Coating performance testing method and coating performance testing system
By placing small balls in the paint and using vibrator to simulate transportation bumpy scenes, measuring the vibration phase and settlement speed of the balls, the problem of color filler sinking during coating transportation is solved, and effective testing of the water separation of the paint is achieved to ensure that The construction performance and service life of the coating.
Patent Information
- Application Number
- CN202310823207.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-05
- Publication Date
- 2025-01-07
AI Technical Summary
During the transportation process, the paint filler sinks and the base material floats up, resulting in the paint layering and water separation, affecting the construction performance, and it is difficult to stir evenly, resulting in the scrapping of the paint.
Provide a coating performance testing method and system, by placing small balls in transparent containers, simulating the pigment filler in the paint, using vibrators to simulate the bumpy scene in the vehicle transportation state, collecting vibration images of small balls through high-speed cameras, and the main control The test result of the water separation of the coating is determined based on the vibration phase and settlement speed.
By intuitively quantifying the water separation of the paint, it can effectively determine whether the paint meets the preset water separation requirements, avoid water separation during transportation, and ensure the construction performance and service life of the paint.
Smart Images
Figure CN119269337A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of coating technology, and in particular to a coating performance testing method and a coating performance testing system. Background Art
[0002] At present, with the rapid development of the architectural coatings market, many people like to use paint to paint the walls when decorating their houses. During the transportation of the paint, the vehicle bumps up and down, causing the pigments and fillers in the paint to sink due to their high density, and the base material to float, causing the paint to delaminate, that is, the paint to separate water.
[0003] The sinking of pigments and fillers in the paint will cause uneven distribution of the ingredients in the paint formula in the packaging, affecting the paint's construction performance and causing film defects such as flowery, orange peel, cracking, and blistering. Severe water separation will also cause the paint to sink to the bottom and be difficult to stir evenly, resulting in the paint being scrapped.
[0004] Therefore, there is an urgent need for a method to test the water separation property of coatings. Summary of the invention
[0005] Based on this, it is necessary to provide a coating performance testing method and a coating performance testing system to address the above technical issues.
[0006] In a first aspect, a coating performance testing method is provided, the method being applied to a coating performance testing system, the coating performance testing system comprising a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and a small ball, the method comprising:
[0007] The main controller controls the vibrator to vibrate according to a pre-stored target amplitude and target frequency; the target amplitude and the target frequency are the amplitude and frequency corresponding to the target transport state respectively;
[0008] When the ball in the transparent container vibrates with the vibrator, the high-speed camera collects a vibration image of the ball and sends the vibration image to the main controller;
[0009] The main controller determines the vibration phase and the settling speed of the ball according to the target amplitude, the target frequency and the vibration image;
[0010] The main controller determines a water separation test result of the coating to be tested according to the vibration phase and the sedimentation velocity.
[0011] As an optional implementation manner, the main controller determines the vibration phase and the settling speed of the ball according to the target amplitude, the target frequency and the vibration image, including:
[0012] The main controller determines the vibration curve of the ball according to the vibration image;
[0013] The main controller determines the vibration function of the ball according to the target amplitude, the target frequency and the vibration curve; the vibration function represents the change of the vibration height of the ball over time;
[0014] The main controller determines the vibration phase and the settling speed of the ball according to the vibration function.
[0015] As an optional implementation, the vibration function formula is:
[0016]
[0017] Among them, Y represents the vibration height, A represents the amplitude, ω represents the frequency, and t represents the time. represents the phase, m represents the sedimentation velocity, and b represents the intercept.
[0018] As an optional implementation manner, the main controller determines the water separation test result of the coating to be tested according to the vibration phase and the sedimentation velocity, including:
[0019] If the vibration phase is greater than or equal to a preset vibration phase threshold, and the sedimentation velocity is less than or equal to a preset sedimentation velocity threshold, the main controller determines that the water separation test result of the coating to be tested meets the preset water separation requirement;
[0020] If the vibration phase is smaller than a preset vibration phase threshold, or the sedimentation velocity is larger than a preset sedimentation velocity threshold, the main controller determines that the water separation test result of the tested coating does not meet the preset water separation requirement.
[0021] In a second aspect, a coating performance testing system is provided, the coating performance testing system comprising a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and the small ball;
[0022] The main controller is used to control the vibrator to vibrate according to a pre-stored target amplitude and target frequency; the target amplitude and the target frequency are the amplitude and frequency corresponding to the target transport state respectively;
[0023] The high-speed camera is used to collect vibration images of the small balls in the transparent container when the small balls are vibrating with the vibrator, and send the vibration images to the main controller;
[0024] The main controller is used to determine the vibration phase and the settling speed of the ball according to the target amplitude, the target frequency and the vibration image;
[0025] The main controller is used to determine the water separation test result of the paint to be tested according to the vibration phase and the sedimentation velocity.
[0026] As an optional implementation manner, the main controller is used to determine the vibration curve of the ball according to the vibration image;
[0027] The main controller is used to determine the vibration function of the ball according to the target amplitude, the target frequency and the vibration curve; the vibration function represents the change of the vibration height of the ball over time;
[0028] The main controller is used to determine the vibration phase and sedimentation speed of the ball according to the vibration function.
[0029] As an optional implementation, the vibration function formula is:
[0030]
[0031] Among them, Y represents the vibration height, A represents the amplitude, ω represents the frequency, and t represents the time. represents the phase, m represents the sedimentation velocity, and b represents the intercept.
[0032] As an optional implementation, the main controller is used to determine that the water separation test result of the coating to be tested meets the preset water separation requirement if the vibration phase is greater than or equal to a preset vibration phase threshold and the sedimentation velocity is less than or equal to a preset sedimentation velocity threshold;
[0033] The main controller is used to determine that the water separation test result of the tested coating does not meet the preset water separation requirement if the vibration phase is less than a preset vibration phase threshold, or the sedimentation velocity is greater than a preset sedimentation velocity threshold.
[0034] The present application provides a coating performance testing method and a coating performance testing system. The technical solution provided by the embodiment of the present application brings at least the following beneficial effects: the coating performance testing system includes a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and the small ball. The main controller controls the vibrator to vibrate according to the pre-stored target amplitude and target frequency. The target amplitude and target frequency are the amplitude and frequency corresponding to the target transportation state, respectively. During the vibration of the small ball in the transparent container with the vibrator, the high-speed camera collects the vibration image of the small ball and sends the vibration image to the main controller. The main controller determines the vibration phase and sedimentation velocity of the small ball according to the target amplitude, target frequency and vibration image. Afterwards, the main controller determines the water separation test result of the coating to be tested according to the vibration phase and sedimentation velocity. The present application simulates the bumpy scene under the vehicle transportation state by a vibrator, and simulates the pigment filler in the coating by placing small balls in the coating. In this way, based on the vibration image of the small ball during the vibration process, the vibration phase and sedimentation velocity of the small ball during the vibration process are determined, and the water separation of the coating to be tested can be intuitively quantified.
[0035] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0037] Figure 1 A schematic diagram of the structure of a coating performance testing system provided in an embodiment of the present application;
[0038] Figure 2 A flow chart of a coating performance testing method provided in an embodiment of the present application;
[0039] Figure 3 A flow chart of a coating performance testing method provided in an embodiment of the present application;
[0040] Figure 4 A schematic diagram of a motion trajectory image provided by an embodiment of the present application;
[0041] Figure 5 A schematic diagram of a vibration curve provided in an embodiment of the present application. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0043] The coating performance testing method provided in the embodiment of the present application can be applied to the coating performance testing system. Figure 1 As shown, the coating performance testing system includes a main controller 110, a vibrator 120, a high-speed camera 130 and a transparent container 140. The main controller 110 is electrically connected to the vibrator 120 and the high-speed camera 130, respectively. The vibrator 120 is placed on a horizontal plane, and the transparent container 140 is used to hold the coating 141 to be tested and the small ball 142, and is fixed on the vibrator 120. It should be noted that the small ball 142 can be a solid small ball 142, or a hollow small ball 142, or a metal small ball 142, or a small ball 142 of other materials. The embodiment of the present application is not limited thereto, but it is necessary to ensure that the small ball 142 is in the coating, rather than floating on the coating.
[0044] The main controller 110 controls the vibrator 120 to vibrate according to the pre-stored target amplitude and target frequency. Correspondingly, the transparent container 140 fixed on the vibrator 120 performs sinusoidal vibrations up and down with the vibration of the vibrator 120, and at the same time, the paint 141 to be tested and the small ball 142 in the transparent container 140 also vibrate up and down. During the vibration of the small ball 142 in the transparent container 140 with the vibrator 120, the high-speed camera 130 collects the vibration image of the small ball 142 and sends the vibration image to the main controller 110. The main controller 110 determines the vibration phase and sedimentation velocity of the small ball 142 based on the target amplitude, target frequency and vibration image. Afterwards, the main controller 110 determines the water separation test result of the paint 141 to be tested based on the vibration phase and sedimentation velocity. The present application uses a vibrator to simulate the bumpy scene under the vehicle transportation state, and simulates the pigment filler in the paint by placing small balls in the paint. In this way, based on the vibration image of the ball during the vibration process, the vibration phase and sedimentation velocity of the ball during the vibration process can be determined, and the water separation property of the coating to be tested can be intuitively quantified.
[0045] The following will describe in detail a coating performance testing method provided in an embodiment of the present application in conjunction with a specific implementation method. Figure 2 A flow chart of a coating performance testing method provided in an embodiment of the present application, such as Figure 2 As shown, the specific steps are as follows:
[0046] Step 201: The main controller controls the vibrator to vibrate according to the pre-stored target amplitude and target frequency, wherein the target amplitude and target frequency are the amplitude and frequency corresponding to the target transport state, respectively.
[0047] In practice, during the transportation of the paint, the vehicle bumps up and down with the vehicle, causing the pigments and fillers in the paint to sink due to their relatively large density, and the base material to float, causing the paint to be stratified, that is, the paint to separate water. In order to detect whether the water separation performance of the paint can meet the transportation requirements, it is necessary to simulate the bumpy scene during vehicle transportation. Based on this, the present application uses a main controller to control the vibrator to vibrate according to the amplitude (i.e., the target amplitude pre-stored in the main controller) and frequency (i.e., the target frequency pre-stored in the main controller) corresponding to the vehicle in the target transportation state to simulate the bumpy scene during vehicle transportation. Among them, the amplitude and frequency corresponding to the vehicle in the target transportation state can be collected and recorded by setting a sensor on the paint packaging barrel actually transported by the vehicle. The amplitude and frequency can be an amplitude range and a frequency range.
[0048] Step 202, when the ball in the transparent container vibrates with the vibrator, the high-speed camera collects the vibration image of the ball and sends the vibration image to the main controller;
[0049] In practice, the pigments and base materials in the coating are completely mixed together, and it is impossible to directly obtain the vibration of the pigments and base materials during the vehicle transportation process. Therefore, the present application uses small balls to simulate the pigments and base materials in the coating. Since the transparent container is fixed on the vibrator, the transparent container will also vibrate up and down with the up and down vibration of the vibrator. Correspondingly, the coating and small balls to be tested in the transparent container will also vibrate up and down. During the vibration of the small balls in the transparent container with the vibrator, the high-speed camera collects the vibration image of the small balls and sends the vibration image to the main controller. Since the small balls simulate the pigments and base materials in the coating, the vibration image of the small balls is also the vibration image of the pigments and base materials in the coating. It should be noted that the specific gravity of the small balls needs to be as close as possible to the specific gravity of the pigments and base materials in the coating to be tested as needed, and the size of the small balls should be as small as possible while ensuring that the high-speed camera can clearly capture the vibration image.
[0050] Step 203: The main controller determines the vibration phase and settling speed of the ball according to the target amplitude, target frequency and vibration image.
[0051] In practice, the vibration phase and sedimentation velocity of the ball can characterize the water separation performance of the coating. The specific analysis process will be discussed in detail later and will not be repeated here. Therefore, the main controller can determine the vibration phase and sedimentation velocity of the ball based on the target amplitude, target frequency and vibration image.
[0052] As an optional implementation, Figure 3 As shown, the main controller determines the vibration phase and settling velocity of the ball according to the target amplitude, target frequency and vibration image as follows:
[0053] Step 301: The main controller determines the vibration curve of the ball according to the vibration image.
[0054] In implementation, since the vibration of the ball is up and down vibration at the same position, after the main controller obtains the vibration image of the ball, it is necessary to perform image processing on the vibration image according to the acquisition time of each frame, so as to obtain the motion trajectory image of the vibration height (Y) of the ball over time (t). Figure 4 A schematic diagram of a motion trajectory image provided by an embodiment of the present application. Then, the main controller performs linear fitting based on the motion trajectory image of the ball to obtain a vibration curve of the vibration height (Y) of the ball over time (t). Figure 5 A schematic diagram of a vibration curve provided in an embodiment of the present application.
[0055] Step 302: The main controller determines the vibration function of the ball according to the target amplitude, target frequency and vibration curve, wherein the vibration function represents the change of the vibration height of the ball over time.
[0056] In practice, after the main controller obtains the vibration curve of the ball, it can further use Python as the programming language to fit the motion trajectory according to the target amplitude, target frequency and vibration curve, and finally convert it into a digital function to determine the vibration function of the ball. Among them, the vibration function represents the change of the vibration height (Y) of the ball shown by the vibration curve of the ball over time (t).
[0057] As an optional implementation, the vibration function formula is:
[0058]
[0059] Among them, Y represents the vibration height, A represents the amplitude, ω represents the frequency, and t represents the time. represents the phase, m represents the sedimentation velocity, and b represents the intercept.
[0060] Step 303: The main controller determines the vibration phase and settling speed of the ball according to the vibration function.
[0061] In practice, after the main control obtains the vibration function of the ball, the vibration phase of the cell can be directly determined from the vibration function (i.e. ) and sedimentation velocity (i.e. m).
[0062] Step 204 : The main controller determines the water separation test result of the coating 141 to be tested according to the vibration phase and the sedimentation velocity.
[0063] In implementation, after the main controller obtains the vibration phase and sedimentation velocity of the ball, it can further determine the water separation test result of the paint to be tested based on the vibration phase and sedimentation velocity.
[0064] As an optional implementation, the main controller determines that the water separation test result of the tested coating is divided into two cases according to the vibration phase and the sedimentation velocity.
[0065] In case one, if the vibration phase is greater than or equal to the preset vibration phase threshold, and the sedimentation velocity is less than or equal to the preset sedimentation velocity threshold, the main controller determines that the water separation test result of the tested coating meets the preset water separation requirement.
[0066] In case 2, if the vibration phase is less than the preset vibration phase threshold, or the sedimentation velocity is greater than the preset sedimentation velocity threshold, the main controller determines that the water separation test result of the tested coating does not meet the preset water separation requirement.
[0067] In practice, when the paint is vibrated, shear force will be generated in the paint, and the shear force will cause the viscosity of the paint to change. Usually, as the shear force increases, the viscosity of the paint decreases accordingly. Generally, paints with higher viscosity can greatly alleviate the sedimentation of pigments and fillers in the paint. As a non-Newtonian fluid, its internal structure changes with the change of shear force. After the shear force is removed, the thixotropic behavior exhibited as the recovery of the internal structure is also different; in paints with low thixotropy, the internal structure is disrupted and then quickly rearranged. Microscopically, the space between the upper and lower parts of the pigment and filler particles due to shear is smaller, which is manifested as a vibration phase on the vibration curve. In coatings with high thixotropy, after the base material is shear-thinned, it takes more time to restore the structure, so the upper and lower parts of the pigment and filler particles have more room for movement, which is reflected as a vibration phase on the vibration curve. In other words, the vibration phase of the coating with large thixotropy is The vibration phase of the coating with large thixotropy and small thixotropy Small.
[0068] At the same time, the pigments and fillers in the paint will gradually settle during the vibration process. If the settling speed is large, it means that the paint is more likely to separate water during transportation, and the paint does not meet the preset water separation requirements. On the contrary, it means that the paint is less likely to separate water during transportation, and the paint meets the preset water separation requirements.
[0069] Based on the above analysis, if the vibration phase is greater than or equal to the preset vibration phase threshold, and the sedimentation velocity is less than or equal to the preset sedimentation velocity threshold, the main controller determines that the water separation test result of the tested coating meets the preset water separation requirement. If the vibration phase is less than the preset vibration phase threshold, or the sedimentation velocity is greater than the preset sedimentation velocity threshold, the main controller determines that the water separation test result of the tested coating does not meet the preset water separation requirement.
[0070] Optionally, based on the above-mentioned coating performance testing system, technicians can further analyze the correspondence between the coating's thixotropy, thickener type, thickener addition amount and paint film texture.
[0071] While keeping one variable in a certain frequency or amplitude unchanged, keep increasing the value of another variable until the ball starts to sink (that is, m in the vibration function is not 0), and record the vibration phase of the vibration function. Specifically, cellulose in the thickener is selected as a representative to study the thixotropy of the coating. The amount of cellulose is adjusted in the coating formula, the amplitude is increased at a certain frequency until the ball begins to sink (that is, m in the vibration function is not 0), and the vibration phase of the vibration function is recorded. Similarly, ensuring that the amount of cellulose is constant, different celluloses are selected, and the amplitude is increased at a certain frequency until the ball begins to sink (i.e., m in the vibration function is not 0), and the vibration phase of the vibration function is recorded. Next, the prepared coating was applied, strictly following the one-base-two-side rolling process, and the difference in the paint film texture was compared to establish the vibration phase. The correspondence with texture.
[0072] Commonly used thickeners for coatings include but are not limited to cellulose, HASE and polyurethane thickeners.
[0073] The present application provides a method for testing coating performance. The method is applied to a coating performance testing system, which includes a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and the small ball. The main controller controls the vibrator to vibrate according to the pre-stored target amplitude and target frequency. The target amplitude and target frequency are the amplitude and frequency corresponding to the target transport state, respectively. During the vibration of the small ball in the transparent container with the vibrator, the high-speed camera collects the vibration image of the small ball and sends the vibration image to the main controller. The main controller determines the vibration phase and sedimentation velocity of the small ball according to the target amplitude, target frequency and vibration image. Afterwards, the main controller determines the water separation test result of the coating to be tested according to the vibration phase and sedimentation velocity. The present application simulates the bumpy scene under the vehicle transportation state by a vibrator, and simulates the pigment filler in the coating by placing small balls in the coating. In this way, based on the vibration image of the small ball during the vibration process, the vibration phase and sedimentation velocity of the small ball during the vibration process are determined, and the water separation of the coating to be tested can be intuitively quantified.
[0074] It should be understood that although Figures 2 to 3The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figures 2 to 3 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.
[0075] It can be understood that the same / similar parts between the various embodiments of the above method in this specification can refer to each other, and each embodiment focuses on the differences from other embodiments. For related points, please refer to the description of other method embodiments.
[0076] The present application also provides a coating performance testing system. Figure 1 As shown, the coating performance testing system includes a main controller 110, a vibrator 120, a high-speed camera 130 and a transparent container 140, wherein the transparent container 140 is fixed on the vibrator 120 and is used to hold the coating 141 to be tested and the small ball 142;
[0077] The main controller 110 is used to control the vibrator 120 to vibrate according to a pre-stored target amplitude and target frequency; the target amplitude and target frequency are the amplitude and frequency corresponding to the target transport state respectively;
[0078] The high-speed camera 130 is used to collect a vibration image of the ball 142 in the transparent container 140 when the ball 142 is vibrating with the vibrator 120, and send the vibration image to the main controller 110;
[0079] The main controller 110 is used to determine the vibration phase and settling speed of the ball 142 according to the target amplitude, the target frequency and the vibration image;
[0080] The main controller 110 is used to determine the water separation test result of the coating 141 to be tested according to the vibration phase and the sedimentation velocity.
[0081] As an optional implementation, the main controller 110 is used to determine the vibration curve of the ball 142 according to the vibration image;
[0082] The main controller 110 is used to determine the vibration function of the ball 142 according to the target amplitude, the target frequency and the vibration curve; the vibration function represents the change of the vibration height of the ball 142 over time;
[0083] The main controller 110 is used to determine the vibration phase and sedimentation velocity of the ball 142 according to the vibration function.
[0084] As an optional implementation, the formula of the vibration function is:
[0085]
[0086] Among them, Y represents the vibration height, A represents the amplitude, ω represents the frequency, and t represents the time. represents the phase, m represents the sedimentation velocity, and b represents the intercept.
[0087] As an optional implementation, the main controller 110 is used to determine that the water separation test result of the coating 141 to be tested meets the preset water separation requirement if the vibration phase is greater than or equal to the preset vibration phase threshold and the sedimentation velocity is less than or equal to the preset sedimentation velocity threshold;
[0088] The main controller 110 is used to determine that the water separation test result of the tested coating 141 does not meet the preset water separation requirement if the vibration phase is less than a preset vibration phase threshold, or the sedimentation velocity is greater than a preset sedimentation velocity threshold.
[0089] The present application provides a coating performance testing system, which includes a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and the small balls. The main controller controls the vibrator to vibrate according to the pre-stored target amplitude and target frequency. The target amplitude and target frequency are the amplitude and frequency corresponding to the target transportation state, respectively. During the vibration of the small balls in the transparent container with the vibrator, the high-speed camera collects the vibration image of the small balls and sends the vibration image to the main controller. The main controller determines the vibration phase and sedimentation velocity of the small balls according to the target amplitude, target frequency and vibration image. Afterwards, the main controller determines the water separation test result of the coating to be tested according to the vibration phase and sedimentation velocity. The present application simulates the bumpy scene under the vehicle transportation state by a vibrator, and simulates the pigment filler in the coating by placing small balls in the coating. In this way, based on the vibration image of the small balls during the vibration process, the vibration phase and sedimentation velocity of the small balls during the vibration process are determined, and the water separation of the coating to be tested can be intuitively quantified.
[0090] For the specific definition of the coating performance test system, please refer to the definition of the coating performance test method above, which will not be repeated here. Each module in the above coating performance test system can be implemented in whole or in part by software, hardware and a combination thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.
[0091] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
[0092] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0093] It should also be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for display, data for analysis, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.
[0094] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
[0095] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0096] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.
Claims
1. A method for testing coating performance, characterized in that: The method is applied to a coating performance testing system, which includes a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and a small ball. The method includes: The main controller controls the vibrator to vibrate according to a pre-stored target amplitude and target frequency; the target amplitude and the target frequency are the amplitude and frequency corresponding to the target transport state respectively; When the ball in the transparent container vibrates with the vibrator, the high-speed camera collects a vibration image of the ball and sends the vibration image to the main controller; The main controller determines the vibration phase and the settling speed of the ball according to the target amplitude, the target frequency and the vibration image; The main controller determines a water separation test result of the coating to be tested according to the vibration phase and the sedimentation velocity.
2. The method according to claim 1, characterized in that The main controller determines the vibration phase and the settling speed of the ball according to the target amplitude, the target frequency and the vibration image, including: The main controller determines the vibration curve of the ball according to the vibration image; The main controller determines the vibration function of the ball according to the target amplitude, the target frequency and the vibration curve; the vibration function represents the change of the vibration height of the ball over time; The main controller determines the vibration phase and the settling speed of the ball according to the vibration function.
3. The method according to claim 2, characterized in that The formula of the vibration function is: Among them, Y represents the vibration height, A represents the amplitude, ω represents the frequency, and t represents the time. represents the phase, m represents the sedimentation velocity, and b represents the intercept.
4. The method according to claim 1, characterized in that: The main controller determines the water separation test result of the coating to be tested according to the vibration phase and the sedimentation velocity, including: If the vibration phase is greater than or equal to a preset vibration phase threshold, and the sedimentation velocity is less than or equal to a preset sedimentation velocity threshold, the main controller determines that the water separation test result of the coating to be tested meets the preset water separation requirement; If the vibration phase is smaller than a preset vibration phase threshold, or the sedimentation velocity is larger than a preset sedimentation velocity threshold, the main controller determines that the water separation test result of the tested coating does not meet the preset water separation requirement.
5. A coating performance testing system, characterized in that: The coating performance testing system comprises a main controller, a vibrator, a high-speed camera and a transparent container, wherein the transparent container is fixed on the vibrator and is used to hold the coating to be tested and the small balls; The main controller is used to control the vibrator to vibrate according to a pre-stored target amplitude and target frequency; the target amplitude and the target frequency are the amplitude and frequency corresponding to the target transport state respectively; The high-speed camera is used to collect vibration images of the small balls in the transparent container when the small balls are vibrating with the vibrator, and send the vibration images to the main controller; The main controller is used to determine the vibration phase and the settling speed of the ball according to the target amplitude, the target frequency and the vibration image; The main controller is used to determine the water separation test result of the paint to be tested according to the vibration phase and the sedimentation velocity.
6. The system according to claim 5, characterized in that The main controller is used to determine the vibration curve of the ball according to the vibration image; The main controller is used to determine the vibration function of the ball according to the target amplitude, the target frequency and the vibration curve; the vibration function represents the change of the vibration height of the ball over time; The main controller is used to determine the vibration phase and sedimentation speed of the ball according to the vibration function.
7. The system according to claim 6, characterized in that The formula of the vibration function is: Among them, Y represents the vibration height, A represents the amplitude, ω represents the frequency, and t represents the time. represents the phase, m represents the sedimentation velocity, and b represents the intercept.
8. The system according to claim 5, characterized in that The main controller is used to determine that the water separation test result of the coating to be tested meets the preset water separation requirement if the vibration phase is greater than or equal to a preset vibration phase threshold and the sedimentation velocity is less than or equal to a preset sedimentation velocity threshold; The main controller is used to determine that the water separation test result of the tested coating does not meet the preset water separation requirement if the vibration phase is less than a preset vibration phase threshold, or the sedimentation velocity is greater than a preset sedimentation velocity threshold.