Method for forecasting Mooney viscosity in rubber mixing process

A Mooney viscosity and rubber mixing technology, applied in the field of soft measurement, can solve the problems of inability to integrate nonlinear and time-varying information in time, stay, and inability to meet real-time online control in industrial sites.

Inactive Publication Date: 2010-10-20
ZHEJIANG UNIV
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Problems solved by technology

However, after searching relevant literature such as published patents, it is found that the current inventions are more in the form of offline modeling and only for single output, which cannot timely integrate the nonlinear and time-varying information that constantly appears in the actual production process, and cannot meet the requirements of The demand for real-time online control in industrial sites

Method used

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  • Method for forecasting Mooney viscosity in rubber mixing process
  • Method for forecasting Mooney viscosity in rubber mixing process
  • Method for forecasting Mooney viscosity in rubber mixing process

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Embodiment Construction

[0054] Such as figure 1 Shown, a kind of prediction method of Mooney viscosity in rubber mixing process comprises the following steps:

[0055] (1) Select appropriate process parameters and establish a sample library;

[0056] Since the rubber mixing process involves a wide variety of formulations, different types of internal mixers and mixing processes, it is impossible to establish a single fixed model. It is only feasible to establish different models according to the characteristics of the process to predict the Mooney viscosity. Therefore, this specific embodiment does not consider relatively fixed factors in the rubber mixing process (for example: internal mixer model, master batch / final mixing process, etc.), and the update of the online model is only for possible changes in the rubber mixing process the elements of. During the rubber mixing process, a large amount of industrial field data is generated, such as formula, mixing time, temperature, energy consumption, pr...

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Abstract

The invention discloses a method for forecasting a Mooney viscosity in a rubber mixing process, which comprises the following steps of: establishing an initial off-line model by using a process parameter and a Mooney viscosity accumulated in the process production as a data sample, then applying the off-line model to a practical process line, and acquiring new sample data; if the forecasting error of the model on the new sample exceeds a forecasting error threshold value, judging the sample as a valid sample, and adding the valid sample into the model; performing on-line dynamic update on model parameters; and when the number of the samples in the model exceeds the preset maximum sample number, removing the redundant samples in the model so that the number of the samples of the model is controlled within the maximum sample number. The method continually improves the precision of the model based on the cutting technology, and can effectively control the complexity of the model at the same time; the model has good convergence effect; and the method reduces the calculation quantity of the conventional model, and can provide accurate on-line real-time forecast for the Mooney viscosity in the rubber mixing process.

Description

technical field [0001] The invention relates to the technical field of soft measurement in process production, in particular to a method for forecasting Mooney viscosity during rubber mixing. Background technique [0002] Internal mixer rubber mixing is the first step in the rubber manufacturing process. It refers to the production process of mixing various ingredients into raw rubber in an internal mixer to make a uniform quality of mixed rubber. The rubber mixing process is one of the most basic and important processes in the rubber processing technology, which determines the efficacy of the subsequent rubber manufacturing process and has a considerable impact on the performance of the product. The quality requirements of the rubber compound in the actual industrial production process mainly include: 1. The quality of the rubber material must ensure that the rubber product has good physical and mechanical properties; 2. The rubber material itself must have good processabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/28B29B7/72
Inventor 钱路丰刘毅王伟王海清
Owner ZHEJIANG UNIV
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