Detail publikace
Dva modely k zajištění dobrých mechanických vlastností odlitků z tvárné litiny
KAVIČKA, F. STRÁNSKÝ, K. DOBROVSKÁ, J. SEKANINA, B. ŠTĚTINA, J.
Český název
Dva modely k zajištění dobrých mechanických vlastností odlitků z tvárné litiny
Anglický název
Two Models for Achieving Good Mechanical Properties Of a Casting of Ductile Cast-Iron
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
An original application of ANSYS simulated the forming of the temperature field of a massive casting during the application various methods of its cooling. The numerical model managed to optimize more than one method of cooling but, in addition to that, provided serious results for the successive model of structural and chemical heterogeneity, and so it also contributes to influencing the pouring structure. The file containing the acquired results from both models, as well as from their organic unification, brings new and, simultaneously, remarkable findings of causal relationships between the structural and chemical heterogeneity (i.e. between the sizes of the spheroids of graphite, the cells, density of the spheroids of graphite, etc.) and the local solidification time in any point of the casting. The determined relations therefore enable the prediction of the face density of the spheroids of graphite in dependence on the local solidification time.
Český abstrakt
Originální aplikace ANSYS simuluje tvorbu teplotního pole masivního odlitku při aplikaci různých metod jeho chlazení. Numerický model umožnil nejen výběr optimální metody chlazení, ale poskytl i výsledky pro model strukturální a chemické heterogenity a tak přispěl k ovlivnění licí struktury. Je prokázána příčinná souvislost mezi strukturální a chemickou heterogenitou a lokální dobou tuhnutí v libovolném místě odlitku.
Anglický abstrakt
An original application of ANSYS simulated the forming of the temperature field of a massive casting during the application various methods of its cooling. The numerical model managed to optimize more than one method of cooling but, in addition to that, provided serious results for the successive model of structural and chemical heterogeneity, and so it also contributes to influencing the pouring structure. The file containing the acquired results from both models, as well as from their organic unification, brings new and, simultaneously, remarkable findings of causal relationships between the structural and chemical heterogeneity (i.e. between the sizes of the spheroids of graphite, the cells, density of the spheroids of graphite, etc.) and the local solidification time in any point of the casting. The determined relations therefore enable the prediction of the face density of the spheroids of graphite in dependence on the local solidification time.
Klíčová slova česky
teplotní pole, chemická heterogenita, strukturální charakteristika, matematické modelování
Klíčová slova anglicky
temperature field, chemical heterogeneity, structural characteristic, mathematical modelling
Rok RIV
2010
Vydáno
30.04.2010
Nakladatel
Hutnická fakulta TU Košice
Místo
Košice
ISSN
1338-1660
Časopis
Acta metalurgica slovaca
Ročník
2010
Číslo
1
Strany od–do
129–132
Počet stran
4
BIBTEX
@article{BUT49251,
author="František {Kavička} and Karel {Stránský} and Jana {Dobrovská} and Bohumil {Sekanina} and Josef {Štětina},
title="Two Models for Achieving Good Mechanical Properties Of a Casting of Ductile Cast-Iron",
journal="Acta metalurgica slovaca",
year="2010",
volume="2010",
number="1",
month="April",
pages="129--132",
publisher="Hutnická fakulta TU Košice",
address="Košice",
issn="1338-1660"
}