Method and system for monitoring wear resistance of glass fiber by using industrial starch

Abstract

The invention discloses a method and a system for monitoring wear resistance of glass fibers by using industrial starch, and relates to the technical field of monitoring of wear resistance of glass fibers. The method for monitoring the wear resistance of the glass fiber by using the industrial starch comprises the following steps: acquiring a stability evaluation index; obtaining a wear resistance interference score; and wear resistance evaluation indexes are obtained. According to the invention, the to-be-tested glass fiber sample on the fixing clamp is pre-tested to obtain the stability evaluation index and judge whether the wear resistance test is executed, and then whether the wear resistance test is completed is judged based on the obtained wear resistance interference score. Finally, whether the corresponding glass fiber sample to be tested is qualified or not is judged based on the obtained wear resistance evaluation index, the effect of improving the wear resistance monitoring reliability of the glass fiber is achieved, and the problem that in the prior art, the wear resistance evaluation reliability of the glass fiber is not high in the wear resistance testing process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber wear resistance monitoring, and in particular to a glass fiber wear resistance monitoring method and system using industrial starch. Background Art

[0002] With the continuous advancement of industrial technology and the continuous expansion of glass fiber application areas, the monitoring of glass fiber wear resistance has become increasingly important. Glass fiber is a slender fiber made of glass as raw material. Due to its excellent performance, it is widely used in reinforced plastics, thermal insulation materials, filter materials, optical fibers and other fields. In the production process of glass fiber, industrial starch is often used as a wetting agent to improve the textile processing performance and wear resistance of glass fiber. Starch-based wetting agents can form a high-strength, soft, and wear-resistant film on the surface of glass fiber, thereby improving the tensile and breaking strength of glass fiber and preventing the migration of the wetting agent. However, different types and formulations of starch have different effects on the wear resistance of glass fiber. Therefore, it is necessary to monitor the wear resistance of glass fiber using industrial starch to ensure that its quality meets the application requirements.

[0003] In the prior art, the glass fiber is fixed in a fixture on a fixed bracket and mounted on a disc made of the test material that rotates at a certain speed. The time from the beginning of wear to the breakage of the glass fiber with a certain weight suspended on it is monitored in real time, thereby evaluating the wear resistance of the glass fiber.

[0004] For example, the invention patent with announcement number: CN118329672B discloses a glass surface coating wear resistance testing device and its use method, including: mechanically cutting the explosion-proof glass to be tested into a disc shape; physical friction test and chemical dynamic erosion corrosion and wear test; and detecting the local glass surface separated by the dividing groove through the detection device.

[0005] For example, the invention patent with announcement number: CN113933199B announces an electronic-grade glass fiber wear resistance testing device and test method, which includes: sampling the yarn and passing the sampled yarn through a limiting yarn guide rod, a yarn guide rod, a grinding roller, and a limiting groove, and fixing one end of the yarn on the working position; connecting the other end of the yarn to a tension control device, and then cutting the yarn, and applying tension after all the yarns to be tested are passed into the working position; recording the tension changes during the friction process of the yarn through a tensioner, and comparing the wear resistance of the yarn according to the tension time curve; recording the yarn state during the friction process through a camera and counting the length and number of hairiness in the picture, weightedly calculating the average hairiness length, and comparing the wear resistance of the yarn according to the average hairiness length-time curve.

[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: In the prior art, since the influence of the relative friction between the fixture and the glass fiber during the test is not fully considered, thereby affecting the accuracy of the test results, there is a problem that the reliability of the wear resistance evaluation of the glass fiber during the wear resistance test is not high. Summary of the invention

[0007] The embodiments of the present application provide a method and system for monitoring the wear resistance of glass fibers using industrial starch, thereby solving the problem of low reliability in evaluating the wear resistance of glass fibers during wear resistance testing in the prior art, and improving the reliability of monitoring the wear resistance of glass fibers.

[0008] The embodiment of the present application provides a method for monitoring the wear resistance of glass fiber using industrial starch, comprising the following steps: step 1, pre-testing a glass fiber sample to be tested on a fixed fixture to obtain a stability evaluation index, and judging whether to perform a wear resistance test based on the obtained stability evaluation index, wherein the stability evaluation index is used to evaluate the stability of the glass fiber sample to be tested in withstanding friction; step 2, if a wear resistance test is performed, real-time monitoring of the test data of the glass fiber sample to be tested during the wear resistance test to obtain a wear resistance interference score, and judging whether the wear resistance test is completed based on the obtained wear resistance interference score, wherein the wear resistance interference score is used to quantify the degree of influence on the wear resistance of the glass fiber sample to be tested during the wear resistance test; step 3, if the wear resistance test is completed, obtaining a wear area and monitoring the wear resistance data of the glass fiber sample to be tested in the wear area to obtain a wear resistance evaluation index, and judging whether the corresponding glass fiber sample to be tested is qualified based on the obtained wear resistance evaluation index, wherein the wear resistance evaluation index is used to evaluate the wear resistance of the glass fiber sample to be tested during the wear resistance test.

[0009] Furthermore, the stability evaluation index is obtained by the following method: A1, judging whether the degree of dryness of the glass fiber sample to be tested before the pre-test is within the allowable range of dryness, if so, pre-testing and executing A2, otherwise prompting the preset personnel to continue drying the glass fiber sample to be tested; A2, pre-testing the glass fiber sample to be tested under preset relative humidity conditions, and real-time monitoring the pre-test data of the glass fiber sample to be tested within a preset time period during the pre-test process to obtain the tensile strength score and the bending strength score; A3, obtaining a preset temperature influencing factor from a preset database, and at the same time counting the duration of the pre-test of the glass fiber sample to be tested, and judging whether the duration of the pre-test is not greater than a preset The pre-test duration is, if yes, execute A4, otherwise prompt the preset personnel to re-select the glass fiber sample to be tested and re-perform the pre-test; A4, obtain the pre-test duration proportion score and combine the obtained tensile strength score, bending strength score and temperature influence factor to obtain the stability evaluation index; the tensile strength score is the ratio of the average tensile strength to the reference average tensile strength; the bending strength score is the ratio of the average bending strength to the reference average bending strength; the temperature influence factor is used to reflect the influence of the temperature generated during the operation of the wear-resistant testing machine on the friction between the glass fiber sample to be tested and the fixing fixture; the pre-test duration proportion score is the ratio of the pre-test duration to the total duration of the preset time period.

[0010] Furthermore, the wear resistance interference score is obtained by the following method: determine whether the glass fiber sample to be tested is broken during the wear resistance test, if so, continue to perform wear resistance test on the remaining glass fiber samples to be tested, otherwise obtain the relative friction factor; monitor the friction rate and wear amount of the glass fiber sample to be tested during the wear resistance test in real time, and determine whether the acquired friction rate is within the maximum allowable friction rate range, if so, obtain the friction rate score and the wear amount score and process them separately and combine them with the acquired relative friction factor to obtain the wear resistance interference score, otherwise stop the wear resistance test and adjust the friction speed parameters of the wear resistance testing machine, and continue to perform the wear resistance test according to the adjusted friction speed parameters; the relative friction factor is the ratio of the positive pressure borne by the friction force between the glass fiber sample to be tested and the friction material of the wear resistance testing machine during the wear resistance test.

[0011] Furthermore, the steps for obtaining the wear resistance performance evaluation index are as follows: obtain the wear resistance time score, the average wear resistance load score and the total wear amount score, and combine the obtained stability evaluation index and the wear resistance performance interference score to obtain the wear resistance performance evaluation index; the wear resistance time score is the ratio of the wear resistance time to the reference wear resistance time; the average wear resistance load score is the ratio of the average wear resistance load to the reference average wear resistance load; the total wear amount score is the ratio of the total wear amount to the reference total wear amount.

[0012] Furthermore, the specific limiting expression of the wear resistance evaluation index is: ; In the formula, e is a natural constant, Indicates the wear resistance evaluation index corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the wear resistance time score of the glass fiber sample to be tested that has completed the wear resistance test. Indicates the average wear load score corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the total wear fraction of the glass fiber sample to be tested that has completed the wear resistance test. It indicates the stability evaluation index of the glass fiber sample to be tested during the pre-test process within the preset time period. It indicates the wear resistance interference score of the glass fiber sample to be tested during the wear resistance test. Indicates the allowable range of interference with wear resistance.

[0013] The embodiment of the present application provides a glass fiber wear resistance monitoring system using industrial starch, including: a stability evaluation index acquisition module, a wear resistance interference score acquisition module and a wear resistance evaluation index acquisition module; wherein the stability evaluation index acquisition module is used to pre-test the glass fiber sample to be tested on the fixed fixture to obtain a stability evaluation index, and at the same time, judge whether to perform a wear resistance test based on the obtained stability evaluation index, and the stability evaluation index is used to evaluate the stability degree of the glass fiber sample to be tested in terms of friction; the wear resistance interference score acquisition module is used to monitor the glass fiber sample to be tested in real time during the wear resistance test if a wear resistance test is performed. The wear resistance performance interference score is obtained from the test data during the process, and whether the wear resistance test is completed is judged based on the obtained wear resistance performance interference score, and the wear resistance performance interference score is used to quantify the degree of influence on the wear resistance of the glass fiber sample to be tested during the wear resistance test; the wear resistance performance evaluation index acquisition module is used to obtain the wear area and monitor the wear resistance data of the glass fiber sample to be tested in the wear area to obtain the wear resistance evaluation index if the wear resistance test is completed, and whether the corresponding glass fiber sample to be tested is qualified based on the obtained wear resistance evaluation index, and the wear resistance evaluation index is used to evaluate the wear resistance of the glass fiber sample to be tested during the wear resistance test.

[0014] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. Pre-testing the glass fiber sample to be tested on the fixed fixture to obtain stability evaluation indicators and determine whether to perform the wear resistance test, then determining whether the wear resistance test is completed based on the obtained wear resistance interference score, and finally determining whether the corresponding glass fiber sample to be tested is qualified based on the obtained wear resistance evaluation indicators, thereby achieving improved accuracy and reliability of the wear resistance test, and further achieving improved reliability of glass fiber wear resistance monitoring, effectively solving the problem of low reliability of wear resistance evaluation of glass fiber during wear resistance testing in the prior art.

[0015] 2. When the obtained stability evaluation index is greater than the preset stability evaluation index, the friction rate score and the wear amount score within the maximum allowable friction rate range are obtained and processed respectively, and then the wear resistance interference score is obtained by combining the obtained phase friction factor, thereby improving the accuracy of obtaining the wear resistance interference score, and further achieving a more accurate evaluation of the wear resistance interference degree of the glass fiber sample to be tested.

[0016] 3. By obtaining the wear resistance time score, average wear resistance load score and total wear amount score within the allowable range of wear resistance interference, and combining the obtained stability evaluation index and wear resistance interference score, the wear resistance evaluation index is obtained, thereby improving the accuracy of obtaining the wear resistance evaluation index, and then achieving a more accurate evaluation of the wear resistance of the glass fiber sample to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A flow chart of a method for monitoring the wear resistance of glass fiber using industrial starch provided in an embodiment of the present application; Figure 2 A process flow chart of carrying out abrasion resistance test on a glass fiber sample to be tested provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a glass fiber wear resistance monitoring system using industrial starch provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] The embodiment of the present application solves the problem of low reliability of wear resistance evaluation of glass fibers during wear resistance testing in the prior art by providing a method and system for monitoring the wear resistance of glass fibers using industrial starch. The method pre-tests the glass fiber samples to be tested on a fixed fixture to obtain stability evaluation indicators, and determines whether to perform the wear resistance test based on the obtained stability evaluation indicators. If the wear resistance test is performed, the test data of the glass fiber samples to be tested during the wear resistance test is monitored in real time to obtain a wear resistance interference score, and determines whether the wear resistance test is completed based on the obtained wear resistance interference score. If the wear resistance test is completed, the wear area is obtained and the wear resistance data of the glass fiber samples to be tested in the wear area are monitored to obtain a wear resistance evaluation indicator, and determines whether the corresponding glass fiber samples to be tested are qualified based on the obtained wear resistance evaluation indicator, thereby improving the reliability of glass fiber wear resistance monitoring.

[0019] The technical solution in the embodiment of the present application is to solve the problem that the reliability of the wear resistance evaluation of the above-mentioned glass fiber is not high during the wear resistance test. The overall idea is as follows: By pre-testing the glass fiber samples to be tested on the fixed fixture to obtain stability evaluation indicators and determine whether to perform the wear resistance test, then judging whether the wear resistance test is completed based on the obtained wear resistance interference score, and finally judging whether the corresponding glass fiber samples to be tested are qualified based on the obtained wear resistance evaluation indicators, the reliability of glass fiber wear resistance monitoring is improved.

[0020] 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.

[0021] like Figure 1As shown, it is a flow chart of a method for monitoring the wear resistance of glass fiber using industrial starch provided in an embodiment of the present application. A method for monitoring the wear resistance of glass fiber using industrial starch provided in an embodiment of the present application comprises the following steps: Step 1, pre-testing the glass fiber sample to be tested on the fixing fixture to obtain a stability evaluation index, and judging whether to perform the wear resistance test based on the obtained stability evaluation index. The fixing fixture represents a tool for fixing the glass fiber sample to be tested on the wear resistance testing machine. The glass fiber sample to be tested is infiltrated with industrial starch and dried. The pre-test is used to evaluate the stability of the glass fiber sample to be tested before the wear resistance test. The stability evaluation index is used to evaluate the stability degree of the glass fiber sample to be tested in bearing friction. The wear resistance test is used to evaluate the resistance of the glass fiber sample to be tested within a preset time period. Wear performance; Step 2, if a wear resistance test is performed, the test data of the glass fiber sample to be tested during the wear resistance test is monitored in real time to obtain the wear resistance interference score, and at the same time, whether the wear resistance test is completed is judged based on the obtained wear resistance interference score. The test data includes friction rate, relative friction factor and sample fracture condition. The wear resistance interference score is used to quantify the degree of influence on the wear resistance of the glass fiber sample to be tested during the wear resistance test; Step 3, if the wear resistance test is completed, the wear area is obtained and the wear resistance data of the glass fiber sample to be tested in the wear area is monitored to obtain the wear resistance evaluation index, and at the same time, based on the obtained wear resistance evaluation index, it is judged whether the corresponding glass fiber sample to be tested is qualified, and the wear resistance evaluation index is used to evaluate the wear resistance of the glass fiber sample to be tested during the wear resistance test.

[0022] Among them, the camera on the wear-resistant testing machine is used to monitor in real time the sample fracture situation during the wear-resistant performance test (including fracture and non-fracture, fracture is recorded as 0, non-fracture is recorded as 1, and it is displayed in real time on the display screen on the wear-resistant testing machine controller); the wear-resistant data include wear time, average wear load and total wear; the wear time (recorded in real time by a timer) is the time from the start of the pre-test to the fracture of the glass fiber sample to be tested that has completed the wear-resistant performance test; the average wear load (recorded in real time by a load sensor) is the average pressure applied to the glass fiber sample to be tested that has completed the wear-resistant performance test during the wear-resistant performance test; the total wear (measured by an electronic balance) is the difference between the mass of the glass fiber sample to be tested that has completed the wear resistance test and the mass of the glass fiber sample to be tested before the start of the pre-test.

[0023] Specifically, the main process of pre-testing the glass fiber sample to be tested on the fixed fixture is: place the glass fiber sample to be tested between the fixtures at both ends of the wear testing machine, set the test type to tensile test (i.e., pre-test) on the controller of the wear testing machine, and the tensile test speed to 300mm / min, then start the testing machine controller, start the tensile test, and monitor the glass fiber sample to be tested in real time during the tensile test.

[0024] like Figure 2 As shown, it is a process flow chart for testing the wear resistance of the glass fiber samples to be tested provided in the embodiment of the present application. The process not only takes into account the wear resistance of the glass fiber samples to be tested, but also comprehensively evaluates the overall performance of the glass fiber samples to be tested through pre-testing, real-time monitoring and quantitative evaluation, which helps to improve the product quality of the glass fiber samples and achieves improved reliability in monitoring the wear resistance of the glass fiber.

[0025] Furthermore, the stability evaluation index is obtained by the following method: A1, judging whether the degree of dryness of the glass fiber sample to be tested before the pre-test is within the allowable range of dryness, if so, pre-testing and executing A2, otherwise prompting the preset personnel to continue drying the glass fiber sample to be tested after being impregnated with industrial starch; A2, pre-testing the glass fiber sample to be tested under preset relative humidity conditions, and monitoring the pre-test data of the glass fiber sample to be tested within a preset time period in real time during the pre-test process to obtain the tensile strength score (i.e., K in the specific limiting expression of the stability evaluation index) and the bending strength score (i.e., W in the specific limiting expression of the stability evaluation index); A3, obtaining a preset temperature influence factor (i.e., W in the specific limiting expression of the stability evaluation index) from a preset database ), and at the same time, the duration of the pre-test of the glass fiber sample to be tested is counted to determine whether the pre-test duration is not greater than the preset pre-test duration. If so, execute A4, otherwise it indicates that the damage degree of the corresponding glass fiber sample to be tested does not meet the requirements. At this time, it is necessary to prompt the preset personnel to re-select the glass fiber sample to be tested and re-perform the pre-test; A4, obtain the pre-test duration ratio score (i.e., C in the specific restriction expression of the stability evaluation index) and combine the obtained tensile strength score, bending strength score and temperature influence factor to obtain the stability evaluation index.

[0026] Among them, the tensile strength score is the ratio of the average tensile strength to the reference average tensile strength; the bending strength score is the ratio of the average bending strength to the reference average bending strength; the temperature influence factor is used to reflect the influence of the temperature generated during the operation of the wear testing machine on the friction between the glass fiber sample to be tested and the fixed fixture; the pre-test duration ratio score is the ratio of the pre-test duration to the total duration of the preset time period.

[0027] Among them, the specific restriction expression of the stability evaluation index is: ; ; ; ; In the formula, e is a natural constant, It indicates the stability evaluation index of the glass fiber sample to be tested during the pre-test process within the preset time period. represents the temperature influence factor, It indicates the tensile strength score of the glass fiber sample to be tested during the pre-test process within a preset time period. It indicates the average tensile strength of the glass fiber sample to be tested during the pre-test process within a preset time period. represents the reference average tensile strength, It indicates the bending strength score of the glass fiber sample to be tested during the pre-test process within a preset time period. It indicates the average bending strength of the glass fiber sample to be tested during the pre-test process within a preset time period. represents the reference average bending strength, It indicates the percentage of pre-test time of the glass fiber sample to be tested during the pre-test process within the preset time period. Indicates the duration of the pre-test of the glass fiber sample to be tested during the pre-test process within the preset time period. Indicates the total duration of the preset time period. Indicates the preset pre-test duration. Indicates the dryness of the glass fiber sample before the pre-test within the preset time period. Indicates the allowable range of dryness.

[0028] In this embodiment, the preset relative humidity condition is set by the preset personnel, and usually the relative humidity of the pre-test environment is between 50% and 70%, which is the recommended humidity range in the glass fiber weaving process; the average tensile strength is the average value of the tensile strength of the glass fiber sample to be tested during the pre-test (indicating the ratio of the tensile force value displayed on the wear-resistant testing machine to the cross-sectional area of ​​the glass fiber sample to be tested) (the average tensile strength is obtained by counting the tensile strengths of multiple pre-tests and performing a ratio calculation with the number of pre-tests), and the average bending strength is the average value of the bending strength of the glass fiber sample to be tested during the pre-test (indicating the vertical force displayed on the wear-resistant testing machine and the cross-sectional area of ​​the glass fiber sample to be tested and the distance between the support points at both ends of the wear-resistant testing machine) (the average tensile strength is obtained by counting the bending strengths of multiple pre-tests and performing a ratio calculation with the number of pre-tests).

[0029] Specifically, the degree of dryness is obtained through an online moisture meter for glass fiber, the allowable range of dryness represents the range corresponding to the maximum and minimum values ​​of the historical dryness of the surface of the glass fiber samples after being impregnated with industrial starch in a preset database, the preset pre-test duration is represented by the sum and average of the historical pre-test durations in the preset database, the reference average tensile strength is represented by the sum and average of the historical tensile strengths of the glass fiber samples to be tested in the preset database, and the reference average bending strength is represented by the sum and average of the historical bending strengths of the glass fiber samples to be tested in the preset database.

[0030] The temperature influence factor is the influence factor corresponding to the process of obtaining the stability evaluation index in the preset database, which is used to quantify the degree of influence of the temperature generated during the operation of the wear-resistant testing machine on the stability evaluation index. When used, the influence factor corresponding to the temperature generated during the operation of the wear-resistant testing machine can be directly obtained from the preset database. The corresponding relationship can be a preset mapping relationship. For example, the temperature generated during the operation of the wear-resistant testing machine corresponds to the temperature generated during the operation of the wear-resistant testing machine in the process of obtaining the stability evaluation index and the influence factor corresponding to the temperature generated during the operation of the wear-resistant testing machine in the preset database. The mapping set is formed, and the real-time temperature generated during the operation of the wear-resistant testing machine is input into the mapping set to obtain the corresponding temperature influence factor generated during the operation of the wear-resistant testing machine. The mapping relationship can be one-to-one or many-to-one. The value range of the temperature influence factor generated during the operation of the wear-resistant testing machine in this example is .

[0031] It should be understood that the stability evaluation index decreases with the increase of temperature influence factor, and increases with the increase of tensile strength score, bending strength score and pre-test time proportion score. Among them, the tensile strength score increases with the increase of average tensile strength, the full strength score increases with the increase of average bending strength, and the pre-test time proportion score increases with the increase of pre-test duration.

[0032] It should be noted that (1) the stability evaluation index also indirectly affects the values ​​of the tensile strength score and the bending strength score. When the stability evaluation index of the glass fiber sample to be tested increases, it indicates that the glass fiber sample to be tested can withstand longer tensile tests and bending tests, and the corresponding decrease in tensile strength and bending strength decreases (that is, both the tensile strength score and the bending strength score increase). This indirect influence mechanism stems from the stability of the tensile and bending properties of the glass fiber sample to be tested under the pre-test, as reflected by the stability evaluation index. This stability helps the glass fiber sample to be tested maintain a higher level of stability during the wear resistance test, thereby improving the accuracy and reliability of the wear resistance evaluation of the glass fiber sample to be tested.

[0033] (2) The tensile strength score also indirectly affects the value of the bending strength score. When the average tensile strength of the glass fiber sample to be tested increases, it indicates that the internal structure of the glass fiber sample to be tested is tighter and the bonding force between the fibers is stronger. At this time, the corresponding average bending strength will also increase (that is, the bending strength score increases). By considering the above-mentioned indirect influence mechanism, it is helpful to improve the accuracy and efficiency of the stability assessment of the glass fiber sample to be tested during the pre-test process, thereby achieving an improvement in the reliability of the wear resistance monitoring of the glass fiber, and effectively solving the problem of low reliability of the wear resistance assessment of the glass fiber during the wear resistance test in the prior art.

[0034] Furthermore, the specific process of judging whether to perform the wear resistance test based on the obtained stability evaluation index is as follows: judging whether the obtained stability evaluation index is greater than the preset stability evaluation index: if the obtained stability evaluation index is greater than the preset stability evaluation index, it indicates that the stability degree of the corresponding glass fiber sample to be tested in withstanding friction meets the expected requirements and the wear resistance test is performed; if the obtained stability evaluation index is not greater than the preset stability evaluation index, it indicates that the stability degree of the corresponding glass fiber sample to be tested in withstanding friction does not meet the expected requirements, and the wear resistance test is not performed at this time.

[0035] In this embodiment, the preset stability evaluation index is represented by the sum and average of historical stability evaluation indicators in a preset database. This example can avoid unnecessary wear resistance tests on samples with insufficient stability by judging the stability evaluation index and deciding whether to perform the wear resistance test accordingly. This not only saves testing time and resources, but also avoids subsequent analysis and processing costs caused by unreliable test results, thereby improving the efficiency and accuracy of wear resistance tests.

[0036] Furthermore, the wear resistance interference score is obtained by the following method: when the obtained stability evaluation index is greater than the preset stability evaluation index, it is determined whether the glass fiber sample to be tested is broken during the wear resistance test. If so, it indicates that the wear resistance of the corresponding glass fiber sample to be tested does not meet the expected wear resistance requirements and the wear resistance test is continued for the remaining glass fiber samples to be tested, otherwise the relative friction factor is obtained; the friction rate and wear amount of the glass fiber sample to be tested during the wear resistance test are monitored in real time to determine whether the obtained friction rate is within the maximum allowable friction rate range. If so, the friction rate score (i.e., S in the limiting expression of the wear resistance interference score) and the wear amount score (i.e., L in the limiting expression of the wear resistance interference score) are obtained and processed respectively, and then combined with the obtained relative phase friction factor (i.e., Y in the limiting expression of the wear resistance interference score) to obtain the wear resistance interference score, otherwise the wear resistance test is stopped and the friction speed parameters of the wear tester are adjusted, and the wear resistance test is continued according to the adjusted friction speed parameters; Among them, the relative friction factor is the ratio of the friction force between the glass fiber sample to be tested and the friction material of the wear resistance testing machine during the wear resistance test to the positive pressure borne, the maximum allowable friction rate range represents the range corresponding to the maximum and minimum values ​​of the historical friction rate of the glass fiber sample to be tested in the preset database during the wear resistance test, the reference average friction rate is represented by the sum and average of the historical friction rates of the glass fiber samples to be tested in the preset database during the wear resistance test, and the reference average wear amount is represented by the sum and average of the historical wear amounts of the glass fiber samples to be tested in the preset database during the wear resistance test.

[0037] Specifically, the specific limiting expression of the wear resistance interference fraction is: ; ; ; In the formula, It indicates the wear resistance interference score of the glass fiber sample to be tested during the wear resistance test. It indicates the relative friction factor of the glass fiber sample to be tested during the wear resistance test. It indicates the friction rate fraction of the glass fiber sample to be tested during the wear resistance test. It indicates the friction rate of the glass fiber sample to be tested during the wear resistance test. represents the reference average friction rate, Indicates the maximum allowable friction rate range, It indicates the wear fraction of the glass fiber sample to be tested during the wear resistance test. Indicates the amount of wear of the glass fiber sample to be tested during the wear resistance test. Indicates the reference average wear volume, It indicates the stability evaluation index of the glass fiber sample to be tested during the pre-test process within the preset time period. Represents the preset stability evaluation indicator.

[0038] It should be understood that the wear resistance interference score increases with the increase of the relative friction factor, friction rate score and wear volume score. Among them, the relative friction factor also indirectly affects the values ​​of the friction rate score and the wear volume score. When the relative friction factor increases, it indicates that the contact pressure between the friction surfaces may increase, resulting in an increase in the friction rate, which will increase the energy consumption and heat generation in the friction process, thereby affecting the value of the friction rate score.

[0039] In addition, when the relative friction factor increases, the interaction force between the friction surfaces increases, which makes the material on the surface of the glass fiber sample more easily worn away, thereby affecting the value of the wear volume fraction. By considering the above indirect influence mechanism, it is helpful to achieve a more accurate selection of friction materials on the wear tester during the wear resistance test, thereby achieving an improvement in the reliability of glass fiber wear resistance monitoring, and effectively solving the problem of low reliability of glass fiber wear resistance evaluation during wear resistance test in the prior art.

[0040] It should be added that the specific process for judging whether the wear resistance test is completed based on the obtained wear resistance interference score is as follows: judging whether the obtained wear resistance interference score is within the allowable range of wear resistance interference: if the obtained wear resistance interference score is within the allowable range of wear resistance interference (including the case where it is equal to the maximum and minimum values ​​of the historical wear resistance interference scores), it indicates that the degree of influence of the glass fiber sample to be tested during the wear resistance test is within an acceptable range and the wear resistance test is completed; if the obtained wear resistance interference score is not within the allowable range of wear resistance interference, it indicates that the degree of influence of the glass fiber sample to be tested during the wear resistance test is not within an acceptable range. In this case, the wear resistance test is re-performed based on the friction material of the wear resistance testing machine after replacement.

[0041] The allowable range of wear resistance interference represents the range corresponding to the maximum and minimum values ​​of the historical wear resistance interference scores of the glass fiber samples to be tested in the wear resistance test process in the preset database.

[0042] Further, the steps of obtaining the wear resistance performance evaluation index are as follows: when the obtained wear resistance performance interference score is within the allowable range of wear resistance performance interference, the wear resistance time score (i.e., the wear resistance time score in the restriction expression of the wear resistance performance evaluation index) is obtained. ), average wear load fraction (i.e., the limit expression of wear resistance evaluation index ) and the total wear volume fraction (i.e., the limit expression of the wear resistance evaluation index ), combined with the obtained stability evaluation index (i.e., the limit expression of the wear resistance evaluation index ) and the wear resistance interference score (i.e., the limit expression of the wear resistance evaluation index ) to obtain the wear resistance performance evaluation index; the wear time score is the ratio of the wear time to the reference wear time; the average wear load score is the ratio of the average wear load to the reference average wear load; the total wear volume score is the ratio of the total wear volume to the reference total wear volume.

[0043] The specific limiting expression of the wear resistance evaluation index is: ; ; ; ; In the formula, e is a natural constant, Indicates the wear resistance evaluation index corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the wear resistance time score of the glass fiber sample to be tested that has completed the wear resistance test. Indicates the wear resistance time of the glass fiber sample to be tested that has completed the wear resistance test. Indicates the reference wear time. Indicates the average wear load score corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the average wear load corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the reference average wear load, Indicates the total wear fraction of the glass fiber sample to be tested that has completed the wear resistance test. Indicates the total wear amount of the glass fiber sample to be tested that has completed the wear resistance test. Indicates the reference total wear, It indicates the stability evaluation index of the glass fiber sample to be tested during the pre-test process within the preset time period. It indicates the wear resistance interference score of the glass fiber sample to be tested during the wear resistance test. Indicates the allowable range of interference with wear resistance.

[0044] It should be supplemented that, the reference wear resistance time is represented by the sum and average of the historical wear resistance times of the glass fiber samples to be tested in the preset database after the wear resistance performance test is completed, the reference average wear load is represented by the sum and average of the historical wear loads of the glass fiber samples to be tested in the preset database after the wear resistance performance test is completed, and the reference total wear amount is represented by the sum and average of the historical total wear amount of the glass fiber samples to be tested in the preset database after the wear resistance performance test is completed, thereby improving the accuracy and reliability of wear resistance performance evaluation indicators.

[0045] In this embodiment, assuming that the allowable range of wear resistance interference is between 0.8 and 1.2, the statistical table of changes in wear resistance evaluation indicators is shown in Table 1: Table 1 Statistics of changes in wear resistance evaluation indicators

[0046] It can be seen from Table 1 that the wear resistance performance evaluation index increases with the increase of the wear time score, the average wear load score, the total wear volume score and the stability evaluation index, and decreases with the increase of the wear resistance performance interference score. Among them, the wear time score increases with the increase of the wear time, the average wear load score increases with the increase of the average wear load, and the total wear volume score increases with the increase of the total wear volume.

[0047] It should be noted that the stability evaluation index also indirectly affects the value of the wear resistance time score. When the stability evaluation index increases, it means that the friction can be more stably withstood during the wear resistance test, so the wear resistance time score will be relatively increased. By considering this indirect influence mechanism, the wear resistance of the glass fiber sample to be tested can be more comprehensively evaluated, thereby achieving an improvement in the reliability of glass fiber wear resistance monitoring, and effectively solving the problem of low reliability of wear resistance evaluation of glass fiber during wear resistance testing in the prior art.

[0048] Furthermore, the specific process of judging whether the corresponding glass fiber sample to be tested is qualified based on the acquired wear resistance performance evaluation index is as follows: judging whether the acquired wear resistance performance evaluation index is within the wear resistance performance evaluation threshold range: if the acquired wear resistance performance evaluation index is within the wear resistance performance evaluation threshold range (including the case where it is equal to the maximum and minimum values ​​of the historical wear resistance performance evaluation index), then it indicates that the corresponding glass fiber sample to be tested is qualified and is marked as qualified; if the acquired wear resistance performance evaluation index is not within the wear resistance performance evaluation threshold range, then it indicates that the corresponding glass fiber sample to be tested is unqualified and is marked as unqualified.

[0049] The wear resistance evaluation threshold range represents the range corresponding to the maximum and minimum values ​​of the historical wear resistance evaluation index of the glass fiber sample to be tested in the preset database after the wear resistance test is completed.

[0050] In this embodiment, when the corresponding glass fiber sample to be tested fails and is marked as unqualified, the preset personnel take corresponding solutions through the unqualified warning displayed on the system display screen, which usually includes replacing the friction material of the wear testing machine and reselecting the glass fiber sample to be tested, thereby improving the stability and reliability of the wear resistance test of the glass fiber sample to be tested.

[0051] like Figure 3 As shown, it is a structural schematic diagram of a glass fiber wear resistance monitoring system using industrial starch provided in an embodiment of the present application. A glass fiber wear resistance monitoring system using industrial starch provided in an embodiment of the present application includes: a stability evaluation index acquisition module, a wear resistance interference score acquisition module and a wear resistance evaluation index acquisition module; wherein the stability evaluation index acquisition module is used to pre-test the glass fiber sample to be tested on the fixed fixture to obtain the stability evaluation index, and at the same time, judge whether to perform the wear resistance test based on the acquired stability evaluation index, the fixed fixture represents a tool for fixing the glass fiber sample to be tested on the wear test machine, the glass fiber sample to be tested is infiltrated with industrial starch and dried, the pre-test is used to evaluate the stability of the glass fiber sample to be tested before the wear resistance test, the stability evaluation index is used to evaluate the stability degree of the glass fiber sample to be tested in bearing friction, and the wear resistance test is used to evaluate the wear resistance of the glass fiber sample to be tested within a preset time period; The wear resistance interference score acquisition module is used for real-time monitoring of the test data of the glass fiber sample to be tested during the wear resistance test to obtain the wear resistance interference score if a wear resistance test is conducted, and judging whether the wear resistance test is completed based on the obtained wear resistance interference score. The test data include friction rate, relative friction factor and sample fracture condition. The wear resistance interference score is used to quantify the degree of influence on the wear resistance of the glass fiber sample to be tested during the wear resistance test; the wear resistance evaluation index acquisition module is used for obtaining the wear area and monitoring the wear resistance data of the glass fiber sample to be tested in the wear area to obtain the wear resistance evaluation index if the wear resistance test is completed, and judging whether the corresponding glass fiber sample to be tested is qualified based on the obtained wear resistance evaluation index. The wear resistance evaluation index is used to evaluate the wear resistance of the glass fiber sample to be tested during the wear resistance test.

[0052] In this embodiment, the wear resistance interference score obtained by pre-testing through the stability evaluation index acquisition module can screen out glass fiber samples that have shown instability before the test, thereby avoiding abnormal results in the formal wear resistance test and improving the accuracy of the test. Secondly, based on the judgment of the stability evaluation index and the wear resistance interference score, the system can intelligently decide whether to continue or complete the wear resistance test, avoiding unnecessary waste of testing time and resources. In addition, through the wear resistance evaluation index acquisition module, the system can accurately evaluate the wear resistance of the glass fiber samples, providing strong data support for product quality control.

[0053] The above system is suitable for glass fiber samples that have been impregnated with industrial starch and dried. This glass fiber wear resistance monitoring system using industrial starch has the advantages of improving test accuracy and reliability, optimizing test processes, improving test efficiency, and enhancing product quality controllability. It is of great significance to improving the quality and performance of glass fiber products.

[0054] To summarize, the embodiment of the present application pre-tests the glass fiber sample to be tested on the fixed fixture to obtain a stability evaluation index and determine whether to perform a wear resistance test, then determines whether the wear resistance test is completed based on the obtained wear resistance interference score, and finally determines whether the corresponding glass fiber sample to be tested is qualified based on the obtained wear resistance evaluation index, thereby achieving improved accuracy and reliability of the wear resistance test, and further achieving improved reliability of glass fiber wear resistance monitoring, effectively solving the problem of low reliability of wear resistance evaluation of glass fiber during wear resistance testing in the prior art.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0059] 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.

[0060] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for monitoring the wear resistance of glass fiber using industrial starch, characterized in that: The following steps are involved: Step 1: Pre-test the glass fiber sample to be tested on the fixed fixture to obtain a stability evaluation index, and determine whether to perform a wear resistance test based on the obtained stability evaluation index, wherein the stability evaluation index is used to evaluate the stability of the glass fiber sample to be tested in withstanding friction; Step 2: If a wear resistance test is performed, the test data of the glass fiber sample to be tested during the wear resistance test is monitored in real time to obtain a wear resistance interference score, and at the same time, based on the obtained wear resistance interference score, it is determined whether the wear resistance test is completed, and the wear resistance interference score is used to quantify the degree of influence on the wear resistance of the glass fiber sample to be tested during the wear resistance test; Step three, if the wear resistance test is completed, obtain the wear area and monitor the wear resistance data of the glass fiber sample to be tested in the wear area to obtain the wear resistance evaluation index, and at the same time, judge whether the corresponding glass fiber sample to be tested is qualified based on the acquired wear resistance evaluation index. The wear resistance evaluation index is used to evaluate the wear resistance of the glass fiber sample to be tested during the wear resistance test.

2. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 1, characterized in that: The stability evaluation index is obtained by the following method: A1, determine whether the dryness of the glass fiber sample to be tested before the pre-test is within the allowable dryness range, if so, perform the pre-test and execute A2, otherwise prompt the preset personnel to continue drying the glass fiber sample to be tested; A2, pre-testing the glass fiber sample to be tested under a preset relative humidity condition, and monitoring the pre-test data of the glass fiber sample to be tested in a preset time period in real time during the pre-test process to obtain the tensile strength score and the bending strength score; A3, obtaining the preset temperature influence factor from the preset database, and at the same time counting the duration of the pre-test of the glass fiber sample to be tested, and judging whether the pre-test duration is not greater than the preset pre-test duration. If so, executing A4, otherwise prompting the preset personnel to re-select the glass fiber sample to be tested and re-perform the pre-test; A4, obtain the pre-test time proportion score and combine it with the obtained tensile strength score, bending strength score and temperature influence factor to obtain the stability evaluation index; The tensile strength score is the ratio of the average tensile strength to the reference average tensile strength; The bending strength score is the ratio of the average bending strength to the reference average bending strength; The pre-test duration ratio is the ratio of the pre-test duration to the total duration of the preset time period.

3. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 1, characterized in that: The specific process of judging whether to perform the wear resistance test based on the obtained stability evaluation index is as follows: Determine whether the obtained stability evaluation index is greater than the preset stability evaluation index: If the obtained stability evaluation index is greater than the preset stability evaluation index, the wear resistance test is performed; If the obtained stability evaluation index is not greater than the preset stability evaluation index, the wear resistance test is not performed.

4. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 1, characterized in that: The wear resistance interference score is obtained by the following method: Determine whether the glass fiber sample to be tested is broken during the wear resistance test. If so, continue to perform the wear resistance test on the remaining glass fiber samples to be tested. Otherwise, obtain the relative friction factor. Real-time monitoring of the friction rate and wear amount of the glass fiber sample to be tested during the wear resistance test process, judging whether the obtained friction rate is within the maximum allowable friction rate range, if so, obtaining the friction rate score and the wear amount score and processing them respectively, and then combining them with the obtained phase friction factor to obtain the wear resistance interference score, otherwise, the wear resistance test is stopped and the friction speed parameters of the wear resistance tester are adjusted, and the wear resistance test is continued according to the adjusted friction speed parameters; The relative friction factor is the ratio of the normal pressure borne by the friction force between the glass fiber sample to be tested and the friction material of the wear tester during the wear resistance test.

5. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 1, characterized in that: The specific process of judging whether the wear resistance test is completed based on the obtained wear resistance interference score is as follows: Determine whether the obtained wear resistance interference score is within the allowable range of wear resistance interference: If the obtained wear resistance interference score is within the allowable range of wear resistance interference, the wear resistance test is completed; If the obtained wear resistance interference score is not within the allowable range of wear resistance interference, the wear resistance test is repeated based on the replaced friction material of the wear resistance testing machine.

6. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 1, characterized in that: The wear data include wear time, average wear load and total wear amount; The wear resistance time is the time from the start of the pre-test to the breakage of the glass fiber sample to be tested after the wear resistance test is completed; The average wear load is the average pressure applied to the glass fiber sample to be tested during the wear resistance test. The total wear amount is the difference between the mass of the glass fiber sample to be tested after the wear resistance test is completed and the mass of the glass fiber sample to be tested before the pre-test begins.

7. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 6, characterized in that: The steps for obtaining the wear resistance evaluation index are as follows: Obtain the wear time score, average wear load score and total wear volume score, and combine the obtained stability evaluation index and wear resistance interference score to obtain the wear resistance performance evaluation index; The wear duration score is the ratio of the wear duration to the reference wear duration; The average wear load fraction is the ratio of the average wear load to the reference average wear load; The total wear volume fraction is a ratio of the total wear volume to the reference total wear volume.

8. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 7, characterized in that: The specific limiting expression of the wear resistance evaluation index is: ； In the formula, e is a natural constant, Indicates the wear resistance evaluation index corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the wear resistance time score of the glass fiber sample to be tested that has completed the wear resistance test. Indicates the average wear load score corresponding to the glass fiber sample to be tested that has completed the wear resistance test. Indicates the total wear fraction of the glass fiber sample to be tested that has completed the wear resistance test. It indicates the stability evaluation index of the glass fiber sample to be tested during the pre-test process within the preset time period. It indicates the wear resistance interference score of the glass fiber sample to be tested during the wear resistance test. Indicates the allowable range of interference with wear resistance.

9. A method for monitoring the wear resistance of glass fiber using industrial starch as claimed in claim 1, characterized in that: The specific process of judging whether the corresponding glass fiber sample to be tested is qualified based on the acquired wear resistance evaluation index is as follows: Determine whether the acquired wear resistance performance evaluation index is within the wear resistance performance evaluation threshold range: If the obtained wear resistance performance evaluation index is within the wear resistance performance evaluation threshold range, it indicates that the corresponding glass fiber sample to be tested is qualified and is marked as qualified; If the acquired wear resistance performance evaluation index is not within the wear resistance performance evaluation threshold range, it indicates that the corresponding glass fiber sample to be tested is unqualified and is marked as unqualified.

10. A glass fiber wear resistance monitoring system using industrial starch, characterized in that: include: Stability evaluation index acquisition module, wear resistance performance interference score acquisition module and wear resistance performance evaluation index acquisition module; The stability evaluation index acquisition module is used to pre-test the glass fiber sample to be tested on the fixed fixture to obtain the stability evaluation index, and determine whether to perform the wear resistance test based on the obtained stability evaluation index. The stability evaluation index is used to evaluate the stability of the glass fiber sample to be tested in terms of friction. The wear resistance interference score acquisition module is used to monitor the test data of the glass fiber sample to be tested in real time during the wear resistance test to obtain the wear resistance interference score if the wear resistance test is performed, and to determine whether the wear resistance test is completed based on the obtained wear resistance interference score, and the wear resistance interference score is used to quantify the degree of influence on the wear resistance of the glass fiber sample to be tested during the wear resistance test; The wear resistance performance evaluation index acquisition module is used to obtain the wear area and monitor the wear resistance data of the glass fiber sample to be tested in the wear area to obtain the wear resistance performance evaluation index if the wear resistance performance test is completed, and at the same time, judge whether the corresponding glass fiber sample to be tested is qualified based on the acquired wear resistance performance evaluation index. The wear resistance performance evaluation index is used to evaluate the wear resistance of the glass fiber sample to be tested during the wear resistance performance test.

Images