· Fundición ·
T.Elbel*,J.Senberger**,A.Zadera**,L.Kocian*.
VSB – Technical University of Ostrava, CZ, ** Brno University of Technology, CZ. 67th WFC
Recent advances in understanding the processes of casting metals into
green sand moulds have shown that the occurrence of reoxidation plays a
key role in the control of the quality of castings. The reoxidation gives rise
to solid, liquid and gas products that may further react with the metal and
foundry mould, and with various surface and internal defects appearing in
the casting. The resultant occurrence of casting defects is affected by the
content of deoxidation elements in the metal and by the process of
deoxidation reactions in the mould during and after pouring the metal. The
present work is concerned with changes in oxygen activity in the metal
poured into sand moulds.
