Abstract:

In order to investigate the influence of vibration parameters on the melting and plasticizing process without interference，a model for the melting process of polymer material under the only impact of a pure vibration force field was developed. Melting mechanism was analyzed，and the mass balance equation，momentum balance equation，energy balance equation and constitutive equation of the melting process under vibration were presented. From complicated theory deduction，an expression of the descending velocity of solid-bed was obtained，which demonstrated that the application of vibration could increase the melting rate. This research can serve as the theoretical basis for polymer processing and equipment design.

摘要：

为了能够清楚、透彻、无干扰地研究振动场对聚合物材料熔融塑化过程的影响，建立了纯振动场作用下聚合物材料熔融塑化过程的物理模型，并对其熔融机理进行了深入的分析，提出了纯振动场作用下熔融过程的连续性方程、动量方程、能量方程以及本构方程，并运用复杂的数学推导，得到了纯振动场作用下聚合物固体床下降速度与振动参数的关系表达式。从公式中可以看出，振动场的引入可以提高熔融速度。本研究将会为聚合物新型成型加工工艺的制定以及成型加工设备的设计提供必要的理论支持。