The use of pressurized water pellets in injection molding to improve dimensional consistency while decreasing cycle time

Rachmat Mulyana, Eusebio Duarte Cabrera, Jose M. Castro, Ly James Lee

研究成果: Conference contribution同行評審

摘要

In injection molding, cycle time, and dimensional stability are critical factors for process economics and product quality. In this paper, we discuss a new process/molding method developed by our group to improve dimensional stability while decreasing cycle time with minimum effect on mechanical properties. Pellets were prepared by compounding a water carrier particle, (Activated Carbon /AC) via extrusion, followed by a batch pressurizing process at a controlled pressure and temperature to allow a small amount of water to be absorbed into the pellets. Results show that the cycle time, sink marks and warpage are reduced without a major effect on the mechanical properties. A simplified diffusion model is proposed to better understand the loss of water in the pellet as a function of time and estimate raw material stability.

原文English
主出版物標題Society of Plastics Engineers - EUROTECH 2013
發行者Society of Plastics Engineers
頁面158-162
頁數5
ISBN(列印)9781632665324
出版狀態Published - 4 7月 2013
事件EUROTECH 2013 - Lyon, France
持續時間: 4 7月 20135 7月 2013

出版系列

名字Society of Plastics Engineers - EUROTECH 2013

Conference

ConferenceEUROTECH 2013
國家/地區France
城市Lyon
期間4/07/135/07/13

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