Publication detail
Study of the occurrence and suppression of metal reoxidation in ferrous castings
ELBEL, T. ŠENBERGER, J. ZÁDĚRA, A.
Czech title
Studium vzniku a omezení reoxidace kovu u odlitků ze slitin železa
English title
Study of the occurrence and suppression of metal reoxidation in ferrous castings
Type
journal article - other
Language
en
Original abstract
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 gaseous products that may further react with the metal and the foundry mould, causing various surface and internal defects 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 metal pouring. The present work deals with changes in oxygen activity in metal poured into sand moulds.
Czech abstract
Důsledkem reoxidace jsou pevné, tekuté a plynné produkty, které mohou reagovat dále s kovem a slévárenskou formou za vzniku různých povrchových i vnitřních vad odlitku. Během reoxidace mohou vznikat následující vady odlitků : makrovměstky (struskové šumy, ceroxidy, sekundární struska); plynové dutiny (struskoplynové vady, bodliny, endogenní bubliny); mikrovměstky, chemická penetrace a strukturní anomálie.
English abstract
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 gaseous products that may further react with the metal and the foundry mould, causing various surface and internal defects 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 metal pouring. The present work deals with changes in oxygen activity in metal poured into sand moulds.
Keywords in Czech
reoxidace, ocelové odlitky, aktivita kyslíku
Keywords in English
reoxidation, ferrous castings,oxygen activity
RIV year
2007
Released
12.12.2007
ISSN
0046-5933
Journal
International Foundry Research
Volume
59
Number
4
Pages from–to
32–37
Pages count
6
BIBTEX
@article{BUT43955,
author="Tomáš {Elbel} and Jaroslav {Šenberger} and Antonín {Záděra},
title="Study of the occurrence and suppression of metal reoxidation in ferrous castings",
journal="International Foundry Research",
year="2007",
volume="59",
number="4",
month="December",
pages="32--37",
issn="0046-5933"
}