中国塑料 ›› 2016, Vol. 30 ›› Issue (12): 70-74 .DOI: 10.19491/j.issn.1001-9278.2016.12.013

• 加工与应用 • 上一篇    下一篇

一模两腔不对称薄壁塑件工艺参数对收缩的影响研究

傅建钢1,黄建芳2   

  1. 1. 绍兴职业技术学院2. 浙江省机械工业联合会
  • 收稿日期:2016-07-05 修回日期:2016-08-10 出版日期:2016-12-26 发布日期:2016-12-26

Influence of Processing Parameters on the Shrinkage of Asymmetric Thin Wall Plastic Parts Made by Two Cavity Injection Molding

  • Received:2016-07-05 Revised:2016-08-10 Online:2016-12-26 Published:2016-12-26

摘要: 以降低塑件收缩率为目标,运用模流分析技术和正交试验法,通过方差分析,研究了工艺参数对塑件收缩率的影响程度。结果表明,使用最优工艺参数组合得到的塑件收缩率值为4.3117 %,该值远小于25次正交试验得到的实验值;对于丙烯腈-丁二烯-苯乙烯共聚物(ABS)材料而言,各工艺参数对收缩率的影响程度排序为:注射时间>熔体温度>保压时间>模具温度>冷却时间>保压压力。

关键词: 收缩, 正交试验, 工艺参数, 模流分析

Abstract: In order to reduce the shrinkage rate of plastic parts, the influence of process parameters on the shrinkage of plastic parts was studied by means of analysis of variance and orthogonal test. The results indicated that the plastic shrinkage obtained through the combination of optimal process parameters was 4.3117 %, Which was much smaller than the experimental one obtained from 25 times of orthogonal tests. In the case of acrylonitrile-butadiene-styrene resin, the effect of processing parameters on the shrinkage became significant in an order of injection time > melt temperature > holding time > mold temperature > cooling time > holding pressure.

Key words: shrinkage, orthogonal test, processing parameter, flow simulation analysis