, and the pair of sample fixing piece is used to fix pair of sample;The adjusting base has horizontal adjusting structure, and the horizontal adjusting structure is used at least to adjust the horizontal state of the adjusting base, so that the target surface of sample to be tested and the target surface of pair of sample are parallel.

[0021] Further, the sample to be tested fixed module includes fixed sleeve, threaded fixing rod, at least two fixed screws, a part of the threaded fixing rod is arranged in the fixed sleeve and is threadedly connected with the fixed sleeve, at least two fixed screws are spaced apart along the circumference of the fixed sleeve and are threadedly connected with the fixed sleeve, the fixed screw extends into the inside of the fixed sleeve, and the space between the threaded fixing rod and at least two fixed screws in the inside of the fixed sleeve forms a sample to be tested fixing space for fixing the sample to be tested, and the threaded fixing rod, at least two fixed screws and the fixed sleeve are configured as a sample to be tested fixing structure for fixing the sample to be tested.

[0022] Further, the test sample fixing module further comprises a first electrical connector, one end of the first electrical connector extends into the test sample fixing space through the threaded fixing rod, the first electrical connector is electrically connected with the test sample fixed in the test sample fixing space, and the first electrical connector is used for electrical connection with the working electrode of the electrochemical workstation.

[0023] Further, the fixing sleeve, the threaded fixing rod and the fixing screw are insulating members.

[0024] Further, the horizontal adjusting structure comprises a level and a plurality of horizontal adjusting bolts, the horizontal adjusting bolts are threadedly connected with the main body of the adjusting base, the bottoms of the horizontal adjusting bolts are in movable contact or threadedly connected with the abrasion machine, and the horizontal adjusting bolts are distributed along the circumference of the adjusting base.

[0025] Further, the bottom of the abrasion cavity is provided with a plurality of fixing holes matched with the counter sample fixing members, and the counter sample fixing members are embedded in the fixing holes to form a counter sample fixing structure for fixing the counter sample.

[0026] Further, the fixing holes are threaded holes, and the counter sample fixing members are threadedly matched with the fixing holes.

[0027] Further, the bottom of the abrasion cavity is a stepped structure, and a plurality of fixing holes are distributed on the lateral step surface of the stepped structure.

[0028] Further, the bottom of the abrasion cavity is further provided with a positioning groove for accommodating the counter sample.

[0029] Further, the positioning groove is located on the step surface at the bottom of the abrasion cavity.

[0030] Further, the test sample fixing module further comprises a second electrical connector, a third electrical connector and a fourth electrical connector, the second electrical connector, the third electrical connector and the fourth electrical connector are arranged in the abrasion cavity, the second electrical connector is used for electrical connection with the counter sample and the working electrode of the electrochemical workstation, and the third electrical connector and the fourth electrical connector are respectively used for electrical connection with the counter electrode and the reference electrode of the electrochemical workstation.

[0031] In a more specific embodiment, the comprehensive test device for material abrasion and fretting abrasion further comprises an electrochemical workstation, the working electrode of the electrochemical workstation is electrically connected with the test sample and the counter sample, and the reference electrode and the counter electrode are electrically connected with the corrosion medium.

[0032] The technical solutions, implementation process and principles will be further explained in combination with the drawings and specific implementation cases. Unless specifically stated, the abrasion machine, electrochemical workstation, level meter and the like in the embodiments of the present application are known in the art, and the specific structures and equipment models and the like are not limited herein.

[0033] In a more specific embodiment, referring to Figures 1-4 A comprehensive test device for material abrasion and fretting abrasion, comprising an abrasion machine 60, an electrochemical workstation 10, a test sample fixing module 20, a counter sample fixing module 30, the test sample fixing module 20 and the counter sample fixing module 30 are assembled on the abrasion machine and oppositely arranged, the test sample fixing module 20 is used for fixing a test sample 40, the counter sample fixing module 30 is used for fixing a counter sample 50, the abrasion machine is used for driving the target surface of the test sample 40 and the target surface of the counter sample 50 to contact and cause abrasion between the target surface of the test sample 40 and the target surface of the counter sample 50, the working electrode 11 of the electrochemical workstation 10 is electrically connected with the test sample fixing module 20 and the counter sample fixing module 30, and is electrically connected with the test sample 40 and the counter sample 50 through the test sample fixing module 20 and the counter sample fixing module 30 respectively, the counter electrode 12 and the reference electrode 13 of the electrochemical workstation 10 are also electrically connected with the counter sample fixing module 30, and are electrically connected with the corrosion medium through the counter sample fixing module 30.

[0034] Specifically, the sample to be tested fixing module 20 is fixed at the upper end of the abrasion machine, the sample to be tested fixing module 20 comprises a fixing sleeve 21, a threaded fixing rod 22, at least two fixing screws 23 and a first electric connecting element 24, a part of the threaded fixing rod 22 is arranged in the fixing sleeve 21 and is threadedly connected with the fixing sleeve 21, the at least two fixing screws 23 are arranged along the circumference of the fixing sleeve 21 and are threadedly connected with the fixing sleeve 21, the fixing screws 23 extend into the inside of the fixing sleeve 21, in the inside of the fixing sleeve 21, the space between the threaded fixing rod 22 and the at least two fixing screws 23 forms a sample to be tested fixing space for fixing the sample to be tested 40, the threaded fixing rod 22, the at least two fixing screws 23 and the fixing sleeve 21 are configured as a sample to be tested fixing structure for fixing the sample to be tested, one end of the first electric connecting element 24 penetrates through the threaded fixing rod 22 and extends into the sample to be tested fixing space, the first electric connecting element 24 can be electrically connected with the sample to be tested 40 fixed in the sample to be tested fixing space, the first electric connecting element 24 is further electrically connected with the working electrode 11 of the electrochemical workstation 10, wherein the fixing sleeve 21, the threaded fixing rod 22 and the fixing screws 23 are all insulating members. More specifically, the first electric connecting element 24 is a metal wire, for example, the first electric connecting element 24 can be a copper wire and the like.

[0035] Specifically, the sample to be tested fixing module 20 is fixed at the upper end of the abrasion machine, the sample to be tested fixing module 20 comprises a fixing sleeve 21, a threaded fixing rod 22, at least two fixing screws 23 and a first electric connecting element 24, a part of the threaded fixing rod 22 is arranged in the fixing sleeve 21 and is threadedly connected with the fixing sleeve 21, the at least two fixing screws 23 are arranged along the circumference of the fixing sleeve 21 and are threadedly connected with the fixing sleeve 21, the fixing screws 23 extend into the inside of the fixing sleeve 21, in the inside of the fixing sleeve 21, the space between the threaded fixing rod 22 and the at least two fixing screws 23 forms a sample to be tested fixing space for fixing the sample to be tested 40, the threaded fixing rod 22, the at least two fixing screws 23 and the fixing sleeve 21 are configured as a sample to be tested fixing structure for fixing the sample to be tested, one end of the first electric connecting element 24 penetrates through the threaded fixing rod 22 and extends into the sample to be tested fixing space, the first electric connecting element 24 can be electrically connected with the sample to be tested 40 fixed in the sample to be tested fixing space, the first electric connecting element 24 is further electrically connected with the working electrode 11 of the electrochemical workstation 10, wherein the fixing sleeve 21, the threaded fixing rod 22 and the fixing screws 23 are all insulating members. More specifically, the first electric connecting element 24 is a metal wire, for example, the first electric connecting element 24 can be a copper wire and the like. Specifically, the sample to be tested fixing module 20 is fixed at the upper end of the abrasion machine, the sample to be tested fixing module 20 comprises a fixing sleeve 21, a threaded fixing rod 22, at least two fixing screws 23 and a first electric connecting element 24, a part of the threaded fixing rod 22 is arranged in the fixing sleeve 21 and is threadedly connected with the fixing sleeve 21, the at least two fixing screws 23 are arranged along the circumference of the fixing sleeve 21 and are threadedly connected with the fixing sleeve 21, the fixing screws 23 extend into the inside of the fixing sleeve 21, in the inside of the fixing sleeve 21, the space between the threaded fixing rod 22 and the at least two fixing screws 23 forms a sample to be tested fixing space for fixing the sample to be tested 40, the threaded fixing rod 22, the at least two fixing screws 23 and the fixing sleeve 21 are configured as a sample to be tested fixing structure for fixing the sample to be tested, one end of the first electric connecting element 24 penetrates through the threaded fixing rod 22 and extends into the sample to be tested fixing space, the first electric connecting element 24 can be electrically connected with the sample to be tested 40 fixed in the sample to be tested fixing space, the first electric connecting element 24 is further electrically connected with the working electrode 11 of the electrochemical workstation 10, wherein the fixing sleeve 21, the threaded fixing rod 22 and the fixing screws 23 are all insulating members. More specifically, the first electric connecting element 24 is a metal wire, for example, the first electric connecting element 24 can be a copper wire and the like.

[0036] Specifically, the adjusting base 31 has a horizontal adjusting structure, which is used to adjust the horizontal state of the adjusting base at least, so as to make the target surface of the sample to be tested and the target surface of the counterpart sample parallel. More specifically, the horizontal adjusting structure comprises a level 36 and a plurality of horizontal adjusting bolts 37, the level 36 is placed on the body of the adjusting base 31 or the counterpart sample 50, the horizontal adjusting bolts are threadedly connected with the body of the adjusting base, the bottom of the horizontal adjusting bolts is in movable contact or threadedly connected with the abrasion machine, and the horizontal adjusting bolts are distributed along the circumference of the adjusting base. By adjusting the height of the horizontal adjusting bolts, the adjusting base can be kept horizontal, so as to adjust the target surface of the counterpart sample to be horizontal, and the target surface of the sample to be tested and the target surface of the counterpart sample are parallel, so that better surface-to-surface abrasion is realized.

[0037] Specifically, the bottom of the abrasion cavity 32 is provided with a plurality of fixing holes 38, which are matched with the different specifications of the counterpart sample fixing members. The counterpart sample fixing members are embedded in the fixing holes 38 to form a counterpart sample fixing structure for fixing the counterpart sample. By arranging the counterpart sample fixing members in the fixing holes at different positions, the fixing of the counterpart samples with different shapes and sizes can be realized. More specifically, the bottom of the abrasion cavity 32 is a stepped structure 39, and a plurality of fixing holes 38 are distributed on the lateral step surface of the stepped structure 39. The stepped structure 39 can adapt to the fixing of the counterpart samples with different sizes and shapes, and further improves the application range of the counterpart sample fixing module 30. Exemplarily, the fixing holes are threaded holes, and the counterpart sample fixing members are threaded members, which are threadedly matched with the fixing holes.

[0038] Specifically, the bottom of the abrasion cavity is also provided with a positioning groove / hole 41, and the second electric connecting member 33 passes through the positioning groove / hole 41 and is electrically connected with the counterpart sample. Preferably, part of the second electric connecting member 33 can also be directly arranged in the positioning groove / hole 41. More specifically, the positioning groove is located on the step surface at the bottom of the abrasion cavity.

[0039] The comprehensive test device for material abrasion and fretting abrasion provided by the embodiment of the utility model can ensure the level of the couple sample and the sample to be tested, ensure the level of the contact surface during fretting abrasion, and better perform surface-to-surface abrasion; the surface-to-surface abrasion can evaluate the corrosion resistance of the material according to the electrochemical corrosion strength of different corrosion media, can evaluate the wear resistance of the material according to the load, frequency and the like of the friction testing machine arranged on the sample to be tested, and can further evaluate the wear resistance of the material according to the two electrochemical signals of the sample to be tested and the couple sample; the three can effectively simulate the real working condition environment of the offshore equipment parts, further study the wear resistance between the surface of the sample to be tested and the surface of the couple sample, effectively study the abrasion and fretting abrasion performance of the sample to be tested, thereby facilitating scientific prevention of early failure of the offshore equipment material, and judging the safe service period of the equipment parts.

[0040] The comprehensive test device for material abrasion and fretting abrasion provided by the embodiment of the utility model mainly realizes abrasion test in a surface-to-surface abrasion mode, the device is closer to the actual working condition application scene of mechanical parts, can perform surface-to-surface abrasion under different corrosion media, effectively simulates the real working condition environment of the offshore equipment parts, and can more effectively study the wear resistance and corrosion resistance under the abrasion and fretting abrasion state, study the coupling relationship between the wear and the corrosion medium, and determine the key influencing factors, thereby providing a reference for better screening of high-quality corrosion and wear resistant materials.

[0041] In the description of the utility model, it should be pointed out that the position or positional relationship of the terms "upper", "lower", "left", "right", "four corners" and "end" is based on the position or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the utility model.

[0042] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable persons skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. An integrated test device for material erosion and fretting erosion, characterized in that, The abrasion machine, the sample-to-be-tested fixing module and the counter sample fixing module are assembled on the abrasion machine and oppositely arranged, the abrasion machine is used to drive the target surfaces of the sample-to-be-tested and the counter sample into contact and cause abrasion of the target surfaces of the sample-to-be-tested and the counter sample. The sample-to-be-tested fixing module is used to fix the sample-to-be-tested, and the counter sample fixing module is used to fix the counter sample, the counter sample fixing module comprises an adjusting base, an abrasion cavity and a counter sample fixing member, the adjusting base is assembled on the abrasion machine, the abrasion cavity is fixedly arranged on the adjusting base, and the counter sample fixing member is arranged in the abrasion cavity, the abrasion cavity is used to accommodate the counter sample and the corrosion medium, the counter sample fixing member is used to fix the counter sample, and the adjusting base is provided with a horizontal adjusting structure which is used to at least adjust the horizontal state of the adjusting base, so that the target surfaces of the sample-to-be-tested and the counter sample are parallel. The sample-to-be-tested fixing module comprises a fixing sleeve, a threaded fixing rod and at least two fixing screws, a part of the threaded fixing rod is arranged in the fixing sleeve and is threadedly connected with the fixing sleeve, the at least two fixing screws are arranged in the circumferential direction of the fixing sleeve and are threadedly connected with the fixing sleeve, the fixing screws extend into the interior of the fixing sleeve, and the space between the threaded fixing rod and the at least two fixing screws in the interior of the fixing sleeve forms a sample-to-be-tested fixing space for fixing the sample-to-be-tested, and the threaded fixing rod, the at least two fixing screws and the fixing sleeve are configured as a sample-to-be-tested fixing structure for fixing the sample-to-be-tested.

2. The apparatus as claimed in claim 1, wherein: The sample-to-be-tested fixing module further comprises a first electric connecting member, one end of the first electric connecting member penetrates through the threaded fixing rod and extends into the sample-to-be-tested fixing space, the first electric connecting member can be electrically connected with the sample-to-be-tested fixed in the sample-to-be-tested fixing space, and the first electric connecting member is further used to be electrically connected with a working electrode of an electrochemical workstation.

3. The apparatus as claimed in claim 2, wherein: The fixing sleeve, the threaded fixing rod and the fixing screws are all insulating members.

4. The combined test device for material abrasion and fretting abrasion according to claim 2 or 3, characterized in that: The horizontal adjusting structure comprises a level and a plurality of horizontal adjusting bolts, the horizontal adjusting bolts are threadedly connected with the main body of the adjusting base, the bottom of the horizontal adjusting bolt is in movable contact or threadedly connected with the abrasion machine, and the plurality of horizontal adjusting bolts are distributed in the circumferential direction of the adjusting base.

5. The apparatus as claimed in claim 1, wherein: The cavity bottom of the abrasion cavity is provided with a plurality of fixing holes matched with the counter sample fixing member, and the counter sample fixing member is embedded in the fixing holes to form a counter sample fixing structure for fixing the counter sample.

6. The apparatus as claimed in claim 1, wherein: The fixing holes are threaded holes, and the counter sample fixing member is threadedly matched with the fixing holes. The cavity bottom of the abrasion cavity is in a stepped structure, and a plurality of fixing holes are distributed on the horizontal stepped surface of the stepped structure.

7. The apparatus as claimed in claim 6, wherein: The cavity bottom of the abrasion cavity is further provided with a positioning groove for accommodating the counter sample.

8. The apparatus as claimed in claim 7, wherein: The positioning groove is located on the stepped surface at the bottom of the abrasion cavity. ​ 9. The apparatus as claimed in claim 1, wherein: The sample to be tested fixing module further comprises a second electric connecting element, a third electric connecting element and a fourth electric connecting element, which are arranged in the corrosion cavity, the second electric connecting element is used for electrically connecting with the working electrode of the electrochemical workstation and the counter sample, and the third electric connecting element and the fourth electric connecting element are respectively used for electrically connecting with the counter electrode and the reference electrode of the electrochemical workstation.

10. The apparatus as claimed in claim 1, wherein, The electrochemical workstation is further provided, and the working electrode of the electrochemical workstation is electrically connected with the sample to be tested and the counter sample, and the reference electrode and the counter electrode are electrically connected with the corrosion medium.

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