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综述了国内外学者在聚合物螺杆塑化加工过程中的传热特性及强化传热技术研究进展,并提出采用新兴的传热学理论——场协同理论,重新审视聚合物塑化过程对流传热的物理机制,即对流传热的性能不仅取决于流体速度、物性以及流体与壁面温差,还取决于流体速度场与热流场协同的程度。在相同的速度和温度边界条件下,他们的协同程度越好,换热强度越高,换热过程越优。这对指导螺杆塑化系统强化传热及塑化均匀性优化具有较高的参考价值。
In this paper, the heat transfer characteristics and heat transfer enhancement of polymer screw plasticating process by domestic and foreign scholars are reviewed, and a new heat transfer theory - field synergy theory is proposed to reexamine the effect of polymer plasticizing process on circulating The physical mechanism of heat, that is, the performance of convective heat transfer, depends not only on fluid velocity, physical properties, and the temperature difference between the fluid and the wall, but also on the synergy of the fluid velocity field and the thermal flow field. Under the same speed and temperature boundary conditions, the better their degree of synergy, the higher the heat exchange intensity, the better the heat exchange process. This guide screw plasticization system to enhance heat transfer and plasticization uniformity optimization has a higher reference value.