Development of a nozzle capillary viscometer for inline viscosity measurement of thermoplastics

被引：4

作者：

Wappler, Peter ^{[1
]}

Horter, Tim ^{[1
]}

Kulkarni, Romit ^{[1
]}

Guenther, Thomas ^{[1
,2
]}

Fritz, Karl-Peter ^{[1
]}

Zimmermann, Andre ^{[1
,2
]}

机构：

[1] Hahn Schickard, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Micro Integrat IFM, D-70569 Stuttgart, Germany

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2022年 / 122卷 / 01期

关键词：

Thermoplastic injection molding; Inline rheometer; Viscosity; Nozzle capillary viscometer; Steady state simulation; Integration boundary influences; INJECTION-MOLDING MACHINE; FLOW;

D O I：

10.1007/s00170-021-08394-4

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Todays continuous improvement and advancement in the injection molding process for plastics allow for increasing reliability of the process parameter control, whereas the fluctuations of the material properties still present a great challenge. To compensate for these fluctuations, a nozzle capillary rheometer is developed with the aim to determine the viscosity inline during the injection process in series production applications. An essential part of this work is the signal processing and the definition of a suitable integration boundary to ensure a reliable signal evaluation. In addition, based on mathematical modeling and established correction factors, it is possible to determine the effective viscosity accurately without the need to replace the capillary channel according to the Bagley correction.

引用

页码：105 / 116

页数：12

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