提高混炼胶门尼粘度预测精度的研究

Study on raising prediction precision of viscosity of mixing rubber

根据密炼机橡胶混炼过程的瞬时功率控制法，运用数理统计法建立的混炼胶门尼粘度数学模型，其预测精度值不稳定。为了提高预测精度，采取了排除异常值、优选数学模型和确定样本数等措施。使用散点图很容易发现异常值的存在。用排胶点瞬时功率可以预测胎面（内胎）混炼胶门尼粘度。２０个试样的数学模型可达到需要的预测精度。载重轮胎厂应用本法的生产实践表明，混炼胶门尼粘度的预测值与实测值的差值的平均值仅为０．４０～０．８４。

The mathematical model for the prediction of viscosity of mixing rubber was found by statistics,but its precision was unsteady.It was possible to make the precision up to requirements by the elimination of abnormal samples,the optimization of mathematical models and the confirmation of the amount of the source data.The scatter polt could tell the different values easily.It could forecast the viscosity of mixing rubber for tread and tube.Twenty groups of sample could meet the requirement and the practice showed the average deviation between calculation and observation of viscosity was only 0.40～0.84.