Experimental study and numerical simulation of preform or sheet exposed to infrared radiative heating

S. Monteix 1 Yannick Le Maoult 1 Fabrice Schmidt 1 R. Ben Yedder 2 R. Diraddo 2 D. Laroche 2
1 CROMeP - Centre de Recherche Outillages, Matériaux et Procédés
2 Industrial Materials Institute (NRCC)
Abstract : Thermoplastic processing like the injection stretch blow moulding and thermoforming processes provide the heating stage with infrared oven. This is a critical stage of the process, as the final part thickness is strongly dependent on the preform or sheet temperature distribution prior to forming. Optimisation of the infrared oven is therefore necessary. Experiments have been conducted in order to characterise the heat source of the infrared emitter and the interaction between the heaters and a semi-transparent PET sheet. An 880 LW AGEMA infrared camera has been used to determine the surface distribution of the transmitted heat flux by measuring the temperature distribution on the surface of the thermoplastic sheet. In addition, numerical simulations of the temperature distribution using control-volume method have been carried out and compared with experimental data.
Keywords : Heating stage Control-volume method Infrared camera Stretch blow moulding Thermoforming View factor computation Contour integration method
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S. Monteix, Yannick Le Maoult, Fabrice Schmidt, R. Ben Yedder, R. Diraddo, et al.. Experimental study and numerical simulation of preform or sheet exposed to infrared radiative heating. Journal of Materials Processing Technology, Elsevier, 2001, 119 (1-3, SI), pp.90-97. ⟨10.1016/S0924-0136(01)00882-2⟩. ⟨hal-02051043⟩

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