工艺参数对平板微小器件注塑翘曲影响

徐征; 王继章; 吕治斌; 刘军山; 王林刚

doi:10.3788/OPE.20132107.1825

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工艺参数对平板微小器件注塑翘曲影响

微纳技术与精密机械 | 更新时间：2020-08-12

- 工艺参数对平板微小器件注塑翘曲影响
- Effect of processing parameters on warpage of flat micro-mini parts in injection molding
- 光学精密工程 2013年21卷第7期页码：1825-1830
- 作者机构：
  
  1. 大连理工大学精密与特种加工教育部重点实验室,辽宁大连,116023
  2. 大连理工大学微纳米技术及系统辽宁省重点实验室,辽宁大连,中国,116023
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（基于可交换clifford代数的彩色图像矩不变量研究）();国家863项目();中央高校基本科研业务费专项资金()
- DOI：10.3788/OPE.20132107.1825
  中图分类号： TQ320.662;TN405
- 收稿日期：2013-01-18，
  
  修回日期：2013-03-07，
  
  网络出版日期：2013-07-15，
  
  纸质出版日期：2013-07-15
- 稿件说明：
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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影响[J]. 光学精密工程, 2013,21(7): 1825-1830

. Effect of processing parameters on warpage of flat micro-mini parts in injection molding[J]. Editorial Office of Optics and Precision Engineering, 2013,21(7): 1825-1830
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影响[J]. 光学精密工程, 2013,21(7): 1825-1830 DOI： 10.3788/OPE.20132107.1825.

. Effect of processing parameters on warpage of flat micro-mini parts in injection molding[J]. Editorial Office of Optics and Precision Engineering, 2013,21(7): 1825-1830 DOI： 10.3788/OPE.20132107.1825.

摘要

对显著影响平板微小器件注塑成型的翘曲现象进行了研究。为了减少翘曲量，以带十字微沟槽的微流控芯片的基片为研究对象，研究了注塑工艺涉及的工艺参数。从注塑残余应力角度分析了翘曲变形的产生机理与演化过程。然后，以数值仿真和工艺实验为手段，建立了平板微小器件翘曲的测量方法。设计加工了基于硅型芯的注塑模具，以翘曲测量方法为基础，利用正交试验获得了最优注塑工艺参数。最后，通过极差分析法定量分析工艺参数对翘曲的影响。实验显示，通过工艺优化获得的最小翘曲量为141 m，工艺参数对翘曲的影响由大到小依次为：保压时间、模具温度、保压压力、熔体温度、冷却时间。该研究成果为平板微小器件注塑工艺提供了参考依据。

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 m 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.

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Keywords

references

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