8号液力传动油低温表观黏度的相关性研究

STUDY ON CORRELATION OF LOW TEMPERATURE APPARENT VISCOSITYOF No. 8 HYDRAULIC TRANSMISSION OIL

为满足8号液力传动油精益生产的需要,实现调合中控室对8号液力传动油低温表观黏度的预测与把控,通过不同原材料制备的8号液力传动油的物理性能与低温表观黏度的相关性研究,利用响应曲面法和Design-expert 12.0软件进一步研究密度、黏度指数、运动黏度与低温表观黏度的相关性,掌握低温表观黏度的变化规律,建立低温表观黏度预测模型。结果表明:8号液力传动油的运动黏度(A)、黏度指数(B)、20℃密度(C)与低温表观黏度(Y)的相关性高,拟合得到低温表观黏度回归方程:Y=2032.74+123.28 A-1142.98 B+574.01 C+680.72 AB-1294.84 AC-1091.62 BC,经过8个批次不同原材料生产的8号液力传动油的应用验证,低温表观黏度预测值与实测值基本一致,回归方程模型的可靠性高。

In order to meet the needs of the lean production of No.8 hydraulic transmission oil and achieve the prediction and control of the low temperature apparent viscosity of No.8 hydraulic transmission oil in the blending control room,the correlation between the physical properties and the low-temperature apparent viscosity of No.8 hydraulic transmission oil prepared from different raw materials was studied.In order to grasp the change rule of apparent viscosity at low temperature and establish a prediction model of apparent viscosity at low temperature,the correlation between density,viscosity index,kinematic viscosity and low-temperature apparent viscosity was further studied by using the response surface methodology and Design-expert 12.0 software.The results showed that the kinematic viscosity(A),viscosity index(B)and 20℃density(C)of No.8 hydraulic transmission oil had a high correlation with low-temperature apparent viscosity(Y).After fitting,the regression equation of apparent viscosity at low temperature was obtained:Y=2032.74+123.28 A-1142.98 B+574.01 C+680.72 AB-1294.84 AC-1091.62 BC,which was verified by the application of No.8 hydraulic transmission oil produced by 8 batches of different raw materials,the predicted value of apparent viscosity at low temperature was basically consistent with the measured value,and the reliability of the regression equation model was high.