TY - JOUR N2 - The investigation results of the mechanical reclamation of spent moulding sands from the Cordis technology are presented in the paper. The quality assessment of the obtained reclaim and the influence of the reclaim fraction in a matrix on the core sand strength is given. The reclaim quality assessment was performed on the basis of the determination of losses on ignition, Na2O content on reclaim grains and pH values. The reclaim constituted 100%, 75% and 50% of the core sand matrix, for which the bending strength was determined. The matrix reclamation treatment was performed in the experimental rotor reclaimer RD-6. Spent sands were applied in as-delivered condition and after the heating to a temperature of 140 o C. Shaped samples for strength tests were made by shooting and hardening of sands in the warmbox technology. L1 - http://www.czasopisma.pan.pl/Content/88275/PDF/03_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/88275 PY - 2014 IS - No 4 DO - 10.2478/afe-2014-0078 KW - core sand KW - Matrix recycling A1 - Dańko, R. A1 - Dańko, J. A1 - Skrzyński, M. A1 - Dereń, M. A1 - Zygmunt, Ł. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2014 T1 - Influence of the Reclaim from the Cordis Technology on the Core Sand Strength UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/88275 T2 - Archives of Foundry Engineering ER -