
Тема выпуÑкной квалификационной работы: «Моделирование теплопередачи в формовочных ÑмеÑÑх». Работа поÑвÑщена проведению чиÑленного анализа процеÑÑа теплообмена и определению Ñффективных теплофизичеÑких ÑвойÑтв формовочных ÑмеÑей на оÑнове кварцевого пеÑка и жидкого Ñтекла. Проведено изучение теплофизичеÑких характериÑтик формовочной ÑмеÑи на оÑнове Ð²Ð°Ñ€ÑŒÐ¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ñновных параметров иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ - количеÑтва ÑвÑзующего и диаметра зерен наполнителÑ. Разработан алгоритм Ð´Ð»Ñ Ñ€ÐµÐ°Ð»Ð¸Ð·Ð°Ñ†Ð¸Ð¸ перÑпективного Ñ€Ð°Ð·Ð²Ð¸Ñ‚Ð¸Ñ Ð¿Ñ€Ð¾Ð³Ñ€Ð°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ обеÑÐ¿ÐµÑ‡ÐµÐ½Ð¸Ñ Ð¿ÑƒÑ‚ÐµÐ¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ ÑƒÑловий Ñ„Ð¾Ñ€Ð¼Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð°Ñыпной плотноÑти и Ñтепени деформации пленки ÑвÑзующего при уплотнении ÑмеÑи. Методом математичеÑкого Ð¼Ð¾Ð´ÐµÐ»Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾Ñ‰ÑŒÑŽ программного пакета “SVIAZAN†проведен анализ ÑовмеÑтного влиÑÐ½Ð¸Ñ Ñтруктурных характериÑтик формовочных ÑмеÑей, необходимых Ð´Ð»Ñ Ð¾Ð¿Ñ€ÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¸Ñ… теплофизичеÑких параметров. ИÑÑледованы температурные завиÑимоÑти локально-Ñффективной теплопроводноÑти формовочных ÑмеÑей при изменении Ñреднего диаметра зерен Ð½Ð°Ð¿Ð¾Ð»Ð½Ð¸Ñ‚ÐµÐ»Ñ Ð¸ количеÑтва вводимого жидко-Ñтекольного ÑвÑзующего. Разработана математичеÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»ÑŒ, Ð¾Ñ€Ð¸ÐµÐ½Ñ‚Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð½Ð°Ñ Ð½Ð° развитие информационного обеÑÐ¿ÐµÑ‡ÐµÐ½Ð¸Ñ Ð¸ раÑчетного аппарата Ð´Ð»Ñ ÐºÐ¾Ð¼Ð¿ÑŒÑŽÑ‚ÐµÑ€Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ Ñ‚ÐµÐ¿Ð»Ð¾Ñ„Ð¸Ð·Ð¸Ñ‡ÐµÑких характериÑтик формовочных ÑмеÑей.
The subject of the graduate qualification work is “Modeling heat transfer in molding sandsâ€. The given work is devoted to numerical analysis of a heat transfer and defining the properties of molding sands based on silica sand and liquid glass. Studying thermophysical properties of a molding sand. The studying made in the qualification work is based on parameters manipulation, such as: 1) binder quantity, 2) grain diameter. The algorithm for growth prospect of the software was developed. The analysis was conducted by the method of mathematical modeling with the use of the “SVIAZAN†software package. The study resulted into data analysis of linking the structural factors of the molding sand. The temperature dependency of the mold sand thermal conductivity has been studied. The research has shown the complicated relation between local thermal conductivity of the sand and the grain diameter with the quantity of the binder. An algorithm aimed at developing the modeling software has been developed.
thermophysical properties, structural properties, density, porosity, ÑеплоÑизиÑеÑкие Ñ Ð°ÑакÑеÑиÑÑики, поÑиÑÑоÑÑÑ, modeling heat transfer, ÑоÑмовоÑÐ½Ð°Ñ ÑмеÑÑ, ÑÑÑÑкÑÑÑнÑе Ñ Ð°ÑакÑеÑиÑÑики, плоÑноÑÑÑ, thermal conductivity, compaction, моделиÑование ÑеплопеÑедаÑи, molding sand, ÑеплопÑоводноÑÑÑ, ÑплоÑнение
thermophysical properties, structural properties, density, porosity, ÑеплоÑизиÑеÑкие Ñ Ð°ÑакÑеÑиÑÑики, поÑиÑÑоÑÑÑ, modeling heat transfer, ÑоÑмовоÑÐ½Ð°Ñ ÑмеÑÑ, ÑÑÑÑкÑÑÑнÑе Ñ Ð°ÑакÑеÑиÑÑики, плоÑноÑÑÑ, thermal conductivity, compaction, моделиÑование ÑеплопеÑедаÑи, molding sand, ÑеплопÑоводноÑÑÑ, ÑплоÑнение
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