A temperature testing method and device for protective material

Abstract

The present invention discloses a temperature testing method and device for protective materials. The temperature testing method for protective materials belongs to the field of testing technology, and includes the following steps: a central processing unit receives a temperature test signal, and records the designated protective material to be tested as the designated protective material, thereby statistically transmitting the basic information of the designated protective material to a data processor; the data processor receives the basic information of the designated protective material for processing, and obtains the temperature test execution parameters of the designated protective material; based on the temperature test execution parameters of the designated protective material, the designated protective material is temperature tested by a temperature control device, and the temperature test data of the designated protective material is statistically obtained. The present invention achieves effective utilization of temperature measurement resources by analyzing the surface scan images of the designated protective material at each constant temperature test temperature, and solves the problem of low utilization of temperature measurement resources in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and in particular to a temperature testing method and device for protective materials. Background Art

[0002] With the development of technology, companies are paying more and more attention to the safety issues of specified protective materials. High temperature can cause the specified protective materials to dissolve and be damaged. In modern protective equipment, it is crucial to evaluate the performance of materials under high temperature and impact conditions.

[0003] The existing temperature test method for designated protective materials is to place the material sample in a thermogravimetric analyzer, gradually increase the temperature, and record the mass change curve of the sample. The relationship between mass change and temperature is analyzed to determine the thermal stability of the material, or the material sample is placed in a differential scanning calorimeter, gradually increase or decrease the temperature, and record the heat change curve absorbed or released by the sample.

[0004] For example, the thermal insulation test system, test method and heat treatment method of thermally designated protective materials announced in the invention patent with announcement number: CN108020577B include: realizing multi-state thermal insulation performance testing of thermally designated protective materials for aerospace use that is closer to the service environment. At the same time, the thermally designated protective material is subjected to single-sided heat treatment or sintering during its preparation process to form a temperature gradient in the thickness direction. The surface experiences high temperature and is stable when in service at high temperature, while the temperature gradually decreases inwards, thereby improving both the mechanical properties and thermal insulation properties of the material. According to tests, the overall mechanical properties of the material can be improved by about 20%, while the thermal conductivity can be reduced by more than 10%.

[0005] For example, the invention patent with announcement number: CN112378776B announces a heat-mechanical-oxygen-laser multi-field coupled ground test system for thermally specified protective materials, including: a complex atmosphere reaction chamber, an induction heating subsystem, a mechanical loading subsystem, a multi-component gas supply subsystem, a vacuum pumping subsystem, a high-power laser loading subsystem, a material response test subsystem, a water cooling subsystem and an integrated control subsystem. The invention adopts a complex atmosphere reaction chamber, a multi-component gas supply subsystem and a vacuum pumping subsystem to provide an adjustable environmental atmosphere for the sample under test, loads high temperature to the sample under test through the induction heating subsystem, loads uniaxial tensile stress to the sample under test through the mechanical loading subsystem, provides high-energy laser irradiation to the sample under test through the high-power laser loading subsystem, and uses the material response test subsystem to monitor the surface and back temperatures of the sample under test, the surface morphology changes and stress data of the sample under test, so as to realize thermally specified protective materials. Ground simulation test of multi-field coupling.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] In the prior art, a constant temperature chamber test method is usually used to place the material in a constant temperature environment for long-term temperature treatment. The testing method is relatively simple, and a fixed number of tests are usually set for the protective material. Due to differences in the characteristics of the protective material during the test, the accuracy of the protective material test cannot be fully guaranteed by the solid-state number of tests. Therefore, the current temperature testing method for protective materials has the problem of low utilization of temperature measurement resources. Summary of the invention

[0008] The embodiments of the present application solve the problem of low utilization rate of temperature measurement resources in the prior art by providing a temperature testing method and device for protective materials, thereby achieving effective utilization of temperature measurement resources.

[0009] An embodiment of the present application provides a temperature testing method for protective materials, comprising the following steps: a central processing unit receives a temperature test signal, and records a designated protective material to be tested as a designated protective material, thereby statistically transmitting basic information of the designated protective material to a data processor; the data processor receives the basic information of the designated protective material for processing, and obtains temperature test execution parameters for the designated protective material; based on the temperature test execution parameters of the designated protective material, a temperature test is performed on the designated protective material through a temperature control device, and temperature test data of the designated protective material is statistically obtained; the data processor processes the temperature test data of the designated protective material, obtains the temperature test result of the designated protective material, and transmits it to a visual display interface connected to the temperature control device for display.

[0010] Furthermore, the basic information of the designated protective material includes: the type, size parameters, density and thermal expansion coefficient of the designated protective material.

[0011] Furthermore, the specific steps of the data processor receiving the basic information of the designated protective material for processing are: according to the type of the designated protective material, matching with the comparison data of each type of sample designated protective materials stored in the database, obtaining the comparison data of the sample designated protective material consistent with the type of the designated protective material, and marking it as the comparison data of the designated protective material; the comparison data of the designated protective material includes: comparison size parameters, comparison density and comparison thermal expansion coefficient; based on the basic information of the designated protective material and the comparison data of the designated protective material, processing to obtain the basic information index of the designated protective material; the basic information index of the designated protective material is used to quantify the basic information of the designated protective material, and to characterize the difficulty of temperature testing of the designated protective material.

[0012] Furthermore, obtaining the temperature test execution parameters of the specified protective material specifically includes: based on the basic information indicators of the specified protective material, and based on the constant temperature test times corresponding to each basic information indicator interval stored in the database, obtaining the constant temperature test times corresponding to the basic information indicators of the specified protective material, and marking them as the temperature test execution parameters of the specified protective material.

[0013] Furthermore, the temperature test execution parameters based on the specified protective material are used to perform a temperature test on the specified protective material through a temperature control device, and the temperature test data of the specified protective material is obtained by statistics, specifically including: extracting a standard temperature measurement range of the specified protective material from a database, and based on the number of constant temperature tests of the specified protective material, randomly selecting a number of constant temperature test temperatures that are consistent with the number of constant temperature tests from the standard temperature measurement range, and recording them as each constant temperature test temperature; performing a temperature test on the specified protective material through a temperature control device, and obtaining the temperature test data of the specified protective material by statistics; the temperature test data of the specified protective material includes a surface scan image of the specified protective material at each constant temperature test temperature.

[0014] Furthermore, the specific steps of the data processor processing the temperature test data of the specified protective material are as follows: based on the body surface scan images of the specified protective material at each constant temperature test temperature, and comparing them one by one with the initial scan images of the specified protective material before the constant temperature test, to obtain a body surface difference set of the specified protective material at each constant temperature test temperature;

[0015] The body surface difference set includes a transverse deformation amount, a longitudinal deformation amount, a color difference value of each sampling point, a fiber curling degree, a number of surface micro cracks, and a length of the surface micro cracks.

[0016] Furthermore, the specific steps for obtaining the temperature test result of the specified protective material are: based on the surface difference set of the specified protective material under each constant temperature test temperature, evaluate and obtain the temperature test evaluation value of the specified protective material, wherein the temperature test evaluation value of the specified protective material is used to characterize the performance of the specified protective material under the constant temperature test condition; obtain the temperature test evaluation threshold of the specified protective material from the database; compare the temperature test evaluation value of the specified protective material with the temperature test evaluation threshold of the specified protective material, if the temperature test evaluation value of the specified protective material is less than the temperature test evaluation threshold of the specified protective material, then define the temperature test result of the specified protective material as a qualified product, and if the temperature test evaluation value of the specified protective material is above the temperature test evaluation threshold of the specified protective material, then define the temperature test result of the specified protective material as a defective product.

[0017] Furthermore, the calculation formula of the temperature test evaluation value of the specified protective material is:

[0018] ;

[0019] In the formula, Indicates the temperature test evaluation value of the specified protective material. represents the first temperature test evaluation value, Indicates the second temperature test evaluation value. represents the correction factor evaluated by the first temperature test, represents the second temperature test evaluation correction factor;

[0020] ;

[0021] In the formula, represents the temperature test evaluation value of the specified protective material, j represents the number of each constant temperature test, , m represents the number of constant temperature tests, represents the lateral deformation of the specified protective material at the jth constant temperature test temperature, It represents the longitudinal deformation of the specified protective material at the jth constant temperature test temperature. Indicates the allowable lateral deformation of the protective material specified in the database. Represents the allowable longitudinal deformation of the database protection material, It indicates the fiber curling degree of the specified protective material at the jth constant temperature test temperature. Indicates the permissible fiber curl of the specified protective material in the database. represents the first temperature test evaluation value, represents the influence weight of the shape variable, Indicates the fiber curl influence weight.

[0022] Furthermore, it also includes: real-time monitoring and calibration of the operation of the temperature control device; obtaining each constant temperature test temperature, and matching it with the adaptive operating power of the temperature control device corresponding to various test temperatures defined in the database to obtain the adaptive operating power of the temperature control device corresponding to each constant temperature test temperature; monitoring the real-time operating power of the temperature control device at each constant temperature test temperature, and obtaining the real-time operating power of the temperature control device at each constant temperature test temperature; comparing the real-time operating power of the temperature control device at each constant temperature test temperature with the adaptive operating power of the temperature control device corresponding to each constant temperature test temperature. If the difference between the real-time operating power of the temperature control device at each constant temperature test temperature and the corresponding adaptive operating power exceeds the preset power allowable deviation value, the real-time operating power control of the temperature control device at the constant temperature test temperature is adjusted to the corresponding adaptive operating power.

[0023] An embodiment of the present application provides a temperature testing device for protective materials, including: a data receiving module, a data processing module, a test module and a result evaluation module: a data receiving module: used for a central processing unit to receive a temperature test signal, and record the designated protective material to be tested as the designated protective material, thereby statistically transmitting basic information of the designated protective material to the data processor; a data processing module: used for a data processor to receive basic information of the designated protective material for processing, and obtain temperature test execution parameters of the designated protective material; a test module: used for performing a temperature test on the designated protective material through a temperature control device based on the temperature test execution parameters of the designated protective material, and statistically obtaining temperature test data of the designated protective material; a result evaluation module: used for a data processor to process according to the temperature test data of the designated protective material, obtain the temperature test result of the designated protective material, and transmit it to a visual display interface connected to the temperature control device for display.

[0024] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0025] 1. The present invention provides a temperature testing method and device for protective materials. The basic information of a specified protective material is received and processed to obtain the temperature test execution parameters of the specified protective material, and a targeted test is performed on the specified protective material, thereby making up for the shortcomings caused by the current fixed number of evaluations of protective materials, thereby achieving effective utilization of temperature measurement resources and effectively solving the problem of low utilization of temperature measurement resources in the prior art.

[0026] 2. The present invention receives basic information of designated protective materials through a data processor for processing, thereby obtaining temperature test execution parameters of the designated protective materials and then performing detailed temperature tests on the designated protective materials, thereby realizing a temperature test plan tailored to the material characteristics, thereby ensuring the pertinence and effectiveness of the test process.

[0027] 3. By analyzing the surface scan images of the specified protective material at each constant temperature test temperature, the surface difference set of the specified protective material is obtained and its temperature test evaluation value is evaluated, thereby achieving an accurate evaluation of the performance of the protective material under multiple test conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A flow chart of a temperature testing method for a protective material provided in an embodiment of the present application;

[0029] Figure 2 A temperature test evaluation data diagram of a specified protective material provided in an embodiment of the present application;

[0030] Figure 3A module diagram of a temperature testing device for protective materials provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] The embodiment of the present application solves the problem of low utilization rate of temperature measurement resources in the prior art by providing a temperature testing method and device for protective materials. The temperature test signal is received by a central processing unit and the designated protective material to be tested is recorded as the designated protective material, so that basic information of the designated protective material is counted and transmitted to the data processor, thereby realizing effective utilization of temperature measurement resources.

[0032] The technical solution in the embodiment of the present application is to solve the problem of low utilization rate of temperature measurement resources. The overall idea is as follows:

[0033] The temperature test signal is received by the central processing unit, and the designated protective material to be tested is recorded as the designated protective material, thereby statistically transmitting the basic information of the designated protective material to the data processor; the data processor receives the basic information of the designated protective material for processing, and obtains the temperature test execution parameters of the designated protective material; based on the temperature test execution parameters of the designated protective material, the temperature test is performed on the designated protective material through the temperature control device, and the temperature test data of the designated protective material is statistically obtained; the data processor processes the temperature test data of the designated protective material, obtains the temperature test result of the designated protective material, and transmits it to the visual display interface connected to the temperature control device for display, thereby achieving effective utilization of temperature measurement resources.

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] like Figure 1 As shown, it is a flow chart of a temperature testing method for a protective material provided in an embodiment of the present application. The method is applied to a temperature testing device for a protective material, and the method includes the following steps: a central processing unit receives a temperature test signal, and records a designated protective material to be tested as a designated protective material, thereby statistically transmitting basic information of the designated protective material to a data processor; the data processor receives the basic information of the designated protective material for processing, and obtains temperature test execution parameters of the designated protective material; based on the temperature test execution parameters of the designated protective material, a temperature test is performed on the designated protective material through a temperature control device, and temperature test data of the designated protective material is statistically obtained; the data processor processes the temperature test data of the designated protective material, obtains the temperature test result of the designated protective material, and transmits it to a visual display interface connected to the temperature control device for display.

[0036] In this embodiment, the central processing unit is a computer processing hardware responsible for recording the protective material to be tested as the designated protective material, so as to prepare for the subsequent data processor to perform data processing steps. After receiving the test signal, the central processing unit will mark the protective material to be tested as "designated protective material". This operation can be completed by reading the unique identifier of the protective material (such as ID, barcode, etc.). The data processor is a computer processing hardware used to receive basic information from the central processing unit. The data processor generates temperature test execution parameters suitable for the material based on the characteristics of the protective material (such as thermal expansion coefficient, size, etc.). The temperature control device starts heating or cooling the protective material according to the temperature test execution parameters provided by the data processor, so that the material reaches the predetermined target temperature. During the test, the temperature control device monitors the temperature of the material in real time and adjusts it according to the preset parameters to ensure that the temperature remains within the target range. The visual display interface displays, including but not limited to, generating a temperature change curve of the material during the test.

[0037] Furthermore, the basic information of the designated protective material includes: the type, dimension parameters, density and thermal expansion coefficient of the designated protective material. The dimension parameters of the designated protective material include: the length of the designated protective material, the width of the designated protective material and the thickness of the designated protective material.

[0038] In this embodiment, the type of the specified protective material includes the material of the specified protective material, such as carbon fiber composite material, glass fiber composite material, Kevlar fiber and polymer polyethylene fiber. The material type determines the physical and chemical behavior of the material under different temperature conditions, such as thermal conductivity, melting point, thermal expansion, etc. These behaviors directly affect the response characteristics of the material in the temperature test. The length of the specified protective material, the width of the specified protective material, and the thickness of the specified protective material define the physical form of the material in the test environment. The size parameters affect the thermal conduction path and heat dissipation rate of the material. In the temperature test, larger materials may have different temperature distribution characteristics and require different power adjustment strategies. Density is the mass per unit volume of the material, and density reflects the density of the material. The average thickness is the average value of the material thickness. Especially in non-uniform materials (such as layered or fiber materials), the average thickness represents the overall thickness characteristics of the material in the test. The thermal expansion coefficient is a key parameter for predicting the dimensional change of the material during heating or cooling. In the temperature test, understanding the thermal expansion coefficient of the material helps to predict its deformation at the test temperature and prevent material structure failure or damage.

[0039] Furthermore, the specific steps for the data processor to receive the basic information of the designated protective material for processing are: according to the type of the designated protective material, matching with the comparison data of each type of sample designated protective materials stored in the database, obtaining the comparison data of the sample designated protective material consistent with the type of the designated protective material, and marking it as the comparison data of the designated protective material; the comparison data of the designated protective material includes: comparison size parameters, comparison density and comparison thermal expansion coefficient; the comparison size parameters include: comparison length, comparison width and comparison thickness.

[0040] Based on the basic information of the specified protective material and the comparison data of the specified protective material, the basic information index of the specified protective material is processed to obtain the basic information index of the specified protective material; the basic information index of the specified protective material is used to quantify the basic information of the specified protective material and to characterize the difficulty of temperature testing of the specified protective material.

[0041] In this embodiment, the formula for quantifying the basic information of the specified protective material is:

[0042] ;

[0043] In the formula, Indicates the basic information indicators of the specified protective materials. Indicates the length of the specified protective material. Indicates the comparative length of the specified protective material, Indicates the width of the specified protective material size parameter. Indicates the contrast width of the specified protective material, Indicates the thickness of the specified protective material size parameters. Indicates the comparative thickness of the specified protective material, Indicates the density of the specified protective material, Indicates the comparative density of the specified protective material, represents the thermal expansion coefficient of the specified protective material, The comparative coefficient of thermal expansion of the specified shielding material, Indicates that the length affects the weight, Indicates that the width affects the weight, Indicates that thickness affects the weight, Indicates that the size parameter affects the weight, represents the density influence weight, The coefficient of thermal expansion affects the weight.

[0044] The length influence weight, width influence weight and thickness influence weight can be obtained from the database. The mapping sets of the length, width and thickness of the protective material and their corresponding weights are established respectively through the relationship between the length, width and thickness of the protective material and the size parameters of the protective material in the historical data. The corresponding length influence weight, width influence weight and thickness influence weight in the mapping set are obtained by inputting the real-time length, width and thickness of the protective material.

[0045] Large density differences will affect the thermal conductivity and strength of the material, making the test more difficult. The larger the thermal expansion coefficient of the material, the more unstable its performance in temperature changes, and the greater the test difficulty. By evaluating the temperature test difficulty of the specified protective material, that is, analyzing the basic information indicators of the specified protective material, sufficient data support is provided for the analysis of the subsequent temperature test execution parameters.

[0046] The size parameter influence weight, density influence weight and thermal expansion coefficient influence weight can be obtained through the database, and the relationship between the size parameters, density and thermal expansion coefficient of the protective material in the historical data and the temperature test difficulty of the specified protective material is used to establish a mapping set of the size parameters, density and thermal expansion coefficient of the protective material and their corresponding weights. By inputting the real-time size parameters, density and thermal expansion coefficient of the protective material, the corresponding size parameter influence weight, density influence weight and thermal expansion coefficient influence weight in the mapping set are obtained.

[0047] Through multiple tests, the behavior of the material during temperature changes can be better captured, so as to obtain more reliable readings. Materials with large thermal expansion coefficients will expand or contract significantly when the temperature rises or falls, which may cause changes in the surface or internal structure of the material. This volume change will affect the reading of the test equipment, so that the test results at different time points may vary greatly, thereby reducing the stability of the test results. The data processor finds the sample protective material that best matches the type of the specified protective material by comparing the type of the specified protective material with the sample data in the database. The sample data in the database usually includes historical data and performance records of different types of materials (such as different types of high-density fibers) under various test conditions. By matching with the existing sample data, the data processor can draw on existing test experience and quickly determine reasonable test parameters for the specified protective material. This process can greatly reduce the uncertainty in the experimental design and ensure the scientificity and efficiency of the test process. After the matching is completed, the data processor extracts sample data consistent with the specified protective material type. These comparison data include test parameters and results of similar types of materials. After being marked, these data will be used as the benchmark data of the specified protective material for subsequent analysis. The comparison data provides a reference basis for the temperature test of the specified protective material, which helps to optimize the test process and predict possible test results. For example, a sample material with a higher density may have a specific expansion behavior at high temperature. Through these comparison data, test preparations can be made in advance. Through these comparison data, the data processor can more accurately simulate the behavior of the material during temperature changes and set reasonable boundary conditions for temperature testing. For example, if the material in the comparison data shows high expansion at a specific temperature, special attention may need to be paid to this temperature point during testing. The basic information index provides a quantitative reference for the difficulty of testing the material. For example, if the thermal expansion coefficient and density of a material are both large, the basic information index may indicate that the material requires more refined control and more stringent test conditions in temperature testing. The quantitative basic information index makes the planning of temperature testing more scientific and accurate. Through these indicators, the performance of the material in the test can be predicted, the test parameters can be adjusted, and the safety and effectiveness of the test can be ensured. For example, materials with high testing difficulty may require longer testing time and stricter temperature control accuracy.

[0048] Furthermore, the temperature test execution parameters of the specified protective material are obtained, specifically including: based on the basic information indicators of the specified protective material, and based on the constant temperature test times corresponding to each basic information indicator interval stored in the database, the constant temperature test times corresponding to the basic information indicators of the specified protective material are obtained, and marked as the temperature test execution parameters of the specified protective material.

[0049] In this embodiment, historical test data under different basic information indicator intervals are stored in the database. Each interval usually corresponds to a different number of constant temperature tests. For example, high-density materials may require more constant temperature tests to ensure the stability of the data. By matching the basic information indicators of the specified protective material with the indicator intervals in the database, the most appropriate number of constant temperature tests can be determined. This step ensures that the test plan is driven by historical experience and data, and is scientific and targeted. The number of constant temperature tests refers to the number of times a constant temperature is maintained at a specific temperature for multiple tests. This is typically used to evaluate the thermal stability and physical property changes of materials under continuous heating conditions. For example, material deformation, crack generation or color change, etc., the determined number of constant temperature tests ensures the accuracy and repeatability of the test.

[0050] Furthermore, based on the temperature test execution parameters of the specified protective material, the temperature test is performed on the specified protective material through the temperature control device, and the temperature test data of the specified protective material is statistically obtained, specifically including: extracting the standard temperature measurement range of the specified protective material from the database, and based on the number of constant temperature tests of the specified protective material, randomly extracting a number of constant temperature test temperatures that are consistent with the number of constant temperature tests from the standard temperature measurement range, and recording them as each constant temperature test temperature; performing temperature testing on the specified protective material through the temperature control device, and statistically obtaining the temperature test data of the specified protective material; the temperature test data of the specified protective material includes a surface scan image of the specified protective material at each constant temperature test temperature.

[0051] In this embodiment, the standard temperature measurement range of the specified protective material is (-40°C, 80°C), and a number of constant temperature test temperatures that are consistent with the number of constant temperature tests are randomly selected from the standard temperature measurement range and recorded as each constant temperature test temperature.

[0052] Furthermore, the specific steps for the data processor to process the temperature test data of the specified protective material are: based on the surface scan images of the specified protective material at each constant temperature test temperature, and comparing them one by one with the initial scan images of the specified protective material before the constant temperature test, to obtain the surface difference set of the specified protective material at each constant temperature test temperature; the surface difference set includes the lateral deformation variable, the longitudinal deformation variable, the color difference value of each sampling point, the fiber curling degree, the number of surface microcracks, and the length of the surface microcracks.

[0053] In this embodiment, when performing temperature test data processing of the protective material, the data processor first acquires and stores the scanned image. Initially, before the constant temperature test, the protective material is initially scanned by a high-resolution scanner to acquire and save a reference image, which is called the "initial scanned image". After each constant temperature test, the same scanning tool is used to scan the material surface again to obtain the "scanned image after the constant temperature test". These images are stored according to the test temperature and test sequence number for subsequent comparison and analysis. In the image comparison and difference detection stage, the data processor first ensures that the scanned image after the constant temperature test is aligned with the initial scanned image in the same coordinate system. Image alignment is achieved by matching feature points to ensure the accuracy of the comparison. The data processor uses image difference technology to compare the scanned image after the constant temperature test with the initial scanned image pixel by pixel to detect the changes in the material after the constant temperature test. This difference operation can reveal the characteristics of the material such as deformation, color change, crack generation, etc., and image processing libraries such as OpenCV are often used to complete the difference and detection. The data processor then generates a surface difference set. First, by comparing the pixel position changes in the same area of ​​the image, the lateral and longitudinal deformations of the material are calculated. These deformations can be obtained through image deformation analysis or displacement field calculation. Then, at the pre-defined sampling points, the data processor compares the color difference between the image after the constant temperature test and the initial image. The color difference value is obtained by Euclidean distance or histogram comparison in the color space. For fiber curl, the data processor uses image analysis tools to detect the curvature change of the fiber on the surface of the material. The curl is extracted by curve fitting or edge detection algorithm and compared with the initial state. Finally, the data processor detects and counts the micro cracks on the surface of the material through image binarization and morphological operations, and calculates the number and length of cracks. All the data obtained from these analyses, such as lateral deformation, longitudinal deformation, color difference value, fiber curl, number and length of surface micro cracks, etc., are summarized to form a "surface difference set". The difference set data is stored in a database or file system for subsequent analysis and calculation of the temperature test evaluation value of the protective material. This process ensures that the behavior and durability of the material under different temperature conditions can be accurately evaluated, thereby providing a key reference for the performance of the protective material.

[0054] Furthermore, the specific steps for obtaining the temperature test result of the specified protective material are: based on the surface difference set of the specified protective material under each constant temperature test temperature, evaluate and obtain the temperature test evaluation value of the specified protective material, wherein the temperature test evaluation value of the specified protective material is used to characterize the performance of the specified protective material under the constant temperature test condition; obtain the temperature test evaluation threshold of the specified protective material from the database; compare the temperature test evaluation value of the specified protective material with the temperature test evaluation threshold of the specified protective material, if the temperature test evaluation value of the specified protective material is less than the temperature test evaluation threshold of the specified protective material, then define the temperature test result of the specified protective material as a qualified product, and if the temperature test evaluation value of the specified protective material is above the temperature test evaluation threshold of the specified protective material, then define the temperature test result of the specified protective material as a defective product.

[0055] In this embodiment, the method can effectively screen out materials that meet quality requirements and ensure the reliability and safety of the final product. It can also help identify and exclude materials that do not meet the standards and prevent them from entering the production or use process, thereby ensuring the overall quality of the product.

[0056] Furthermore, the calculation formula for the temperature test evaluation value of the specified protective material is:

[0057] ;

[0058] In the formula, Indicates the temperature test evaluation value of the specified protective material. represents the first temperature test evaluation value, Indicates the second temperature test evaluation value. represents the correction factor evaluated by the first temperature test, represents the second temperature test evaluation correction factor, , .

[0059] The temperature test evaluation data table for the specified protective materials is shown in Table 1:

[0060] Table 1 Temperature test evaluation data table for specified protective materials

[0061]

[0062] Depend on Figure 2As can be seen from Table 1, the temperature test evaluation value of the specified protective material is between 0.370938134 and 0.547276276, and the fluctuation is relatively stable, which means that the preset protective material has a certain stability. The temperature test evaluation value of the specified protective material of group 8 is 0.547276276, indicating that the performance of the preset protective material is the worst in this measurement, and the temperature test evaluation value of the specified protective material of group 10 is 0.370938134, indicating that the performance of the preset protective material is the best in this test.

[0063] ;

[0064] In the formula, represents the first temperature test evaluation value, j represents the number of each constant temperature test, , m represents the number of constant temperature tests, represents the lateral deformation of the specified protective material at the jth constant temperature test temperature, It represents the longitudinal deformation of the specified protective material at the jth constant temperature test temperature. Indicates the allowable lateral deformation of the protective material specified in the database. Represents the allowable longitudinal deformation of the database protection material, It indicates the fiber curling degree of the specified protective material at the jth constant temperature test temperature. Indicates the permissible fiber curl of the specified protective material in the database. represents the influence weight of the shape variable, Indicates the fiber curl influence weight.

[0065] The first temperature test evaluation correction factor and the second temperature test evaluation correction factor can be obtained through a database, and a mapping set of the first temperature test evaluation value and the second temperature test evaluation value and their corresponding correction factors can be established respectively through the relationship between the first temperature test evaluation value and the second temperature test evaluation value and the temperature test evaluation value in the historical database, and the first temperature test evaluation correction factor and the second temperature test evaluation correction factor corresponding to the mapping set can be obtained by inputting the real-time first temperature test evaluation value and the second temperature test evaluation value.

[0066] In this embodiment, the lateral deformation and longitudinal deformation in the formula respectively represent the dimensional changes of the material in the jth constant temperature test. These deformations are closely related to the fiber curl, which reflects the structural changes of the fibers inside the material after being heated. The performance of the fiber curl is compared with its corresponding allowable fiber curl. If the actual curl exceeds the allowable range, it may affect the strength and durability of the material, thereby reducing its protective performance. A large color difference value may mean that the material surface is aged or damaged, while an increase in the number and length of cracks may indicate damage to the material structure. These surface changes, together with the deformation and fiber curl, have a comprehensive impact on the overall performance of the material.

[0067] ;

[0068] In the formula, represents the second temperature test evaluation value, Indicates the number of each sampling point, , n represents the total number of sampling points, j represents the number of each constant temperature test, , m frequency, It represents the color difference value of the i-th sampling point of the specified protective material at the j-th constant temperature test temperature. Indicates the allowable color difference value of the protective material specified in the database. It represents the number of cracks of the specified protective material at the jth isothermal test temperature. Indicates the number of cracks allowed for a specified protective material in the database. It represents the total crack length of the specified protective material at the jth isothermal test temperature. Indicates the total allowable crack length of the protective material specified in the database, Indicates that the color difference value affects the weight, represents the influence weight of the number of cracks, Indicates the total crack length influence weight.

[0069] The influence weight of the deformation variable, the influence weight of the fiber curling degree, the influence weight of the color difference value, the influence weight of the number of cracks and the influence weight of the total crack length can be obtained through the database. Through the relationship between the deformation variable of the specified protective material, the fiber curling degree of the specified protective material, the color difference value of the specified protective material, the number of cracks of the specified protective material and the total crack length of the specified protective material in the historical data and the temperature test evaluation value of the specified protective material, a mapping set of the deformation variable of the specified protective material, the fiber curling degree of the specified protective material, the color difference value of the specified protective material, the number of cracks of the specified protective material and the total crack length of the specified protective material and their corresponding weights is established respectively. By inputting the real-time deformation variable of the specified protective material, the fiber curling degree of the specified protective material, the color difference value of the specified protective material, the number of cracks of the specified protective material and the total crack length of the specified protective material, the corresponding deformation variable influence weight, fiber curling influence weight, color difference value influence weight, crack number influence weight and total crack length influence weight in the mapping set are obtained.

[0070] Furthermore, a temperature testing method for protective materials is characterized in that it also includes: real-time monitoring and calibration of the operation of the temperature control device; obtaining each constant temperature test temperature, and matching it with the adaptive operating power of the temperature control device corresponding to various test temperatures defined in the database to obtain the adaptive operating power of the temperature control device corresponding to each constant temperature test temperature; monitoring the real-time operating power of the temperature control device at each constant temperature test temperature, and obtaining the real-time operating power of the temperature control device at each constant temperature test temperature; comparing the real-time operating power of the temperature control device at each constant temperature test temperature with the adaptive operating power of the temperature control device corresponding to each constant temperature test temperature, if the difference between the real-time operating power of the temperature control device at each constant temperature test temperature and the corresponding adaptive operating power exceeds the preset power allowable deviation value, then the real-time operating power control of the temperature control device at the constant temperature test temperature is adjusted to the corresponding adaptive operating power.

[0071] In this embodiment, a preset power allowable deviation value is obtained in the database. If the difference between the real-time operating power of the temperature control device at each constant temperature test temperature and the corresponding adapted operating power exceeds the preset power allowable deviation value, the real-time operating power control of the temperature control device at the constant temperature test temperature is adjusted to the corresponding adapted operating power.

[0072] For each constant temperature test temperature, the corresponding adapted operating power is searched from the database. The adapted operating power in the database is pre-defined based on previous test experience and equipment characteristics to ensure that the temperature control device can operate stably at this temperature. The adapted operating power is usually an optimal value that can maintain the temperature stability of the protective material at a specific temperature while minimizing energy consumption. During each constant temperature test, the actual operating power of the temperature control device is monitored in real time. Through sensors and monitoring systems, the power value of the current temperature control device in operation is obtained. The purpose of real-time monitoring is to ensure that the actual operating power is consistent with the adapted operating power that should be achieved in theory, to avoid temperature deviation caused by power fluctuations, and to compare the real-time obtained operating power with the preset adapted operating power. If the difference between the two exceeds the preset power allowable deviation value (for example, ±5%), adjustment is required. The power allowable deviation value is set according to the performance characteristics of the equipment and the accuracy requirements of the test, indicating the maximum allowable deviation range of the power. If the actual operating power is lower than the adapted operating power and the difference exceeds the allowable deviation range, the power output needs to be increased. The adjusted power will be monitored again through the sensor to ensure that the adjusted operating power is consistent with the adapted operating power and that the temperature is stable at the target value. If there is still a deviation after adjustment, continue to make fine adjustments until the power error is within the permissible range to ensure the accuracy of the test.

[0073] like Figure 3 As shown, it is a structural diagram of a temperature testing device for a protective material provided in an embodiment of the present application. The temperature testing device for a protective material provided in an embodiment of the present application includes: a data receiving module, a data processing module, a test module and a result evaluation module: data receiving module: used for the central processing unit to receive the temperature test signal, and record the designated protective material to be tested as the designated protective material, thereby statistically transmitting the basic information of the designated protective material to the data processor; data processing module: used for the data processor to receive the basic information of the designated protective material for processing, and obtain the temperature test execution parameters of the designated protective material; test module: used for performing temperature test on the designated protective material through the temperature control device based on the temperature test execution parameters of the designated protective material, and statistically obtaining the temperature test data of the designated protective material; result evaluation module: used for the data processor to process according to the temperature test data of the designated protective material, obtain the temperature test result of the designated protective material, and transmit it to the visual display interface connected to the temperature control device for display.

[0074] To sum up, this embodiment receives the temperature test signal through the central processing unit and records the designated protective material to be tested as the designated protective material, thereby counting the basic information of the designated protective material and transmitting it to the data processor, thereby realizing the effective utilization of temperature measurement resources and effectively solving the problem of low utilization of temperature measurement resources in the prior art.

[0075] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0076] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0077] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0078] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0079] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0080] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A temperature testing method for protective materials, characterized in that: The following steps are involved: The central processing unit receives the temperature test signal and records the designated protective material to be tested as the designated protective material, thereby statistically analyzing the basic information of the designated protective material and transmitting it to the data processor; The data processor receives and processes the basic information of the designated protective material to obtain the temperature test execution parameters of the designated protective material; Based on the temperature test execution parameters of the specified protective material, the temperature test is performed on the specified protective material through the temperature control device, and the temperature test data of the specified protective material is statistically obtained; The data processor processes the temperature test data of the specified protective material to obtain the temperature test result of the specified protective material, and transmits the result to the visual display interface connected to the temperature control device for display; The basic information of the specified protective material includes: the type, size parameters, density, average thickness and thermal expansion coefficient of the specified protective material; The obtaining of the temperature test execution parameters of the specified protective material specifically includes: based on the basic information indicators of the specified protective material and based on the constant temperature test times corresponding to each basic information indicator interval stored in the database, obtaining the constant temperature test times corresponding to the basic information indicators of the specified protective material, and marking them as the temperature test execution parameters of the specified protective material; The temperature test execution parameters of the specified protective material are used to perform a temperature test on the specified protective material through a temperature control device, and the temperature test data of the specified protective material is obtained by statistics, specifically including: Extracting the standard temperature measurement range of the specified protective material from the database, and based on the number of constant temperature tests of the specified protective material, randomly extracting a number of constant temperature test temperatures that are consistent with the number of constant temperature tests from the standard temperature measurement range, and recording them as the constant temperature test temperatures of each time; Perform temperature tests on designated protective materials through temperature control devices, and obtain statistical temperature test data of designated protective materials; The temperature test data of the specified protective material includes a body surface scan image of the specified protective material at each constant temperature test temperature; The specific steps of the data processor processing the temperature test data of the specified protective material are as follows: Based on the body surface scan images of the specified protective material at each constant temperature test temperature, and comparing them one by one with the initial scan images of the specified protective material before the constant temperature test, a body surface difference set of the specified protective material at each constant temperature test temperature is obtained; The body surface difference set includes the transverse deformation amount, the longitudinal deformation amount, the color difference value of each sampling point, the fiber curling degree, the number of surface micro cracks, and the total length of the surface micro cracks; The specific steps of obtaining the temperature test result of the specified protective material are: According to the surface difference set of the specified protective material at each constant temperature test temperature, a temperature test evaluation value of the specified protective material is evaluated, and the temperature test evaluation value of the specified protective material is used to characterize the performance of the specified protective material under the constant temperature test condition; Obtaining a temperature test evaluation threshold value of a specified protective material from a database; The temperature test evaluation value of the specified protective material is compared with the temperature test evaluation threshold of the specified protective material. If the temperature test evaluation value of the specified protective material is less than the temperature test evaluation threshold of the specified protective material, the temperature test result of the specified protective material is defined as a qualified product. If the temperature test evaluation value of the specified protective material is above the temperature test evaluation threshold of the specified protective material, the temperature test result of the specified protective material is defined as a defective product.

2. A temperature testing method for a protective material as claimed in claim 1, characterized in that: The specific steps of the data processor receiving the basic information of the designated protective material for processing are: According to the type of the designated protective material, the comparison data of designated protective materials of each type of samples stored in the database are matched, the comparison data of the designated protective materials of the samples consistent with the type of the designated protective material are obtained, and marked as the comparison data of the designated protective material; The comparison data of the specified protective material includes: comparison size parameters, comparison density and comparison thermal expansion coefficient; Based on the basic information of the designated protective material and the comparison data of the designated protective material, the basic information index of the designated protective material is obtained by processing; The basic information index of the specified protective material is used to quantify the basic information of the specified protective material and to characterize the difficulty of temperature testing of the specified protective material.

3. A temperature testing method for a protective material as claimed in claim 1, characterized in that: The calculation formula for the temperature test evaluation value of the specified protective material is: ； In the formula, Indicates the temperature test evaluation value of the specified protective material. represents the first temperature test evaluation value, represents the second temperature test evaluation value, represents the correction factor evaluated by the first temperature test, Indicates the second temperature test evaluation correction factor.

4. A temperature testing method for a protective material as claimed in claim 1, characterized in that: Also includes: Monitor and calibrate the operation of temperature control devices in real time; Obtain each constant temperature test temperature, and match it with the adaptive operating power of the temperature control device corresponding to various test temperatures defined in the database to obtain the adaptive operating power of the temperature control device corresponding to each constant temperature test temperature; Monitor the real-time operating power of the temperature control device at each constant temperature test temperature, and obtain the real-time operating power of the temperature control device at each constant temperature test temperature; The real-time operating power of the temperature control device at each constant temperature test temperature is compared with the adapted operating power of the temperature control device at each corresponding constant temperature test temperature. If the difference between the real-time operating power of the temperature control device at each constant temperature test temperature and the corresponding adapted operating power exceeds the preset power allowable deviation value, the real-time operating power control of the temperature control device at the constant temperature test temperature is adjusted to the corresponding adapted operating power.

5. A device using the temperature testing method of the protective material according to any one of claims 1 to 4, characterized in that: It includes data receiving module, data processing module, testing module and result evaluation module: Data receiving module: used for the central processor to receive the temperature test signal, and record the designated protective material to be tested as the designated protective material, thereby statistically analyzing the basic information of the designated protective material and transmitting it to the data processor; Data processing module: used for the data processor to receive basic information of the specified protective material for processing and obtain the temperature test execution parameters of the specified protective material; Test module: used to perform temperature test on the specified protective material through the temperature control device based on the temperature test execution parameters of the specified protective material, and obtain the temperature test data of the specified protective material by statistics; Result evaluation module: used for the data processor to process the temperature test data of the specified protective material, obtain the temperature test result of the specified protective material, and transmit it to the visual display interface connected to the temperature control device for display.

Images