TY - JOUR N2 - The aging granulate is to activate the blowing agent during the manufacturing process to granulate models can re-expand and shape the model of well-sintered granules, smooth surface and a suitable mechanical strength. The article presents the results of studies which aim was to determine the optimum time for aging pre-foamed granules for pre-selected raw materials. The testing samples were shaped in an autoclave, with constant parameters sintering time and temperature. Samples were made at 30 minute intervals. Models have been subjected to flexural strength and hardness. L1 - http://journals.pan.pl/Content/88519/PDF/24_paper.pdf L2 - http://journals.pan.pl/Content/88519 PY - 2015 IS - No 1 DO - 10.1515/afe-2015-0024 KW - Innovative technologies and casting materials KW - Foundry KW - Lost foam KW - Models of polystyrene KW - Castings A1 - Buczkowska, K. A1 - Pacyniak, T. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2015[2015.01.01 AD - 2015.12.31 AD] T1 - The Aging Time Effects of the Pre-expanded Polystyrene on the Patterns Mechanical Properties UR - http://journals.pan.pl/dlibra/publication/edition/88519 T2 - Archives of Foundry Engineering ER -