微孔塑料成型过程中进气流量的确定

Determination of Gas-Injecting Flux During Forming of Microcellular Plastics

在微孔塑料的连续成型过程中 ,一般是采用CO2 、N2 等惰性气体作为发泡剂 ,因此 ,进气流量是微孔塑料成型过程中的一个重要的工艺参数 ,气体注入过多或过少都不能得到微孔塑料。基于Henry定律和理想气体状态方程推导了微孔塑料成型过程中气体进气流量的计算公式 ,为确定微孔塑料成型过程中的气体进气流量提供了依据。

Inert gases such as CO 2 and N 2 are used as foaming agents during the forming of microcellular plastics, so the gas-injecting flux is an important processing parameter, microcellular plastics can not be achieved with too much or too less gas injected. Formulae for calculating gas-injecting flux are given based on Henry law and ideal gas condition equation, they offering a basis for determining the gas-injecting flux during forming of microcellualr plastics.