Data analysis method and device for anti-rust performance test of metal products

Abstract

The present invention discloses a method and device for analyzing data on the anti-rust performance of metal products, which relates to the technical field of metal product production. The method for analyzing data on the anti-rust performance of metal products includes obtaining a mechanical property test data set of metal products and analyzing the mechanical property test data set of metal products to determine whether the mechanical properties of the metal products are qualified. If the mechanical properties of the metal products are qualified, the metal products are marked as having qualified mechanical properties. If the mechanical properties of the metal products are unqualified, the unqualified grade of the mechanical properties of the metal products is determined. It achieves the advantages that by conducting mechanical property tests, environmental oxidation property tests, and anti-corrosion coating property tests on metal products, this comprehensive evaluation method can more comprehensively understand the performance of metal products in actual applications, evaluate their performance under different environmental conditions, and select metal products suitable for specific application environments.

Description

Technical Field

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

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

[0003] For example, the patent with the publication number CN113158477B discloses a method for simulating and analyzing the coupled corrosion of multi-metals, which can effectively solve the problem of corrosion matching design of multi-metal materials during the equipment design process, identify the corrosion hot spots, and take targeted measures. It is particularly suitable for the repetitive corrosion matching design work with small modifications to multi-metal assemblies, solves design problems before manufacturing prototypes, and accelerates the development process of corrosion-resistant designs.

[0004] Currently, the self-corrosion potential is used to sort various metal materials. However, the self-corrosion potential is affected by various factors. For example, in different environmental conditions, its self-corrosion potential may have significant differences. Such changes 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] Aiming at the deficiencies of the prior art, the present invention provides a method and device for analyzing data on the anti-rust performance of metal products, which solves the problem that the self-corrosion potential is affected by various factors. For example, in different environmental conditions, its self-corrosion potential may have significant differences. Such changes 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.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A method for analyzing the anti-rust performance data of metal products, comprising the following steps: Obtain the mechanical property test data set of the metal product, and analyze the mechanical property test data set of the metal product to determine whether the mechanical properties of the metal product are qualified. If the mechanical properties of the metal product are qualified, mark the metal product as qualified in mechanical properties. If the mechanical properties of the metal product are unqualified, determine the unqualified grade of the mechanical properties of the metal product; Obtain the environmental oxidation property test data set of the metal product marked as qualified in mechanical properties, and analyze the environmental oxidation property test data set of the metal product to determine whether the environmental oxidation properties of the metal product are qualified. If the environmental oxidation properties of the metal product are qualified, mark the metal product as qualified in environmental oxidation properties. If the environmental oxidation properties of the metal product are unqualified, determine the unqualified grade of the environmental oxidation properties of the metal product; Obtain the anti-corrosion coating property test data set of the metal product marked as qualified in environmental oxidation properties, and analyze the anti-corrosion coating property test data set of the metal product to determine whether the anti-corrosion coating properties of the metal product are qualified. If the anti-corrosion coating properties of the metal product are qualified, mark the metal product as qualified in anti-corrosion coating properties. If the anti-corrosion coating properties of the metal product are unqualified, determine the unqualified grade of the anti-corrosion coating properties of the metal product; Obtain the anti-rust performance grade of the metal product marked as qualified in anti-corrosion coating properties.

[0007] Further, the specific analysis process for obtaining the anti-rust performance grade of the metal product marked as qualified in anti-corrosion coating properties is as follows: Obtain the qualified index of the mechanical property test of the metal product, the qualified index of the environmental oxidation property test of the metal product, and the qualified index of the anti-corrosion coating property test of the metal product; Perform comprehensive processing on the qualified index of the mechanical property test of the metal product, the qualified index of the environmental oxidation property test of the metal product, and the qualified index of the anti-corrosion coating property test of the metal product to obtain the comprehensive anti-rust performance index of the metal product; Compare the comprehensive anti-rust performance index of the metal product with the corrosion grades corresponding to the comprehensive anti-rust performance indexes of each metal product stored in the database to obtain the anti-rust grade corresponding to the comprehensive anti-rust performance index of the metal product.

[0008] Further, the formula for the comprehensive anti-rust performance index of the metal product is:

[0009] ;

[0010] In the formula, is the comprehensive anti-rust performance index of the metal product, is the qualified index of the mechanical property test of the metal product, is the qualified index for the environmental oxidation performance test of metal products, is the qualified index for the anti-corrosion coating performance test of metal products, is the weight factor of the qualified index for the mechanical property test of metal products stored in the database, is the weight factor of the qualified index for the environmental oxidation performance test of metal products stored in the database, is the weight factor of the qualified index for the anti-corrosion coating performance test of metal products stored in the database, is the scale factor of the qualified index for the environmental oxidation performance test of metal products stored in the database.

[0011] Furthermore, the mechanical property test data set of the metal products includes fatigue strength, fatigue crack growth rate, and total plastic strain; the specific analysis process for obtaining the mechanical property test data set of the metal products is as follows: continuously apply cyclic stress to the metal products until fatigue cracks occur in the metal products, analyze the maximum stress that the metal products can withstand under the number of cycles to obtain the fatigue strength; monitor the fatigue cracks occurring in the metal products through a crack monitoring device to obtain the fatigue crack growth rate; calculate the difference between the peak strain and the residual strain in each cycle respectively to obtain the plastic strain, and accumulate the plastic strains calculated in all cycles to obtain the total plastic strain.

[0012] Further, if the mechanical properties of the metal product are unqualified, determine the unqualified grade of the mechanical properties of the metal product. The specific analysis process is as follows: fuse and analyze the metal product mechanical property test parameter dataset stored in the database with the metal product mechanical property test dataset to obtain the metal product mechanical property test index. The metal product mechanical property test parameter dataset 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 qualified threshold of the metal product mechanical property test stored in the database; if the metal product mechanical property test index is less than or equal to the qualified threshold of the metal product mechanical property test stored in the database, the mechanical properties of the metal product corresponding to the metal product mechanical property test index are 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 qualified threshold of the metal product mechanical property test stored in the database, the mechanical properties of the metal product corresponding to the metal product mechanical property test index are unqualified, and the metal product mechanical property test index is recorded as the metal product mechanical property unqualified evaluation value; compare the metal product mechanical property unqualified evaluation value with the metal product mechanical property parameter evaluation value stored in the database; if the metal product mechanical property unqualified evaluation value is lower than or equal to the metal product mechanical property parameter evaluation value stored in the database, the evaluation grade of the metal product mechanical property unqualified evaluation value is marked as grade one; if the metal product mechanical property unqualified evaluation value is higher than the metal product mechanical property parameter evaluation value stored in the database, the evaluation grade of the metal product mechanical property unqualified evaluation value is marked as grade two.

[0013] Further, the metal product environmental oxidation property test dataset includes the oxidation 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; the process of obtaining the metal product environmental oxidation property test dataset is as follows: obtain the morphology of the metal product oxidation layer, and measure and analyze the morphology of the oxidation layer at set time intervals to obtain the oxidation 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.

[0014] Further, if the environmental oxidation performance of the metal product is unqualified, the unqualified grade of the environmental oxidation performance of the metal product is determined. The specific analysis process is as follows: The environmental oxidation performance test parameter dataset stored in the database is fused and analyzed with the environmental oxidation performance test dataset of the metal product to obtain the environmental oxidation performance test index of the metal product. The environmental oxidation performance test parameter dataset stored in the database includes: the determined data of the oxide layer thickness within a set time, the determined data of the oxidation rate within a set time, and the determined data of the conductivity of the metal product within a set time. The environmental oxidation performance test index of the metal product is compared with the qualified threshold range of the environmental oxidation performance test of the metal product stored in the database. If the environmental oxidation performance test index of the metal product falls within the qualified threshold range of the environmental oxidation performance test of the metal product stored in the database, the environmental oxidation performance of the metal product corresponding to the environmental oxidation performance test index of the metal product is qualified, and the environmental oxidation performance test index of the metal product is recorded as the environmental oxidation performance test qualified index of the metal product. If the environmental oxidation performance test index of the metal product does not fall within the qualified threshold range of the environmental oxidation performance test of the metal product stored in the database, the environmental oxidation performance test index of the metal product is recorded as the unqualified evaluation value of the environmental oxidation performance of the metal product. The unqualified evaluation value of the environmental oxidation performance of the metal product is compared with the determined threshold of the environmental oxidation performance of the metal product stored in the database. If the unqualified evaluation value of the environmental oxidation performance of the metal product is lower than or equal to the determined threshold of the environmental oxidation performance of the metal product stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade one. If the unqualified evaluation value of the environmental oxidation performance of the metal product is higher than the determined threshold of the environmental oxidation performance of the metal product stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade two.

[0015] Furthermore, the performance test data set of the anti-corrosion coating for metal products includes coating adhesion, coating anti-permeability performance, and coating chemical corrosion resistance. The specific analysis process of the performance test data set of the anti-corrosion coating for metal products is as follows: Apply tensile test and scratch test to the anti-corrosion coating of metal products, and analyze the degree of coating peeling to obtain coating adhesion data; Evaluate the coating anti-permeability performance by measuring the amount of water vapor passing through the anti-corrosion coating within a specified time; Obtain the coating chemical corrosion resistance by analyzing the corrosion of the anti-corrosion coating in acid, alkali, and salt solutions. If the performance of the anti-corrosion coating of the metal product is unqualified, determine the unqualified grade of the anti-corrosion coating performance of the metal product. The specific analysis process is as follows: Perform fusion analysis on the performance test reference data set of the anti-corrosion coating of metal products stored in the database and the performance test data set of the anti-corrosion coating of metal products to obtain the performance test index of the anti-corrosion coating of metal products. The performance test reference data set of the anti-corrosion coating of metal products stored in the database includes coating adhesion reference data, coating anti-permeability performance reference data, and coating chemical corrosion resistance reference data; Compare the performance test index of the anti-corrosion coating of metal products with the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database. If the performance test index of the anti-corrosion coating of metal products is less than or equal to the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database, the performance of the anti-corrosion coating of the metal product corresponding to the performance test index of the anti-corrosion coating of metal products is qualified, and the performance test index of the anti-corrosion coating of metal products is recorded as the qualified index of the performance test of the anti-corrosion coating of metal products. If the performance test index of the anti-corrosion coating of metal products is greater than the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database, the performance of the anti-corrosion coating of the metal product corresponding to the performance test index of the anti-corrosion coating of metal products is unqualified, and the performance test index of the anti-corrosion coating of metal products is recorded as the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products. Compare the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products with the reference threshold of the performance of the anti-corrosion coating of metal products stored in the database. If the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products is lower than or equal to the reference threshold of the performance of the anti-corrosion coating of metal products stored in the database, the evaluation grade of the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products is marked as grade one. If the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products is higher than the reference threshold of the performance of the anti-corrosion coating of metal products stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade two.

[0016] Further, the performance test parameter dataset of the anti-corrosion coating for metal products stored in the database is fused and analyzed with the performance test dataset of the anti-corrosion coating for metal products to obtain the performance test index of the anti-corrosion coating for metal products. The specific analysis process is as follows: Calculate the difference between the coating adhesion and the reference coating adhesion stored in the database to obtain the coating adhesion difference; Calculate the difference between the coating anti-permeability performance and the reference coating anti-permeability performance stored in the database to obtain the coating anti-permeability performance difference; Calculate the difference between the coating chemical corrosion resistance and the reference coating chemical corrosion resistance stored in the database to obtain the coating chemical corrosion resistance difference; Process the coating adhesion difference, the coating anti-permeability performance difference, and the coating chemical corrosion resistance difference to obtain the performance test index of the anti-corrosion coating for metal products.

[0017] An anti-rust performance test data analysis device for metal products includes a metal product mechanical property test module, a metal product environmental oxidation property test module, a metal product anti-corrosion coating performance test module, and a qualified grade classification module, where: The metal product mechanical property test module is used to obtain the metal product mechanical property test dataset and analyze the metal product mechanical property test dataset 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 qualified for the metal product mechanical property. If the metal product mechanical property of the metal product is unqualified, the unqualified grade of the metal product mechanical property of the metal product is determined; The metal product environmental oxidation property test module is used to obtain the metal product environmental oxidation property test dataset of the metal product marked as qualified for the metal product mechanical property and analyze the metal product environmental oxidation property test dataset to determine whether the metal product environmental oxidation property of the metal product is qualified. If the metal product environmental oxidation property of the metal product is qualified, the metal product is marked as qualified for the metal product environmental oxidation property. If the metal product environmental oxidation property of the metal product is unqualified, the unqualified grade of the metal product environmental oxidation property of the metal product is determined; The metal product anti-corrosion coating performance test module is used to obtain the metal product anti-corrosion coating performance test dataset of the metal product marked as qualified for the metal product environmental oxidation property and analyze the metal product anti-corrosion coating performance test dataset 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 qualified for the metal product anti-corrosion coating performance. If the metal product anti-corrosion coating performance of the metal product is unqualified, the unqualified grade of the metal product anti-corrosion coating performance of the metal product is determined; The qualified grade classification module is used to obtain the anti-rust performance grade of the metal product marked as qualified for the metal product anti-corrosion coating performance.

[0018] The present invention has the following beneficial effects:

[0019] The method and device for analyzing the anti-rust performance test data of metal products, by conducting mechanical property tests, environmental oxidation property tests, and anti-corrosion coating property tests on metal products, this comprehensive evaluation method can more comprehensively understand 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. Evaluating the performance under different environmental conditions can select the advantages of metal products suitable for specific application environments, solving the problem that the self-corrosion potential is affected by various factors. For example, under different environmental conditions, its self-corrosion potential may have significant differences, and 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.

[0020] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. Brief Description of the Drawings

[0021] Figure 1 It is a flowchart of the method for analyzing the anti-rust performance test data of the metal products of the present invention.

[0022] Figure 2 It is an image of the evaluation value of the qualified index of the anti-corrosion coating performance test of the metal products of the present invention changing with the difference in coating adhesion.

[0023] Figure 3 It is a flowchart of the device for analyzing the anti-rust performance test data of the metal products of the present invention. Detailed Embodiment

[0024] The embodiments of the present application solve the problem that the self-corrosion potential is affected by various factors through the method and device for analyzing the anti-rust performance test data of metal products. For example, under different environmental conditions, its self-corrosion potential may have significant differences, and 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.

[0025] The general idea for the problems in the embodiments of the present application is as follows:

[0026] First, conduct mechanical property tests on metal products to obtain mechanical test data. Grade the metal products that fail the mechanical tests. Conduct environmental oxidation tests on the metal products that pass the mechanical tests to obtain environmental oxidation test data. Grade the metal products that fail the environmental oxidation tests. Conduct anti-corrosion coating tests on the metal products that pass the environmental oxidation tests to obtain anti-corrosion coating test data. Grade the metal products that fail the anti-corrosion coating tests and grade the metal products that pass the anti-corrosion coating tests.

[0027] Please refer toFigure 1 , an embodiment of the present invention provides a technical solution: a method for analyzing the anti-rust performance data of metal products, including the following steps: obtaining a mechanical property test data set of metal products, and analyzing the mechanical property test data set of metal products to determine whether the mechanical properties of the metal products are qualified. If the mechanical properties of the metal products are qualified, the metal products are marked as qualified in mechanical properties. If the mechanical properties of the metal products are unqualified, the unqualified grade of the mechanical properties of the metal products is determined; obtaining the environmental oxidation performance test data set of the metal products marked as qualified in mechanical properties, and analyzing the environmental oxidation performance test data set of the metal products to determine whether the environmental oxidation performance of the metal products is qualified. If the environmental oxidation performance of the metal products is qualified, the metal products are marked as qualified in environmental oxidation performance. If the environmental oxidation performance of the metal products is unqualified, the unqualified grade of the environmental oxidation performance of the metal products is determined; obtaining the anti-corrosion coating performance test data set of the metal products marked as qualified in environmental oxidation performance, and analyzing the anti-corrosion coating performance test data set of the metal products to determine whether the anti-corrosion coating performance of the metal products is qualified. If the anti-corrosion coating performance of the metal products is qualified, the metal products are marked as qualified in anti-corrosion coating performance. If the anti-corrosion coating performance of the metal products is unqualified, the unqualified grade of the anti-corrosion coating performance of the metal products is determined; obtaining the anti-rust performance grade of the metal products marked as qualified in anti-corrosion coating performance.

[0028] Specifically, the process of obtaining the anti-rust performance grade of the metal products marked as qualified in anti-corrosion coating performance is as follows: obtaining the qualified index of the mechanical property test of the metal products, the qualified index of the environmental oxidation performance test of the metal products, and the qualified index of the anti-corrosion coating performance test of the metal products; comprehensively processing the qualified index of the mechanical property test of the metal products, the qualified index of the environmental oxidation performance test of the metal products, and the qualified index of the anti-corrosion coating performance test of the metal products to obtain the comprehensive anti-rust performance index of the metal products; comparing the comprehensive anti-rust performance index of the metal products with the corrosion grades corresponding to the comprehensive anti-rust performance indexes of each metal product stored in the database to obtain the anti-rust grade corresponding to the comprehensive anti-rust performance index of the metal products.

[0029] In this implementation, the mechanical property test data, environmental oxidation property test data, and anti-corrosion coating property test data of metal products are integrated and analyzed. The comprehensive processing includes the analysis of each data set, normalization processing, and possible data conversion to ensure data comparability and consistency. By performing weighted summation on the comprehensively processed data, a comprehensive anti-rust performance index of the metal product is obtained. The obtained comprehensive anti-rust performance index of the metal product is compared with the corrosion grades corresponding to the comprehensive anti-rust performance indexes of each metal product stored in the database. According to the comparison results, the anti-rust performance grade of the metal product is determined. This 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 the metal product under various conditions. Based on the set corrosion grade standard, the anti-rust performance of the metal product is objectively evaluated and classified, providing a basis for product quality control.

[0030] Specifically, the formula for the comprehensive anti-rust performance index of the metal product is as follows:

[0031] ;

[0032] In the formula, is the comprehensive anti-rust performance index of the metal product, is the qualified index of the mechanical property test of the metal product, is the qualified index of the environmental oxidation property test of the metal product, is the qualified index of the anti-corrosion coating property test of the metal product, is the weight factor of the qualified index of the mechanical property test of the metal product stored in the database, is the weight factor of the qualified index of the environmental oxidation property test of the metal product stored in the database, is the weight factor of the qualified index of the anti-corrosion coating property test of the metal product stored in the database, is the proportionality factor of the qualified index of the environmental oxidation property test of the metal product stored in the database.

[0033] In this implementation, the comprehensive index of the anti-rust performance of metal products is obtained from the mechanical property index of metal products, the environmental oxidation property index of metal products, and the anti-corrosion coating property index of metal products. 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 evaluation of anti-rust performance. The comprehensive index of the anti-rust performance of metal products not only reflects the performance of metal products in a single test, but also considers how these performances 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 the actual use environment. The mechanical property index of metal products reflects the mechanical properties such as the strength and hardness of metal products. A high mechanical property index means that metal products can withstand greater forces and pressures, reduce wear and tear, and extend the service life of metal products. The environmental oxidation property index evaluates the anti-oxidation ability of metal products under specific environmental conditions. A high environmental oxidation property index protects metal products from rusting and corrosion, especially suitable for chemical, marine, and humid environments. The logarithmic function is used to process the environmental oxidation property, where is the scaling factor used to adjust the effect. The base treatment helps to balance the influence of high values on the total index and makes its growth smoother. The scaling factor is obtained from the database. In a specific embodiment, a mapping set between the environmental oxidation property index of metal products and the scaling factor is established through the relationship between the environmental oxidation property index of metal products and the comprehensive index of the anti-rust performance of metal products in historical data. The current environmental oxidation property index of metal products is input into this mapping set to obtain the scaling factor of the environmental oxidation property index of metal products. The anti-corrosion coating property 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 service life of metal products by preventing the contact between the corrosive medium and the metal products. The square root is used to process the anti-corrosion coating property, which helps to reduce the sensitivity of high performance values and makes the impact of performance improvement on the total score gradually decrease. , , are the weight factors of the mechanical property index of metal products, the environmental oxidation property index of metal products, and the anti-corrosion coating property index of metal products, reflecting the importance of each property index in the total evaluation.

[0034] The weighting factors are obtained from the database. In a specific embodiment, based on the relationships among the mechanical property index, environmental oxidation property index, anti-corrosion coating property index, and comprehensive anti-rust property index of metal products in historical data, a mapping set between the mechanical property index, environmental oxidation property index, anti-corrosion coating property index of metal products and the weighting factors is established. By inputting the current mechanical property index, environmental oxidation property index, and anti-corrosion coating property index of metal products into this mapping set, the weighting factors of the mechanical property index, environmental oxidation property index, and anti-corrosion coating property index of metal products are obtained.

[0035] Specifically, the mechanical property test data set of the metal products includes fatigue strength, fatigue crack growth rate, and total plastic strain. The specific analysis process for obtaining the mechanical property test data set of the metal products is as follows: Continuously apply cyclic stress to the metal product until a fatigue crack occurs in the metal product, analyze the maximum stress that the metal product can withstand under the number of cycles to obtain the fatigue strength; Monitor the fatigue cracks occurring in the metal product through a crack monitoring device to obtain the fatigue crack growth rate; Calculate the difference between the peak strain and the residual strain in each cycle respectively to obtain the plastic strain, and accumulate the plastic strains calculated in all cycles to obtain the total plastic strain.

[0036] In this implementation plan, fatigue strength analysis is used to evaluate the durability and lifespan of metal products under repeated loading. By using a fatigue testing machine, cyclic stress is continuously applied to the metal product at each stress level until the metal product undergoes fatigue failure, 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. Using the collected data points, a stress-life S-N curve is plotted on a double-logarithmic coordinate paper. The S-N curve shows the fatigue lifespan of the metal product at different stress levels and can be used to predict the theoretical lifespan of the metal product under any given stress. By analyzing the S-N curve, the number of cycles that the metal product can withstand at the highest stress can be determined, which helps to evaluate the performance limit of the metal product. The fatigue crack growth rate is an important parameter for measuring the crack growth speed of materials under fatigue loading. Using high-precision crack monitoring equipment, such as a scanning electron microscope or a high-resolution camera, can provide clear images of the crack edges for accurately measuring the crack length and ensuring that the crack initiation point is known. During the application of cyclic stress to the metal product, the changes in the crack length are regularly recorded, the data of crack length and number of cycles are collected, and software tools such as ImageJ and MATLAB are used for analysis to calculate the crack growth rate, 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 the metal product under specific stress conditions, the fracture toughness of the metal product can be evaluated. Metal products with high fracture toughness can maintain structural integrity even when cracks appear, thus providing higher safety guarantees. Total plastic strain analysis is a key test for evaluating the deformation and damage accumulation of materials under cyclic stress. In fatigue testing, specific cyclic stress, such as tension, compression, or bending, is applied to each cyclic load. A strain gauge or other strain measurement equipment is used to record the peak strain and residual strain in each cycle. Plastic strain = peak strain - residual strain. The plastic strains in all cycles are accumulated to obtain the total plastic strain. The total plastic strain provides direct data to evaluate the deformation ability of the metal product under repeated loading. A high total plastic strain value indicates that the metal product is more likely to undergo permanent deformation under cyclic stress.

[0037] Specifically, if the mechanical properties of the metal product are unqualified, the unqualified grade of the mechanical properties of the metal product is determined. The specific analysis process is as follows: The mechanical property test parameter dataset of the metal product stored in the database is fused and analyzed with the mechanical property test dataset of the metal product to obtain the mechanical property test index of the metal product. The mechanical property test parameter dataset of the metal product stored in the database includes: fatigue strength parameter data, fatigue crack growth rate parameter data, and total plastic strain parameter data; The mechanical property test index of the metal product is compared with the qualified threshold of the mechanical property test of the metal product stored in the database; If the mechanical property test index of the metal product is less than or equal to the qualified threshold of the mechanical property test of the metal product stored in the database, the mechanical properties of the metal product corresponding to the mechanical property test index are qualified, and the mechanical property test index is recorded as the mechanical property test qualified index of the metal product; If the mechanical property test index of the metal product is greater than the qualified threshold of the mechanical property test of the metal product stored in the database, the mechanical properties of the metal product corresponding to the mechanical property test index are unqualified, and the mechanical property test index is recorded as the mechanical property unqualified evaluation value of the metal product; The mechanical property unqualified evaluation value of the metal product is compared with the mechanical property parameter evaluation value of the metal product stored in the database; If the mechanical property unqualified evaluation value is lower than or equal to the mechanical property parameter evaluation value of the metal product stored in the database, the evaluation grade of the mechanical property unqualified evaluation value is marked as grade one; If the mechanical property unqualified evaluation value is higher than the mechanical property parameter evaluation value of the metal product stored in the database, the evaluation grade of the mechanical property unqualified evaluation value is marked as grade two.

[0038] In this implementation plan, the mechanical property test parameter dataset of the metal product is obtained through historical data. These data are from previous tests. By selecting the historical data of the mechanical property tests of different batches of metal products, the average fatigue strength, the average fatigue crack growth rate, and the average total plastic strain of all metal products are calculated to obtain the mechanical property test parameter dataset of the metal product.

[0039] Compare the actually obtained mechanical property test data set of metal products with the calibrated mechanical property test data set of metal products to obtain the mechanical property test index of metal products. Compare the obtained mechanical property test index of metal products with the qualified threshold of mechanical property test of metal products stored in the database. If the mechanical property test index of metal products is less than or equal to the qualified threshold of mechanical property test of metal products stored in the database, the mechanical property test index is qualified. If the mechanical property test index of metal products is greater than the qualified threshold of mechanical property test of metal products stored in the database, the mechanical property test index is unqualified. For unqualified cases, further compare the mechanical property unqualified evaluation value with the calibrated evaluation value in the database, and classify the unqualified metal products according to the degree of unqualifiedness, so as to take different treatment measures. Through accurate grading, the sources and natures of quality problems can be identified more systematically, providing specific improvement directions for quality control in the manufacturing process.

[0040] For obtaining the qualified threshold of mechanical property test of metal products stored in the database, by collecting a large amount of historical performance data and conducting descriptive statistical analysis on it to determine the distribution of various mechanical property indexes, by calculating the average value and standard deviation of these data, the qualified threshold can be set as the value within a specific confidence interval, usually choosing the average value plus or minus two standard deviations to ensure covering the performance of the vast majority of products, and at the same time eliminating abnormally low results to ensure product quality and reliability.

[0041] For the calibrated evaluation value of mechanical property of metal products stored in the database, by collecting a certain number of historical data of mechanical property unqualified evaluation values, determining the distribution characteristics of the data through applying descriptive statistical analysis, and using inferential statistical techniques (such as confidence intervals and hypothesis testing) to determine the statistical significance threshold of mechanical property unqualified evaluation values, this threshold can be set based on the lowest acceptable standard of metal products under mechanical property tests.

[0042] The calculation formula for obtaining the mechanical property test index of metal products is as follows (all parameters are scalar processed before calculation to remove units):

[0043] ;

[0044] In the formula, is the qualified index of mechanical property test of metal products, is the fatigue strength, is the calibrated fatigue strength stored in the database, is the fatigue crack growth rate, is the calibrated fatigue crack growth rate stored in the database, T is the total plastic strain, is the calibrated total plastic strain stored in the database, is the weighting factor of the fatigue strength stored in the database, is the weighting factor of the fatigue crack growth rate stored in the database, is the weighting factor of the total plastic strain stored in the database, is the adjustment factor of the qualified index of the mechanical properties test of metal products stored in the database.

[0045] It should be noted that the above-mentioned mechanical properties test index of metal products is obtained from the fatigue strength, fatigue crack growth rate and total plastic strain. By combining these three parameters of fatigue strength, fatigue crack growth rate and total plastic strain, 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 index. Fatigue strength usually refers to the ability of a metal product to withstand the maximum stress without fatigue failure under repeated stress or strain conditions. Fatigue strength is obtained through fatigue tests, which involve subjecting the metal product to cyclic loading conditions until the sample breaks or reaches a predetermined number of cycles. This can help engineers design structures that can withstand the expected loading cycles, select materials with suitable fatigue properties for specific applications, and ensure safety. The fatigue crack growth rate describes the rate at which a crack in a metal product propagates under cyclic loading once it appears. This is measured by monitoring the growth of the crack length with the number of loading cycles. This parameter is crucial for understanding the fatigue crack growth behavior of materials, especially in the crack propagation stage. Through the fatigue crack growth model, the remaining life of the metal product can be predicted, which is essential for maintenance and replacement plans. The total plastic strain refers to the accumulated permanent deformation of a metal product during loading. Plastic deformation is a characterization of the permanent change in the structure of a metal product, different from elastic deformation. Plastic deformation does not recover after the load is removed. Measuring the total plastic strain helps evaluate the performance of metal materials under extreme loads and helps assess the reliability of metal products in actual applications, especially under high loads or extreme environmental conditions. This formula evaluates by combining the performance indexes of fatigue strength, fatigue crack growth rate and total plastic strain with the ratios of their respective corresponding parameter values, weights and adjustment indexes, thus providing a method to quantify and comprehensively evaluate the performance differences of metal products between standard tests and actual application environments. Through the adjustment of the weighting factor and the index factor, it can be flexibly applied according to different application scenarios and performance requirements, using a non-linear function to adjust the sensitivity of the data, making the model more accurately reflect the changes in different performance levels, and introducing interaction terms to consider the mutual influence between different test indexes, which is particularly important for understanding the behavior of materials under complex stress states. The introduction of enables the impact of this part on the mechanical property test index of metal products to be adjusted. It takes into account the interaction effects among fatigue strength, crack growth rate data, and total plastic strain, and can be set based on the past mechanical property test indexes of metal products. It is obtained by analyzing the relationship between the mechanical property test indexes of metal products in historical data and the actual mechanical property test indexes of metal products. The appropriate value of .

[0046] The weight factor is obtained from the database. In a specific embodiment, through the relationship between fatigue strength, fatigue crack growth rate, total plastic strain, and the qualified index of the mechanical property test of metal products in historical data, a mapping set of fatigue strength, fatigue crack growth rate, total plastic strain, and weight factor is established. The current fatigue strength, fatigue crack growth rate, and total plastic strain are input into this mapping set to obtain the weight factors of fatigue strength, fatigue crack growth rate, and total plastic strain.

[0047] 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 conductivity of the metal product within a set time. The process of obtaining the metal product environmental oxidation performance test data set is as follows: obtain the morphology of the oxide layer of the metal product, and measure and analyze 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 conductivity of the metal product within a set time.

[0048] In this embodiment, at the beginning of the test, first observe the initial oxidation state of the metal product surface using an optical microscope or a scanning electron microscope, record the morphological characteristics of the oxide layer, observe and measure the thickness of the oxide layer within a set time interval multiple times, such as using an electronic caliper or measurement software under a microscope. Divide the thickness difference of the oxide layer within the set time interval measured continuously twice by the time interval to calculate the oxidation rate within the set time. For example, subtract the thickness obtained from the first measurement from the thickness obtained from the second measurement, and the resulting difference represents the growth amount of the oxide layer during this period. Then, divide this growth amount by the time interval between the two measurements, which can be in hours or days, and the final quotient is the oxidation rate within the set time. Set the conductivity of the metal product within the set time through the four-point probe method. Apply a constant current through two external probes, and at the same time measure the voltage difference through two internal probes. Conduct the first conductivity test when the metal product surface is clean and free of oxide layer, and record the data as the baseline. After the metal product has undergone oxidation treatment for a certain period of time, conduct the conductivity test again 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 evaluate 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, the oxidation behavior of different metal products under the same environmental conditions can be accurately understood. By understanding the oxidation rate and conductivity changes within the set time for metal products in electronic and electrical applications, the oxidation impact can be reduced.

[0049] Specifically, if the environmental oxidation performance of the metal product is unqualified, the unqualified grade of the environmental oxidation performance of the metal product is determined. The specific analysis process is as follows: The metal product environmental oxidation performance test parameter determination data set stored in the database is fused and analyzed with the metal product environmental oxidation performance test data set to obtain the metal product environmental oxidation performance test index. The metal product environmental oxidation performance test parameter determination data set stored in the database includes: the oxidation layer thickness determination data within a set time, the oxidation rate determination data within a set time, and the electrical conductivity determination data of the metal product within a set time. The metal product environmental oxidation performance test index is compared with the qualified threshold interval of the metal product environmental oxidation performance test stored in the database. If the metal product environmental oxidation performance test index falls within the qualified threshold interval of the metal product environmental oxidation performance test stored in the database, the 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 qualified threshold interval of the metal product environmental oxidation performance test stored in the database, the metal product environmental oxidation performance test index is recorded as the unqualified evaluation value of the metal product environmental oxidation performance. The unqualified evaluation value of the metal product environmental oxidation performance is compared with the determined threshold of the metal product environmental oxidation performance stored in the database. If the unqualified evaluation value of the metal product environmental oxidation performance is lower than or equal to the determined threshold of the metal product environmental oxidation performance stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade one. If the unqualified evaluation value of the metal product environmental oxidation performance is higher than the determined threshold of the metal product environmental oxidation performance stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade two.

[0050] In this implementation plan, the dataset for determining the environmental oxidation performance of metal products stored in the database is derived from previous tests. By selecting the historical data of the environmental oxidation performance tests of different batches of metal products, the average thickness of the oxide layer, the average oxidation rate, and the average conductivity of the metal products within the set time are calculated to obtain the dataset for determining the environmental oxidation performance of metal products. The environmental oxidation performance test index of the metal products is analyzed and calculated, and its position within the qualified threshold range stored in the database is determined. If the environmental oxidation performance test index of the metal products is within the qualified threshold range, the environmental oxidation performance of the metal products is qualified; if the environmental oxidation performance test index of the metal products is not within the qualified threshold range, the environmental oxidation performance of the metal products is unqualified. For unqualified metal products, the environmental oxidation performance test index of the metal products is further compared with the qualified threshold range of the environmental oxidation performance test of metal products stored in the database to determine the severity of non-conformance. The unqualified metal products are divided into first-level and second-level. The first level may indicate minor non-conformance, and the second level indicates serious non-conformance, which can ensure that all products are within the predetermined safety threshold and reduce failures or safety accidents caused by insufficient material performance.

[0051] The acquisition method of the dataset for determining the environmental oxidation performance of metal products can be achieved through long-term accumulation of experimental data. Specifically, researchers and engineers conduct tests on the thickness of the oxide layer, the oxidation rate, and the conductivity of metal products of different types within a set time, regularly record the key indicators of the thickness of the oxide layer, the oxidation rate, and the conductivity of metal products within the set time. After multiple repeated tests and data collection, these data are summarized and sorted to form a dataset for determining the environmental oxidation performance of metal products for subsequent performance evaluation and comparative analysis.

[0052] The acquisition method of the qualified threshold for the environmental oxidation performance test of metal products can be achieved through statistical analysis methods. The environmental oxidation performance test data of a large number of metal product samples with known excellent performance are collected, and the distribution ranges of the thickness of the oxide layer, the oxidation rate, and the conductivity of metal products within the set time are determined through statistical analysis. Then, based on the statistical results, a reasonable range is determined as the qualified threshold range. For example, the data within the range of plus or minus two standard deviations of the mean value of the environmental oxidation performance test data of metal products is used as the qualified standard.

[0053] The calculation formula for obtaining the environmental oxidation performance test index of metal products is as follows (all parameters are scalar processed before calculation to remove units):

[0054] ;

[0055] In the formula, is the qualified index for the environmental oxidation performance of metal products, is the thickness of the oxide layer within the set time, is the oxidation rate within the set time, is the conductivity of the metal product within the 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, is the weight factor of the conductivity of the metal product within the set time stored in the database, is the reference data of the oxide layer thickness within the set time stored in the database, is the reference data of the oxidation rate within the set time stored in the database, is the reference data of the conductivity of the metal product within the set time stored in the database.

[0056] It should be noted that the environmental oxidation performance index of metal products is obtained from the oxidation layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal products within a set time. It aims to comprehensively evaluate the oxidation and corrosion resistance of metal products under specific environmental conditions. The combination of the oxidation layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal products within a set time can provide a multi-angle performance measurement, making the evaluation results more comprehensive and reliable. The oxidation 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 products, affecting the overall durability and stability of the metal products. The oxidation rate within a set time directly reflects the performance of the metal products in actual applications and interacts with the oxidation layer thickness within a set time. When the metal products are first exposed to the oxidation environment, the oxidation rate is usually high because the metal surface is directly in contact with the oxidation medium. During this period, the oxidation layer forms and grows rapidly. The change in conductivity is related to the chemical changes during the oxidation process. For example, a decrease in conductivity may be due to the thickening of the oxidation layer, which affects the electron conduction path of the metal products. The oxidation layer thickness refers to the thickness of the oxidation layer formed on the metal surface within a specific time. It is an important indicator to measure the antioxidant ability of the metal under environmental conditions. A thicker oxidation layer may indicate that the metal has been more severely corroded during the oxidation process. The oxidation rate refers to the growth rate of the oxidation layer on the metal surface within a specific time. It reflects the rate of the oxidation reaction of the metal under specific environmental conditions and is usually expressed as the increase in the oxidation layer thickness per unit time. A lower oxidation rate usually indicates that the metal has better antioxidant performance. The conductivity of the metal products within a set time reflects the electrical conductivity performance of the metal products, which is usually related to the purity of the metal products, the alloy composition, and the presence of any possible surface or internal oxidation layer. The conductivity of the metal products within a set time is an important parameter to evaluate the purity and alloy consistency of the metal products. High conductivity usually indicates that the metal products have high purity and fewer impurities. High conductivity usually means that the metal has low resistance and good electrical conductivity. The S-shaped function is adopted , the change in conductivity is processed in a non-linear manner to ensure a smoother scoring transition 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 role of the reference data for the oxide layer thickness within a set time is to standardize the actually measured oxide layer thickness within a set time and use it as a standard or reference value to compare with the actually measured oxide layer thickness within a set time. The reference data for the oxidation rate within a set time is used as a standard or reference value for the oxidation rate within a set time for comparison, enabling the comparison of the oxidation rates within a set time of different metal products under the same or different environmental conditions. The reference data for the conductivity of the metal product is used as a standard or reference value for conductivity comparison, allowing the comparison of the performance differences in conductivity of different metals. Through the introduction of reference data, the formula provides an objective evaluation method that can accurately quantify and analyze the environmental oxidation performance of metal products. The application of the weight factor makes the formula highly 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.

[0057] The weight factor is obtained from the 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 weight factor is established based on 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 in historical data, and the qualified index of the environmental oxidation performance of the metal product. 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 this mapping set to obtain the weight factors for 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.

[0058] It should be noted that the larger the evaluation value of the qualified index for the environmental oxidation performance test of metal products, the better the environmental oxidation functionality of the metal products detected by the detection system. 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 evaluation value of the qualified index for the environmental oxidation performance test of metal products gradually increases. The weight factor of the oxide layer thickness within the set time remains unchanged at 0.4, the oxidation rate within the set time remains unchanged at 5, the weight factor of the oxidation rate within the set time remains unchanged at 0.3, the conductivity of the metal products within the set time remains unchanged at 0.02, the weight factor of the conductivity of the metal products within the set time remains unchanged at 0.3, the reference data of the oxide layer thickness within the set time remains unchanged at 5, the reference data of the oxidation rate within the set time remains unchanged at 5, and the reference data of the conductivity of the metal products within the set time remains unchanged at 0.02. The example values of the average immersion corrosion depth are as follows:

[0059] Table 1: Example values of the oxide layer thickness within the set time in the evaluation value of the qualified index for the environmental oxidation performance test of metal products

[0060]

[0061] Specifically, the performance test data set of the anti-corrosion coating for metal products includes coating adhesion, coating anti-permeability performance, and coating chemical corrosion resistance. The specific analysis process of the performance test data set of the anti-corrosion coating for metal products is as follows: Apply tensile test and scratch test to the anti-corrosion coating of metal products, and analyze the degree of coating peeling to obtain coating adhesion data; Evaluate the coating anti-permeability performance by measuring the amount of water vapor passing through the anti-corrosion coating within a specified time; Obtain the coating chemical corrosion resistance by analyzing the corrosion of the anti-corrosion coating in acid, alkali, and salt solutions. If the performance of the anti-corrosion coating of the metal product is unqualified, determine the unqualified grade of the anti-corrosion coating of the metal product. The specific analysis process is as follows: Fuse and analyze the performance test reference data set of the anti-corrosion coating of metal products stored in the database with the performance test data set of the anti-corrosion coating of metal products to obtain the performance test index of the anti-corrosion coating of metal products. The performance test reference data set of the anti-corrosion coating of metal products stored in the database includes coating adhesion reference data, coating anti-permeability performance reference data, and coating chemical corrosion resistance reference data. Compare the performance test index of the anti-corrosion coating of metal products with the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database. If the performance test index of the anti-corrosion coating of metal products is less than or equal to the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database, the performance of the anti-corrosion coating of the metal product corresponding to the performance test index of the anti-corrosion coating of metal products is qualified, and the performance test index of the anti-corrosion coating of metal products is recorded as the qualified index of the performance test of the anti-corrosion coating of metal products. If the performance test index of the anti-corrosion coating of metal products is greater than the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database, the performance of the anti-corrosion coating of the metal product corresponding to the performance test index of the anti-corrosion coating of metal products is unqualified, and the performance test index of the anti-corrosion coating of metal products is recorded as the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products. Compare the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products with the reference threshold of the performance of the anti-corrosion coating of metal products stored in the database. If the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products is lower than or equal to the reference threshold of the performance of the anti-corrosion coating of metal products stored in the database, the evaluation grade of the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products is marked as grade one. If the unqualified evaluation value of the performance test of the anti-corrosion coating of metal products is higher than the reference threshold of the performance of the anti-corrosion coating of metal products stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade two.

[0062] In this implementation scheme, the coating adhesion is measured by using a tensile testing device. A special tensile test pad is pasted on the surface of the anti-corrosion coating of the metal product. After fixing the metal product, 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 obtained is the coating adhesion. A scratch tester is also used to apply a constant pressure on the coating surface and make cross scratches with a sharp tool. An amplification device is used to observe the peeling and falling off of the coating at the scratched area. The coating adhesion is evaluated according to the peeling area and degree of the coating at the scratched area. The coating adhesion test helps to evaluate the durability and reliability of the anti-corrosion coating in actual use and ensure that it will not peel off easily under mechanical stress. The anti-permeability performance of the coating is evaluated by applying a constant water vapor pressure on one side of the metal product coated with the anti-corrosion coating while keeping the other side dry. The amount of water vapor passing through the coating is measured at specific time intervals. The metal product is weighed at regular intervals in a constant humidity environment, and the weight change amount in each time interval is calculated and divided by the time interval to obtain the water vapor permeability per unit time, so as to evaluate the anti-permeability performance of the coating. The water vapor permeability performance test can evaluate the protection ability of the coating in a humid environment and help predict its durability in actual applications. For the coating chemical corrosion resistance test, the metal products coated with the anti-corrosion coating are respectively exposed to different chemical solutions such as acid, alkali, and salt solutions. The temperature and immersion time of the test environment are controlled. A microscope or other detection equipment is used to observe the changes on the coating surface, such as blistering, cracking, peeling, etc. The corrosion degree of the coating by different chemical solutions is compared to evaluate the chemical corrosion resistance performance of the coating. The chemical corrosion test can help determine the protection effect of the coating in various harsh environments and ensure its reliability and durability in special applications such as chemical industry and marine environments.

[0063] The dataset for the performance determination of anti-corrosion coatings on metal products stored in the database. These data are from previous tests. By selecting the historical data of the performance tests of anti-corrosion coatings on metal products in different batches, calculating the average value of the adhesion of all coatings, the average value of the anti-permeability performance of the coatings, and the average value of the chemical corrosion resistance of the coatings, the dataset for the performance determination of anti-corrosion coatings on metal products is obtained. The dataset of the performance test of the actually measured anti-corrosion coatings on metal products is fused and analyzed with the dataset for the performance determination of anti-corrosion coatings on metal products stored in the database. By integrating the current test data and 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, Python, etc., data fusion and calculation are carried out to obtain the performance test index of the anti-corrosion coatings on metal products. The performance test index of the anti-corrosion coatings on metal products obtained from the fusion analysis is compared with the qualified threshold of the performance test of the anti-corrosion coatings on metal products stored in the database to determine whether the performance test of the anti-corrosion coatings on metal products is qualified. The unqualified evaluation value of the performance of the anti-corrosion coatings on metal products is compared with the determination threshold of the performance of the anti-corrosion coatings on metal products stored in the database to determine the severity of the unqualified. The unqualified metal products are divided into first-level and second-level. The first-level may indicate a minor non-compliance, and the second-level indicates a serious non-compliance. Through the method of fusion analysis, multiple performance indicators can be comprehensively considered to provide a comprehensive evaluation of the anti-corrosion coating performance. By setting different levels, the evaluation of unqualified products can be refined, helping to identify the severity of the problem, which can guide the optimization of anti-corrosion coating materials and processes, and improve product quality and service life.

[0064] The method for obtaining the qualified threshold of the performance test of anti-corrosion coatings on metal products can adopt statistical analysis methods: By statistically analyzing a large amount of historical test data, determining the average value and its standard deviation of each performance index, and then setting a reasonable confidence interval (such as a 95% confidence interval) as the qualified threshold range.

[0065] The method for obtaining the determination threshold of the performance of anti-corrosion coatings on metal products stored in the database can be through a large number of laboratory tests, measuring and recording the performance data of the adhesion of the coating, the anti-permeability performance of the coating, and the chemical corrosion resistance of the coating, and applying statistical analysis methods to determine the range and distribution of the performance parameters, thereby setting the determination threshold.

[0066] The calculation formula for obtaining the performance test index of anti-corrosion coatings on metal products is as follows (all parameters are scalar processed before calculation to remove units):

[0067] ;

[0068] In the formula, is the qualified index of the performance test of anti-corrosion coatings on metal products, is the difference in the adhesion of the coating, is the difference in the anti-permeation performance of the coating, is the difference in the chemical corrosion resistance of the coating, is the weighting factor of the coating adhesion, is the weighting factor of the anti-permeation performance of the coating, is the weighting factor of the chemical corrosion resistance of the coating, is the reference data of the coating adhesion stored in the database, is the reference data of the anti-permeation performance of the coating stored in the database, is the reference data of the chemical corrosion resistance of the coating stored in the database.

[0069] It should be noted that the performance test index of the anti-corrosion coating for metal products is obtained from the coating adhesion, anti-permeation performance and chemical corrosion resistance of the coating, which can more comprehensively evaluate and quantify the overall performance of the anti-corrosion coating, ensuring that the anti-corrosion coating can meet the performance standards in all important aspects. Strong coating adhesion helps to maintain the integrity of the coating, thus more effectively blocking the intrusion of moisture and corrosive chemicals. Among them, the coating adhesion refers to the adhesion strength between the coating and the metal product. High adhesion means that the coating can be closely 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 the corrosive environment due to the peeling off of the coating. Logarithmic processing , for coating adhesion, this processing can reduce the influence of high values, so that the growth of the index will not have too much impact on the overall evaluation and maintain the balance of the evaluation. The anti-permeation performance of the coating describes the ability of the coating to block the penetration of water, oxygen and other harmful substances. Effective anti-permeation performance can prevent these substances from reaching the surface of the metal product, thus protecting the metal product from corrosion and improving the anti-corrosion property of the metal product, especially in humid or salt spray environments. Square root processing , for the anti-permeation performance of the coating, this processing helps to reduce the sensitivity of larger values, so that the increase in 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 chemical substances (such as acids, alkalis, salts, etc.). This is a key index to evaluate the protection effect of the anti-corrosion coating in a chemical environment, enabling the metal product to be used in a more demanding chemical environment, such as a chemical plant or a marine environment, protecting the surface of the metal product from being attacked by chemical substances and ensuring the reliability of the metal product. The chemical corrosion resistance of the coating directly affects the overall evaluation in a linear manner, because the chemical corrosion resistance performance is usually directly related to the chemical stability of the anti-corrosion coating and does not require non-linear conversion. By introducing the reference data, the gap between the performance of the anti-corrosion coating for 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 targeted. , , , corresponding to the importance of coating adhesion, coating anti-permeation performance, and coating chemical corrosion resistance respectively. The magnitude of the weight factor reflects the relative importance of each performance index in a specific application.

[0070] The weight factors are obtained from the database. In a specific embodiment, based on the relationships between coating adhesion, coating anti-permeation performance, coating chemical corrosion resistance in historical data and the qualified index of the anti-corrosion coating performance of metal products, a mapping set of coating adhesion, coating anti-permeation performance, coating chemical corrosion resistance and weight factors is established. Input the current coating adhesion, coating anti-permeation performance, and coating chemical corrosion resistance into this mapping set to obtain the weight factors of coating adhesion, coating anti-permeation performance, and coating chemical corrosion resistance.

[0071] As Figure 2 shown, it is an image of the evaluation value of the qualified index of the anti-corrosion coating performance of metal products changing with the difference in coating adhesion. Among them, the x-axis represents the difference in coating adhesion, and the y-axis represents the evaluation value of the qualified index of the anti-corrosion coating performance of metal products, which can help intuitively understand how the difference in coating adhesion affects the evaluation value of the qualified index of the anti-corrosion coating performance of metal products. The greater the difference in coating adhesion, the greater the evaluation value of the qualified index of the anti-corrosion coating performance of metal products, indicating that the functionality of the anti-corrosion coating of the metal products detected by the detection system is better. As the difference in coating adhesion increases, the influence of the difference in coating adhesion on the evaluation value of the qualified index of the anti-corrosion coating performance of metal products gradually weakens. The weight factor of coating adhesion is 0.4 and remains unchanged, the coating anti-permeation performance is 50 and remains unchanged, the weight factor of coating anti-permeation performance is 0.3 and remains unchanged, the coating chemical corrosion resistance is 80 and remains unchanged, the weight factor of coating chemical corrosion resistance is 0.3 and remains unchanged, the reference data for coating adhesion is 30 and remains unchanged, the reference data for coating anti-permeation performance is 40 and remains unchanged, the reference data for coating chemical corrosion resistance is 70 and remains unchanged. The example values of the difference in coating adhesion are as follows:

[0072] Table 2: Example values of the difference in coating adhesion in the evaluation value of the qualified index of the anti-corrosion coating performance of metal products

[0073]

[0074] Specifically, the performance test reference dataset of the anti-corrosion coating for metal products stored in the database is fused and analyzed with the performance test dataset of the anti-corrosion coating for metal products to obtain the performance test index of the anti-corrosion coating for metal products. The specific analysis process is as follows: Calculate the difference between the coating adhesion and the reference coating adhesion stored in the database to obtain the coating adhesion difference; Calculate the difference between the coating anti-permeability performance and the reference coating anti-permeability performance stored in the database to obtain the coating anti-permeability performance difference; Calculate the difference between the coating chemical corrosion resistance and the reference coating chemical corrosion resistance stored in the database to obtain the coating chemical corrosion resistance difference; Process the coating adhesion difference, the coating anti-permeability performance difference and the coating chemical corrosion resistance difference to obtain the performance test index of the anti-corrosion coating for metal products.

[0075] In this implementation plan, for the comprehensive processing of the coating adhesion difference, the coating anti-permeability performance difference and the coating chemical corrosion resistance difference, weighted average or other appropriate methods can be used to obtain the performance test index of the anti-corrosion coating for metal products. By fusing and analyzing the data of the coating adhesion, anti-permeability performance and chemical corrosion resistance, the performance of the anti-corrosion coating under different environmental 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, helps manufacturers understand the comprehensive performance characteristics of the anti-corrosion coating. Based on the comparison and analysis with the set reference data, it is possible to objectively determine whether the coating performance meets the expected technical standards or application requirements, ensuring the consistency and quality stability in the production process of the anti-corrosion coating and avoiding product degradation or failure caused by the quality problems of the anti-corrosion coating.

[0076] Please refer to Figure 3, An anti-rust performance test data analysis device for metal products, including a mechanical property test module for metal products, an environmental oxidation property test module for metal products, an anti-corrosion coating property test module for metal products, and a qualified grade classification module, where: The mechanical property test module for metal products is used to obtain a mechanical property test data set of metal products, analyze the mechanical property test data set of metal products, and judge whether the mechanical properties of the metal products are qualified. If the mechanical properties of the metal products are qualified, the metal products are marked as qualified in mechanical properties. If the mechanical properties of the metal products are unqualified, the unqualified grade of the mechanical properties of the metal products is determined; The environmental oxidation property test module for metal products is used to obtain an environmental oxidation property test data set of metal products marked as qualified in mechanical properties, analyze the environmental oxidation property test data set of metal products, and judge whether the environmental oxidation properties of the metal products are qualified. If the environmental oxidation properties of the metal products are qualified, the metal products are marked as qualified in environmental oxidation properties. If the environmental oxidation properties of the metal products are unqualified, the unqualified grade of the environmental oxidation properties of the metal products is determined; The anti-corrosion coating property test module for metal products is used to obtain an anti-corrosion coating property test data set of metal products marked as qualified in environmental oxidation properties, analyze the anti-corrosion coating property test data set of metal products, and judge whether the anti-corrosion coating properties of the metal products are qualified. If the anti-corrosion coating properties of the metal products are qualified, the metal products are marked as qualified in anti-corrosion coating properties. If the anti-corrosion coating properties of the metal products are unqualified, the unqualified grade of the anti-corrosion coating properties of the metal products is determined; The qualified grade classification module is used to obtain the anti-rust performance grade of metal products marked as qualified in anti-corrosion coating properties.

[0077] In summary, the present application has at least the following effects:

[0078] 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. Evaluating the performance under different environmental conditions can select metal products suitable for specific application environments, solving the problem that the self-corrosion potential is affected by various factors. For example, under different environmental conditions, its self-corrosion potential may vary significantly, and 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.

[0079] Those skilled in the art will appreciate that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) that contain computer-usable program code.

[0080] The present invention is described with reference to the 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 flow and / or block in the flowchart and / or block diagram, as well as the combination of flows 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 the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices produce means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0081] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0083] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0084] Obviously, those skilled in the art can make various modifications and variations 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 equivalent technologies, 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, characterized in that It includes the following steps: Obtain a mechanical property test dataset of metal products, analyze the mechanical property test dataset of metal products, and determine whether the mechanical properties of the metal products are qualified. If the mechanical properties of the metal products are qualified, mark the metal products as qualified in mechanical properties. If the mechanical properties of the metal products are unqualified, determine the unqualified grade of the mechanical properties of the metal products; Obtain an environmental oxidation property test dataset of the metal products marked as qualified in mechanical properties, analyze the environmental oxidation property test dataset of the metal products, and determine whether the environmental oxidation properties of the metal products are qualified. If the environmental oxidation properties of the metal products are qualified, mark the metal products as qualified in environmental oxidation properties. If the environmental oxidation properties of the metal products are unqualified, determine the unqualified grade of the environmental oxidation properties of the metal products; Obtain an anti-corrosion coating property test dataset of the metal products marked as qualified in environmental oxidation properties, analyze the anti-corrosion coating property test dataset of the metal products, and determine whether the anti-corrosion coating properties of the metal products are qualified. If the anti-corrosion coating properties of the metal products are qualified, mark the metal products as qualified in anti-corrosion coating properties. If the anti-corrosion coating properties of the metal products are unqualified, determine the unqualified grade of the anti-corrosion coating properties of the metal products; Obtain the rust prevention performance grade of the metal products marked as qualified in anti-corrosion coating properties; The specific analysis process for obtaining the rust prevention performance grade of the metal products marked as qualified in anti-corrosion coating properties is as follows: Obtain the qualified index of the mechanical property test of the metal products, the qualified index of the environmental oxidation property test of the metal products, and the qualified index of the anti-corrosion coating property test of the metal products; Perform comprehensive processing on the qualified index of the mechanical property test of the metal products, the qualified index of the environmental oxidation property test of the metal products, and the qualified index of the anti-corrosion coating property test of the metal products to obtain the comprehensive index of the rust prevention performance of the metal products; Compare the comprehensive index of the rust prevention performance of the metal products with the corrosion grades corresponding to the comprehensive indexes of the rust prevention performance of each metal product stored in the database to obtain the rust prevention grade corresponding to the comprehensive index of the rust prevention performance of the metal products.

2. The anti-rust performance test data analysis method for a metal product according to claim 1, characterized in that: The formula for the comprehensive index of the rust prevention performance of the metal products is: ； In the formula, is the comprehensive index of the anti-rust performance of metal products, is the qualified index of the mechanical property test of metal products, is the qualified index of the environmental oxidation property test of metal products, is the qualified index of the anti-corrosion coating property test of metal products, is the weight factor of the qualified index of the mechanical property test of metal products stored in the database, is the weight factor of the qualified index of the environmental oxidation property test of metal products stored in the database, is the weight factor of the qualified index of the anti-corrosion coating property test of metal products stored in the database, is the proportionality factor of the qualified index of the environmental oxidation property test of metal products stored in the database.

3. The data analysis method for the anti-rust performance test of a metal product according to claim 2, characterized in that: The mechanical property test dataset of the metal products includes fatigue strength, fatigue crack growth rate, and total plastic strain; The specific analysis process for obtaining the mechanical property test dataset of the metal products is as follows: Continuously apply cyclic stress to the 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 the fatigue strength; Monitor the fatigue cracks occurring in the metal products through a crack monitoring device to obtain the fatigue crack growth rate; Calculate the difference between the peak strain and the residual strain in each cycle respectively to obtain the plastic strain, and accumulate the plastic strains calculated in all cycles to obtain the total plastic strain.

4. A method for analyzing data on the rust prevention performance of a metal product according to claim 3, characterized in that: If the mechanical properties of the metal product are unqualified, determine the unqualified grade of the mechanical properties of the metal product. The specific analysis process is as follows: Fusion analysis is performed on the mechanical property test parameter determination data set of the metal product stored in the database and the mechanical property test data set of the metal product to obtain the mechanical property test index of the metal product. The mechanical property test parameter determination data set of the metal product stored in the database includes: fatigue strength determination data, fatigue crack growth rate determination data, and total plastic strain determination data; Compare the mechanical property test index of the metal product with the qualified threshold of the mechanical property test of the metal product stored in the database; If the mechanical property test index of the metal product is less than or equal to the qualified threshold of the mechanical property test of the metal product stored in the database, the mechanical properties of the metal product corresponding to the mechanical property test index are qualified, and the mechanical property test index is recorded as the mechanical property test qualified index of the metal product; If the mechanical property test index of the metal product is greater than the qualified threshold of the mechanical property test of the metal product stored in the database, the mechanical properties of the metal product corresponding to the mechanical property test index are unqualified, and the mechanical property test index is recorded as the unqualified evaluation value of the mechanical properties of the metal product; Compare the unqualified evaluation value of the mechanical properties of the metal product with the determined 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 determined evaluation value of the mechanical properties of the metal product stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical properties of the metal product is marked as grade one; If the unqualified evaluation value of the mechanical properties of the metal product is higher than the determined evaluation value of the mechanical properties of the metal product stored in the database, the evaluation grade of the unqualified evaluation value of the mechanical properties of the metal product is marked as grade two.

5. The data analysis method for the rust prevention performance test of a metal product according to claim 2, characterized in that: The environmental oxidation performance test data set of the metal product includes the oxidation layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal product within a set time; Obtain the environmental oxidation performance test data set of the metal product. The specific analysis process is as follows: Obtain the morphology of the oxidation layer of the metal product, and measure and analyze the morphology of the oxidation layer at set time intervals to obtain the oxidation layer thickness within a set time, the oxidation rate within a set time, and the conductivity of the metal product within a set time.

6. The anti-rust performance test data analysis method for a metal product according to claim 5, characterized in that: If the environmental oxidation performance of the metal product is unqualified, determine the unqualified grade of the environmental oxidation performance of the metal product. The specific analysis process is as follows: Fusion analysis is performed on the environmental oxidation performance test parameter determination data set of the metal product stored in the database and the environmental oxidation performance test data set of the metal product to obtain the environmental oxidation performance test index of the metal product. The environmental oxidation performance test parameter determination data set of the metal product stored in the database includes: oxidation layer thickness determination data within a set time, oxidation rate determination data within a set time, and conductivity determination data of the metal product within a set time; Compare the environmental oxidation performance test index of the metal product with the qualified threshold interval of the environmental oxidation performance test of the metal product stored in the database; If the environmental oxidation performance test index of a metal product falls within the qualified threshold range of the environmental oxidation performance test of metal products stored in the database, then the metal product corresponding to the environmental oxidation performance test index of the metal product has qualified environmental oxidation performance of the metal product, and the environmental oxidation performance test index of the metal product is recorded as the qualified index of the environmental oxidation performance test of the metal product; If the environmental oxidation performance test index of a metal product does not fall within the qualified threshold range of the environmental oxidation performance test of metal products stored in the database, then the environmental oxidation performance test index of the metal product is recorded as the unqualified evaluation value of the environmental oxidation performance of the metal product; Compare the unqualified evaluation value of the environmental oxidation performance of the metal product with the reference threshold of the environmental oxidation performance of the metal products stored in the database; If the unqualified evaluation value of the environmental oxidation performance of the metal product is lower than or equal to the reference threshold of the environmental oxidation performance of the metal products stored in the database, then the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade one; If the unqualified evaluation value of the environmental oxidation performance of the metal product is higher than the reference threshold of the environmental oxidation performance of the metal products stored in the database, then the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as grade two.

7. A method for analyzing the rust prevention performance data of a metal product according to claim 2, characterized in that: The anti-corrosion coating performance test data set of the metal product includes coating adhesion, coating anti-permeability performance, and coating chemical corrosion resistance; The specific analysis process of the anti-corrosion coating performance test data set of the metal product is as follows: Apply tensile test and scratch test to the anti-corrosion coating of the metal product, and analyze the degree of peeling of the anti-corrosion coating to obtain the coating adhesion data; Evaluate the coating anti-permeability performance by measuring the amount of water vapor passing through the anti-corrosion coating within a specified time; Obtain the coating chemical corrosion resistance by analyzing the corrosion of the anti-corrosion coating in acid, alkali, and salt solutions; If the anti-corrosion coating performance of the metal product is unqualified, determine the unqualified grade of the anti-corrosion coating performance of the metal product. The specific analysis process is as follows: Fuse and analyze the reference data set of the anti-corrosion coating performance test of the metal product stored in the database and the data set of the anti-corrosion coating performance test of the metal product to obtain the anti-corrosion coating performance test index of the metal product. The reference data set of the anti-corrosion coating performance test of the metal product stored in the database includes coating adhesion reference data, coating anti-permeability performance reference data, and coating chemical corrosion resistance reference data; Compare the anti-corrosion coating performance test index of the metal product with the qualified threshold of the anti-corrosion coating performance test of the metal product stored in the database; If the anti-corrosion coating performance test index of the metal product is less than or equal to the qualified threshold of the anti-corrosion coating performance test of the metal product stored in the database, then the anti-corrosion coating performance of the metal product corresponding to the anti-corrosion coating performance test index of the metal product is qualified, and the anti-corrosion coating performance test index of the metal product is recorded as the qualified index of the anti-corrosion coating performance test of the metal product; If the performance test index of the anti-corrosion coating of a metal product is greater than the qualified threshold of the performance test of the anti-corrosion coating of metal products stored in the database, then the metal product corresponding to the performance test index of the anti-corrosion coating of the metal product fails the performance test of the anti-corrosion coating of the metal product, and the performance test index of the anti-corrosion coating of the metal product is recorded as the unqualified evaluation value of the performance of the anti-corrosion coating of the metal product; Compare the unqualified evaluation value of the performance of the anti-corrosion coating of the metal product with the reference threshold of the performance of the anti-corrosion coating of the metal product stored in the database; If the unqualified evaluation value of the performance of the anti-corrosion coating of the metal product is lower than or equal to the reference threshold of the performance of the anti-corrosion coating of the metal product stored in the database, then the evaluation grade of the unqualified evaluation value of the performance of the anti-corrosion coating of the metal product is marked as first level; If the unqualified evaluation value of the performance of the anti-corrosion coating of the metal product is higher than the reference threshold of the performance of the anti-corrosion coating of the metal product stored in the database, then the evaluation grade of the unqualified evaluation value of the mechanical performance of the metal product is marked as second level.

8. A method for analyzing the rust prevention performance data of a metal product according to claim 7, characterized in that: Fuse and analyze the reference data set of the performance test of the anti-corrosion coating of the metal product stored in the database and the data set of the performance test of the anti-corrosion coating of the metal product to obtain the performance test index of the anti-corrosion coating of the metal product. The specific analysis process is as follows: Calculate the difference between the coating adhesion and the reference coating adhesion stored in the database to obtain the coating adhesion difference; Calculate the difference between the coating anti-permeability performance and the reference coating anti-permeability performance stored in the database to obtain the coating anti-permeability performance difference; Calculate the difference between the coating chemical corrosion resistance and the reference coating chemical corrosion resistance stored in the database to obtain the coating chemical corrosion resistance difference; Process the coating adhesion difference, the coating anti-permeability performance difference and the coating chemical corrosion resistance difference to obtain the performance test index of the anti-corrosion coating of the metal product.

9. An apparatus for analyzing the anti-rust performance test data of a metal product using the method according to any one of claims 1-8, characterized in that, Including: The metal product mechanical property test module, the metal product environmental oxidation property test module, the metal product anti-corrosion coating performance test module and the qualified grade classification module, where: The metal product mechanical property test module is used to obtain the metal product mechanical property test data set, analyze the metal product mechanical property test data set, and judge whether the metal product's mechanical property is qualified. If the metal product's mechanical property is qualified, then mark the metal product as qualified in mechanical property of the metal product. If the metal product's mechanical property is unqualified, then determine the unqualified grade of the metal product's mechanical property; The metal product environmental oxidation property test module is used to obtain the metal product environmental oxidation property test data set of the metal product marked as qualified in mechanical property, analyze the metal product environmental oxidation property test data set, and judge whether the metal product's environmental oxidation property is qualified. If the metal product's environmental oxidation property is qualified, then mark the metal product as qualified in environmental oxidation property of the metal product. If the metal product's environmental oxidation property is unqualified, then determine the unqualified grade of the metal product's environmental oxidation property; The anti-corrosion coating performance test module for metal products is used to obtain a metal product anti-corrosion coating performance test data set recorded as qualified for the environmental oxidation performance of metal products, and analyze the metal product anti-corrosion coating performance test data set to determine whether the anti-corrosion coating performance of the metal product is qualified. If the anti-corrosion coating performance of the metal product is qualified, the metal product is marked as qualified for the anti-corrosion coating performance of the metal product. If the anti-corrosion coating performance of the metal product is unqualified, the unqualified grade of the anti-corrosion coating performance of the metal product is determined. The qualified grade classification module is used to obtain the rust prevention performance grade of the metal product recorded as qualified for the anti-corrosion coating performance of the metal product.

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