中国塑料

中国塑料 ›› 2009, Vol. 23 ›› Issue (02): 61-64 .DOI: 10.19491/j.issn.1001-9278.2009.02.014

• 加工与应用 • 上一篇    下一篇

基于制品体收缩率的多型腔注塑模工艺参数优化

赵建   

  1. 大连工业大学化工与材料学院 ， 辽宁 大连 116034
  • 收稿日期:2008-11-06 修回日期:1900-01-01 出版日期:2009-02-26 发布日期:2009-02-26

Process Optimization in Multi-Cavity Injection Molds Based on Volumetric Shrinkage

ZHAOJian   

  1. School of Chemistry Engineer & Material , Dalian Polytechnic University , Dalian 116034 , China
  • Received:2008-11-06 Revised:1900-01-01 Online:2009-02-26 Published:2009-02-26
  • Contact: ZHAOJian

摘要： 选用L27(313)正交表设计实验，研究模具温度、熔体温度、充填时间、保压压力和保压时间以及三个两因素交互作用对多型腔模具PP塑料制品每个型腔体收缩率的影响程度。对于所选参数，模具温度和保压时间对体收缩率的影响是高度显著的，熔体温度和保压压力对体收缩率的影响是显著的。在优化工艺组合下体收缩率降低了21.46％。

关键词: 多型腔注塑模, 工艺优化, 体收缩率

Abstract: L27(313) experiments were performed in order to determine an optimum condition for minimizing the volumetric shrinkage in multi-cavity injection molding part of polypropylene (PP). It showed that the mold temperature and packing time had the greatest influence on the volumetric shrinkage. Based on a standard analysis of variance(ANOVA), it was found that the relative significance of the factors on the volumetric shrinkage was in the descending order: packing time, mold temperature, melt temperature, and packing pressure. Using the optimized level of factors, the volumetric shrinkage was decreased by 21.46％.

Key words: multi-cavity injection molds, process optimum, volumetric shrinkage

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