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Effect of the axial vibration of screw on residence time distribution in single‐screw extruders
Author(s) -
Qu Jinping,
Feng Yanhong,
He Hezhi,
Jin Gang,
Cao Xianwu
Publication year - 2006
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20457
Subject(s) - residence time distribution , materials science , vibration , residence time (fluid dynamics) , plastics extrusion , mixing (physics) , axial symmetry , distribution (mathematics) , composite material , mechanics , mechanical engineering , structural engineering , flow (mathematics) , engineering , acoustics , mathematics , physics , geotechnical engineering , mathematical analysis , quantum mechanics
An analytic model has been developed to analyze the residence time distribution of melt in the screw channel of the melt conveying section in a novel extruder of which the screw can vibrate axially. A comparison of the residence time distribution of melt in screw channel with and without vibration shows that the residence time of melt increases with the apply of vibration and the larger the vibration frequency and amplitude are, the longer time it will take the melt to travel through the melt conveying section, which is in favor of the improvement of the effect of melt mixing. POLYM. ENG. SCI. 46:198–204, 2006. © 2005 Society of Plastics Engineers