Zdzisław Żółkiewicz, Wiesław JankowskiSTUDY OF FILTRATION CHARACTERISTICS OF THE EXPERIMENTAL CERAMIC LAYERSAbstractOne of the main parameters determining proper course of the pattern evaporation process, which takes place in parallel with pouring of the foundry mould with metal, are properties of the ceramic coating applied on a polystyrene pattern. These properties include the permeability and mechanical as well as thermal resistance of the coating. The paper presents the developed measuring apparatus and the results of experimental studies of selected properties of the ceramic coatings applied on a polystyrene pattern used in the lost foam process. Keywords: evaporative patterns, lost foam, permeability, strength, ceramic layer, ![]() |