A methodology is presented to estimate cavity melt temperatures and part weight in the injection molding of amorphous thermoplastics. The approach uses measurements of cavity pressure near the gate and surface temperatures at three sensor locations. The surface temperature data with a heat conductio
A generic controller for part surface temperature on a plastic injection molding machine
β Scribed by R. Dubay; B. Pramujati; M. Hernandez
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 299 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0730-6679
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β¦ Synopsis
Abstract
A new approach for controlling part cooling in plastic injection molding is developed using a PI controller and coolant flow rate as the manipulated variable. The method uses an average part surface temperature within the mold as the setpoint parameter. A mechatronic control system was developed for providing variable coolant flow rates. The control strategy was simulated using plant models, implemented and tested on a 50βtonne plastic injectionβmolding machine with good closed loop responses. Β© 2006 Wiley Periodicals, Inc. Adv Polym Techn 25: 1β12, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/adv.20053
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