TY - JOUR N2 - The paper refers to earlier publications of the author, on identification of properties of thermomechanical, chemically hardened core/mold sands. In that earlier period, first version of the original DMA apparatus, produced by a Polish company Multiserw-Morek, was used. The Hot Distortion (HD) study results, published by the author in 2008, referred to phenomena accompanying a thermal shock in real conditions of thermal interaction of a liquid alloy on a mold, in reference to a shock possible to obtain in laboratory conditions, without use of liquid alloy as a heat source, with analysis of solutions applied in the DMA apparatus. This paper presents author’s observations on testing a new, innovative version of the LRu-DMA apparatus, containing a module allowing the Hot Distortion (HD) study. Temperature of specimens achieved in the case of the gas burner heating reaches values definitely above 800°C on the heated side and 610°C on the other side. Using an electric radiator, with maximal temperature of 900°C allows obtaining temperatures in between 225-300°C. L1 - http://journals.pan.pl/Content/106794/PDF/AFE%202_2018_25.pdf L2 - http://journals.pan.pl/Content/106794 PY - 2018 IS - No 2 DO - 10.24425/122517 KW - core sands KW - thermomechanical phenomena KW - pyrometer/thermovision camera A1 - Ignaszak, Z. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol.18 DA - 2018 T1 - Discussion on the Methodology and Apparatus for Hot Distortion Studies UR - http://journals.pan.pl/dlibra/publication/edition/106794 T2 - Archives of Foundry Engineering ER -