中国塑料 ›› 2013, Vol. 27 ›› Issue (03): 82-86 .DOI: 10.19491/j.issn.1001-9278.2013.03.015

• 加工与应用 • 上一篇    下一篇

工艺参数对熔接线注塑件应力的影响分析

陈乐平 陈罡 陈健 单磊   

  1. 浙江纺织服装职业技术学院
  • 收稿日期:2012-10-31 修回日期:2012-12-06 出版日期:2013-03-26 发布日期:2013-03-26

Analysis on Stress of Injection-molded Parts with Weld Lines from Process Parameters

  

  • Received:2012-10-31 Revised:2012-12-06 Online:2013-03-26 Published:2013-03-26

摘要: 本文利用有限元方法,将Moldflow软件分析的注射成型结果导入到Ansys软件进行结构力学分析,发现注塑件在外载荷和边界条件等均相同的条件下,随模具温度、保压时间和保压压力的增加最大von Mises应力下降,且幅度各不相同;而随着熔体温度的增加,最大von Mises应力也增加;同时,熔接线使注塑件的von Mises应力明显高于同等条件下没有熔接线的注塑件,而且熔接线还影响工艺参数对注塑件最大von Mises应力的变化规律。

关键词: 熔接线, 工艺参数, Moldflow, 最大von Mises应力, 注射成型, 分析

Abstract: The paper analyzed mechanical properties of injection molded parts by introducing results of Moldflow into ANSYS software based on finite element method. The results showed that the maximum von Mises stress decreased with increasing mold temperature, packing time, and packing pressure, and melt temperature, provided the external loads was the same. Meanwhile, the von Mises stress in the parts with the weld lines was significantly higher those without weld lines in the same conditions. The presence of weld lines also affected the relationship between the process parameters and the maximum von Mises stress of injection molded parts.

Key words: weld line, process, Moldflow, maximum von Mises stress, injection molding, analysis

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