TY - JOUR N2 - The results of investigations of the influence of the matrix grain sizes on properties of cores made by the blowing method are presented in the hereby paper. Five kinds of matrices, differing in grain size compositions, determined by the laser diffraction method in the Analysette 22NanoTec device, were applied in investigations. Individual kinds of matrices were used for making core sands in the Cordis technology. From these sands the shaped elements, for determining the apparent density of compacted sands and their bending strength, were made by the blowing method. The shaped elements (cores) were made at shooting pressures being 3, 4 and 5 atn. The bending strength of samples were determined directly after their preparation and after the storing time of 1 hour. L1 - http://www.czasopisma.pan.pl/Content/101962/PDF/afe-2017-0005.pdf L2 - http://www.czasopisma.pan.pl/Content/101962 PY - 2017 IS - No 1 DO - 10.1515/afe-2017-0005 KW - Moulding sand KW - Core sand KW - Blowing method KW - Inorganic binder KW - Bending strength A1 - Dańko, R. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol. 17 DA - 2017 T1 - Influence of the Matrix Grain Size on the Apparent Density and Bending Strength of Sand Cores UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/101962 T2 - Archives of Foundry Engineering ER -