脉动力场下的熔体充模能力及模腔压力响应

华南理工大学学报（自然科学版） ›› 2007, Vol. 35 ›› Issue (2): 85-88.

脉动力场下的熔体充模能力及模腔压力响应

吴宏武¹张韶眈¹许海航²

1.华南理工大学聚合物成型加工工程教育部重点实验室，广东广州 510640;2 番禹职业技术学院机械与电子系，广东广州 511400

收稿日期:2005-11-14 出版日期:2007-02-25 发布日期:2007-02-25
通信作者: 吴宏武(1965-)，男，教授，主要从事高分子材料成型加工研究. E-mail:mmhwwu@scut. edu.cn
作者简介:吴宏武(1965-)，男，教授，主要从事高分子材料成型加工研究.
基金资助:
教育部新世纪优秀人才支持计划项目( NCET-04-0820)

Melt Filling Ability and Cavity Pressure Under Pulsed VibrationField

Wu Hong-wu¹ Zhang Shao-dan¹XuHai-hang²

1. Key Laboratory of Polymer Processing Engineering of the Ministrγof Education , South China Univ. of Tech.Guangzhou 510640 , Guangdong , China;2. Dept. of Electromechanical Engineering , Panyu Polytechnic , Guangzhou 511400 , Guangdong , China

Received:2005-11-14 Online:2007-02-25 Published:2007-02-25
Contact: 吴宏武(1965-)，男，教授，主要从事高分子材料成型加工研究. E-mail:mmhwwu@scut. edu.cn
About author:吴宏武(1965-)，男，教授，主要从事高分子材料成型加工研究.
Supported by:
教育部新世纪优秀人才支持计划项目( NCET-04-0820)

摘要/Abstract

摘要： 利用螺旋流道模具模腔狭长的特点，通过测量制品长度研究了脉动力场对注塑过程中熔体充模能力的影响，进而利用高灵敏度的熔体压力传感器和数据采集系统，对熔休充模及保压过程中的模腔压力进行了实时测量和分析.实验结果显示，在脉动力场作用下，熔体在模腔中的流动长度增加，充模压力提高.分析证明，由于振动的引入，熔体粘度降低，压力传递过程损耗减小，熔体充模能力提高，有效保压时间延长，有利于制品的填充压实.

关键词: 脉动力场, 动态注塑成型, 充模能力, 模腔压力

Abstract:

By considering the fact that the cavity of the spiral flow mold is both long and narrow , the effect of the pulsed vibration field on the filling ability of the melt in the molding process was investigated by measuring the product length. The cavity pressure in the molding and packing processes was then measured and analyzed using a high-sensitivity melt pressure sensor and a data collection system. Experimental results indicate that the pulsed vi-bration field helps to improve the flow length as well as the filling pressure of the melt in the cavity. Analytical re-sults show that , in a pulsed vibration field , the melt viscosity and the pressure consumption decrease , while the fil-ling ability of the melt and the effective packing time increase. All these factors contribute a lot to the compression of the product.

Key words: pulsed vibration field, dynamic injection molding, filling ability, cavity pressure

吴宏武张韶眈许海航. 脉动力场下的熔体充模能力及模腔压力响应[J]. 华南理工大学学报（自然科学版）, 2007, 35(2): 85-88.

Wu Hong-wu Zhang Shao-dan XuHai-hang. Melt Filling Ability and Cavity Pressure Under Pulsed VibrationField[J]. Journal of South China University of Technology (Natural Science Edition), 2007, 35(2): 85-88.