Fundamentals of plasticating extrusion. I. A theoretical model for melting
Fundamentals of plasticating extrusion. I. A theoretical model for melting
复制标题
塑化挤出的基础知识。
DOI：
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发表时间：
1966
期刊：
影响因子：
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通讯作者：
Z. Tadmor
中科院分区：
文献类型：
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作者：
Z. Tadmor
一个稳态模型的熔融在螺杆挤出机已被开发的基础上的假设，即一个稳定的固体床的聚合物颗粒被熔化的热量，是从一个热的桶和热，所产生的粘性耗散的膜分离的固体床和桶的表面。随着固体床在通道中前进，固体床的宽度逐渐减小，直到固体床消失，此时熔化终止。该模型预测固体床的宽度分布和所需的长度的熔化的物理性质，操作条件和几何形状的螺杆。该模型已被测试的基础上的实验数据。
A steady state model for melting in a screw extruder has been developed based on the assumption that a stable solid bed of polymer granules is melted by heat that is conducted from a hot barrel and heat that is generated by viscous dissipation in the film that separates the solid bed and the surface of the barrel. The solid bed gradually decreases in width, as it proceeds in the channel, until it disappears at which point the melting is terminated. The model predicts the solid bed width profile and the required length of melting in terms of physical properties, operating conditions, and geometry of the screw. The model has been tested based on experimental data.