Study on the melting performance of single screw extruder with grooved melting zone and barr screw
Study on the melting performance of single screw extruder with grooved melting zone and barr screw
复制标题
带沟槽熔融区和巴尔螺杆的单螺杆挤出机熔融性能研究
DOI：
10.1016/j.jmatprotec.2014.06.022
复制
发表时间：
2014
影响因子：
6.3
通讯作者：
Dan Yu
中科院分区：
文献类型：
--
作者：
X.;M. Jia;P. Xue;Junjie Cai;L. Pan;Dan Yu
建立了单螺杆挤出机槽道熔融区和Barr螺杆的熔融机理。槽形给料区的整体固塞主要通过改变槽形熔化区螺槽和筒槽的体积而破裂和熔化。构建了一种新型液压翻壳式单螺杆挤出机平台，研究了不同组合的螺杆和筒体的熔融性能。通过实验对熔化模型进行了验证。与常规单螺杆挤出机相比，槽型单螺杆挤出机的熔融开始时间较早，熔融长度较短。槽形熔融区提高了熔融效率，Barr螺杆提高了熔融稳定性。能量无量纲分析表明，对流换热和粘性耗散是槽型单螺杆挤出机的主要熔融热源。
A novel melting mechanism for single screw extruder with grooved melting zone and barr screw was established. The whole solid-plug, which came from the grooved feed zone, was ruptured and melted mainly by continuously changing the volume of the screw channels and the barrel grooves in the grooved melting zone. A new single screw extruder platform with hydraulic-clamshell type barrels was constructed to investigate the melting performance of different combinations of barrels and screws. The melting model was verified by experiments. Compared with conventional single screw extruder, the melting started earlier and the melting length was shorter in the single screw extruder with grooved melting zone. The melting efficiency was improved by the grooved melting zone and the melting stability was improved by the barr screw. The dimensionless analysis of energy indicates that the heat convection and viscous dissipation are the main melting heat sources for the single screw extruder with grooved melting zone.