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Prototype and methodology for the characterization of the polymer-calibrator in...
Carneiro, O. S.; Nóbrega, J. M.; Mota, Armando R.; Silva, CarolinaThe extrusion of technical thermoplastics profiles generally uses a dry calibration/cooling system, composed by one or several calibrators in series. One of the major difficulties to be faced when modelling this important stage is an adequate prescription of the heat transfer coefficient, hinterface, between the plastic profile surface and the cooling medium, which must include the effect of the interface conta...
Characterization of the heat transfer coefficient in thermoplastic profile extr...
Ribau, A. M.; Silva, Carolina; Mota, Armando R.; Nóbrega, J. M.; Carneiro, O. S.The main objective of this work is to design a prototype system that will enable the determination of realistic values for h at the interface polymer-calibrator in real and varied extrusion conditions. The data obtained will allow improving the accuracy of the numerical codes that are being developed by the research team, through the implementation of realistic models for h.
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