Method and device for analyzing antirust performance test data of metal product

Abstract

The invention discloses an anti-rust performance test data analysis method and device for a metal product, and relates to the technical field of metal product production. According to the anti-rust performance test data analysis method for the metal product, the metal product mechanical performance test data set is obtained and analyzed, whether the metal product mechanical performance of the metal product is qualified or not is judged, and if the metal product mechanical performance of the metal product is qualified, the anti-rust performance of the metal product is judged. If yes, the metal product is marked as that the mechanical performance of the metal product is qualified, and if the mechanical performance of the metal product is not qualified, the unqualified grade of the mechanical performance of the metal product is determined; the comprehensive evaluation method has the advantages that the performance of the metal product in practical application can be more comprehensively known by carrying out mechanical performance testing, environmental oxidation performance testing and anticorrosive coating performance testing on the metal product through the comprehensive evaluation mode, the performance under different environmental conditions can be evaluated, and the metal product suitable for a specific application environment can be selected.

Description

Technical Field

[0001] The invention relates to the technical field of metal product production, and in particular to a method and a device for analyzing anti-rust performance test data of metal products. Background Art

[0002] In the process of production and processing of metal sheets, in order to ensure that the metal sheets have good anti-rust and corrosion resistance during use, corresponding anti-rust performance tests are required, which can predict the performance and life of metal products in the actual use environment. In daily life, due to the requirements of functional and mechanical adaptability, multi-metal assemblies are common. In a corrosive environment, due to the difference in electrochemical activity between various metal materials, galvanic corrosion is very easy to form, which directly affects the performance of the equipment.

[0003] For example, the patent with announcement number: CN113158477B announces a multi-metal coupled corrosion simulation analysis method, which can effectively solve the problem of multi-metal material corrosion matching design in the equipment design process, identify corrosion hot spots, and take targeted measures. It is particularly suitable for small changes in multi-metal assemblies and repetitive corrosion matching design. It solves design problems before manufacturing prototypes and accelerates the development process of corrosion-resistant design.

[0004] Currently, the self-corrosion potential is used to rank a variety of metal materials, but the self-corrosion potential is affected by many factors. For example, under different environmental conditions, the self-corrosion potential may vary significantly. This change may cause the self-corrosion potential of the same metal product in different environments to be different, thus affecting the accuracy of material selection and anti-corrosion measures. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a method and device for analyzing anti-rust performance test data of metal products, which solves the problem that the self-corrosion potential is affected by multiple factors. For example, under different environmental conditions, the self-corrosion potential may vary significantly. Such changes may cause the self-corrosion potential of the same metal product in different environments to be different, thereby affecting the accuracy of material selection and anti-corrosion measures.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method for analyzing anti-rust performance test data of metal products, comprising the following steps: obtaining a metal product mechanical property test data set, and analyzing the metal product mechanical property test data set to determine whether the metal product mechanical property of the metal product is qualified, if the metal product mechanical property of the metal product is qualified, then the metal product is marked as having qualified metal product mechanical property, if the metal product mechanical property of the metal product is unqualified, then the metal product mechanical property unqualified level of the metal product is determined; obtaining a metal product environmental oxidation performance test data set of the metal product marked as having qualified metal product mechanical property, and analyzing the metal product environmental oxidation performance test data set to determine whether the metal product environmental oxidation performance of the metal product is qualified, if the metal product If the environmental oxidation performance of the metal product is qualified, the metal product is marked as the metal product with qualified environmental oxidation performance; if the environmental oxidation performance of the metal product is unqualified, the level of unqualified environmental oxidation performance of the metal product is determined; obtain the metal product anti-corrosion coating performance test data set of the metal product marked as the metal product with qualified environmental oxidation performance, and analyze the metal product anti-corrosion coating performance test data set to determine whether the metal product anti-corrosion coating performance of the metal product is qualified; if the metal product anti-corrosion coating performance of the metal product is qualified, the metal product is marked as the metal product anti-corrosion coating performance is qualified; if the metal product anti-corrosion coating performance of the metal product is unqualified, the level of unqualified anti-corrosion coating performance of the metal product is determined; obtain the anti-rust performance level of the metal product marked as the metal product anti-corrosion coating performance is qualified.

[0007] Furthermore, the anti-rust performance level of the metal product recorded as having qualified anti-corrosion coating performance is obtained by the specific analysis process of: obtaining the metal product mechanical property test qualified index, the metal product environmental oxidation performance test qualified index and the metal product anti-corrosion coating performance test qualified index; comprehensively processing the metal product mechanical property test qualified index, the metal product environmental oxidation performance test qualified index and the metal product anti-corrosion coating performance test qualified index to obtain the metal product anti-rust performance comprehensive index; comparing the metal product anti-rust performance comprehensive index with the corrosion levels corresponding to the metal product anti-rust performance comprehensive indexes stored in the database to obtain the anti-rust level corresponding to the metal product anti-rust performance comprehensive index.

[0008] Furthermore, the comprehensive index formula of the metal product anti-rust performance is: ; In the formula, It is the comprehensive index of anti-rust performance of metal products. It is the qualified index of the mechanical properties test of metal products. It is the qualified index of environmental oxidation performance test for metal products. It is the qualified index of the performance test of metal product anti-corrosion coating. It is the weight factor of the qualified index of the mechanical properties test of metal products stored in the database. It is the weight factor of the qualified index of the environmental oxidation performance test of metal products stored in the database. It is the weight factor of the metal product anti-corrosion coating performance test qualification index stored in the database. It is the proportional factor of the qualified index of the environmental oxidation performance test of metal products stored in the database.

[0009] Furthermore, the metal product mechanical property test data set includes fatigue strength, fatigue crack growth rate and total plastic strain; the specific analysis process of obtaining the metal product mechanical property test data set is: continuously applying cyclic stress to the metal product until fatigue cracks occur in the metal product, and analyzing the maximum stress that the metal product can withstand under the number of cycles to obtain fatigue strength; monitoring the fatigue cracks occurring in the metal product through crack monitoring equipment to obtain fatigue crack growth rate; performing difference calculation on the peak strain and residual strain in each cycle to obtain plastic strain, and accumulating the plastic strains calculated in all cycles to obtain total plastic strain.

[0010] Furthermore, if the metal product mechanical properties of the metal product are unqualified, the metal product mechanical properties unqualified level of the metal product is determined, and the specific analysis process is: the metal product mechanical properties test parameter data set stored in the database is integrated and analyzed with the metal product mechanical properties test data set to obtain the metal product mechanical properties test index, and the metal product mechanical properties test parameter data set stored in the database includes: fatigue strength parameter data, fatigue crack growth rate parameter data and total plastic strain parameter data; the metal product mechanical properties test index is compared with the metal product mechanical properties test qualified threshold value stored in the database; if the metal product mechanical properties test index is less than or equal to the metal product mechanical properties test qualified threshold value stored in the database, then the metal product mechanical properties of the metal product corresponding to the metal product mechanical properties test index are qualified, and the metal product mechanical properties The test index is recorded as the qualified index of the mechanical properties test of the metal product; if the mechanical properties test index of the metal product is greater than the qualified threshold value of the mechanical properties test of the metal product stored in the database, the metal product mechanical properties of the metal product corresponding to the mechanical properties test index of the metal product are unqualified, and the mechanical properties test index of the metal product is recorded as the unqualified evaluation value of the mechanical properties of the metal product; the unqualified evaluation value of the mechanical properties of the metal product is compared with the reference evaluation value of the mechanical properties of the metal product stored in the database; if the unqualified evaluation value of the mechanical properties of the metal product is lower than or equal to the reference evaluation value of the mechanical properties of the metal product stored in the database, the evaluation level of the unqualified evaluation value of the mechanical properties of the metal product is marked as level one; if the unqualified evaluation value of the mechanical properties of the metal product is higher than the reference evaluation value of the mechanical properties of the metal product stored in the database, the evaluation level of the unqualified evaluation value of the mechanical properties of the metal product is marked as level two.

[0011] Furthermore, the metal product environmental oxidation performance test data set includes the oxide layer thickness within a set time, the oxidation rate within a set time, and the metal product conductivity within a set time; the specific analysis process of obtaining the metal product environmental oxidation performance test data set is: obtaining the morphology of the oxide layer of the metal product, measuring and analyzing the morphology of the oxide layer at set time intervals to obtain the oxide layer thickness within a set time, the oxidation rate within a set time, and the metal product conductivity within a set time.

[0012] Furthermore, if the metal product environmental oxidation performance of the metal product is unqualified, the metal product environmental oxidation performance unqualified level of the metal product is determined, and the specific analysis process is: the metal product environmental oxidation performance test parameter data set stored in the database is integrated and analyzed with the metal product environmental oxidation performance test data set to obtain the metal product environmental oxidation performance test index, and the metal product environmental oxidation performance test parameter data set stored in the database includes: oxide layer thickness parameter data within a set time, oxidation rate parameter data within a set time, and metal product conductivity parameter data within a set time; the metal product environmental oxidation performance test index is compared with the metal product environmental oxidation performance test qualified threshold interval stored in the database; if the metal product environmental oxidation performance test index falls within the metal product environmental oxidation performance test qualified threshold interval stored in the database, then the metal product environmental oxidation performance test index corresponds to the metal product environmental oxidation performance test index. If the metal product environmental oxidation performance of the product is qualified, the metal product environmental oxidation performance test index is recorded as the metal product environmental oxidation performance test qualified index; if the metal product environmental oxidation performance test index does not fall within the metal product environmental oxidation performance test qualified threshold range stored in the database, the metal product environmental oxidation performance test index is recorded as the metal product environmental oxidation performance unqualified assessment value; the metal product environmental oxidation performance unqualified assessment value is compared with the metal product environmental oxidation performance reference threshold stored in the database; if the metal product environmental oxidation performance unqualified assessment value is lower than or equal to the metal product environmental oxidation performance reference threshold stored in the database, the metal product mechanical property unqualified assessment value assessment level is marked as level one; if the metal product environmental oxidation performance unqualified assessment value is higher than the metal product mechanical environmental oxidation performance reference threshold stored in the database, the metal product mechanical property unqualified assessment value assessment level is marked as level two.

[0013] Furthermore, the metal product anti-corrosion coating performance test data set includes coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance; the metal product anti-corrosion coating performance test data set, the specific analysis process is: applying a tensile test and a scratch test to the metal product anti-corrosion coating, analyzing the degree of detachment of the anti-corrosion coating to obtain coating adhesion data; evaluating the coating anti-penetration performance by measuring the amount of water vapor passing through the anti-corrosion coating within a specified time; obtaining the coating chemical corrosion resistance by analyzing the corrosiveness of the anti-corrosion coating in acid, alkali and salt solutions; the metal product anti-corrosion coating performance of the metal product is unqualified. The specific analysis process is as follows: the metal product anti-corrosion coating performance test parameter data set stored in the database is integrated and analyzed with the metal product anti-corrosion coating performance test data set to obtain the metal product anti-corrosion coating performance test index, wherein the metal product anti-corrosion coating performance test parameter data set stored in the database includes coating adhesion parameter data, coating anti-penetration performance parameter data and coating chemical corrosion resistance parameter data; the metal product anti-corrosion coating performance test index is compared with the metal product anti-corrosion coating performance test qualified threshold value stored in the database; if the metal product anti-corrosion coating performance test index is less than or equal to the metal product anti-corrosion coating performance test qualified threshold value stored in the database, then the metal product anti-corrosion coating performance of the metal product corresponding to the metal product anti-corrosion coating performance test index is qualified, and the metal product anti-corrosion coating performance test index is recorded as the metal product anti-corrosion coating performance test qualified index; if the metal product anti-corrosion coating performance test index is greater than the metal product anti-corrosion coating performance test qualified threshold value stored in the database, then the metal product anti-corrosion coating performance of the metal product corresponding to the metal product anti-corrosion coating performance test index is unqualified, and the metal product anti-corrosion coating performance test The index is recorded as the unqualified performance assessment value of the anti-corrosion coating of metal products; the unqualified performance assessment value of the anti-corrosion coating of metal products is compared with the performance parameter threshold of the anti-corrosion coating of metal products stored in the database; if the unqualified performance assessment value of the anti-corrosion coating of metal products is lower than or equal to the performance parameter threshold of the anti-corrosion coating of metal products stored in the database, the assessment level of the unqualified performance assessment value of the anti-corrosion coating of metal products is marked as level one; if the unqualified performance assessment value of the anti-corrosion coating of metal products is higher than the performance parameter threshold of the anti-corrosion coating of metal products stored in the database, the assessment level of the unqualified mechanical performance assessment value of the metal product is marked as level two.

[0014] Furthermore, the metal product anti-corrosion coating performance test parameter data set stored in the database is fused and analyzed with the metal product anti-corrosion coating performance test data set to obtain the metal product anti-corrosion coating performance test index. The specific analysis process is: the coating adhesion is subtracted from the parameter coating adhesion stored in the database to obtain the coating adhesion difference; the coating anti-permeability performance is subtracted from the parameter coating anti-permeability performance stored in the database to obtain the coating anti-permeability performance difference; the coating chemical corrosion resistance is subtracted from the parameter coating chemical corrosion resistance stored in the database to obtain the coating chemical corrosion resistance difference; the coating adhesion difference, coating anti-permeability performance difference and coating chemical corrosion resistance difference are processed to obtain the metal product anti-corrosion coating performance test index.

[0015] A device for analyzing anti-rust performance test data of metal products, comprising a metal product mechanical property test module, a metal product environmental oxidation performance test module, a metal product anti-corrosion coating performance test module and a qualified grade classification module, wherein: the metal product mechanical property test module is used to obtain a metal product mechanical property test data set, and analyze the metal product mechanical property test data set to determine whether the metal product mechanical property of the metal product is qualified; if the metal product mechanical property of the metal product is qualified, the metal product is marked as having qualified metal product mechanical property; if the metal product mechanical property of the metal product is unqualified, the metal product mechanical property unqualified grade of the metal product is determined; the metal product environmental oxidation performance test module is used to obtain a metal product environmental oxidation performance test data set of metal products marked as having qualified metal product mechanical property, and analyze the metal product environmental oxidation performance test data set to determine whether the metal product environmental oxidation performance of the metal product is qualified. Whether the performance is qualified, if the metal product environmental oxidation performance of the metal product is qualified, the metal product is marked as the metal product environmental oxidation performance qualified, if the metal product environmental oxidation performance of the metal product is unqualified, the metal product environmental oxidation performance unqualified level is determined; the metal product anti-corrosion coating performance testing module is used to obtain the metal product anti-corrosion coating performance test data set of the metal product marked as the metal product environmental oxidation performance qualified, and analyze the metal product anti-corrosion coating performance test data set to determine whether the metal product anti-corrosion coating performance of the metal product is qualified, if the metal product anti-corrosion coating performance of the metal product is qualified, the metal product is marked as the metal product anti-corrosion coating performance qualified, if the metal product anti-corrosion coating performance of the metal product is unqualified, the metal product anti-corrosion coating performance unqualified level is determined; the qualified level classification module is used to obtain the anti-rust performance level of the metal product marked as the metal product anti-corrosion coating performance qualified.

[0016] The present invention has the following beneficial effects: The method and device for analyzing the anti-rust performance test data of metal products conduct mechanical property tests, environmental oxidation performance tests and anti-corrosion coating performance tests on metal products. This comprehensive evaluation method can provide a more comprehensive understanding of the performance of metal products in actual applications. The mechanical properties and anti-corrosion coating performance of metal products are relatively more stable, making the self-corrosion potential less susceptible to environmental changes, such as temperature, humidity and solution composition. The performance under different environmental conditions can be evaluated, and the advantages of metal products suitable for specific application environments can be selected, which solves the problem that the self-corrosion potential is affected by multiple factors. For example, under different environmental conditions, the self-corrosion potential may vary significantly. This change may cause the self-corrosion potential of the same metal product in different environments to be different, thereby affecting the accuracy of material selection and anti-corrosion measures.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a flow chart of the anti-rust performance test data analysis method of the metal product.

[0019] Figure 2 It is an image of the change of the qualified index evaluation value of the metal product anti-corrosion coating performance test with the coating adhesion difference value of the present invention.

[0020] Figure 3 The present invention is a flow chart of the data analysis device for testing the anti-rust performance of metal products. DETAILED DESCRIPTION

[0021] The embodiments of the present application solve the problem that the self-corrosion potential is affected by various factors through a method and device for analyzing anti-rust performance test data of metal products. For example, under different environmental conditions, the self-corrosion potential may vary significantly. Such changes may cause the self-corrosion potential of the same metal product to be different in different environments, thereby affecting the accuracy of material selection and anti-corrosion measures.

[0022] The overall idea of ​​the problem in the embodiment of this application is as follows: First, perform mechanical property tests on metal products to obtain mechanical test data, and grade metal products that fail the mechanical test; perform environmental oxidation tests on metal products that pass the mechanical test to obtain environmental oxidation test data, and grade metal products that fail the environmental oxidation test; perform anti-corrosion coating tests on metal products that pass the environmental oxidation test to obtain anti-corrosion coating test data, grade metal products that fail the anti-corrosion coating, and grade metal products that pass the anti-corrosion coating.

[0023] See also Figure 1The embodiment of the present invention provides a technical solution: a method for analyzing anti-rust performance test data of metal products, comprising the following steps: obtaining a metal product mechanical property test data set, analyzing the metal product mechanical property test data set, judging whether the metal product mechanical property of the metal product is qualified, if the metal product mechanical property of the metal product is qualified, marking the metal product as having qualified metal product mechanical property, if the metal product mechanical property of the metal product is unqualified, determining the metal product mechanical property unqualified level of the metal product; obtaining a metal product environmental oxidation performance test data set of the metal product marked as having qualified metal product mechanical property, analyzing the metal product environmental oxidation performance test data set, judging whether the metal product environmental oxidation performance of the metal product is qualified, if the metal product environmental If the oxidation performance is qualified, the metal product is marked as a metal product with qualified environmental oxidation performance; if the metal product's environmental oxidation performance is unqualified, the metal product's unqualified environmental oxidation performance level is determined; obtain a metal product anti-corrosion coating performance test data set of the metal product marked as metal product environmental oxidation performance qualified, and analyze the metal product anti-corrosion coating performance test data set to determine whether the metal product's anti-corrosion coating performance is qualified; if the metal product's anti-corrosion coating performance is qualified, the metal product is marked as a metal product with qualified anti-corrosion coating performance; if the metal product's anti-corrosion coating performance is unqualified, the metal product's unqualified anti-corrosion coating performance level is determined; obtain the anti-rust performance level of the metal product marked as metal product anti-corrosion coating performance qualified.

[0024] Specifically, the anti-rust performance level of the metal product recorded as having qualified anti-corrosion coating performance is obtained through the following specific analysis process: obtaining the qualified index of the metal product mechanical property test, the qualified index of the metal product environmental oxidation performance test and the qualified index of the metal product anti-corrosion coating performance test; comprehensively processing the qualified index of the metal product mechanical property test, the qualified index of the metal product environmental oxidation performance test and the qualified index of the metal product anti-corrosion coating performance test to obtain the comprehensive anti-rust performance index of the metal product; comparing the comprehensive anti-rust performance index of the metal product with the corrosion levels corresponding to the comprehensive anti-rust performance indexes of each metal product stored in the database to obtain the anti-rust level corresponding to the comprehensive anti-rust performance index of the metal product.

[0025] In this implementation plan, the mechanical property test data, environmental oxidation performance test data and anti-corrosion coating performance test data of metal products are integrated and analyzed. The comprehensive processing includes analysis of each data set, standardization processing and possible data conversion to ensure data comparability and consistency. The comprehensive anti-rust performance index of metal products is obtained by weighted summation of the comprehensively processed data. The obtained comprehensive anti-rust performance index of metal products is compared with the corrosion level corresponding to the comprehensive anti-rust performance index of each metal product stored in the database. According to the comparison result, the anti-rust performance level of the metal product is determined, which helps users understand its corrosion resistance under different environmental conditions. By comprehensively processing different performance data, a comprehensive anti-rust performance evaluation index is provided, which reflects the actual performance of metal products under various conditions. Based on the set corrosion level standard, the anti-rust performance of metal products is objectively evaluated and classified, providing a basis for product quality control.

[0026] Specifically, the formula for the comprehensive index of the metal product anti-rust performance is: ; In the formula, It is the comprehensive index of anti-rust performance of metal products. It is the qualified index of the mechanical properties test of metal products. It is the qualified index of environmental oxidation performance test for metal products. It is the qualified index of the performance test of metal product anti-corrosion coating. It is the weight factor of the qualified index of the mechanical properties test of metal products stored in the database. It is the weight factor of the qualified index of the environmental oxidation performance test of metal products stored in the database. It is the weight factor of the metal product anti-corrosion coating performance test qualification index stored in the database. It is the proportional factor of the qualified index of the environmental oxidation performance test of metal products stored in the database.

[0027] In this implementation scheme, the comprehensive index of metal product anti-rust performance is obtained through the metal product mechanical property index, metal product environmental oxidation performance index and metal product anti-corrosion coating performance index. Each index reflects the anti-rust ability of metal products in different aspects, and combining them into a comprehensive index can provide a more comprehensive anti-rust performance evaluation. The comprehensive index of metal product anti-rust performance not only reflects the performance of metal products in a single test, but also considers how these properties interact to provide the best anti-rust effect. This comprehensive consideration makes the evaluation results more accurate and helps manufacturers and users understand the overall durability and reliability of metal products in actual use environments. The metal product mechanical property index reflects the strength, hardness and other mechanical properties of metal products. A high mechanical property index means that the metal product can withstand greater force and pressure, which can reduce wear and tear and extend the service life of the metal product. The environmental oxidation performance index evaluates the anti-oxidation ability of metal products under specific environmental conditions. A high environmental oxidation performance index protects metal products from rust and corrosion, and is particularly suitable for chemical, marine and humid environments. A logarithmic function is used. Treatment environment oxidation performance, including is the proportional factor used to adjust The bottom number processing helps to balance the impact of high values ​​on the total index and make its growth more gradual. The proportional factor is obtained from the database. In a specific embodiment, a mapping set of metal product environmental oxidation performance index and proportional factor is established through the relationship between the metal product environmental oxidation performance index and the metal product antirust performance comprehensive index in the historical data. The current metal product environmental oxidation performance index is input into the mapping set to obtain the proportional factor of the metal product environmental oxidation performance index. The anti-corrosion coating performance index measures the quality and effect of the anti-corrosion coating on the surface of metal products. An effective anti-corrosion coating can significantly extend the life of metal products by preventing contact between corrosive media and metal products. The square root Addressing the performance of the anti-corrosion coating helps reduce the sensitivity of the high performance value, making the impact of performance improvements on the total score gradually decrease. , , , is the weight factor of the metal product mechanical performance index, metal product environmental oxidation performance index and metal product anti-corrosion coating performance index, reflecting the importance of each performance index in the overall evaluation.

[0028] The weight factor is obtained from the database. In a specific embodiment, a mapping set of the mechanical performance index of metal products, the environmental oxidation performance index of metal products, the anti-corrosion coating performance index of metal products and the weight factor is established through the relationship between the mechanical performance index of metal products, the environmental oxidation performance index of metal products, the anti-corrosion coating performance index of metal products and the comprehensive index of anti-rust performance of metal products in the historical data, and the current mechanical performance index of metal products, the environmental oxidation performance index of metal products and the anti-corrosion coating performance index of metal products are input into the mapping set to obtain the weight factor of the mechanical performance index of metal products, the environmental oxidation performance index of metal products and the anti-corrosion coating performance index of metal products.

[0029] Specifically, the metal product mechanical property test data set includes fatigue strength, fatigue crack growth rate and total plastic strain; the specific analysis process of obtaining the metal product mechanical property test data set is: continuously applying cyclic stress to the metal product until fatigue cracks occur in the metal product, and analyzing the maximum stress that the metal product can withstand under the number of cycles to obtain fatigue strength; monitoring the fatigue cracks occurring in the metal product through crack monitoring equipment to obtain the fatigue crack growth rate; performing difference calculation on the peak strain and residual strain in each cycle to obtain the plastic strain, and accumulating the plastic strains calculated in all cycles to obtain the total plastic strain.

[0030] In this embodiment, fatigue strength analysis is used to evaluate the durability and life of metal products under repeated loading. Cyclic stress is continuously applied to the metal products at each stress level in turn by a fatigue testing machine until fatigue failure occurs to the metal products, that is, significant cracks or complete fractures appear. For each stress level, the number of cycles required to reach fatigue failure and the specific stress value of each test are collected. The collected data points are used to draw a stress-life SN curve on a double logarithmic coordinate paper. The SN curve shows the fatigue life of metal products at different stress levels and can be used to predict the theoretical life of metal products at any given stress. By analyzing the SN curve, the number of cycles that the metal product can withstand under the highest stress can be determined, which helps to evaluate the performance limit of the metal product. Fatigue crack growth rate is an important parameter to measure the crack growth rate of a material under fatigue load. The use of high-precision crack monitoring equipment, such as a scanning electron microscope or a high-resolution camera, can provide a clear image of the crack edge for accurate measurement of crack length and ensure that the starting point of the crack is known. During the period of cyclic stress on metal products, the change in crack length is recorded regularly, and the data of crack length and number of cycles are collected and analyzed using software tools, such as ImageJ and MATLAB. The crack growth rate is calculated, that is, the increase in crack length divided by the corresponding number of cycles to obtain the fatigue crack growth rate. By understanding the crack growth rate of metal products under specific stress conditions, the fracture toughness of metal products can be evaluated. Metal products with high fracture toughness can maintain structural integrity in the presence of cracks, thereby providing higher safety protection. Total plastic strain analysis is a key test for evaluating deformation and damage accumulation of materials under cyclic stress. In fatigue testing, specific cyclic stresses such as tension, compression or bending are applied to each cyclic load. Strain gauges or other strain measuring devices are used to record peak strain and residual strain in each cycle. Plastic strain = peak strain - residual strain. The total plastic strain is accumulated in all cycles to obtain the total plastic strain. The total plastic strain provides direct data to evaluate the deformation capacity of metal products under repeated loading. High total plastic strain values ​​indicate that metal products are more susceptible to permanent deformation under cyclic stress.

[0031] Specifically, if the metal product mechanical properties of the metal product are unqualified, the metal product mechanical properties unqualified level of the metal product is determined, and the specific analysis process is: the metal product mechanical properties test parameter data set stored in the database is integrated and analyzed with the metal product mechanical properties test data set to obtain the metal product mechanical properties test index, and the metal product mechanical properties test parameter data set stored in the database includes: fatigue strength parameter data, fatigue crack growth rate parameter data and total plastic strain parameter data; the metal product mechanical properties test index is compared with the metal product mechanical properties test qualified threshold stored in the database; if the metal product mechanical properties test index is less than or equal to the metal product mechanical properties test qualified threshold stored in the database, then the metal product mechanical properties of the metal product corresponding to the metal product mechanical properties test index are qualified, and the metal product mechanical properties The test index is recorded as the qualified index of the mechanical properties test of the metal product; if the mechanical properties test index of the metal product is greater than the qualified threshold value of the mechanical properties test of the metal product stored in the database, the metal product mechanical properties of the metal product corresponding to the mechanical properties test index of the metal product are unqualified, and the mechanical properties test index of the metal product is recorded as the unqualified evaluation value of the mechanical properties of the metal product; the unqualified evaluation value of the mechanical properties of the metal product is compared with the reference evaluation value of the mechanical properties of the metal product stored in the database; if the unqualified evaluation value of the mechanical properties of the metal product is lower than or equal to the reference evaluation value of the mechanical properties of the metal product stored in the database, the evaluation level of the unqualified evaluation value of the mechanical properties of the metal product is marked as level one; if the unqualified evaluation value of the mechanical properties of the metal product is higher than the reference evaluation value of the mechanical properties of the metal product stored in the database, the evaluation level of the unqualified evaluation value of the mechanical properties of the metal product is marked as level two.

[0032] In this embodiment, a parameter data set for the mechanical properties test of metal products is obtained through historical data. These data come from previous tests. By selecting historical data of mechanical properties tests of metal products from different batches, the average fatigue strength, average fatigue crack growth rate and average total plastic strain of all metal products are calculated to obtain a parameter data set for the mechanical properties test of metal products.

[0033] The actually obtained metal product mechanical property test data set is compared with the metal product mechanical property test reference data set to obtain the metal product mechanical property test index, and the obtained metal product mechanical property test index is compared with the metal product mechanical property test qualified threshold stored in the database. If the metal product mechanical property test index is less than or equal to the metal product mechanical property test qualified threshold stored in the database, the metal product mechanical property test index is qualified; if the metal product mechanical property test index is greater than the metal product mechanical property test qualified threshold stored in the database, the metal product mechanical property test index is unqualified. For unqualified cases, the mechanical property unqualified assessment value is further compared with the reference assessment value in the database. According to the degree of unqualified, the unqualified metal products are graded so as to take different treatment measures. Through precise grading, the source and nature of quality problems can be identified more systematically, providing specific improvement directions for quality control in the manufacturing process.

[0034] In order to obtain the qualified threshold of the mechanical property test of metal products stored in the database, a large amount of historical performance data is collected and descriptive statistical analysis is performed to determine the distribution of various mechanical performance indicators. By calculating the mean and standard deviation of these data, the qualified threshold can be set as a value within a specific confidence interval. Usually, the mean plus or minus two standard deviations is selected to ensure that the performance of the vast majority of products is covered, while eliminating abnormally low results to ensure product quality and reliability.

[0035] For the mechanical property parameter evaluation values ​​of metal products stored in the database, a certain number of historical data of mechanical property unqualified evaluation values ​​are collected, the distribution characteristics of the data are determined by applying descriptive statistical analysis, and inferential statistical techniques (such as confidence intervals and hypothesis testing) are used to determine the statistical significance threshold of the mechanical property unqualified evaluation value. This threshold can be set based on the minimum acceptable standard of the metal products under mechanical property testing.

[0036] The calculation formula for obtaining the mechanical property test index of metal products is as follows (all parameters are processed as scalar quantities and units are removed before calculation): ; In the formula, It is the qualified index of the mechanical properties test of metal products. is the fatigue strength, is the parameterized fatigue strength stored in the database, is the fatigue crack growth rate, is the fatigue crack growth rate stored in the database, T is the total plastic strain, is the parameterized total plastic strain stored in the database, is the weight factor of fatigue strength stored in the database, is the weight factor of fatigue crack growth rate stored in the database, is the weight factor for the total plastic strain stored in the database, It is the adjustment factor of the qualified index of the mechanical properties test of metal products stored in the database.

[0037] It should be noted that the above-mentioned metal product mechanical performance test index is obtained through fatigue strength, fatigue crack growth rate and total plastic strain. By combining these three parameters, the performance of metal products in mechanical applications can be comprehensively evaluated. This comprehensive consideration can better predict the behavior of metal products in actual applications and has more predictive value than a single indicator. Fatigue strength usually refers to the maximum stress that metal products can withstand under repeated stress or strain conditions without fatigue failure. Fatigue strength is obtained through fatigue tests. These tests involve placing metal products under cyclic loading conditions until the sample breaks or reaches a predetermined number of cycles. It can help engineers design structures that can withstand the expected loading cycle and select materials with suitable fatigue properties for specific applications to ensure safety. The fatigue crack growth rate describes the rate at which cracks grow under cyclic loading once cracks appear in metal products. This is measured by monitoring the growth of crack length with the number of loading cycles. This parameter is crucial to understanding the fatigue crack growth behavior of materials, especially in the crack growth stage. Through the fatigue crack growth model, the remaining life of metal products can be predicted, which is crucial for maintenance and replacement plans. Total plastic strain refers to the amount of permanent deformation accumulated by metal products during the loading process. Plastic deformation is a representation of permanent changes in the structure of metal products. Unlike elastic deformation, plastic deformation will not recover after the load is removed. Measuring total plastic strain helps to evaluate the performance of metal materials under extreme loads and the reliability of metal products in practical applications, especially under high loads or extreme environmental conditions. This formula evaluates the performance indicators of fatigue strength, fatigue crack growth rate, and total plastic strain in proportion to each of their corresponding parameter values, combined with weights and adjustment indexes, thereby providing a method to quantify and integrate the performance differences between standard tests and actual application environments for metal products. By adjusting the weight factors and exponential factors, it can be flexibly applied according to different application scenarios and performance requirements. The sensitivity of the data is adjusted using nonlinear functions to make the model more accurately reflect changes in different performance levels. The introduction of interaction terms considers the mutual influence between different test indicators, which is particularly important for understanding the performance of materials under complex stress states. The introduction of makes it possible to adjust the influence of this part on the mechanical properties test index of metal products. The interaction between fatigue strength, crack growth rate data and total plastic strain is weighted and can be set based on the past mechanical properties test index of metal products. The relationship between the mechanical properties test index of metal products in historical data and the actual mechanical properties test index of metal products is obtained. The appropriate value of .

[0038] The weight factor is obtained from a database. In a specific embodiment, a mapping set of fatigue strength, fatigue growth rate, total plastic strain and weight factor is established through the relationship between fatigue strength, fatigue growth rate, total plastic strain and qualified index of mechanical property test of metal products in historical data, and the current fatigue strength, fatigue growth rate and total plastic strain are input into the mapping set to obtain the weight factor of fatigue strength, fatigue growth rate and total plastic strain.

[0039] Specifically, the metal product environmental oxidation performance test data set includes the oxide layer thickness within a set time, the oxidation rate within a set time, and the metal product conductivity within a set time; the metal product environmental oxidation performance test data set is obtained, and the specific analysis process is: obtaining the morphology of the oxide layer of the metal product, measuring and analyzing the morphology of the oxide layer at set time intervals to obtain the oxide layer thickness within a set time, the oxidation rate within a set time, and the metal product conductivity within a set time.

[0040] In this embodiment, at the beginning of the test, an optical microscope or a scanning electron microscope is first used to observe the initial oxidation state of the surface of the metal product, and the morphological characteristics of the oxide layer are recorded. The oxide layer thickness within the set time is observed and measured multiple times at set time intervals, such as an electronic caliper or measurement software under a microscope. The difference in oxide layer thickness within the set time between two consecutive measurements is divided by the time interval to calculate the oxidation rate within the set time. For example, the thickness obtained by the second measurement is subtracted from the thickness obtained by the first measurement. The difference represents the growth of the oxide layer during this period of time. Then, this growth is divided by the time interval between the two measurements, which can be hours or days. The final quotient is the oxidation rate within the set time. The conductivity of the metal product within the set time is measured by the four-point probe method. A constant current is applied through two external probes, and the voltage difference is measured through two internal probes at the same time. The surface of the metal product is cleaned. Conduct the first conductivity test without an oxide layer and record the data as a baseline. After the metal product has been oxidized for a certain period of time, conduct another conductivity test and record the data after oxidation. Use software tools such as Excel and Origin to process and compare the conductivity data before and after oxidation, such as calculating the percentage change in conductivity and evaluating the relationship between the thickness of the oxide layer and the change in conductivity. By regularly monitoring the thickness and morphology of the oxide layer, you can accurately understand the oxidation behavior of different metal products under the same environmental conditions. By understanding the changes in oxidation rate and conductivity within a set time, metal products in electronic and electrical applications can be used to reduce the impact of oxidation.

[0041] Specifically, if the metal product environmental oxidation performance of the metal product is unqualified, the metal product environmental oxidation performance unqualified level of the metal product is determined. The specific analysis process is: the metal product environmental oxidation performance test parameter data set stored in the database is integrated and analyzed with the metal product environmental oxidation performance test data set to obtain the metal product environmental oxidation performance test index, and the metal product environmental oxidation performance test parameter data set stored in the database includes: oxide layer thickness parameter data within a set time, oxidation rate parameter data within a set time, and metal product conductivity parameter data within a set time; the metal product environmental oxidation performance test index is compared with the metal product environmental oxidation performance test qualified threshold interval stored in the database; if the metal product environmental oxidation performance test index falls within the metal product environmental oxidation performance test qualified threshold interval stored in the database, then the metal product environmental oxidation performance test index corresponds to the metal product environmental oxidation performance test index. If the metal product environmental oxidation performance of the product is qualified, the metal product environmental oxidation performance test index is recorded as the metal product environmental oxidation performance test qualified index; if the metal product environmental oxidation performance test index does not fall within the metal product environmental oxidation performance test qualified threshold range stored in the database, the metal product environmental oxidation performance test index is recorded as the metal product environmental oxidation performance unqualified assessment value; the metal product environmental oxidation performance unqualified assessment value is compared with the metal product environmental oxidation performance reference threshold stored in the database; if the metal product environmental oxidation performance unqualified assessment value is lower than or equal to the metal product environmental oxidation performance reference threshold stored in the database, the metal product mechanical property unqualified assessment value assessment level is marked as level one; if the metal product environmental oxidation performance unqualified assessment value is higher than the metal product mechanical environmental oxidation performance reference threshold stored in the database, the metal product mechanical property unqualified assessment value assessment level is marked as level two.

[0042] In this embodiment, the metal product environmental oxidation performance test parameter data set stored in the database is derived from previous tests. By selecting historical data of different batches of metal product environmental oxidation performance tests, the average value of the oxide layer thickness within the set time, the average value of the oxidation rate within the set time, and the average value of the metal product conductivity within the set time are calculated to obtain the metal product environmental oxidation performance test parameter data set. The metal product environmental oxidation performance test index is analyzed and calculated to determine its position within the qualified threshold interval stored in the database. If the metal product environmental oxidation performance test index is within the qualified threshold interval, the environmental oxidation performance of the metal product is qualified; if the metal product environmental oxidation performance test index is not within the qualified threshold interval, the environmental oxidation performance of the metal product is unqualified. For unqualified metal products, the metal product environmental oxidation performance test index is further compared with the metal product environmental oxidation performance test qualified threshold interval stored in the database to determine the severity of the unqualified metal products. The unqualified metal products are divided into level one and level two. Level one may indicate slight non-compliance, and level two indicates serious non-compliance, which can ensure that all products are within the predetermined safety threshold and reduce failures or safety accidents caused by insufficient material performance.

[0043] The method for obtaining the reference data set for the environmental oxidation performance test of metal products can be achieved through long-term experimental data accumulation. Specifically, researchers and engineers conduct performance tests on the oxide layer thickness within a set time, the oxidation rate within a set time, and the electrical conductivity of metal products within a set time on different types of metal products, and regularly record the key indicators of the oxide layer thickness within a set time, the oxidation rate within a set time, and the electrical conductivity of metal products within a set time. After repeated tests and data collection, these data are summarized and organized to form a reference data set for the environmental oxidation performance test of metal products for subsequent performance evaluation and comparative analysis.

[0044] The qualified threshold value of the environmental oxidation performance test of metal products can be obtained through statistical analysis methods. The environmental oxidation performance test data of metal products are collected from a large number of metal product samples with known excellent performance. The distribution range of the oxide layer thickness within a set time, the oxidation rate within a set time and the metal product conductivity index within a set time is determined through statistical analysis. Then, based on the statistical results, a reasonable range is determined as the qualified threshold interval. For example, the data within the range of plus or minus two standard deviations of the mean of the environmental oxidation performance test data of metal products is used as the qualified standard.

[0045] The calculation formula for obtaining the environmental oxidation performance test index of metal products is as follows (all parameters are processed as pure quantities and units are removed before calculation): ; In the formula, It is the qualified index of environmental oxidation performance test for metal products. is the oxide layer thickness within a set time, is the oxidation rate within a set time, is the conductivity of the metal product within a set time. is the weight factor of the oxide layer thickness within the set time stored in the database, is the weight factor of the oxide layer thickness within the set time stored in the database, The weight factor of the conductivity of metal products within the set time stored in the database, The oxide layer thickness parameter data within the set time stored in the database, The oxidation rate parameter data within the set time stored in the database, The conductivity parameter data of metal products within a set time stored in the database.

[0046] It should be explained that the environmental oxidation performance index of metal products is obtained through the thickness of the oxide layer within a set time, the oxidation rate within a set time and the electrical conductivity of the metal product within a set time. It aims to comprehensively evaluate the oxidation corrosion resistance of metal products under specific environmental conditions. The combination of the oxide layer thickness within a set time, the oxidation rate within a set time and the electrical conductivity of the metal product within a set time can provide a multi-angle performance measurement, thereby making the evaluation results more comprehensive and reliable. The oxide layer thickness within a set time is closely related to the oxidation rate within a set time and the environmental oxidation performance of the metal product, affecting the overall durability and stability of the metal product. The oxidation rate within a set time directly reflects the performance of the metal product in actual application, and interacts with the oxide layer thickness within a set time. When the metal product is first exposed to an oxidizing environment, the oxidation rate is usually higher because the metal surface is in direct contact with the oxidizing medium. During this period, the oxide layer forms and grows rapidly. The change in conductivity is related to the chemical changes in the oxidation process. For example, the decrease in conductivity may be due to the thickening of the oxide layer, which affects the electronic conduction path of the metal product. The thickness of the oxide layer refers to the thickness of the oxide layer formed on the metal surface within a specific time. It is an important indicator to measure the metal's ability to resist oxidation under environmental conditions, and a thicker oxide layer may indicate that the metal has been severely corroded during the oxidation process. The oxidation rate refers to the growth rate of the oxide layer on the metal surface within a specific time. It reflects the rate of oxidation reaction of the metal under specific environmental conditions, and is usually expressed as the increase in the thickness of the oxide layer per unit time. A lower oxidation rate usually indicates that the metal has better oxidation resistance. The conductivity of a metal product within a set time reflects the electrical conductivity of the metal product, which is usually related to the purity of the metal product, the alloy composition, and the presence of any possible surface or internal oxide layers. The conductivity of a metal product within a set time is an important parameter for evaluating the purity and alloy consistency of a metal product. High conductivity usually indicates that the metal product has higher purity and fewer impurities. High conductivity usually means that the metal has lower resistance and good conductivity. An S-shaped function is used. , handles changes in conductivity in a nonlinear manner, ensuring smoother scoring transitions at extremely low or high conductivity values. By integrating the oxide layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal product within a set time, the environmental durability and long-term stability of the metal product can be comprehensively evaluated. The oxide layer thickness parameter data within a set time is used to standardize the oxide layer thickness within the set time actually measured, and is used as a standard or benchmark value to compare with the oxide layer thickness within the set time actually measured. The oxidation rate parameter data within a set time is used as a standard or benchmark value of the oxidation rate within a set time for comparison, so that the oxidation rates of different metal products within a set time under the same or different environmental conditions can be compared. The conductivity parameter data of the metal product is used as a standard or benchmark value of the conductivity for comparison, so that the performance differences of different metals in terms of conductivity can be compared. Through the introduction of the parameter data, the formula provides an objective evaluation method, which can accurately quantify the environmental oxidation performance of metal products. The application of the weight factor makes the formula very adaptable, and the weight factor can be adjusted according to different application scenarios and environmental conditions to meet specific performance evaluation requirements. This evaluation method can help predict the performance of metal products in actual environments, provide a scientific basis for the selection and design of metal products, reduce maintenance costs and extend service life.

[0047] The weight factor is obtained from a database. In a specific embodiment, a mapping set of the oxide layer thickness within a set time, the oxidation rate within a set time, the conductivity of the metal product within a set time and the qualified index of the environmental oxidation performance test of the metal product is established through the relationship between the oxide layer thickness within a set time, the oxidation rate within a set time, the conductivity of the metal product within a set time and the weight factor, and the current oxide layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal product within a set time are input into the mapping set to obtain the weight factor of the oxide layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal product within a set time.

[0048] It should be noted that the larger the evaluation value of the qualified index of the environmental oxidation performance test of metal products is, the better the environmental oxidation functionality of the metal products detected by the detection system is. As the thickness of the oxide layer increases within the set time, the influence of the oxide layer thickness within the set time on the qualified index evaluation value of the environmental oxidation performance test of metal products gradually increases. The weight factor of the oxide layer thickness within the set time is 0.4 and remains unchanged, the oxidation rate within the set time is 5 and remains unchanged, the weight factor of the oxidation rate within the set time is 0.3 and remains unchanged, the conductivity of the metal product within the set time is 0.02 and remains unchanged, the weight factor of the conductivity of the metal product within the set time is 0.3 and remains unchanged, the parameter data of the oxide layer thickness within the set time is 5 and remains unchanged, the parameter data of the oxidation rate within the set time is 5 and remains unchanged, the parameter data of the conductivity of the metal product within the set time is 0.02 and remains unchanged. The example values ​​of the average immersion corrosion depth are as follows: Table 1: Example of oxide layer thickness within a set time in the evaluation value of the qualified index of the environmental oxidation performance test of metal products

[0049] Specifically, the metal product anti-corrosion coating performance test data set includes coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance; the metal product anti-corrosion coating performance test data set, the specific analysis process is: applying tensile test and scratch test to the metal product anti-corrosion coating, analyzing the degree of detachment of the anti-corrosion coating to obtain coating adhesion data; evaluating the coating anti-penetration performance by measuring the amount of water vapor passing through the anti-corrosion coating within a specified time; obtaining the coating chemical corrosion resistance by analyzing the corrosiveness of the anti-corrosion coating in acid, alkali and salt solutions; the metal product anti-corrosion coating performance of the metal product is determined to be unqualified. The specific analysis process of the unqualified level of metal product anti-corrosion coating performance of metal products is as follows: the metal product anti-corrosion coating performance test parameter data set stored in the database is integrated and analyzed with the metal product anti-corrosion coating performance test data set to obtain the metal product anti-corrosion coating performance test index, wherein the metal product anti-corrosion coating performance test parameter data stored in the database includes coating adhesion parameter data, coating anti-penetration performance parameter data and coating chemical corrosion resistance parameter data; the metal product anti-corrosion coating performance test index is compared with the metal product anti-corrosion coating performance test qualified threshold value stored in the database; if the metal product anti-corrosion coating performance test index is less than or equal to the metal product anti-corrosion coating performance test qualified threshold value stored in the database, then the metal product anti-corrosion coating performance of the metal product corresponding to the metal product anti-corrosion coating performance test index is qualified, and the metal product anti-corrosion coating performance test index is recorded as the metal product anti-corrosion coating performance test qualified index; if the metal product anti-corrosion coating performance test index is greater than the metal product anti-corrosion coating performance test qualified threshold value stored in the database, then the metal product anti-corrosion coating performance of the metal product corresponding to the metal product anti-corrosion coating performance test index is unqualified, and the metal product anti-corrosion coating performance test The index is recorded as the unqualified performance assessment value of the anti-corrosion coating of metal products; the unqualified performance assessment value of the anti-corrosion coating of metal products is compared with the performance parameter threshold of the anti-corrosion coating of metal products stored in the database; if the unqualified performance assessment value of the anti-corrosion coating of metal products is lower than or equal to the performance parameter threshold of the anti-corrosion coating of metal products stored in the database, the assessment level of the unqualified performance assessment value of the anti-corrosion coating of metal products is marked as level one; if the unqualified performance assessment value of the anti-corrosion coating of metal products is higher than the performance parameter threshold of the anti-corrosion coating of metal products stored in the database, the assessment level of the unqualified mechanical performance assessment value of the metal product is marked as level two.

[0050] In this embodiment, the coating adhesion is tested by using a tensile testing device to stick a special tensile testing pad on the surface of the anti-corrosion coating of the metal product. After the metal product is fixed, a vertical tensile force is applied at a constant speed until the coating is peeled off from the metal surface. The maximum tensile force value is the coating adhesion. A scratch tester is used to apply constant pressure on the coating surface, and cross scratches are made with a sharp tool. A magnifying device is used to observe the peeling and falling off of the coating at the scratches. The coating adhesion is evaluated based on the area and degree of peeling of the coating at the scratches. The coating adhesion test helps to evaluate the durability and reliability of the anti-corrosion coating in actual use, and ensures that it will not easily peel off under mechanical stress. The anti-penetration performance of the coating is evaluated by applying a constant water vapor pressure to one side of the metal product coated with the anti-corrosion coating and keeping the other side dry. The amount of water vapor passing through the coating is measured at specific time intervals, and the metal product is weighed at regular intervals in a constant humidity environment. The weight change in each time interval is calculated and divided by the time interval to obtain the water vapor permeation per unit time. The water vapor permeation performance test can evaluate the protective ability of the coating in a humid environment and help predict its durability in practical applications. The coating chemical corrosion resistance test exposes the metal product coated with the anti-corrosion coating to different chemical solutions such as acid, alkali, and salt solutions, controls the temperature and immersion time of the test environment, and uses a microscope or other detection equipment to observe changes in the coating surface, such as blistering, cracking, peeling, etc. The degree of corrosion of the coating by different chemical solutions is compared to evaluate the chemical corrosion resistance of the coating. The chemical corrosion test can help determine the protective effect of the coating in various harsh environments and ensure its reliability and durability in special applications such as chemical and marine.

[0051] The metal product anti-corrosion coating performance test parameter data set stored in the database comes from previous tests. By selecting historical data of metal product anti-corrosion coating performance tests of different batches, calculating the average adhesion value of all coatings, the average anti-penetration performance value of the coating and the average chemical corrosion resistance value of the coating, the metal product anti-corrosion coating performance test parameter data set is obtained. The actual measured metal product anti-corrosion coating performance test data set is fused and analyzed with the metal product anti-corrosion coating performance test parameter data set stored in the database. By integrating the current test data with the historical standard data, using data processing steps such as data standardization, statistical analysis and pattern recognition, and using data analysis software such as MATLAB and Python, data fusion and calculation are performed to obtain the metal product anti-corrosion coating performance test index. The metal product anti-corrosion coating performance test index obtained by the fusion analysis is compared with the metal product anti-corrosion coating performance test qualified threshold stored in the database to determine whether the metal product anti-corrosion coating performance test is qualified. The metal product anti-corrosion coating performance unqualified assessment value is compared with the metal product anti-corrosion coating performance parameter threshold stored in the database to determine the severity of the unqualified performance. The unqualified metal products are divided into level one and level two. Level one may indicate slight non-conformity, and level two indicates serious non-conformity. Through the fusion analysis method, multiple performance indicators can be comprehensively considered to provide a comprehensive anti-corrosion coating performance evaluation. By setting different levels, the evaluation of unqualified products can be refined to help identify the severity of the problem, guide the optimization of anti-corrosion coating materials and processes, and improve product quality and service life.

[0052] The qualified threshold of the performance test of anti-corrosion coating for metal products can be obtained by statistical analysis method: by conducting statistical analysis on a large amount of historical test data, the mean value and standard deviation of each performance indicator are determined, and then a reasonable confidence interval (such as 95% confidence interval) is set as the qualified threshold range.

[0053] The performance parameter thresholds of anti-corrosion coatings for metal products stored in the database can be obtained through a large number of laboratory tests, measuring and recording the anti-corrosion coating performance data such as coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance, and applying statistical analysis methods to determine the range and distribution of performance parameters, thereby setting the parameter thresholds.

[0054] The calculation formula for obtaining the performance test index of metal product anti-corrosion coating is as follows (all parameters are processed as scalar quantities and units are removed before calculation): ; In the formula, It is the qualified index of the performance test of metal product anti-corrosion coating. is the coating adhesion difference, is the difference in the anti-penetration performance of the coating, The difference in chemical corrosion resistance of the coating. is the weight factor of coating adhesion, is the weight factor of the coating’s anti-penetration performance, is the weighting factor of the coating’s chemical corrosion resistance, The coating adhesion parameter data stored in the database, The coating anti-penetration performance parameter data stored in the database, The chemical corrosion resistance parameter data of the coating stored in the database.

[0055] It should be explained that the metal product anti-corrosion coating performance test index is obtained through coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance. It can more comprehensively evaluate and quantify the overall performance of the anti-corrosion coating to ensure that the anti-corrosion coating meets the performance standards in all important aspects. Strong coating adhesion helps to maintain the integrity of the coating, thereby more effectively blocking the intrusion of moisture and corrosive chemicals. Coating adhesion refers to the adhesion strength between the coating and the metal product. High adhesion means that the coating can be tightly combined with the metal product and is not easy to peel off. The coating with high adhesion can protect the substrate for a longer time and avoid exposing the substrate to a corrosive environment due to coating shedding. Logarithmic processing , used for coating adhesion, this treatment can reduce the impact of high values, so that the increase of indicators will not have too much impact on the overall evaluation, maintaining the balance of the evaluation. The coating anti-penetration performance describes the ability of the coating to block the penetration of water, oxygen and other harmful substances. Effective anti-penetration performance can prevent these substances from reaching the surface of metal products, thereby protecting metal products from corrosion and improving the corrosion resistance of metal products, especially in humid or salt spray environments. Square root treatment , used for coating penetration resistance, this treatment helps reduce the sensitivity of larger values, so that the incremental performance produces a decreasing marginal effect in the high performance range. The chemical corrosion resistance of the coating measures the ability of the anti-corrosion coating to resist the erosion of various chemicals (such as acids, alkalis, salts, etc.). This is a key indicator for evaluating the protective effect of the anti-corrosion coating in a chemical environment, enabling metal products to be used in environments with more harsh chemical properties, such as chemical plants or marine environments, protecting the surface of metal products from chemical attack and ensuring the reliability of metal products. The chemical corrosion resistance of the coating directly affects the overall evaluation in a linear manner, because the chemical corrosion resistance is usually directly related to the chemical stability of the anti-corrosion coating, and no nonlinear conversion is required. By introducing parameter data, the gap between the performance of the anti-corrosion coating of metal products and the expected standard can be more accurately evaluated, and specific performance deficiencies can be identified, which helps to improve the performance of the anti-corrosion coating in a targeted manner. , , , corresponding to the importance of coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance respectively. The size of the weight factor reflects the relative importance of each performance indicator in a specific application.

[0056] The weight factor is obtained from the database. In a specific embodiment, a mapping set of coating adhesion, coating anti-penetration performance, coating chemical corrosion resistance and weight factors is established through the relationship between coating adhesion, coating anti-penetration performance, coating chemical corrosion resistance and metal product anti-corrosion coating performance test qualification index in historical data, and the current coating adhesion, coating anti-penetration performance, coating chemical corrosion resistance are input into the mapping set to obtain the weight factors of coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance.

[0057] like Figure 2 As shown, it is an image of the change of the qualified index evaluation value of the performance test of the anti-corrosion coating of metal products with the coating adhesion difference, wherein the x-axis represents the coating adhesion difference, and the y-axis represents the qualified index evaluation value of the performance test of the anti-corrosion coating of metal products, which can help to intuitively understand how the coating adhesion difference affects the qualified index evaluation value of the performance test of the anti-corrosion coating of metal products. The larger the coating adhesion difference, the larger the qualified index evaluation value of the performance test of the anti-corrosion coating of metal products, indicating that the functionality of the anti-corrosion coating of metal products detected by the detection system is better. As the coating adhesion difference increases, the influence of the coating adhesion difference on the qualified index evaluation value of the performance test of the anti-corrosion coating of metal products gradually weakens. The weight factor of the coating adhesion is 0.4 and remains unchanged, the coating anti-penetration performance is 50 and remains unchanged, the weight factor of the coating anti-penetration performance is 0.3 and remains unchanged, the coating chemical corrosion resistance is 80 and remains unchanged, the weight factor of the coating chemical corrosion resistance is 0.3 and remains unchanged, the coating adhesion parameter data is 30 and remains unchanged, the coating anti-penetration performance parameter data is 40 and remains unchanged, the coating chemical corrosion resistance parameter data is 70 and remains unchanged, and the example values ​​of the coating adhesion difference are as follows: Table 2: Example of coating adhesion difference in metal product anti-corrosion coating performance test pass index evaluation value

[0058] Specifically, the metal product anti-corrosion coating performance test parameter data set stored in the database is fused and analyzed with the metal product anti-corrosion coating performance test data set to obtain the metal product anti-corrosion coating performance test index. The specific analysis process is: the coating adhesion is subtracted from the parameter coating adhesion stored in the database to obtain the coating adhesion difference; the coating anti-permeability performance is subtracted from the parameter coating anti-permeability performance stored in the database to obtain the coating anti-permeability performance difference; the coating chemical corrosion resistance is subtracted from the parameter coating chemical corrosion resistance stored in the database to obtain the coating chemical corrosion resistance difference; the coating adhesion difference, coating anti-permeability performance difference and coating chemical corrosion resistance difference are processed to obtain the metal product anti-corrosion coating performance test index.

[0059] In this implementation scheme, the coating adhesion difference, coating anti-penetration performance difference and coating chemical corrosion resistance difference are comprehensively processed, and weighted average or other appropriate methods can be used to obtain the metal product anti-corrosion coating performance test index. By integrating and analyzing the data of coating adhesion, anti-penetration performance and chemical corrosion resistance, the performance of the anti-corrosion coating under different environments and application conditions can be comprehensively evaluated. Considering the performance of the anti-corrosion coating in different aspects, such as mechanical properties, chemical stability and long-term durability, it is helpful for manufacturers to understand the comprehensive performance characteristics of the anti-corrosion coating. Based on the comparison and analysis of the set parameter data, it is possible to objectively determine whether the coating performance meets the expected technical standards or application requirements, thereby ensuring the consistency and quality stability of the anti-corrosion coating production process and avoiding product degradation or failure due to quality problems of the anti-corrosion coating.

[0060] See also Figure 3, a device for analyzing anti-rust performance test data of metal products, comprising a metal product mechanical property test module, a metal product environmental oxidation performance test module, a metal product anti-corrosion coating performance test module and a qualified grade classification module, wherein: the metal product mechanical property test module is used to obtain a metal product mechanical property test data set, and analyze the metal product mechanical property test data set to determine whether the metal product mechanical property of the metal product is qualified; if the metal product mechanical property of the metal product is qualified, the metal product is marked as having qualified metal product mechanical property; if the metal product mechanical property of the metal product is unqualified, the metal product mechanical property unqualified grade of the metal product is determined; the metal product environmental oxidation performance test module is used to obtain a metal product environmental oxidation performance test data set of metal products marked as having qualified metal product mechanical property, and analyze the metal product environmental oxidation performance test data set to determine whether the metal product environmental oxidation performance of the metal product is qualified. Whether the metal product's environmental oxidation performance is qualified, if the metal product's environmental oxidation performance is qualified, the metal product is marked as qualified metal product environmental oxidation performance, if the metal product's environmental oxidation performance is unqualified, the metal product's unqualified metal product environmental oxidation performance level is determined; the metal product anti-corrosion coating performance testing module is used to obtain the metal product anti-corrosion coating performance test data set of the metal product marked as qualified metal product environmental oxidation performance, and analyze the metal product anti-corrosion coating performance test data set to determine whether the metal product's anti-corrosion coating performance is qualified, if the metal product's anti-corrosion coating performance is qualified, the metal product is marked as qualified metal product anti-corrosion coating performance, if the metal product's anti-corrosion coating performance is unqualified, the metal product's unqualified metal product anti-corrosion coating performance level is determined; the qualified level classification module is used to obtain the anti-rust performance level of the metal product marked as qualified metal product anti-corrosion coating performance.

[0061] In summary, this application has at least the following effects: By conducting mechanical property tests, environmental oxidation property tests, and anti-corrosion coating property tests on metal products, this comprehensive evaluation method can provide a more comprehensive understanding of the performance of metal products in actual applications. The mechanical properties and anti-corrosion coating properties of metal products are relatively more stable, making the self-corrosion potential less susceptible to environmental changes, such as temperature, humidity, and solution composition. By evaluating the performance under different environmental conditions, it is possible to select metal products suitable for specific application environments, and solve the problem that the self-corrosion potential is affected by multiple factors. For example, under different environmental conditions, its self-corrosion potential may vary significantly. This change may cause the self-corrosion potential of the same metal product in different environments to be different, thereby affecting the accuracy of material selection and anti-corrosion measures.

[0062] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0063] The present invention is described with reference to flowcharts and / or block diagrams of systems, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0064] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0065] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0066] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for analyzing the anti-rust performance test data of metal products. It is characterized in that The following steps are involved: Acquire a metal product mechanical property test data set, analyze the metal product mechanical property test data set, determine whether the metal product mechanical property of the metal product is qualified, if the metal product mechanical property of the metal product is qualified, mark the metal product as having qualified metal product mechanical property, if the metal product mechanical property of the metal product is unqualified, determine the metal product mechanical property unqualified level of the metal product; Obtaining a metal product environmental oxidation performance test data set of a metal product that is marked as having qualified mechanical properties of a metal product, and analyzing the metal product environmental oxidation performance test data set to determine whether the metal product environmental oxidation performance of the metal product is qualified, if the metal product environmental oxidation performance of the metal product is qualified, marking the metal product as having qualified environmental oxidation performance of the metal product, and if the metal product environmental oxidation performance of the metal product is unqualified, determining the metal product environmental oxidation performance unqualified level of the metal product; Obtaining a metal product anti-corrosion coating performance test data set of metal products marked as qualified metal product environmental oxidation performance, and analyzing the metal product anti-corrosion coating performance test data set to determine whether the metal product anti-corrosion coating performance of the metal product is qualified, if the metal product anti-corrosion coating performance of the metal product is qualified, marking the metal product as qualified metal product anti-corrosion coating performance, if the metal product anti-corrosion coating performance of the metal product is unqualified, determining the metal product anti-corrosion coating performance unqualified level of the metal product; Obtain the anti-rust performance grade of metal products that are marked as having qualified anti-corrosion coating performance.

2. The method for testing the anti-rust performance of a metal product according to claim 1, Features: The specific analysis process of obtaining the anti-rust performance level of the metal product recorded as having qualified anti-corrosion coating performance of the metal product is as follows: Obtain the qualified index of metal product mechanical performance test, metal product environmental oxidation performance test and metal product anti-corrosion coating performance test; Comprehensively process the qualified index of the metal product mechanical property test, the qualified index of the metal product environmental oxidation performance test and the qualified index of the metal product anti-corrosion coating performance test to obtain the comprehensive index of the metal product anti-rust performance; The comprehensive anti-rust performance index of the metal product is compared with the corrosion level corresponding to the comprehensive anti-rust performance index of each metal product stored in the database to obtain the anti-rust level corresponding to the comprehensive anti-rust performance index of the metal product.

3. The method for analyzing the anti-rust performance test data of a metal product according to claim 2, Features: The formula for the comprehensive index of the metal product anti-rust performance is: ； In the formula, It is the comprehensive index of anti-rust performance of metal products. It is the qualified index of the mechanical properties test of metal products. It is the qualified index of environmental oxidation performance test for metal products. It is the qualified index of the performance test of metal product anti-corrosion coating. It is the weight factor of the qualified index of the mechanical properties test of metal products stored in the database. It is the weight factor of the qualified index of the environmental oxidation performance test of metal products stored in the database. It is the weight factor of the metal product anti-corrosion coating performance test qualification index stored in the database. It is the proportional factor of the qualified index of the environmental oxidation performance test of metal products stored in the database.

4. The method for analyzing rust resistance test data of a metal product according to claim 3, Features: The metal product mechanical property test data set includes fatigue strength, fatigue crack growth rate and total plastic strain; The specific analysis process of obtaining the metal product mechanical property test data set is as follows: Continuously apply cyclic stress to metal products until fatigue cracks occur in the metal products, and analyze the maximum stress that the metal products can withstand under the number of cycles to obtain fatigue strength; The fatigue cracks occurring in metal products are monitored by crack monitoring equipment to obtain the fatigue crack growth rate; The peak strain and residual strain in each cycle are calculated by difference to obtain the plastic strain, and the total plastic strain is obtained by accumulating the plastic strain calculated in all cycles.

5. The method for analyzing the anti-rust performance test data of a metal product according to claim 4, Features: If the mechanical properties of the metal product are unqualified, the unqualified level of the mechanical properties of the metal product is determined. The specific analysis process is: The metal product mechanical property test parameter data set stored in the database is integrated and analyzed with the metal product mechanical property test data set to obtain the metal product mechanical property test index, wherein the metal product mechanical property test parameter data set stored in the database includes: fatigue strength parameter data, fatigue crack growth rate parameter data and total plastic strain parameter data; Compare the metal product mechanical property test index with the metal product mechanical property test pass threshold stored in the database; If the metal product mechanical property test index is less than or equal to the metal product mechanical property test qualified threshold value stored in the database, the metal product mechanical property of the metal product corresponding to the metal product mechanical property test index is qualified, and the metal product mechanical property test index is recorded as the metal product mechanical property test qualified index; If the metal product mechanical property test index is greater than the metal product mechanical property test qualified threshold stored in the database, the metal product mechanical property of the metal product corresponding to the metal product mechanical property test index is unqualified, and the metal product mechanical property test index is recorded as the metal product mechanical property unqualified assessment value; Compare the unqualified evaluation value of the mechanical properties of the metal product with the parameterized evaluation value of the mechanical properties of the metal product stored in the database; If the unqualified evaluation value of the mechanical properties of the metal product is lower than or equal to the reference evaluation value of the mechanical properties of the metal product stored in the database, the evaluation level of the unqualified evaluation value of the mechanical properties of the metal product is marked as level one; If the unqualified assessment value of the mechanical properties of a metal product is higher than the reference assessment value of the mechanical properties of the metal product stored in the database, the assessment level of the unqualified assessment value of the mechanical properties of the metal product is marked as level two.

6. The method for analyzing rust resistance test data of a metal product according to claim 3, Features: The metal product environmental oxidation performance test data set includes the oxide layer thickness within a set time, the oxidation rate within a set time, and the metal product conductivity within a set time; Obtain the metal product environmental oxidation performance test data set. The specific analysis process is as follows: The morphology of the oxide layer of the metal product is obtained, and the morphology of the oxide layer is measured and analyzed at set time intervals to obtain the oxide layer thickness within the set time, the oxidation rate within the set time, and the conductivity of the metal product within the set time.

7. The method for analyzing the anti-rust performance test data of a metal product according to claim 6, Features: If the metal product environmental oxidation performance of the metal product is unqualified, the metal product environmental oxidation performance unqualified level of the metal product is determined, and the specific analysis process is: The metal product environmental oxidation performance test parameter data set stored in the database is integrated and analyzed with the metal product environmental oxidation performance test data set to obtain the metal product environmental oxidation performance test index, wherein the metal product environmental oxidation performance test parameter data set stored in the database includes: oxide layer thickness parameter data within a set time, oxidation rate parameter data within a set time, and metal product conductivity parameter data within a set time; Compare the metal product environmental oxidation performance test index with the metal product environmental oxidation performance test qualified threshold range stored in the database; If the metal product environmental oxidation performance test index falls within the metal product environmental oxidation performance test qualified threshold range stored in the database, the metal product environmental oxidation performance of the metal product corresponding to the metal product environmental oxidation performance test index is qualified, and the metal product environmental oxidation performance test index is recorded as the metal product environmental oxidation performance test qualified index; If the metal product environmental oxidation performance test index does not fall within the metal product environmental oxidation performance test qualified threshold range stored in the database, the metal product environmental oxidation performance test index is recorded as the metal product environmental oxidation performance unqualified assessment value; Compare the unqualified evaluation value of the environmental oxidation performance of metal products with the reference threshold of the environmental oxidation performance of metal products stored in the database; If the environmental oxidation performance unqualified assessment value of the metal product is lower than or equal to the environmental oxidation performance parameter threshold of the metal product stored in the database, the assessment level of the unqualified mechanical performance assessment value of the metal product is marked as level one; If the unqualified assessment value of the environmental oxidation performance of a metal product is higher than the reference threshold of the environmental oxidation performance of the metal product stored in the database, the assessment level of the unqualified assessment value of the mechanical properties of the metal product will be marked as level two.

8. The method for analyzing rust resistance test data of a metal product according to claim 3, Features: The metal product anti-corrosion coating performance test data set includes coating adhesion, coating anti-penetration performance and coating chemical corrosion resistance; The specific analysis process of the metal product anti-corrosion coating performance test data set is as follows: Apply tensile test and scratch test to the anti-corrosion coating of metal products, analyze the degree of shedding of the anti-corrosion coating to obtain the coating adhesion data; The anti-permeability performance of the coating is evaluated by measuring the amount of water vapor that passes through the anti-corrosion coating within a specified time; The chemical corrosion resistance of the coating is obtained by analyzing the corrosion of the anti-corrosion coating in acid, alkali and salt solutions; If the performance of the metal product anti-corrosion coating of the metal product is unqualified, the unqualified performance grade of the metal product anti-corrosion coating of the metal product is determined. The specific analysis process is as follows: The metal product anti-corrosion coating performance test parameter data set stored in the database is integrated and analyzed with the metal product anti-corrosion coating performance test data set to obtain the metal product anti-corrosion coating performance test index, wherein the metal product anti-corrosion coating performance test parameter data set stored in the database includes coating adhesion parameter data, coating anti-penetration performance parameter data and coating chemical corrosion resistance parameter data; Compare the metal product anti-corrosion coating performance test index with the metal product anti-corrosion coating performance test pass threshold stored in the database; If the metal product anti-corrosion coating performance test index is less than or equal to the metal product anti-corrosion coating performance test qualified threshold stored in the database, then the metal product anti-corrosion coating performance of the metal product corresponding to the metal product anti-corrosion coating performance test index is qualified, and the metal product anti-corrosion coating performance test index is recorded as the metal product anti-corrosion coating performance test qualified index; If the metal product anti-corrosion coating performance test index is greater than the metal product anti-corrosion coating performance test qualified threshold stored in the database, the metal product anti-corrosion coating performance of the metal product corresponding to the metal product anti-corrosion coating performance test index is unqualified, and the metal product anti-corrosion coating performance test index is recorded as the metal product anti-corrosion coating performance unqualified assessment value; Compare the unqualified evaluation value of the metal product anti-corrosion coating performance with the metal product anti-corrosion coating performance parameter threshold stored in the database; If the unqualified evaluation value of the metal product anti-corrosion coating performance is lower than or equal to the metal product anti-corrosion coating performance parameter threshold stored in the database, the evaluation level of the unqualified evaluation value of the metal product anti-corrosion coating performance is marked as level one; If the unqualified performance assessment value of the metal product anti-corrosion coating is higher than the metal product anti-corrosion coating performance parameter threshold stored in the database, the assessment level of the unqualified performance assessment value of the metal product mechanical properties is marked as level two.

9. The method for analyzing anti-rust performance test data of a metal product according to claim 8, Features: The metal product anti-corrosion coating performance test parameter data set stored in the database is integrated and analyzed with the metal product anti-corrosion coating performance test data set to obtain the metal product anti-corrosion coating performance test index. The specific analysis process is as follows: The coating adhesion is calculated differentially from the reference coating adhesion stored in the database to obtain the coating adhesion difference; Calculate the difference between the anti-penetration performance of the coating and the anti-penetration performance of the reference coating stored in the database to obtain the difference in the anti-penetration performance of the coating; The difference between the chemical corrosion resistance of the coating and the chemical corrosion resistance of the reference coating stored in the database is calculated to obtain the difference in chemical corrosion resistance of the coating; The coating adhesion difference, coating anti-penetration performance difference and coating chemical corrosion resistance difference are processed to obtain the metal product anti-corrosion coating performance test index.

10. A device for analyzing data of a metal product's anti-rust performance test, used in a method for analyzing data of a metal product's anti-rust performance test according to any one of claims 1 to 9, It is characterized in that include: Metal product mechanical properties test module, metal product environmental oxidation performance test module, metal product anti-corrosion coating performance test module and qualified grade classification module, including: The metal product mechanical property test module is used to obtain a metal product mechanical property test data set, and analyze the metal product mechanical property test data set to determine whether the metal product mechanical property of the metal product is qualified. If the metal product mechanical property of the metal product is qualified, the metal product is marked as having qualified metal product mechanical property. If the metal product mechanical property of the metal product is unqualified, the metal product mechanical property unqualified level is determined. The metal product environmental oxidation performance test module is used to obtain a metal product environmental oxidation performance test data set of metal products that are marked as having qualified mechanical properties of metal products, and analyze the metal product environmental oxidation performance test data set to determine whether the metal product environmental oxidation performance of the metal product is qualified. If the metal product environmental oxidation performance of the metal product is qualified, the metal product is marked as having qualified environmental oxidation performance of the metal product; if the metal product environmental oxidation performance of the metal product is unqualified, the metal product environmental oxidation performance unqualified level of the metal product is determined; The metal product anti-corrosion coating performance test module is used to obtain a metal product anti-corrosion coating performance test data set of metal products that are marked as having qualified environmental oxidation performance of metal products, and analyze the metal product anti-corrosion coating performance test data set to determine whether the metal product anti-corrosion coating performance of the metal product is qualified. If the metal product anti-corrosion coating performance of the metal product is qualified, the metal product is marked as having qualified metal product anti-corrosion coating performance; if the metal product anti-corrosion coating performance of the metal product is unqualified, the unqualified metal product anti-corrosion coating performance grade of the metal product is determined; The qualified grade classification module is used to obtain the anti-rust performance grade of metal products that are recorded as having qualified performance of the anti-corrosion coating of the metal products.

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