基于熔体黏度均匀性的注塑螺杆性能评价方法

金艳; 何亚东; 信春玲; 周雅文; 李庆春; 吴大鸣

北京化工大学学报(自然科学版) ›› 2010, Vol. 37 ›› Issue (6) : 126-130.

PDF(1073 KB)
欢迎访问北京化工大学学报(自然科学版),今天是 2025年4月4日 星期五
Email Alert  RSS
PDF(1073 KB)
北京化工大学学报(自然科学版) ›› 2010, Vol. 37 ›› Issue (6) : 126-130.
机电工程与科学技术

基于熔体黏度均匀性的注塑螺杆性能评价方法

  • 金艳; 何亚东; 信春玲; 周雅文; 李庆春; 吴大鸣
作者信息 +

Meltviscosity homogeneity for performance evaluation of injection molding screw

  • JIN Yan; HE YaDong; XIN ChunLing; ZHOU YaWen; LI QingChun; WU DaMing
Author information +
文章历史 +

摘要

通过理论推导和实验验证,开发了一种简便易行的测量注塑过程中熔体黏度均匀性的方法,即通过高速采集和分析塑化熔体流经注塑机喷嘴处的压力波动来反映塑化熔体的黏度波动。通过对4根不同结构类型及参数的注塑螺杆进行实验,分析螺杆构型对熔体黏度波动的影响,及熔体黏度均匀性与熔体温度均匀性、制品的质量重复精度及力学性能的关系,验证了该方法的可行性,最后从熔体黏度均匀性方面对实验用4根螺杆性能予以评价。

Abstract

Through theoretical analysis and experimental verification, a simple method that measuring melt pressure fluctuation at the nozzle to reflect melt viscosity fluctuation in injection molding process was developed. The experiments for four injection screws and analysis for the relationships between melt viscosity homogeneity and screws configuration, melt temperature homogeneity, repeating weight precision and mechanical properties of the injection molding parts verified the feasibility of the method. At last, the four injection screws were evaluated based on melt viscosity homogeneity.

引用本文

导出引用
金艳; 何亚东; 信春玲; 周雅文; 李庆春; 吴大鸣. 基于熔体黏度均匀性的注塑螺杆性能评价方法[J]. 北京化工大学学报(自然科学版), 2010, 37(6): 126-130
JIN Yan; HE YaDong; XIN ChunLing; ZHOU YaWen; LI QingChun; WU DaMing. Meltviscosity homogeneity for performance evaluation of injection molding screw[J]. Journal of Beijing University of Chemical Technology, 2010, 37(6): 126-130

参考文献

[1]Gao F R, Jin Z M, Chen X. A visual barrel system for study of reciprocating screw injection molding[J]. Poly Eng and Sci, 2000, 40(6): 1334-1343.
[2]金志明, 朱复华, 高福荣. 注射成形中的熔体温度均匀性研究[J]. 中国塑料, 2003, 17(3): 88-91.
Jin Z M, Zhu F H, Gao F R. Study on melt temperature homogeneity in injection molding[J]. China Plastics, 2003, 17(3): 88-91. (in Chinese)
[3]Verbraak C P J M, Meijer H E H. Screw design in injection molding[J]. Poly Eng and Sci, 1989, 29(7): 479-487.
[4]Chiu S H, Pong S H. Development of an on-line twin capillary rheometer[J]. Polymer Degradation and Stability, 1999, 64(2): 239-242.
[5]Padmanabhan M, Bhattacharya M. In-line measurement of rheological properties of polymer melts[J]. Rheologica Acta, 1994, 33: 71-87.
[6]Qin X, Thompson M R, Hrymak A N, et al. Rheology studies of polyethylene/chemical blowing agent solutions within an injection molding machine[J]. Poly Eng and Sci, 2005, 45(8): 1108-1118.
[7]陈清培. 基于虚拟仪器的注塑机性能参数测试系统研究[D]. 北京: 北京化工大学机电工程学院, 2009.
Chen Q P. The study of performance parameters test system based on virtualinstrument for plastic injectionmolding machine[D]. Beijing: College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, 2009. (in Chinese)
[8]朱复华. 挤出理论及应用[M]. 北京: 中国轻工业出版社, 2001.
Zhu F H. Extrusion theory and application[M]. Beijing: China Light Industry Press, 2001. (in Chinese)
PDF(1073 KB)

3182

Accesses

0

Citation

Detail

段落导航
相关文章

/