对塑料发泡膨胀过程中气相热动力行为的研究

THE STUDY OF BUBBLE OSCILLATION IN THE PROCESS OF PLASTIC FOAMING EXPANDING

建立了气泡膨胀过程、气相气体的热动力学方程 ,采用摄动法处理这些方程组 ,得出了气泡膨胀过程气相控制方程 ,建立了 R、R和 pg 及各影响参数之间的关系式 ,给工程应用提供了理论依据。

Thermal dynamical equation of gas of gas phase in the process of bubble expanding was set up. Perturbation method was adopted to handle the equations. Controlling equation of gas were derived. The relation formulation among R, and p g was set up and the relation among parameters was showed to supply theoretical basic for researching bubble expanding.