Test method for rubber materials and related equipment

Abstract

The application discloses a kind of test methods and related equipment of rubber material, related to rubber resistance test, mainly to solve the problem of lack of a more accurate evaluation method for the environmental performance of the rubber material used for automobile sealing at present.The method comprises: immersing the rubber material in ethylene glycol coolant;Based on the preset environmental data, adjust the environment box where the rubber material is located;Real-time record the hardness value and permanent deformation of the rubber material in ethylene glycol coolant with the change of preset environmental data.The application is used in the test process of rubber material.

Description

Technical Field

[0001] This invention relates to rubber endurance testing, and more particularly to a testing method and related equipment for rubber materials. Background Technology

[0002] Automotive rubber seals are an important component of automotive rubber parts and are key parts that affect the technology and performance of automobiles. In actual use, heat, oxygen and ozone in the air, sunlight, wind, rain, snow, moisture, as well as various mechanical stresses or chemical solvents during use, damage the chemical structure of the rubber, causing it to soften or harden and crack, become rough, and have reduced mechanical properties, gradually losing its usability over time.

[0003] However, there is currently a lack of a more accurate testing method for the environmental resistance of rubber materials used in automotive sealing. Summary of the Invention

[0004] In view of the above problems, the present invention provides a testing method and related equipment for rubber materials, the main purpose of which is to solve the problem that there is currently no more accurate evaluation method for the environmental resistance of rubber materials used in automotive sealing.

[0005] To solve at least one of the above-mentioned technical problems, in a first aspect, the present invention provides a testing method for rubber materials, the method comprising:

[0006] Immerse the rubber material in ethylene glycol coolant;

[0007] The environmental chamber in which the rubber material is located is adjusted based on preset environmental data;

[0008] The hardness value and permanent deformation of the rubber material in ethylene glycol coolant are recorded in real time as they change with preset environmental data.

[0009] Optionally, the real-time recording of the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as a function of preset environmental data includes:

[0010] In the first test chamber, the hardness value of the rubber material in ethylene glycol coolant was recorded in real time based on the hardness indenter and the changes in preset environmental data.

[0011] at the same time,

[0012] In the second test chamber, the deformation of the rubber material in ethylene glycol coolant was recorded in real time based on the pressure plate, according to preset environmental data.

[0013] Optionally, in the second test chamber, the deformation of the rubber material in the ethylene glycol coolant, as a function of preset environmental data, is recorded in real time based on a pressure plate, including:

[0014] Obtain the initial volume data of the rubber material;

[0015] Record the second volume data of the rubber material after it has been compressed to a preset thickness in ethylene glycol coolant and under preset conditions and then depressurized;

[0016] The deformation is determined based on the initial volume data and the second volume data.

[0017] Optionally, the above methods also include:

[0018] Obtain the initial load of the rubber material, wherein the initial load is the load of the rubber material when it is compressed to a preset thickness in its original state;

[0019] Data on the load change of the rubber material when it is compressed to a preset thickness in ethylene glycol coolant and under preset conditions are obtained.

[0020] Optionally, adjusting the environmental chamber where the rubber material is located based on preset environmental data includes:

[0021] The preset environmental data is determined based on a preset cycle to adjust the environmental chamber in which the rubber material is located.

[0022] Optionally, the preset loop includes:

[0023] The first stage involves a temperature range of -40℃ to 80℃ for 30 minutes.

[0024] The second stage involves a temperature of 80℃ and a time of 60 minutes.

[0025] The third stage involves maintaining a temperature of 80℃ to 125℃ for 15 minutes.

[0026] The fourth stage, with a temperature of 125℃ and a time of 120 minutes,

[0027] The fifth stage involves adjusting the temperature from 125℃ to 25℃ for 35 minutes.

[0028] The sixth stage involves a temperature range of 25°C to -40°C for 30 minutes.

[0029] The seventh stage involves a temperature of -40°C for 120 minutes.

[0030] Optionally, the above methods also include:

[0031] Before the test, press the hardness indenter into contact with the bottom support plate until the hardness value is 100I RHD.

[0032] Secondly, embodiments of the present invention also provide a testing apparatus for rubber materials, comprising:

[0033] A control unit for immersing the rubber material in ethylene glycol coolant;

[0034] An adjustment unit is used to adjust the environmental chamber in which the rubber material is located based on preset environmental data;

[0035] The recording unit is used to record in real time the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as the temperature changes with preset environmental data.

[0036] To achieve the above objectives, according to a third aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium comprising a stored program, wherein, when the program is executed by a processor, the steps of the above-described method for testing rubber materials are implemented.

[0037] To achieve the above objectives, according to a fourth aspect of the present invention, an electronic device is provided, comprising at least one processor and at least one memory connected to the processor; wherein the processor is configured to invoke program instructions in the memory to execute the steps of the above-described method for testing rubber materials.

[0038] By employing the above technical solution, the testing method and related equipment for rubber materials provided by this invention address the current lack of a more accurate evaluation method for the environmental resistance of automotive sealing rubber materials. This invention involves immersing the rubber material in ethylene glycol coolant; adjusting the environmental chamber based on preset environmental data; and recording in real-time the hardness and permanent deformation of the rubber material in the ethylene glycol coolant as the preset environmental data change. In this solution, the actual automotive usage environment is simulated through a combination of high temperature, low temperature, and chemical media influencing factors to find the optimal combination. During environmental changes, a certain load is applied to the sample, and coolant can be added. As the ambient temperature changes, the sample deformation and hardness are recorded in real-time, thereby simulating the changing trend of the sealing performance of the coolant pipe rubber material under real automotive usage conditions. Simultaneously, during and after environmental changes, automatic measurement is used to monitor and measure the sample deformation and hardness in real time.

[0039] Correspondingly, the testing apparatus, equipment, and computer-readable storage medium for rubber materials provided in the embodiments of the present invention also have the above-mentioned technical effects.

[0040] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0041] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0042] Figure 1 A schematic flowchart of a testing method for rubber materials provided by an embodiment of the present invention is shown;

[0043] Figure 2 This diagram illustrates a simplified structural diagram of a test chamber for a rubber material according to an embodiment of the present invention.

[0044] Figure 3 The diagram shows a Shore hardness recording of one embodiment and a comparative example provided by this invention.

[0045] Figure 4 This diagram illustrates the composition of a testing apparatus for rubber materials according to an embodiment of the present invention.

[0046] Figure 5 A schematic block diagram of the composition of a testing electronic device for rubber materials provided in an embodiment of the present invention is shown. Detailed Implementation

[0047] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0048] To address the current lack of a more precise testing method for the environmental resistance of automotive sealing rubber materials, this invention provides a testing method for rubber materials, such as... Figure 1 As shown, the method includes:

[0049] S101. Immerse the rubber material in ethylene glycol coolant;

[0050] For example, ethylene glycol coolant, used as an automotive antifreeze, significantly lowers the freezing point of water, preventing the cooling system from freezing in low-temperature environments and thus protecting the engine and other cooling system components from damage. However, during engine operation, the coolant, as a cooling medium, requires rubber-made cooling water pipes for storage and circulation, which can lead to contact between the ethylene glycol coolant and the rubber material. Therefore, one of the conditions for this experiment is to immerse the rubber material in ethylene glycol coolant.

[0051] like Figure 2 As shown, this application also provides a testing chamber for rubber materials:

[0052] The above-mentioned test chamber consists of two layers, with a temperature adjustment range of -40℃ to 180℃ and a relative humidity adjustment range of 10%RH to 98%RH.

[0053] Specifically, a Shore A hardness indenter can be installed on the top of the upper chamber for measuring hardness values; the metal screw has a diameter of 2cm. A 1cm thick metal plate, 10cm long and wide, can hold the rubber sample at the bottom. A metal container, designated Container 1, is designed on the bottom metal plate; its length, width, and height are 8cm, and it is 5cm high. The Shore A hardness indenter can pass through the center of the top cover plate, while the rest of the container is sealed. The relative movement of the hardness indenter to the sample is controlled by the environmental chamber's microcomputer, allowing for the application of a constant load, and the measured hardness value is displayed digitally on the screen in real time.

[0054] The lower chamber consists of a circular stainless steel plate used to measure compression permanent deformation. The metal screw has a diameter of 2cm. The metal plate is 1cm thick and 10cm long and wide. The upper end is fixed, while the lower end is controlled by the environmental chamber's computer and can move up and down. The distance between the two circular plates can be precisely adjusted from 4 to 12mm. A metal container (Container 2) is designed on the bottom metal plate, measuring 15cm in length, width, and height. The upper cover consists of two parts; after the upper plate contacts the rubber sample, the two parts connect to form a single unit. The metal screw can pass through the center, while the other parts are sealed.

[0055] The test chamber based on the above-mentioned rubber material can realize an environmental chamber with adjustable temperature. A certain load can be applied to the sample inside the chamber, and coolant can be added. As the ambient temperature changes, the deformation and hardness of the sample are recorded in real time, thereby simulating the changing trend of the sealing performance of the rubber material of the cooling water pipe under the actual use conditions of automobiles.

[0056] S102. Adjust the environmental chamber in which the rubber material is located based on preset environmental data;

[0057] The above-mentioned step S102 further includes S1021: determining the preset environmental data based on a preset cycle to adjust the environmental chamber in which the rubber material is located.

[0058] For example, in the industry, weather resistance and reliability tests for rubber materials and products mainly include hot air aging, ultraviolet aging, xenon lamp aging, and coolant resistance, all of which involve single environmental conditions or media. However, in actual vehicle use, the external environment and the temperature field inside the engine compartment change in real time. The most common scenario is that the temperature inside the engine compartment rises during driving and decreases from high temperature to ambient temperature when parked. Therefore, this application designs a high and low temperature alternating environment to simulate actual user driving scenarios.

[0059] Based on the above scheme, by combining the influencing factors of high temperature, low temperature and chemical media, the actual use environment of automobiles is simulated, and a better combination is found.

[0060] In one embodiment, the preset cycle includes:

[0061] The first stage involves a temperature range of -40℃ to 80℃ for 30 minutes.

[0062] The second stage involves a temperature of 80℃ and a time of 60 minutes.

[0063] The third stage involves maintaining a temperature of 80℃ to 125℃ for 15 minutes.

[0064] The fourth stage, with a temperature of 125℃ and a time of 120 minutes,

[0065] The fifth stage involves adjusting the temperature from 125℃ to 25℃ for 35 minutes.

[0066] The sixth stage involves a temperature range of 25°C to -40°C for 30 minutes.

[0067] The seventh stage involves a temperature of -40°C for 120 minutes.

[0068] The aforementioned preset cycle simulates the specific scenario of vehicle operation in extremely cold regions. Specifically, after the vehicle has been parked overnight, it is started, and as the engine begins to operate, its temperature gradually rises. As the vehicle moves, the temperature rises further. After a period of driving, the vehicle is turned off, the engine stops operating, and its temperature gradually decreases. By simulating this condition, the environmental changes of the coolant and cooling water hoses during engine start-up, operation, and shutdown can be more realistically reflected. Based on this scheme, by utilizing alternating high and low temperature conditions and immersing the sample in coolant to simulate the actual operating environment of automotive cooling hoses, the reliability of the test results and the detection rate of leakage problems are optimized.

[0069] S103. Record in real time the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as the temperature changes with preset environmental data.

[0070] For example, the above data recording employs an automated measurement method to monitor and measure the sample deformation and hardness in real time. Furthermore, the use of a microcomputer-controlled automated measurement method reduces errors from manual measurements and improves the accuracy of the measurement results.

[0071] The steps in S103 above also include S1031, S1032, S1033 and S1034:

[0072] S1031. Before the test, press down the hardness indenter to contact the bottom support plate until the hardness value is 100I RHD.

[0073] Based on the above scheme, the hardness tester is calibrated and zeroed before installing the sample. The hardness tester indenter is moved downwards under computer control until it contacts the bottom metal plate, until the displayed hardness value is 100I RHD.

[0074] S1032. Obtain the initial load of the rubber material, wherein the initial load is the load of the rubber material when it is compressed to a preset thickness in its original state; obtain the load change data of the rubber material when it is compressed to a preset thickness in ethylene glycol coolant and under a preset environment.

[0075] First, install the rubber sample block for measuring hardness in the upper housing, control the hardness tester indenter to move downward, measure the initial hardness of the rubber sample block, and record the load applied to the indenter during the test, using this load as the initial load.

[0076] Furthermore, ethylene glycol coolant was injected into container one of the upper chambers to immerse the rubber sample. The test chamber was then cyclically run according to the aforementioned preset procedure, maintaining a constant load throughout the operation and recording the sample hardness measurements in real time. This constant load measurement and real-time monitoring ensured the consistency of the measurement results. Measuring the changes in sample hardness throughout the entire test process helps predict changes in material properties and failure trends.

[0077] Specifically, the diameter of the rubber sample block can range from 12.5 mm to 29.5 mm, and the thickness of the rubber sample block can be at least 6 mm to 13 mm.

[0078] S1033, The real-time recording of the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as a function of preset environmental data includes:

[0079] In the first test chamber, the hardness value of the rubber material in ethylene glycol coolant was recorded in real time based on the hardness indenter and the changes in preset environmental data.

[0080] at the same time,

[0081] In the second test chamber, the deformation of the rubber material in ethylene glycol coolant was recorded in real time based on the pressure plate, according to preset environmental data.

[0082] For example, this application considers that thermochemical reactions occur at high temperatures, leading to changes in the internal structure of rubber and permanent deformation. Under low-temperature compression, rubber primarily undergoes physical relaxation; molecular chain segments align, orient, and easily crystallize under external force, and these crystalline segments do not easily return to their original state after the external force is released. Therefore, the deformation and hardness changes of the material should be a dynamic process. Thus, this application records the dynamic changes in hardness and deformation in real time as the experiment progresses. This reduces the discrepancies and limitations between the performance changes of automotive sealing rubber materials and actual environmental conditions, and improves the accuracy of judging the performance of rubber materials.

[0083] Specifically, the sample is fixed on the lower platen of the lower chamber, and the initial position of the upper platen is recorded. The upper platen is then moved downwards under computer control, and the load and displacement distance after the sample is compressed to the specified thickness are recorded. This load is used as the initial load. Ethylene glycol coolant is injected into container two of the lower chamber to immerse the rubber sample. The test chamber is then run according to the specified temperature and time.

[0084] It is important to note that the hardness value and deformation tests are conducted simultaneously.

[0085] By ensuring the environment remained unchanged throughout the entire test, the reliability of the results was guaranteed. The use of automated measurement methods reduced errors in the test results. Measuring the changes in sample hardness throughout the test helps predict changes in material properties and failure trends.

[0086] S1034. The deformation of the rubber material in the ethylene glycol coolant in the second test chamber, based on the pressure plate, is recorded in real time as the environmental data changes, including:

[0087] Obtain the initial volume data of the rubber material;

[0088] Record the second volume data of the rubber material after it has been compressed to a preset thickness in ethylene glycol coolant and under preset conditions and then depressurized;

[0089] The deformation is determined based on the initial volume data and the second volume data.

[0090] For example, during the test, the distance between the two plates is kept constant, and the load change during environmental changes is measured in real time and displayed on the screen. After the cycle ends, the upper plate is moved upward, and after 30 minutes, it is moved downward again until it contacts the sample. The displacement distance at this time is recorded to calculate the thickness of the sample, i.e., the second volume data. The compressive permanent deformation of the sample is calculated by comparing the initial volume data and the second volume data.

[0091] By employing the above technical solution, the testing method for rubber materials provided by this invention addresses the current lack of a more accurate evaluation method for the environmental resistance of automotive sealing rubber materials. This invention involves immersing the rubber material in ethylene glycol coolant; adjusting the environmental chamber based on preset environmental data; and recording in real-time the hardness and permanent deformation of the rubber material in the ethylene glycol coolant as the preset environmental data change. In this solution, the actual automotive usage environment is simulated through a combination of high temperature, low temperature, and chemical media influencing factors to find the optimal combination. During environmental changes, a certain load is applied to the sample, and coolant can be added. As the ambient temperature changes, the sample deformation and hardness are recorded in real-time, thereby simulating the changing trend of the sealing performance of the coolant pipe rubber material under real automotive usage conditions. Simultaneously, during and after environmental changes, automatic measurement is used to monitor and measure the sample deformation and hardness in real time.

[0092] like Figure 3 As shown below, several specific embodiments provided in this application are illustrated:

[0093] Example 1: An EPDM rubber material sample with an initial hardness of 70HA and a thickness of 12.5mm was selected. Using the equipment and testing methods and environmental conditions of the present invention, the compression set, hardness and intermediate process data of the rubber material were measured and recorded in real time.

[0094] Example 2: An EPDM rubber material sample with an initial hardness of 85HA and a thickness of 6.3mm was selected. Using the equipment, testing methods, and environmental conditions of the present invention, the compression set, hardness, and intermediate process data of the rubber material were measured and recorded in real time.

[0095] Comparative Example 1: According to GB / T 7759.1-2015 Determination of Compression Permanence of Vulcanized Rubber or Thermoplastic Rubber Part 1: Under normal temperature and high temperature conditions, the compression permanent deformation of rubber in a high temperature hot air environment is measured only. An EPDM rubber material sample with an initial hardness of 70HA and a thickness of 12.5mm was selected. The sample was fixed with the limiter and limit block in the test standard and kept in an environment of 125℃ for 24 hours. The compression permanent deformation of the rubber material was measured.

[0096] Comparative Example 2: According to GB / T 7759.2-2014 Determination of Compression Permanence of Vulcanized Rubber or Thermoplastic Rubber Part 2: Under Low Temperature Conditions (this condition only measures the compression permanent deformation of rubber in low temperature environments), an EPDM rubber material sample with an initial hardness of 70HA and a thickness of 12.5mm was selected. The sample was fixed with the limiter and limit block in this test standard and kept in an environment of -40℃ for 24 hours. The compression permanent deformation of the rubber material was then measured.

[0097] The following table shows the parameter measurement results for the above embodiments and comparative examples:

[0098] Table 1 Parameter Measurement Table

[0099]

[0100] Furthermore, as a response to the above Figure 1 In addition to the method shown, this embodiment of the invention also provides a testing apparatus for rubber materials, used for testing the aforementioned... Figure 1 The method shown is implemented accordingly. This device embodiment corresponds to the foregoing method embodiment. For ease of reading, this device embodiment will not repeat the details of the foregoing method embodiment, but it should be clear that the device in this embodiment can implement all the contents of the foregoing method embodiment. Figure 4 As shown, the device includes: a control unit 21, an adjustment unit 22, and a recording unit 23, wherein...

[0101] Control unit 21 is used to immerse the rubber material in ethylene glycol coolant;

[0102] Adjustment unit 22 is used to adjust the environmental chamber in which the rubber material is located based on preset environmental data;

[0103] The recording unit 23 is used to record in real time the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as the temperature changes with preset environmental data.

[0104] The processor contains a kernel, which retrieves the corresponding program unit from memory. One or more kernels can be configured, and by adjusting kernel parameters, a testing method for rubber materials can be implemented. This addresses the current lack of a more accurate evaluation method for the environmental resistance of automotive sealing rubber materials.

[0105] This invention provides a computer-readable storage medium including a stored program that, when executed by a processor, implements a testing method for the rubber material.

[0106] This invention provides a processor for running a program, wherein the program executes a test method for the rubber material.

[0107] This invention provides an electronic device, which includes at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the rubber material testing method described above.

[0108] This invention provides an electronic device 30, such as... Figure 5 As shown, the electronic device includes at least one processor 301, and at least one memory 302 and bus 303 connected to the processor; wherein, the processor 301 and the memory 302 communicate with each other through the bus 303; the processor 301 is used to call program instructions in the memory to execute the above-mentioned test method for rubber materials.

[0109] The smart electronic devices mentioned in this article can be PCs, tablets, mobile phones, etc.

[0110] This application also provides a computer program product that, when executed on a process management electronic device, is suitable for executing a program that initializes the test method steps for the aforementioned rubber material.

[0111] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0112] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied 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.

[0113] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0114] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0115] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0116] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to perform actions such as... Figure 1 The control flow of the memory in the corresponding embodiment.

[0117] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0118] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0119] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0120] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0121] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0122] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0123] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A test method for rubber materials, characterized in that, include: Immerse the rubber material in ethylene glycol coolant; The environmental chamber in which the rubber material is located is adjusted based on preset environmental data; The hardness value and permanent deformation of the rubber material in ethylene glycol coolant are recorded in real time as the environmental data changes. The real-time recording of the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as a function of preset environmental data includes: In the first test chamber, the hardness value of the rubber material in ethylene glycol coolant was recorded in real time based on the hardness indenter and the changes in preset environmental data. at the same time, In the second test chamber, the deformation of the rubber material in ethylene glycol coolant was recorded in real time based on the pressure plate, according to preset environmental data. The method of adjusting the environmental chamber in which the rubber material is located based on preset environmental data includes: The preset environmental data is determined based on a preset cycle in order to adjust the environmental chamber in which the rubber material is located. In the second test chamber, the deformation of the rubber material in ethylene glycol coolant is recorded in real time based on the pressure plate, according to preset environmental data, including: Obtain the initial volume data of the rubber material; Record the second volume data of the rubber material after it has been compressed to a preset thickness in ethylene glycol coolant and under preset conditions and then depressurized; The deformation is determined based on the initial volume data and the second volume data; Obtain the initial load of the rubber material, wherein the initial load is the load of the rubber material when it is compressed to a preset thickness in its original state; Obtain load change data of the rubber material when it is compressed to a preset thickness in ethylene glycol coolant and under preset conditions; Before the test, press the hardness indenter into contact with the bottom support plate until the hardness value is 100IRHD.

2. The method according to claim 1, characterized in that, The preset cycle includes: The first stage involves a temperature range of -40℃ to 80℃ for 30 minutes. The second stage involves a temperature of 80℃ and a time of 60 minutes. The third stage involves a temperature range of 80℃ to 125℃ for 15 minutes. The fourth stage, with a temperature of 125℃ and a time of 120 minutes, The fifth stage involves a temperature range of 125°C to 25°C for 35 minutes. The sixth stage involves a temperature range of 25°C to -40°C for 30 minutes. The seventh stage involves a temperature of -40°C for 120 minutes.

3. A testing apparatus for rubber materials, characterized in that, Also includes: A control unit for immersing the rubber material in ethylene glycol coolant; An adjustment unit is used to adjust the environmental chamber in which the rubber material is located based on preset environmental data; A recording unit is used to record in real time the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as the temperature changes with preset environmental data. The real-time recording of the hardness value and permanent deformation of the rubber material in ethylene glycol coolant as a function of preset environmental data includes: In the first test chamber, the hardness value of the rubber material in ethylene glycol coolant was recorded in real time based on the hardness indenter and the changes in preset environmental data. at the same time, In the second test chamber, the deformation of the rubber material in ethylene glycol coolant was recorded in real time based on the pressure plate, according to preset environmental data. The method of adjusting the environmental chamber in which the rubber material is located based on preset environmental data includes: The preset environmental data is determined based on a preset cycle in order to adjust the environmental chamber in which the rubber material is located. In the second test chamber, the deformation of the rubber material in ethylene glycol coolant is recorded in real time based on the pressure plate, according to preset environmental data, including: Obtain the initial volume data of the rubber material; Record the second volume data of the rubber material after it has been compressed to a preset thickness in ethylene glycol coolant and under preset conditions and then depressurized; The deformation is determined based on the initial volume data and the second volume data; Obtain the initial load of the rubber material, wherein the initial load is the load of the rubber material when it is compressed to a preset thickness in its original state; Obtain load change data of the rubber material when it is compressed to a preset thickness in ethylene glycol coolant and under preset conditions; Before the test, press the hardness indenter into contact with the bottom support plate until the hardness value is 100IRHD.

4. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed by a processor, it implements the steps of the testing method for the rubber material as described in any one of claims 1-2.

5. An electronic device, characterized in that, The electronic device includes at least one processor and at least one memory connected to the processor; wherein the processor is configured to invoke program instructions in the memory to execute the steps of the testing method for rubber materials as described in any one of claims 1-2.

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