20.500.12556/RUL-175324 Analiza prenosa toplote med orodjem in talino v procesu tlačnega litja aluminija Analysis of heat transfer between the die and the melt in the aluminum high-pressure die casting process Orodje za tlačno litje je podvrženo cikličnim temperaturnim obremenitvam. Koeficient toplotne prestopnosti je parameter, ki določa količino prenesene toplote na tlačno orodje in posledično temperaturo tlačnega orodja. Poznavanje temperature pa je bistveno za določanje življenjske dobe orodja za tlačno litje. V okviru magistrske naloge smo s termopari izmerili časovno zgodovino temperature tlačnega orodja. V programskem okolju Magmasoft smo izračunali temperaturo tlačnega orodja, pri čemer smo uporabili različne koeficiente toplotne prestopnosti, ki so na voljo v literaturi. Na podlagi primerjave med izmerjenimi in izračunanimi temperaturami smo izvedli validacijo prenosa toplote. Izmerjenim temperaturam se najbolj približamo z uporabo modificiranega koeficienta toplotne prestopnosti. Z uporabo validiranega koeficienta toplotne prestopnosti smo sposobni točneje določiti temperaturo tlačnega orodja. Die casting tool is subjected to cyclic thermal loads. The heat transfer coefficient is a parameter that determines the amount of heat transferred to the die and consequently the temperature of the die. Knowing the die temperature is essential to determine the lifetime of the die casting tool. In this M. Sc. thesis, the die temperature was measured using thermocouples. In the Magmasoft software environment, the die temperature was calculated using different heat transfer coefficients available in the literature. Based on the comparison between the measured and calculated temperatures, a validation of the heat transfer was performed. The best agreement with the measured temperatures is obtained using the modified heat transfer coefficient. Using the validated heat transfer coefficient we are able to determine the temperature of the die casting tool more accurately. orodje za tlačno litje koeficient toplotne prestopnosti validacija toplotna analiza termoparji prenos toplote die casting tool heat transfer coefficient validation thermal analysis thermocouples heat transfer true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-10-24 08:30:57 2025-10-24 08:30:58 2025-12-10 03:35:28 0000-00-00 00:00:00 2025 0 0 XX, 68 str. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.2:621.746.3:621.74.043(043.2) 277327 255627011 45519.pdf 45519.pdf 1 8C372B04AD4C40075AE8620757127B8A 0ca617560ee6fa4f471323afd2af47d292989df00888b9a3b74874b124cbe9be b6a6767b-b0a2-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=220772 Fakulteta za strojništvo 0 0 0