The use of IR thermography to show the mold and part temperature evolution in injection molding

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Abstract

This study concerns the application of infrared camera for injection molding analysis by measuring temperatures of both injection molded parts and injection mold cavities in a function of injection cycles. The mold with two cavities, differing in thickness (1 and 3 mm), and a cold direct runner was used. Isotactic polypropylene homopolymer was utilized to produce parts. Mold temperature was set at 22°C and controlled by a water chiller. Five measuring points were determined: SP1, SP2 (placed in the 3 mm cavity), SP3, SP4 (located in the 1 mm cavity) and SP5 around an injection molding gate. Our investigations showed that the highest temperature is localized around SP2 point and the lowest at SP4. Also, it was proved that even after 62 injection molding cycles, temperatures of cavities were not stable, revealing their further increase with each cycle.

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  • [1] Zawistowski H. Frenkler D. Konstrukcja form wtryskowych do tworzyw termoplastycznych 1984 WNT Warszawa.

  • [2] Smorawiński A. Technologia wtrysku Warszawa WNT 1989.

  • [3] Postawa P. Skurcz przetwórczy wyprasek a warunki wtryskiwania Polimery 2005 vol. 50 nr 3 s. 201 - 207.

  • [4] Bociąga E. Jaruga T. Badania mikroskopowe przepływu tworzywa w kanałach 16-gniazdowej formy wtryskowej Polimery 2006 vol. 51 nr 11-12 s. 843-851.

  • [5] Schwalme G. Inline infrared thermography applied for quality gates and for mould temperature control in the injection moulding process 58th Ilmenau Scientific Colloquium 2014 Technische Universität Ilmenau 08 - 12 September 2014 web page: urn:nbn:de:gbv:ilm1-2014iwk-182:2

  • [6] Bendada A. Derdouri A. Simard Y. Lamontagne M. Advances in infrared technology for the online monitoring of injection moulding: application to the understanding of the nature of contact at thepolymer-mould interface Transactions of the Institute of Measurement and Control 29 5 (2007) pp. 431-451.

  • [7] Meola C. Giorleo G. Nele L. Squillace A. Carlomagno G.M. Infrared thermography in the quality assurance of manufacturing systems Nondestructive Testing and Evaluation 2002 Vol. 18 (2) pp. 83-90

  • [8] Bula K. Różański L. Buczkowski M. Badania procesu wtryskiwania z wykorzystaniem termografii w podczerwieni Przetwórstwo Tworzyw 2014 vol.20 nr 5 s. 386-393.

  • [9] Bula K. Kucharski D. Analiza odkształceń wyprasek wtryskowych wytwarzanych w warunkach asymetrii temperatury formy Przetwórstwo Tworzyw 2013 vol.19 nr 3 s. 155-161.

  • [10] Technical datasheet: Basell Orlen Moplen HP 648T.

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