Elastic element storage damage detection method
By conducting micro and macroscopic damage analysis of elastic components and combining with the damage degree comparison table, the problem of difficulty in analyzing and classifying the damage of elastic components during storage is solved, and accurate judgment of the damage degree and the adoption of life-extending measures are achieved.
Patent Information
- Application Number
- CN202411560318.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-03-14
AI Technical Summary
The prior art is difficult to effectively analyze and classify the damage of elastic components during storage, which makes it difficult to take life-extended improvement measures and affect the service life of the product.
By conducting micro-damage analysis and macro-damage analysis on damaged elastic elements, micro-damage parameters and macro-damage parameters are obtained, and combined with the elastic element damage degree comparison table to determine the degree of damage.
It realizes accurate judgment of the degree of damage of elastic components, helps to classify storage faults and take life-extended measures, extends the service life of elastic components, and provides storage conditions to reduce failure rate.
Smart Images
Figure CN119619444A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of detection technology, and in particular to a method for detecting storage damage of an elastic element. Background Art
[0002] Due to the complexity of product storage failure mechanisms, product problems caused by factors such as design, process, materials, devices, environment, and service use will eventually be exposed during the storage process.
[0003] At present, due to the lack of in-depth analysis of storage failure mechanisms, the classification of storage failures and the subsequent adoption of life extension improvement measures have brought considerable difficulties. Elastic elements are an important part of folding and unfolding mechanism products. Research on damage detection methods for elastic elements that have been used or stored for many years can provide technical guidance for product design material selection, storage maintenance and storage environment control. Summary of the invention
[0004] In view of this, the purpose of the present application is to provide a method for detecting storage damage of an elastic element.
[0005] Based on the above purpose, the present application provides a method for detecting storage damage of an elastic element, comprising:
[0006] obtaining a damaged elastic element;
[0007] Performing micro damage analysis and macro damage analysis on the damaged elastic element to obtain micro damage parameters and macro damage parameters of the damaged elastic element;
[0008] The damage degree of the damaged elastic element is determined based on the micro damage parameter and the macro damage parameter.
[0009] Further, the determining the damage degree of the damaged elastic element based on the microscopic damage parameter and the macroscopic damage parameter includes:
[0010] Determine, based on the type of the damaged elastic element, a comparison table of elastic element damage degrees corresponding to the damaged elastic element;
[0011] Based on the microscopic damage parameter and the macroscopic damage parameter, the damage degree of the damaged elastic element is determined in the elastic element damage degree comparison table.
[0012] Furthermore, the process of establishing the elastic element damage degree comparison table includes:
[0013] Obtaining test samples of elastic elements;
[0014] Performing an accelerated storage test on the test sample to obtain an elastic element after the test, wherein the elastic element after the test has an acceleration time length label;
[0015] Performing a macro performance test on the elastic element after the test to obtain macro performance parameters;
[0016] Performing a microscopic performance test on the elastic element after the test to obtain microscopic performance parameters;
[0017] A comparison table of damage levels of the elastic element is obtained based on the acceleration duration label, the macroscopic performance parameter and the microscopic performance parameter.
[0018] Further, the determining the damage degree of the damaged elastic element in the elastic element damage degree comparison table based on the micro damage parameter and the macro damage parameter includes:
[0019] Based on the micro damage parameter, determine a first acceleration time length label in the elastic element damage degree comparison table, wherein the first acceleration time length label is an acceleration time length label corresponding to the micro damage parameter;
[0020] Based on the macro damage parameter, determine a second acceleration duration label in the elastic element damage degree comparison table, where the second acceleration duration label is the acceleration duration label corresponding to the macro damage parameter;
[0021] Based on the first acceleration duration label and the second acceleration duration label, the damage degree of the damaged elastic element is determined.
[0022] Furthermore, the microscopic damage analysis includes microscopic morphology analysis, microstructure analysis, grain size detection and crystal orientation analysis, and the microscopic performance parameters include crystal structure shape, average grain size, metallographic structure morphology, dislocation line density, average size of point-like precipitation phases inside grains and density of point-like precipitation phases.
[0023] Furthermore, the microscopic morphology is detected and analyzed by scanning electron microscopy to obtain the shape of the crystal structure.
[0024] Furthermore, microstructure analysis was performed using a transmission electron microscope and a metallographic microscope to obtain the metallographic structure morphology, point-like precipitation phase density, and dislocation line density.
[0025] Furthermore, the grain size is detected by optical microscopy to obtain the average grain size.
[0026] Furthermore, the crystal orientation analysis was performed by backscattered electron diffraction to obtain the average size of the point-like precipitated phase inside the grains.
[0027] Furthermore, the macro damage parameters include mechanical property parameters.
[0028] From the above, it can be seen that the elastic element storage damage detection method provided by the present application determines the damage degree of the damaged elastic element by performing microscopic damage analysis and macroscopic damage analysis on the damaged elastic element, and on this basis, performs damage degree analysis on the damaged elastic element after storage under different conditions, which is beneficial to classify storage faults of the damaged elastic element and take measures to extend the service life of the damaged elastic element, and is beneficial to judge the changes in the failure mechanism of the elastic element caused by different storage conditions, and conduct in-depth storage analysis of the elastic element, so as to provide storage conditions that reduce the failure rate of the elastic element when storing the elastic element. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0030] Figure 1 This is a flow chart of a method for detecting storage damage of an elastic element according to an embodiment of the present application;
[0031] Figure 2 A comparative schematic diagram of the torsion bar deformation in an embodiment of the present application;
[0032] Figure 3 Schematic diagram of the microscopic damage structure of the torsion bar in the embodiment of the present application Figure 1 ;
[0033] Figure 4 Schematic diagram of the microscopic damage structure of the torsion bar in the embodiment of the present application Figure 2 . DETAILED DESCRIPTION
[0034] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.
[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0036] As described in the background art, due to the complexity of the storage failure mechanism of products, product problems caused by factors such as design, process, materials, devices, environment or service use will eventually be exposed during the storage process.
[0037] At present, due to the lack of in-depth analysis of storage failure mechanisms, the classification of storage failures and the subsequent adoption of life extension improvement measures have brought considerable difficulties. Elastic elements are an important part of folding and unfolding mechanism products. Research on damage detection methods for elastic elements that have been used or stored for many years can provide technical guidance for product design material selection, storage maintenance and storage environment control.
[0038] Based on this, the present application provides a storage damage detection method for an elastic element to determine the degree of damage to a damaged elastic element, so as to provide technical guidance for subsequent storage maintenance of the elastic element, storage environment control, and design and material selection of the elastic element.
[0039] The embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0040] The present application provides a method for detecting storage damage of an elastic element, such as Figure 1 As shown, including:
[0041] Step S100, obtaining a damaged elastic element;
[0042] Specifically, the damaged elastic element may be an elastic element after storage or use, and the elastic element may be a spring or a torsion spring.
[0043] Step S200, performing micro damage analysis and macro damage analysis on the damaged elastic element to obtain micro damage parameters and macro damage parameters of the damaged elastic element;
[0044] Specifically, both the microscopic damage analysis and the macroscopic damage analysis need to be performed with the aid of tools, but the difference is that the macroscopic damage analysis focuses on the obvious and visible damage analysis of the damaged elastic element, such as: the elastic force of the spring, the length of the spring, the torque of the torsion spring, the offset of the torsion spring, the offset of the spring, etc. The microscopic damage analysis focuses on the magnified and non-obvious damage analysis of the damaged elastic element, such as: the tiny morphological changes produced on the surface of the elastic element.
[0045] Step S300: determining the damage degree of the damaged elastic element based on the micro damage parameter and the macro damage parameter.
[0046] Specifically, after obtaining the microscopic damage parameter and the macroscopic damage parameter of the damaged elastic element, they are compared with corresponding parameters of similar elastic elements after being stored for different years to confirm the damage intensity of the damaged elastic element.
[0047] Alternatively, the microscopic damage parameter and the macroscopic damage parameter are compared with corresponding parameters of the damaged elastic element when it is not damaged, so as to determine the damage intensity of the damaged elastic element.
[0048] The damage intensity can indicate the degree of damage to the damaged elastic element, and can provide guidance for the use of the damaged elastic element to avoid exceeding the capacity of the damaged elastic element during use.
[0049] In this embodiment, the damage degree of the damaged elastic element is determined by performing micro damage analysis and macro damage analysis on the damaged elastic element. On this basis, the damage degree of the damaged elastic element after storage under different conditions is analyzed. This is beneficial for classifying storage failures of the damaged elastic element and taking measures to extend the service life of the damaged elastic element. It is also beneficial for judging the changes in the failure mechanism of the elastic element caused by different storage conditions, conducting in-depth storage analysis of the elastic element, and providing storage conditions that reduce the failure rate of the elastic element when storing the elastic element.
[0050] In some embodiments, step S300: determining the damage degree of the damaged elastic element based on the micro damage parameter and the macro damage parameter comprises:
[0051] Step S301, determining an elastic element damage degree comparison table corresponding to the damaged elastic element based on the type of the damaged elastic element;
[0052] Specifically, according to the type of the damaged elastic element, a damage degree comparison table of elastic elements of the same type as the damaged elastic element is determined to obtain the damage degree of the damaged elastic element.
[0053] Exemplarily, if the damaged elastic element is a spring, a spring damage degree comparison table is used as a comparison table for determining the damage degree of the damaged elastic element.
[0054] It should be noted that the types and models of the elastic elements must be the same to avoid the situation where the same springs have different stiffness and elastic force, which affects the determination of the damage degree of the damaged elastic element and makes the damage degree meaningless.
[0055] Step S302: determining the damage degree of the damaged elastic element in the elastic element damage degree comparison table based on the micro damage parameter and the macro damage parameter.
[0056] Specifically, the damage degree corresponding to the microscopic damage parameter and the damage degree corresponding to the macroscopic damage parameter are respectively determined in the elastic element damage degree comparison table, and a compromise calculation is performed on the basis of the two damage degrees to confirm the damage degree of the damaged elastic element, and the difference between the two damage degrees is also conducive to further specific analysis of the macroscopic and microscopic damage conditions of the elastic element, so as to analyze the reasons for the deviation, which is conducive to storage optimization and production optimization of the elastic element.
[0057] In this embodiment, the damage degree of the damaged elastic element is determined through the micro damage parameters and the macro damage parameters under the control of the elastic element damage degree comparison table, and the micro damage parameters and the macro damage parameters are comprehensively analyzed to determine the damage degree of the damaged elastic element, which is beneficial to multi-dimensional analysis of the damaged elastic element and improves the accuracy of determining the damage degree of the damaged elastic element, thereby facilitating the practicality and promotion and applicability of the method.
[0058] In some embodiments, the process of establishing the elastic element damage degree comparison table includes:
[0059] Step S401, obtaining a test sample of the elastic element;
[0060] Specifically, a batch of elastic elements of the same type and specification are obtained as test samples to obtain a damage degree comparison table for elastic elements of this type and specification, so as to facilitate determining the damage degree of the damaged elastic element and determine the elastic element damage degree comparison table to be used as the basis.
[0061] In addition, thermodynamic methods are used to preliminarily analyze the degradation or failure mechanism of the test samples, determine the main environmental conditions that affect their degradation, study the changes in the failure mechanism of the test samples under different environmental conditions, and preliminarily determine the physical characteristic quantities of the degradation or failure mechanism, so as to conduct targeted accelerated storage tests on the test samples.
[0062] Step S402, performing an accelerated storage test on the test sample to obtain an elastic element after the test, wherein the elastic element after the test has an acceleration time length label;
[0063] Specifically, according to the preliminary analysis conclusion of the failure mechanism, the type of accelerated stress is selected, the accelerated stress level is designed, and the accelerated storage test is carried out to obtain degraded samples (i.e., samples after the test, elastic elements after the test) under various acceleration conditions (i.e., acceleration duration). As energy storage components, elastic elements should maintain a certain stress state during the accelerated storage test. For example, springs should maintain a certain compression ratio according to the working or use status, and temperature stress should be applied to carry out accelerated tests; torsion springs should maintain a certain torsion ratio according to the working or use status, and temperature stress should be applied to carry out accelerated tests.
[0064] Step S403, performing a macro performance test on the elastic element after the test to obtain macro performance parameters;
[0065] Specifically, for different types of elastic elements, the macro-performance testing methods are different. For example, the spring is tested for elastic force, and the macro-performance parameters include elastic force and height; the torsion spring is tested for torque, and the macro-performance parameters include torque and offset.
[0066] Step S404, performing a microscopic performance test on the elastic element after the test to obtain microscopic performance parameters;
[0067] Specifically, a microscopic damage analysis is performed on the elastic element after the test to observe whether the microscopic morphology or microscopic performance of the elastic element after the test has also changed with the increase of the test time. The microscopic damage analysis of the elastic element after the test mainly includes qualitative analysis of microscopic morphology such as metallography and transmission electron microscopy, and quantitative analysis of microstructure such as X-ray diffraction and electron diffraction, to obtain microscopic morphological structure images and failure physical characteristic content under different conditions.
[0068] The microscopic performance parameters include crystal structure shape, average grain size, metallographic structure morphology, dislocation line density, average size of point-like precipitation phases inside the grains, and density of point-like precipitation phases.
[0069] Step S405 , obtaining a comparison table of damage degrees of the elastic element based on the acceleration duration label, the macroscopic performance parameter and the microscopic performance parameter.
[0070] Specifically, for the elastic elements after the test with different acceleration time labels, the macro-performance parameters and the micro-performance parameters obtained by performing macro-performance tests and micro-performance tests on the elastic elements are combined to establish a comparison table of the degree of damage of the elastic elements.
[0071] Exemplarily, one of the acceleration duration labels corresponds to a set of the macro performance parameters and the micro performance parameters, so that the user can confirm the degree of damage based on the elastic element damage degree comparison table.
[0072] In some specific embodiments, the elastic element is used as a torsion bar assembly for example for testing. The torsion bar assembly is in a torsion state for a long time during storage. If the torque of the torsion bar assembly decreases after long-term storage, it cannot provide sufficient folding and unfolding power.
[0073] The objects of this accelerated storage test are three torsion bar assemblies with different technical conditions. Taking into account the temperature resistance range of the torsion bar material, the torsion bar assemblies after 15 years of storage were subjected to accelerated storage tests at different temperature stress levels. Preload was applied to the torsion bar according to the actual storage conditions. The stress conditions are shown in Table 1.
[0074] Table 1 Detailed description of the technical status of the torsion bar assembly
[0075]
[0076] By analyzing the appearance of the torsion bar assembly in different states, it can be found that within a reasonable temperature range, the appearance of the torsion bar assembly does not change significantly; but when the temperature is too high, due to the thermal expansion and contraction effect of the material and the reduction in the hardness of the torsion bar assembly material under high temperature, the torsion bar assembly will bend and deform, and cannot return to its original state at room temperature. Figure 2 shown.
[0077] As the accelerated storage test temperature and time increase, the torsion bar torque value (i.e., macroscopic performance parameter) also undergoes significant differences. The torque value comparison of torsion bar assemblies in different technical states is shown in Table 2.
[0078] Table 2 Comparison of torque parameters of different torsion bar assemblies
[0079]
[0080] The microscopic damage of the torsion bar assembly was analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), backscattered electron diffraction (EBSD), etc., and the obtained inverse pole figure distribution map (IPF map), intracrystalline average orientation error map (KAM map), electron diffraction pattern map, and metallographic structure morphology map were analyzed. The microscopic damage map is shown in Figure 3-4 shown.
[0081] By conducting a comprehensive comparative analysis of the parameters of the above-mentioned figures, a comparison table of microscopic damage parameters of the torsion bar is obtained as shown in Table 3.
[0082] Table 3 Comparison of microscopic damage analysis of torsion bars
[0083]
[0084] It can be seen from the above table that after long-term natural storage and accelerated storage tests, the parameters of the torsion bar assembly, such as the crystal structure shape, average grain size, dislocation line density, and point-like precipitation phase density, have undergone significant changes. Moreover, with the extension of the natural and accelerated storage test time, the change trend of the micro damage parameters is consistent. In terms of microstructure, it can be shown that the failure mechanism of the product natural storage and accelerated storage tests is consistent.
[0085] In some embodiments, step S302: determining the damage degree of the damaged elastic element in the elastic element damage degree comparison table based on the micro damage parameter and the macro damage parameter, comprises:
[0086] Step S302-1, based on the micro damage parameter, determining a first acceleration time length label in the elastic element damage degree comparison table, wherein the first acceleration time length label is an acceleration time length label corresponding to the micro damage parameter;
[0087] Specifically, the acceleration duration label adapted to the microscopic damage parameter, that is, the first acceleration duration label, is determined in the elastic element damage degree comparison table.
[0088] Exemplarily, the microscopic damage parameter is that the average size of the point-like precipitation phase inside the grain is 9.42 nm. Based on this, it can be determined from Table 3 that the first acceleration time label of the damaged elastic element is 15 years of storage.
[0089] Step S302-2, based on the macro damage parameter, determining a second acceleration duration label in the elastic element damage degree comparison table, wherein the second acceleration duration label is the acceleration duration label corresponding to the macro damage parameter;
[0090] Specifically, the acceleration duration label adapted to the macro damage parameter, that is, the second acceleration duration label, is determined in the elastic element damage degree comparison table.
[0091] Exemplarily, the macro damage parameter is a torque of 34 Nm, based on which it can be determined from Table 2 that the second acceleration time label of the damaged elastic element is 15 years of storage.
[0092] Step S302-3: determining the damage degree of the damaged elastic element based on the first acceleration duration label and the second acceleration duration label.
[0093] Specifically, the damage degree of the damaged elastic element is determined in combination with the first acceleration duration label and the second acceleration duration label, that is, a comprehensive analysis of the damage degree of the damaged elastic element is performed from the aspects of the macro damage parameters and the micro damage parameters, which is conducive to improving the accuracy of the damage degree.
[0094] Exemplarily, the first acceleration time label is 10 years of storage, and the second acceleration time label is 12 years of storage, then the acceleration time label of the damaged elastic element is determined to be 11 years of storage. On this basis, if the actual storage time of the damaged elastic element is 1 year, it can be determined that the degree of damage of the damaged elastic element is 11 / 1=11.
[0095] In some embodiments, the microscopic damage analysis includes microscopic morphology analysis, microstructure analysis, grain size detection and crystal orientation analysis, and the microscopic performance parameters include crystal structure shape, average grain size, metallographic structure morphology, dislocation line density, average size of point-like precipitation phases inside the grains, and point-like precipitation phase density.
[0096] Specifically, a microscopic damage analysis is performed on the damaged elastic element to assist in determining the macroscopic performance of the damaged elastic element from a microscopic perspective. Therefore, the microscopic damage analysis includes microscopic morphology analysis, microstructure analysis, grain size detection and crystal orientation analysis. Specific parameter analysis is performed on the impact of the damaged elastic element from the microstructure, thereby improving the detailed analysis of the elastic element and facilitating the effective detection of the physical characteristic quantities of microscopic damage to the elastic element.
[0097] In some embodiments, the shape of the crystal structure is obtained by performing microscopic morphology detection and analysis using a scanning electron microscope.
[0098] Specifically, a microscopic morphology photograph of the damaged elastic element is taken by a scanning electron microscope, and the crystal structure shape of the damaged elastic element is determined based on the obtained microscopic photograph.
[0099] In some embodiments, microstructure analysis is performed using a transmission electron microscope and a metallographic microscope to obtain the metallographic structure morphology, point-like precipitation phase density, and dislocation line density.
[0100] Specifically, microscopic structural photographs of the damaged elastic element are taken by a transmission electron microscope and a metallographic microscope, and analysis and calculation are performed based on the obtained photographs to obtain the metallographic structural morphology, point-like precipitation phase density and dislocation line density of the damaged elastic element.
[0101] In some embodiments, the grain size is measured by optical microscopy to obtain an average grain size.
[0102] Specifically, the damaged elastic element is photographed through an optical microscope, and the obtained photograph can clearly show the grains, which is convenient for subsequent identification and calculation of the grain size to obtain the average grain size of the damaged elastic element.
[0103] In some embodiments, crystal orientation analysis is performed by backscattered electron diffraction to obtain the average size of the point-like precipitated phase inside the grains.
[0104] Specifically, the crystal orientation of the damaged elastic element is analyzed by backscattered electron diffraction to provide a crystal orientation distribution diagram (ODF), which helps to understand the orientation distribution of the grains and further facilitates obtaining the average size of the point-like precipitated phase inside the grains.
[0105] The corresponding microscopic analysis carried out in the above manner can effectively detect the corresponding microscopic physical characteristic quantities of the damaged elastic element, which is beneficial to the microscopic damage analysis of the damaged elastic element and improves the accuracy and effectiveness of the microscopic damage analysis.
[0106] In some embodiments, the macro-damage parameters include mechanical property parameters.
[0107] Specifically, the macro damage parameters are parameters exhibited by the damaged elastic element, such as mechanical property parameters, dimensional parameters, etc.
[0108] Exemplarily, when the damaged elastic element is a spring, the corresponding macro-damage parameters are elastic force and length.
[0109] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0110] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.
[0111] In addition, when specific details are set forth to describe exemplary embodiments of the present application, it is apparent to those skilled in the art that the present application embodiments can be implemented without these specific details or when these specific details are varied. Therefore, these descriptions should be considered illustrative rather than restrictive.
[0112] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.
[0113] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the present application.
Claims
1. A method for detecting storage damage of an elastic element, characterized in that: include: obtaining a damaged elastic element; Performing micro damage analysis and macro damage analysis on the damaged elastic element to obtain micro damage parameters and macro damage parameters of the damaged elastic element; The damage degree of the damaged elastic element is determined based on the micro damage parameter and the macro damage parameter.
2. The elastic element storage damage detection method according to claim 1, characterized in that: The determining the damage degree of the damaged elastic element based on the microscopic damage parameter and the macroscopic damage parameter comprises: Determine, based on the type of the damaged elastic element, a comparison table of elastic element damage degrees corresponding to the damaged elastic element; Based on the microscopic damage parameter and the macroscopic damage parameter, the damage degree of the damaged elastic element is determined in the elastic element damage degree comparison table.
3. The elastic element storage damage detection method according to claim 2, characterized in that: The process of establishing the elastic element damage degree comparison table includes: Obtaining test samples of elastic elements; Performing an accelerated storage test on the test sample to obtain an elastic element after the test, wherein the elastic element after the test has an acceleration time length label; Performing a macro performance test on the elastic element after the test to obtain macro performance parameters; Performing a microscopic performance test on the elastic element after the test to obtain microscopic performance parameters; A comparison table of damage levels of the elastic element is obtained based on the acceleration duration label, the macroscopic performance parameter and the microscopic performance parameter.
4. The elastic element storage damage detection method according to claim 3, characterized in that: The determining the damage degree of the damaged elastic element in the elastic element damage degree comparison table based on the microscopic damage parameter and the macroscopic damage parameter comprises: Based on the micro damage parameter, determine a first acceleration time length label in the elastic element damage degree comparison table, wherein the first acceleration time length label is an acceleration time length label corresponding to the micro damage parameter; Based on the macro damage parameter, determine a second acceleration duration label in the elastic element damage degree comparison table, where the second acceleration duration label is the acceleration duration label corresponding to the macro damage parameter; Based on the first acceleration duration label and the second acceleration duration label, the damage degree of the damaged elastic element is determined.
5. The elastic element storage damage detection method according to claim 1, characterized in that: The microscopic damage analysis includes microscopic morphology analysis, microstructure analysis, grain size detection and crystal orientation analysis, and the microscopic performance parameters include crystal structure shape, average grain size, metallographic structure morphology, dislocation line density, average size of point-like precipitation phases inside grains and point-like precipitation phase density.
6. The elastic element storage damage detection method according to claim 5, characterized in that: The crystal structure shape is obtained by microscopic morphology detection and analysis using a scanning electron microscope.
7. The elastic element storage damage detection method according to claim 5, characterized in that: The microstructure morphology, point-like precipitation phase density and dislocation line density were obtained by transmission electron microscopy and metallographic microscopy.
8. The elastic element storage damage detection method according to claim 5, characterized in that: The grain size was measured by optical microscopy to obtain the average grain size.
9. The elastic element storage damage detection method according to claim 5, characterized in that: The average size of the point-like precipitates inside the grains was obtained by backscattered electron diffraction analysis of crystal orientation.
10. The elastic element storage damage detection method according to claim 3, characterized in that: The macro damage parameters include mechanical property parameters.
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