Viscosity data analysis system and method for ceramic slurry after defoaming based on sampling test

Abstract

The invention discloses a system and a method for analyzing viscosity data of ceramic slurry after defoaming based on a sampling test, and belongs to the technical field of analysis of the viscosity data of the ceramic slurry. The system comprises a slurry parameter acquisition module, a curve graph module, a data management module and a feedback command and control module, the slurry parameter acquisition module is used for acquiring viscosity, solid content, density data and solvent desorption amount of ceramic slurry, and the data management module is responsible for storing and managing all acquired data. The curve graph module is used for carrying out fitting calculation on viscosity, solid content, density and solvent loss on the basis of the collected data to generate a corresponding curve graph and carrying out predictive analysis on slurry parameters, and the feedback command and control module is used for monitoring the defoaming process. Slurry parameter testing is not needed in follow-up slurry production.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic slurry viscosity data analysis, and in particular to a system and method for analyzing ceramic slurry viscosity data after degassing based on sampling testing. Background Art

[0002] With the continuous progress of modern manufacturing industry, the application of ceramic materials in the fields of electronics, aviation and biomedical high technology is increasing. Ceramic slurry is the basis for the preparation of these materials, and its performance directly affects the quality of the final product. The degassing treatment of ceramic slurry is one of the key steps to ensure its performance, and the viscosity control after degassing is the core parameter that determines the application performance of the slurry.

[0003] However, traditional degassing and viscosity testing methods have many limitations. First, in the production process of ceramic slurry, in order to achieve the specified viscosity requirements, the traditional process requires degassing in a vacuum environment. During the whole process, multiple manual sampling tests are required to ensure that the viscosity of the slurry meets the process requirements. This frequent sampling test is not only time-consuming and labor-intensive, but also affects product quality and production efficiency due to frequent sampling. Secondly, it is inconvenient to use a viscometer to confirm the viscosity of the ceramic slurry in the degassing tank during the production process. Each sampling requires suspending degassing and restoring from a vacuum state to normal pressure. In addition, each sampling causes product crusting and slurry waste, and cleaning the sample port will also cause pollution. Summary of the invention

[0004] The object of the present invention is to provide a system and method for analyzing the viscosity data of ceramic slurry after degassing based on sampling test, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ceramic slurry post-degassing viscosity data analysis system based on sampling testing, the system comprising: a slurry parameter acquisition module, a curve chart module, a data management module and a feedback and control module, the slurry parameter acquisition module is used to obtain the solvent loss through the mass change of the degassing tank, and obtain the viscosity, solid content and density data of the ceramic slurry through sensors, the data management model is responsible for storing and managing all collected data, the curve chart module performs fitting calculations between viscosity, solid content, density and solvent loss based on the collected data, generates a corresponding curve chart, and predicts and analyzes the slurry parameters, and the feedback and control module issues an early warning when the viscosity, solid content or density exceeds the normal range during the ceramic slurry degassing process by setting thresholds and real-time monitoring.

[0006] Furthermore, the slurry parameter collection module includes a viscosity collection unit, a solid content collection unit, a density collection unit and a solvent loss collection unit. After the slurry degassing starts, the degassing tank is weighed as a whole and the values ​​are recorded every 10 minutes, and the solvent loss is calculated. At the same time, samples are taken for viscosity test, solid content test and density test to obtain the slurry viscosity, solid content and density.

[0007] Further, the slurry is preferably composed of ceramic powder, binder, dispersant and organic solvent; the ceramic powder includes one or more of aluminum oxide, silicon nitride, magnesium oxide and yttrium oxide; the binder is preferably polyvinyl butyral; the dispersant includes one or more of fish oil and castor oil; the organic solvent includes one or more of isopropanol, n-butanol, ethyl acetate and butyl acetate; based on the total mass of the ceramic powder, the mass percentages of the ceramic powder, binder and dispersant are preferably 92%-95%, 10%-16% and 1%-3% respectively. The mass percentage of the organic solvent in the ceramic slurry is preferably 65%-85%.

[0008] Furthermore, the curve chart module includes a curve chart drawing unit and an analysis curve chart unit. The curve chart drawing unit calculates according to the solvent loss at the end of each degassing cycle, with the solvent loss as the horizontal coordinate and the slurry viscosity, slurry solid content and slurry density at the end of each degassing cycle as the vertical coordinate, and obtains the fitting curves of solvent loss-slurry viscosity, solvent loss-slurry solid content and solvent loss-slurry density through linear fitting. The analysis curve chart unit is used to obtain the viscosity, solid content and density of the slurry during the degassing process according to the fitting curve when the pulping process and the degassing process are not changed. The preparation method of the ceramic slurry preferably includes the following steps: first, stirring and mixing the binder and part of the organic solvent to obtain a uniform glue solution; secondly, ball-milling the remaining organic solvent with the ceramic powder and dispersant to obtain a mixed solution; finally, ball-milling the mixed solution with the glue to obtain the ceramic slurry. The preferred conditions are: the ball milling mixing speed is preferably 50-60r / mi n; The ball milling time for ceramic powder dispersion is preferably 120-180min. After the glue solution and the mixed solution are ball milled and mixed, a filter screen is used for filtration; and the mesh number of the screen is preferably 200 meshes. The specific execution steps of the slurry process and the degassing process are as follows: Step 1: weigh the empty tank of the 30℃ constant temperature degassing tank and record; Step 2: weigh the slurry loaded in the 30℃ constant temperature degassing tank, and take samples to test the initial viscosity, initial solid content, and initial slurry density; Step 3: weigh the 30℃ constant temperature degassing tank every 10 minutes during the degassing process Weigh once per minute and take samples to test viscosity, solid content and slurry density; Step 4: 30℃ constant temperature degassing tank, after degassing, weigh and take samples to test final viscosity, solid content and density; Step 5: Record and complete steps 1 to 4 for more than 3 times, and draw the curve in Origin; Step 6: Get the functional relationship between weight and viscosity, solid content and density in the degassing process of the degassing tank by fitting the curve; Step 7: 30℃ constant temperature degassing tank, calculate the viscosity value at the end of degassing by weight change for verification.

[0009] Furthermore, the feedback and control module includes a threshold setting unit and an early warning unit. The threshold setting unit determines the normal range of viscosity, solid content and density of the ceramic slurry according to production requirements and process standards. The early warning unit calculates the viscosity, solid content and density of the slurry during the degassing process by fitting the curve, and compares them with the range of the threshold setting unit in real time. When it is detected that the viscosity, solid content or density exceeds the set range, the system triggers an early warning.

[0010] The method for analyzing the viscosity data of ceramic slurry after degassing based on sampling test includes the following steps:

[0011] S1: Take the ceramic slurry produced in batch Q as the standard sample, weigh the mass of the empty degassing tank before the ceramic slurry is transferred into the degassing tank, and weigh the entire weight after the ceramic slurry is transferred into the degassing tank, so as to calculate the mass of the slurry added into the degassing tank; take samples to test the initial viscosity, initial slurry solid content and initial slurry density of the slurry, where Q represents the batch of ceramic slurry produced, and the sampling weight is negligible compared with the total slurry mass;

[0012] S2: After the degassing of the slurry begins, the degassing tank is weighed as a whole at the set time interval and the values ​​are recorded. At the same time, samples are taken for viscosity test, solid content test and density test. The above operation is repeated until the degassing is completed;

[0013] S3: Calculate the solvent loss at the end of each degassing cycle, take the solvent loss as the horizontal coordinate, and take the slurry viscosity, slurry solid content and slurry density at the end of each degassing cycle as the vertical coordinate to obtain the solvent loss-slurry viscosity, solvent loss-slurry solid content and solvent loss-slurry density fitting curves.

[0014] Further, in step S2: the set of slurry viscosities output by different sensors is obtained as {η1, η2, ..., η n}, the slurry solid content data set is {C1,C2,...,C n}, the slurry density data set is {ρ1,ρ2,...,ρ n}, the solvent loss data set is {W1,W2,...,W n}, where η1 represents the initial viscosity obtained, η n represents the obtained nth slurry viscosity, C1 represents the obtained initial slurry solid content, C n represents the solid content of the nth slurry obtained, ρ1 represents the initial slurry density obtained, ρ n represents the nth slurry density obtained, W1 represents the overall weighing and recording of the degassing tank at the set time interval, and the first solvent loss is calculated, W n It represents the calculated nth solvent loss, and n represents the number of data recorded at the specified time interval. By detecting the viscosity, solid content, density and solvent loss of the slurry, we can fully understand the changes in the physical properties of the slurry during the degassing process.

[0015] Further, in step S3: the calculation formula of the fitting function between the solvent loss and the slurry viscosity is as follows:

[0016]

[0017] Among them, W i represents the solvent loss amount obtained for the i-th time, W avgrepresents the average value of solvent loss, α1 represents the fitting parameter, and β1 represents the weighting coefficient, which is used to reflect the nonlinear degree of the change of slurry viscosity with solvent loss;

[0018] The calculation formula of the solvent loss-slurry solid content fitting function is as follows:

[0019]

[0020] Among them, α2 controls the amplitude of solid content growth and determines the rising rate of the curve, λ controls the response speed of solvent loss to solid content, β2 is used to adjust the nonlinear relationship between solid content and solvent loss, and γ represents the high-order effect of solvent loss on solid content change.

[0021] The calculation formula of the solvent loss-slurry density fitting function is as follows:

[0022] ρ(W i )=ρ1+α3*W+β3*W 2 +k*W 3 ;

[0023] Among them, α3 represents the initial change rate of density with solvent loss, β3 represents the nonlinear change trend of density with solvent loss, k is the fitting coefficient, which represents the change amplitude of density in the fitting curve. Through the fitting function, the viscosity, solid content and density of the slurry can be calculated and analyzed according to different solvent loss, so as to realize real-time control of product quality.

[0024] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0025] 1. After the linear fitting of slurry data analysis, there is no need to conduct viscosity / solid content testing for subsequent slurry production.

[0026] 2. Ensure product quality by avoiding contact with air and residual slurry at the interface to prevent the retention of micron-sized particles. Maximize the slurry flow rate and avoid wasting time on testing.

[0027] 3. It is convenient for operators to operate and reduces the workload of operators.

[0028] 4. Reduce time cost. There is no need to wait for a long time to take samples and then conduct viscosity testing. The time to recover from high vacuum conditions to 1 atmosphere and then conduct testing can be omitted, and the degassing process is more consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of a ceramic slurry viscosity data analysis system after degassing based on sampling test of the present invention;

[0030] Figure 2It is a flow chart of the viscosity data analysis method of the ceramic slurry after degassing based on sampling test of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 2 As shown, the present invention provides a technical solution: a ceramic slurry post-degassing viscosity data analysis system based on sampling testing, the system comprising: a slurry parameter acquisition module, a curve chart module, a data management module and a feedback and control module, the slurry parameter acquisition module is used to obtain the solvent loss through the mass change of the degassing tank, and obtain the viscosity, solid content and density data of the ceramic slurry through the sensor, the data management model is responsible for storing and managing all collected data, the curve chart module performs fitting calculations between the viscosity, solid content, density and solvent loss based on the collected data, generates a corresponding curve chart, and predicts and analyzes the slurry parameters, and the feedback and control module issues an early warning when the viscosity, solid content or density exceeds the normal range during the ceramic slurry degassing process by setting thresholds and real-time monitoring.

[0033] The slurry parameter collection module includes a viscosity collection unit, a solid content collection unit, a density collection unit and a solvent loss collection unit. After the slurry degassing starts, the degassing tank is weighed as a whole and the values ​​are recorded every 10 minutes, and the solvent loss is calculated. At the same time, samples are taken for viscosity test, solid content test and density test to obtain the slurry viscosity, solid content and density.

[0034] The slurry is preferably composed of ceramic powder, binder, dispersant and organic solvent; the ceramic powder includes one or more of aluminum oxide, silicon nitride, magnesium oxide and yttrium oxide; the binder is preferably polyvinyl butyral; the dispersant includes one or more of fish oil and castor oil; the organic solvent includes one or more of isopropanol, n-butanol, ethyl acetate and butyl acetate; based on the total mass of the ceramic powder, the mass percentages of the ceramic powder, binder and dispersant are preferably 92%-95%, 10%-16% and 1%-3% respectively. The mass percentage of the organic solvent in the ceramic slurry is preferably 65%-85%.

[0035] The curve chart module includes a curve chart drawing unit and an analysis curve chart unit. The curve chart drawing unit calculates according to the solvent loss at the end of each degassing cycle, with the solvent loss as the horizontal coordinate and the slurry viscosity, slurry solid content and slurry density at the end of each degassing cycle as the vertical coordinate. The fitting curves of solvent loss-slurry viscosity, solvent loss-slurry solid content and solvent loss-slurry density are obtained through linear fitting. The analysis curve chart unit is used to obtain the viscosity, solid content and density of the slurry during the degassing process according to the fitting curve when the pulping process and the degassing process are not changed. The preparation method of the ceramic slurry preferably includes the following steps: first, stirring and mixing the binder and part of the organic solvent to obtain a uniform glue solution; secondly, ball-milling the remaining organic solvent with the ceramic powder and the dispersant to obtain a mixed solution; finally, ball-milling the mixed solution with the glue to obtain the ceramic slurry. The preferred conditions are: the ball milling mixing speed is preferably 50-60r / min; The ball milling time for the dispersion of the ceramic powder is preferably 120-180 minutes. After the glue solution and the mixed solution are ball milled and mixed, they are filtered using a filter screen; and the mesh number of the screen is preferably 200 meshes. The specific execution steps of the slurry process and the degassing process are as follows: Step 1: weigh the empty tank of the 30°C constant temperature degassing tank and record; Step 2: weigh the slurry loaded in the 30°C constant temperature degassing tank, and take samples to test the initial viscosity, initial solid content, and initial slurry density; Step 3: weigh the 30°C constant temperature degassing tank every 10 minutes during the degassing process Weigh once and take samples to test viscosity, solid content, and slurry density; Step 4: 30℃ constant temperature degassing tank, after degassing, weigh and take samples to test final viscosity, solid content, and density; Step 5: Record the completion of steps 1 to 4 more than 3 times, and draw the curve in Origin; Step 6: Get the functional relationship between weight and viscosity, solid content, and density in the degassing process of the degassing tank by fitting the curve; Step 7: 30℃ constant temperature degassing tank, calculate the viscosity value at the end of degassing by weight change for verification.

[0036] The feedback and accusation module includes a threshold setting unit and an early warning unit. The threshold setting unit determines the normal range of viscosity, solid content and density of the ceramic slurry according to production requirements and process standards. The early warning unit calculates the viscosity, solid content and density of the slurry during the degassing process by fitting the curve, and compares them with the range of the threshold setting unit in real time. When it is detected that the viscosity, solid content or density exceeds the set range, the system triggers an early warning.

[0037] The method for analyzing the viscosity data of ceramic slurry after degassing based on sampling test includes the following steps:

[0038] S1: Take the ceramic slurry produced in batch Q as the standard sample, weigh the mass of the empty degassing tank before the ceramic slurry is transferred into the degassing tank, and weigh the entire weight after the ceramic slurry is transferred into the degassing tank, so as to calculate the mass of the slurry added into the degassing tank; take samples to test the initial viscosity, initial slurry solid content and initial slurry density of the slurry, where Q represents the batch of ceramic slurry produced, and the sampling weight is negligible compared with the total slurry mass;

[0039] S2: After the degassing of the slurry begins, the degassing tank is weighed as a whole at the set time interval and the values ​​are recorded. At the same time, samples are taken for viscosity test, solid content test and density test. The above operation is repeated until the degassing is completed;

[0040] S3: Calculate the solvent loss at the end of each degassing cycle, take the solvent loss as the horizontal coordinate, and take the slurry viscosity, slurry solid content and slurry density at the end of each degassing cycle as the vertical coordinate to obtain the solvent loss-slurry viscosity, solvent loss-slurry solid content and solvent loss-slurry density fitting curves.

[0041] In step S2: the set of slurry viscosities output by different sensors is obtained as {η1, η2, ..., η n}, the slurry solid content data set is {C1,C2,...,C n}, the slurry density data set is {ρ1,ρ2,...,ρ n}, the solvent loss data set is {W1,W2,...,W n}, where η1 represents the initial viscosity obtained, η n represents the obtained nth slurry viscosity, C1 represents the obtained initial slurry solid content, C n represents the solid content of the nth slurry obtained, ρ1 represents the initial slurry density obtained, ρ n represents the nth slurry density obtained, W1 represents the overall weighing and recording of the degassing tank at the set time interval, and the first solvent loss is calculated, W n It represents the calculated nth solvent loss, and n represents the number of data recorded at the specified time interval. By detecting the viscosity, solid content, density and solvent loss of the slurry, we can fully understand the changes in the physical properties of the slurry during the degassing process.

[0042] In step S3: the fitting function calculation formula between the solvent loss and the slurry viscosity is as follows:

[0043]

[0044] Among them, W i represents the solvent loss amount obtained for the i-th time, W avgrepresents the average value of solvent loss, α1 represents the fitting parameter, and β1 represents the weighting coefficient, which is used to reflect the nonlinear degree of the change of slurry viscosity with solvent loss;

[0045] The calculation formula of the solvent loss-slurry solid content fitting function is as follows:

[0046]

[0047] Among them, α2 controls the amplitude of solid content growth and determines the rising rate of the curve, λ controls the response speed of solvent loss to solid content, β2 is used to adjust the nonlinear relationship between solid content and solvent loss, and γ represents the high-order effect of solvent loss on solid content change.

[0048] The calculation formula of the solvent loss-slurry density fitting function is as follows:

[0049] ρ(W i )=ρ1+α3*W+β3*W 2 +k*W 3 ;

[0050] Among them, α3 represents the initial change rate of density with solvent loss, β3 represents the nonlinear change trend of density with solvent loss, k is the fitting coefficient, which represents the change amplitude of density in the fitting curve. Through the fitting function, the viscosity, solid content and density of the slurry can be calculated and analyzed according to different solvent loss, so as to realize real-time control of product quality.

[0051] In the embodiment: during the degassing process of the ceramic slurry, the slurry viscosity set obtained from different sensors is {2099, 2558, 3196, 3879, 5100}, the slurry solid content data set is {55.0, 55.5, 56.2, 57.0, 57.6}, the slurry density data set is {1.395, 1.396, 1.397, 1.398, 1.399}, the solvent loss data set is {0, 500, 1000, 1500, 2000}, and the initial ceramic slurry viscosity is 2099 Pa.s, the initial solid content is 55.0%, and the initial density is 1.395 g / cm 3, the initial solvent loss is 0g, and the normal range of viscosity is set to 2000-5200Pa.s. According to the changes between slurry viscosity and solvent loss, the solvent loss-slurry viscosity fitting function is fitted. According to the changes between slurry solid content and solvent loss, the solvent loss-slurry solid content is fitted. According to the changes between slurry density and solvent loss, the solvent loss-slurry density fitting curve is fitted. The solvent loss data at the current moment is brought into the solvent loss-slurry viscosity fitting function to obtain the current slurry viscosity of 6700Pa.s, and compared with the set normal range of ceramic slurry in real time. When it is detected that the viscosity exceeds the set range, the system triggers an early warning.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A ceramic slurry viscosity data analysis system after degassing based on sampling test, characterized in that: The system includes: a slurry parameter acquisition module, a curve chart module, a data management module and a feedback and control module. The slurry parameter acquisition module is used to obtain the solvent loss through the mass change of the degassing tank, and obtain the viscosity, solid content and density data of the ceramic slurry through sensors. The data management model is responsible for storing and managing all collected data. The curve chart module performs fitting calculations between viscosity, solid content, density and solvent loss based on the collected data, generates a corresponding curve chart, and predicts and analyzes the slurry parameters. The feedback and control module issues an early warning when the viscosity, solid content or density exceeds the normal range during the ceramic slurry degassing process by setting thresholds and real-time monitoring.

2. The ceramic slurry viscosity data analysis system after degassing based on sampling test according to claim 1 is characterized in that: The slurry parameter collection module includes a viscosity collection unit, a solid content collection unit, a density collection unit and a solvent loss collection unit. After the degassing of the ceramic slurry begins, the degassing tank is weighed as a whole and the values ​​are recorded at set time intervals, and the solvent loss is calculated. At the same time, samples are taken for viscosity testing, solid content testing and density testing to obtain the slurry viscosity, solid content and density.

3. The ceramic slurry post-degassing viscosity data analysis system based on sampling test according to claim 2, characterized in that: The ceramic slurry is preferably composed of ceramic powder, a binder, a dispersant and an organic solvent; the ceramic powder includes one or more of aluminum oxide, silicon nitride, magnesium oxide and yttrium oxide; the binder is preferably polyvinyl butyral; the dispersant includes one or more of fish oil and castor oil; the organic solvent includes one or more of isopropanol, n-butanol, ethyl acetate and butyl acetate.

4. The ceramic slurry viscosity data analysis system after degassing based on sampling test according to claim 1, characterized in that: The curve chart module includes a curve chart drawing unit and an analysis curve chart unit. The curve chart drawing unit calculates according to the solvent loss at the end of each degassing cycle, with the solvent loss as the horizontal coordinate and the slurry viscosity, slurry solid content and slurry density at the end of each degassing cycle as the vertical coordinate, and obtains the fitting curves of solvent loss-slurry viscosity, solvent loss-slurry solid content and solvent loss-slurry density through linear fitting. The analysis curve chart unit is used to obtain the viscosity, solid content and density of the slurry during the degassing process according to the fitting curves when the pulping process and the degassing process are not changed.

5. The ceramic slurry post-degassing viscosity data analysis system based on sampling test according to claim 1, characterized in that: The feedback and control module includes a threshold setting unit and an early warning unit. The threshold setting unit determines the normal range of viscosity, solid content and density of the ceramic slurry according to production requirements and process standards. The early warning unit calculates the viscosity, solid content and density of the slurry during the degassing process by fitting the curve, and compares them with the range of the threshold setting unit in real time. When it is detected that the viscosity, solid content or density exceeds the set range, the system triggers an early warning.

6. A method for analyzing viscosity data after degassing of a ceramic slurry based on sampling test, comprising the following steps: S1: Take the ceramic slurry produced in batch Q as the standard sample, weigh the mass of the empty degassing tank before the ceramic slurry is transferred into the degassing tank, and weigh the entire weight after the ceramic slurry is transferred into the degassing tank, so as to calculate the mass of the slurry added into the degassing tank; take samples to test the initial viscosity, initial slurry solid content and initial slurry density of the slurry, where Q represents the batch of ceramic slurry produced, and the sampling weight is negligible compared with the total slurry mass; S2: After the degassing of the slurry begins, the degassing tank is weighed as a whole at the set time interval and the values ​​are recorded. At the same time, samples are taken for viscosity test, solid content test and density test. The above operation is repeated until the degassing is completed; S3: Calculate the solvent loss at the end of each degassing cycle, take the solvent loss as the horizontal coordinate, and take the slurry viscosity, slurry solid content and slurry density at the end of each degassing cycle as the vertical coordinate to obtain the solvent loss-slurry viscosity, solvent loss-slurry solid content and solvent loss-slurry density fitting curves.

7. The method for analyzing viscosity data of ceramic slurry after degassing based on sampling test according to claim 6, characterized in that: In step S2: the set of slurry viscosities output by different sensors is obtained as {η1, η2, ..., η n }, the slurry solid content data set is {C1,C2,...,C n }, the slurry density data set is {ρ1,ρ2,...,ρ n }, the solvent loss data set is {W1,W2,...,W n }, where η1 represents the initial viscosity obtained, η n represents the obtained nth slurry viscosity, C1 represents the obtained initial slurry solid content, C n represents the solid content of the nth slurry obtained, ρ1 represents the initial slurry density obtained, ρ n represents the nth slurry density obtained, W1 represents the overall weighing and recording of the degassing tank at the set time interval, and the first solvent loss is calculated, W n It indicates the calculated solvent loss for the nth time, where n indicates the number of data recorded at the specified time interval.

8. The method for analyzing viscosity data of ceramic slurry after degassing based on sampling test according to claim 6, characterized in that: In step S3: the fitting function calculation formula between the solvent loss and the slurry viscosity is as follows: Among them, W i represents the solvent loss amount obtained for the i-th time, W avg represents the average value of solvent loss, α1 represents the fitting parameter, and β1 represents the weighting coefficient, which is used to reflect the nonlinear degree of the change of slurry viscosity with solvent loss; The calculation formula of the solvent loss-slurry solid content fitting function is as follows: Among them, α2 controls the amplitude of solid content growth and determines the rising rate of the curve, λ controls the response speed of solvent loss to solid content, β2 is used to adjust the nonlinear relationship between solid content and solvent loss, and γ represents the high-order effect of solvent loss on solid content change. The calculation formula of the solvent loss-slurry density fitting function is as follows: ρ(W i )=ρ1+α3*W+β3*W 2 +k*W 3 ; Among them, α3 represents the initial change rate of density with solvent loss, β3 represents the nonlinear change trend of density with solvent loss, and k is the fitting coefficient, which represents the change amplitude of density in the fitting curve.

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