Micro injection parts based on cell container

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Micro injection parts based on cell container

更新时间：2025-12-10

- Micro injection parts based on cell container
- CIESC Journal Issue 11, (2010)
- 作者机构：
  
  大连理工大学精密与特种加工教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2010，
  
  Published：05 November 2010
- 稿件说明：
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徐斌. Micro injection parts based on cell container[J]. CIESC Journal, 2010, (11).
DOI：

徐斌. Micro injection parts based on cell container[J]. CIESC Journal, 2010, (11). DOI：

摘要

微尺度聚合物熔体充模流动过程较复杂，涉及影响因素较多，针对微尺度聚合物熔体的充模流动特点，以细胞皿塑件为研究对象，采用变模温、抽真空排气及微细电火花加工技术，设计制造了微注塑模具。基于Taguchi实验设计方法，以高密度聚乙烯(HDPE)和聚甲醛(POM)两种材料研究了工艺参数及其交互作用对微塑件成型质量的影响规律。实验结果表明，对于HDPE材料，模具温度对填充率的影响最大，保压压力次之，熔体温度和保压时间影响相对较小；对于POM材料，熔体温度对填充率的影响最大，保压压力次之，模具温度和保压时间影响相对较小。

Abstract

Microscale polymer melt filling process is complex due to many factors involved. In this paper

depending on the characteristics of microscale filling flow of polymer melt

the micro injection mold for cell container was designed and manufactured with several technologies

including variotherm system

vacuum system and micro-electrical discharge machining (EDM).Based on the Taguchi experimental design method

the process parameters were studied with high-density polyethylene (HDPE) and polyoxymethylene (POM)

and their interactions on the quality of molding micro part were investigated. The results showed that for HDPE

the influence of mold temperature on filling rate was the principal parameter in the molding process. Packing pressure was the secondary factor. The impact of melt temperature and packing pressure time was relatively small. The experimental results also indicated that for POM

the influence of melt temperature on filling rate was the main parameter in the molding process. Packing pressure was the secondary factor. The impact of mold temperature and packing pressure time were relatively small.

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