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Statements

Subject Item
n2:RIV%2F25877950%3A_____%2F13%3A%230000061%21RIV14-MPO-25877950
rdf:type
skos:Concept n15:Vysledek
dcterms:description
The paper describes the pre-processing, processing and post-processing of numerical modelling of casting and solidification of heavy steel ingot. The numerical modelling was realized in ProCAST software under the conditions of the Department of Metallurgy and Foundry and Regional Materials Science and Technology Centre (RMSTC) at VSB-Technical University of Ostrava. The aim of numerical modelling was the optimization of the production of heavy steel ingots produced in VÍTKOVICE HEAVY MACHINERY a.s. The attention was primary focused on the minimization of volume defects in 90-ton heavy steel ingot, such as porosity and macrosegregation. In the case of casting and solidification of heavy steel ingots, among the most important and the most easily influenced technological parameters belongs the casting temperature and casting speed. In contrast, the conditions of heat transfer are defined by the thermal characteristics of the mould material. The material of casting system is usually chosen based on the experience of the steel plant. Therefore, it cannot be arbitrarily changed. For this reason, the attention was focused on the verification of the extent of volume defects depending on the casting temperature of steel and casting speed. The results of numerical simulation of casting and solidification of heavy steel ingot in SW ProCAST showed that there is relatively easy to change the boundary conditions. The decreasing of casting temperature together with longer filling time led to the minimization of central porosity, and also of macrosegregation. The paper describes the pre-processing, processing and post-processing of numerical modelling of casting and solidification of heavy steel ingot. The numerical modelling was realized in ProCAST software under the conditions of the Department of Metallurgy and Foundry and Regional Materials Science and Technology Centre (RMSTC) at VSB-Technical University of Ostrava. The aim of numerical modelling was the optimization of the production of heavy steel ingots produced in VÍTKOVICE HEAVY MACHINERY a.s. The attention was primary focused on the minimization of volume defects in 90-ton heavy steel ingot, such as porosity and macrosegregation. In the case of casting and solidification of heavy steel ingots, among the most important and the most easily influenced technological parameters belongs the casting temperature and casting speed. In contrast, the conditions of heat transfer are defined by the thermal characteristics of the mould material. The material of casting system is usually chosen based on the experience of the steel plant. Therefore, it cannot be arbitrarily changed. For this reason, the attention was focused on the verification of the extent of volume defects depending on the casting temperature of steel and casting speed. The results of numerical simulation of casting and solidification of heavy steel ingot in SW ProCAST showed that there is relatively easy to change the boundary conditions. The decreasing of casting temperature together with longer filling time led to the minimization of central porosity, and also of macrosegregation.
dcterms:title
Numerical Modelling of Volume Defects in Heavy Steel Ingot Under Different Boundary Conditions Numerical Modelling of Volume Defects in Heavy Steel Ingot Under Different Boundary Conditions
skos:prefLabel
Numerical Modelling of Volume Defects in Heavy Steel Ingot Under Different Boundary Conditions Numerical Modelling of Volume Defects in Heavy Steel Ingot Under Different Boundary Conditions
skos:notation
RIV/25877950:_____/13:#0000061!RIV14-MPO-25877950
n15:predkladatel
n18:ico%3A25877950
n3:aktivita
n4:P
n3:aktivity
P(ED0040/01/01), P(FR-TI3/243)
n3:dodaniDat
n13:2014
n3:domaciTvurceVysledku
n14:2559315
n3:druhVysledku
n17:D
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
92570
n3:idVysledku
RIV/25877950:_____/13:#0000061
n3:jazykVysledku
n16:eng
n3:klicovaSlova
steel; ingot; numerical modelling; macrosegregation
n3:klicoveSlovo
n10:numerical%20modelling n10:steel n10:ingot n10:macrosegregation
n3:kontrolniKodProRIV
[60D0927D91D5]
n3:mistoKonaniAkce
Ostrava
n3:mistoVydani
Ostrava
n3:nazevZdroje
STEELSIM 2013, 5th International Conference on Modelling and Simulation of Metallurgical Processes in Steelmaking, Conference proceedings
n3:obor
n8:JG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n5:FR-TI3%2F243 n5:ED0040%2F01%2F01
n3:rokUplatneniVysledku
n13:2013
n3:tvurceVysledku
Tkadlečková, Markéta Machovčák, Pavel Michalek, Karel Kováč, Marek Gryc, Karel
n3:typAkce
n11:WRD
n3:zahajeniAkce
2013-09-10+02:00
s:numberOfPages
11
n12:hasPublisher
Ocelot, s.r.o.
n19:isbn
978-80-260-3912-9