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气体辅助注射成型制品气泡形成的实验研究()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

Title:: Experimental Study on Foam Formation on Gas Channel Wall in Gas·-AssistedInjection Molded Parts

作者:: 郑国强; 蒋志辉; 李倩; 等.; 郑州大学材料成型过程及模具教育部重点实验室河南郑州,450001, 郑州大学材料成型过程及模具教育部重点实验室河南郑州,450001, 郑州大学材料成型过程及模具教育部重点实验室河南郑州,450001, 郑州大学材料成型过程及模具教育部重点实验室河南郑州,450001

Author(s):: ZHENG Guoqiang; JIANG Zhihui; LI Qian; etc; The key Laboratory of Advanced Matenials processing＆of Ministry of Education，Zhengzhou University，Zhengzhou 450001China)

Keywords:: gas-assisted injection molding; Process parameters; Bubble formation

摘要:: 气体辅助注射成型(GAIM)制品中,气道壁处的气泡是影响塑料制件力学和光学性能的重要因素.运用定量试验方法,就GAIM工艺参数对塑料制品内壁气泡形成的影响进行了试验研究,探讨了工艺参数与气泡形成规律的关系,并揭示了GAIM制品气道内壁气泡形成原因.结果表明:降低熔体温度、气体注射压力及保压压力,缩短气体保压时间均可以有效地防止气道壁气泡的形成.

Abstract:: In the gas—assisted injection molding，foaming structure in the gas channel region is a key factoraffecting the mechanical and optical performance of the GAIM part．An experiment was carried out to study theeffects of the processing conditions on foam formation in the gas—assisted injection molding，using quantitativeanalysis method．The relationship between the processing parameters and foam formation on the gas channelwall was discussed and the reasons leading to foam was analyzed．The results reveal that foam can be avoidedby lowering the melt temperature，reducing the gas injection pressure and the holding pressure as well as theholding time．

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更新日期/Last Update: 1900-01-01