One of the most important stages in the thermoforming process is heating the plastic sheet. Proper heat control is essential for materials such as polypropylene where the thermoforming operating window is very narrow. In industrial thermoforming, sheet temperature is usually not measured directly. Instead, the roll speed of the plastic sheet being fed through the panels of heaters is adjusted until acceptable mouldings have been achieved. Installation of a sheet temperature monitoring system usually proves to be quite expensive. This paper investigates the possibility of a less expensive system and describes the problems which can be encountered when attempting to make accurate infrared readings.
|Number of pages||5|
|Publication status||Published - 1996|
|Event||Proceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3) - Indianapolis, IN, USA|
Duration: 05 May 1996 → 10 May 1996
|Conference||Proceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3)|
|City||Indianapolis, IN, USA|
|Period||05/05/1996 → 10/05/1996|
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
ASJC Scopus subject areas
- Chemical Engineering(all)
- Polymers and Plastics