光学精密工程2013，Vol.21Issue(7)：1825-1830,6.DOI:10.3788/OPE.20132107.1825
工艺参数对平板微小器件注塑翘曲的影响
Effect of processing parameters on warpage of flat micro-mini parts in injection molding
摘要
Abstract
This paper explored the warpage which has significant influence on the quality of inject molding for flat micro-mini parts.To control the warpage to an acceptable level,the warpage of a microfluidics plate with a cross-shaped microchannel was researched and the effect of processing parameters on the warpage was considered in detail.First,the generation mechanism and evolution course of the warpage from injection molding was analyzed based on residual stress.Then,the warpage measurement method was established according to simulation technologies and experimental methods.A Si-core based injection mold was designed and fabricated and the optimum processing parameters were obtained with orthogonal experimental method to achieve the minimum warpage.Finally,the quantitative correlations between the warpage and the processing parameters were investigated by extreme difference analysis.Experimental results indicate that the minimum warpage is 141 μm after optimum processing and the sequence of from strong correlation to weak correlation is:holding time,mold temperature,holding pressure,melting temperature and cooling time.The result is helpful to optimize the injection processing of polymer flat micro-mini parts.关键词
注塑成型/平板微小器件/翘曲/极差分析法Key words
injection molding/flat micro-mini part/warpage/extreme difference analysis分类
化学化工引用本文复制引用
徐征,王继章,吕治斌,刘军山,王林刚..工艺参数对平板微小器件注塑翘曲的影响[J].光学精密工程,2013,21(7):1825-1830,6.基金项目
国家自然科学基金资助项目(No.91023046,No.51075056,No.91023017) （No.91023046,No.51075056,No.91023017）
国家863高技术研究发展计划资助项目(No.2012AA040406) （No.2012AA040406）
中央高校基本科研业务费专项资金资助项目(No.DUT12ZD212) （No.DUT12ZD212）
