中国塑料

中国塑料 ›› 2008, Vol. 22 ›› Issue (11): 66-69 .DOI: 10.19491/j.issn.1001-9278.2008.11.015

• 加工与应用 • 上一篇    下一篇

保压工艺和浇口尺寸对非球面镜头收缩性能影响

胡广洪，徐潇明，杜艳丽，崔振山   

  1. 上海交通大学塑性成形系，上海200030
  • 收稿日期:2008-01-01 修回日期:1900-01-01 出版日期:2008-11-26 发布日期:2008-11-26

Effect of Packing Process and Gate Size on the Shinkage of Aspheric Lens

HU Guang-hong, XU Xiao-ming, DU Yan-li, CUI Zhen-shan   

  1. Department of Plasticity Technology of Shanghai Jiaotong University, Shanghai 200030, China
  • Received:2008-01-01 Revised:1900-01-01 Online:2008-11-26 Published:2008-11-26
  • Contact: HU Guang-hong

摘要： 以非球面光学塑料镜头为研究对象，结合田口实验设计方法对其进行模拟实验，通过对实验数据进行信噪比和方差分析，研究了浇口尺寸、保压压力、保压时间及其三者之间的交互作用对产品体积收缩性能的影响。结果表明，影响非球面镜头收缩性能的因素从大到小依次为：保压压力、浇口尺寸和保压时间；同时研究表明保压压力和浇口尺寸之间的交互作用也是影响产品收缩性能的重要因素之一。最后基于研究所得的最优工艺方案组合，达到了降低了产品体积收缩、提升产品合格率的目的。

关键词: 保压工艺, 浇口尺寸, 收缩, 田口方法

Abstract: An aspheric plastic optical lens is studied by simulation experiment technology and Taguchi experimental method. Through the analysis of S/N ratio and ANOVA methods, the effect of various process parameters on the volumetric shrinkage was investigated. The results showed that the process parameters of effect significance on shrinkage were packing pressure, gate size, and packing time. It also revealed that the interaction between packing pressure and gate size was an important factors to affect the volumetric shrinkage of aspheric lens. Based on the analysis results, the optimized process parameters combination was obtained to reduce the part shrinkage.

Key words: packing process, gate size, shrinkage, taguchi method

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