Open AccessExperimental study of injection‐charged compression molding of thermoplastics
Author(s) -
Yang S. Y.,
Chen Y. C.
Publication year - 1998
Publication title -
advances in polymer technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 44
eISSN - 1098-2329
pISSN - 0730-6679
DOI - 10.1002/(sici)1098-2329(199824)17:4<353::aid-adv6>3.0.co;2-q
Subject(s) - compression molding , materials science , compression (physics) , molding (decorative) , composite material , process (computing) , flexibility (engineering) , mold , computer science , statistics , mathematics , operating system
The control capacity and flexibility of the injection compression molding technique is significantly greater than that of conventional injection molding. If compression starts before complete filling, the process can be called injection‐charged compression molding (ICCM). This article investigates the effects of the ICCM process on moldability and part quality. Effects of compression‐related parameters, including delay, speed, pressure, time, and distance, are also investigated. ICCM extends the moldable area with an expanded cavity during short‐shot filling. The process improves dimensional accuracy in the lateral direction. However, surface conformity to the cavity is not better than conventional injection molding due to a significant orientation difference in injection‐ and compression‐filled zones. The good part quality can be obtained with short delay, long compression distance, low pressure, and proper compression time. © 1998 John Wiley & Sons, Inc. Adv Polym Techn 17: 353–360, 1998