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Statements

Subject Item
n2:RIV%2F25877950%3A_____%2F13%3A%230000060%21RIV14-MPO-25877950
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The paper presents new knowledge from numerical modelling of porosity in heavy steel ingot using ProCAST software. The main aim of numerical modelling realized under the conditions of the Department of Metallurgy and Foundry and Regional Materials Science and Technology Centre at the VSB-TU Ostrava is the optimization of the production of heavy steel ingots produced at the companyVítkovice Heavy Machinery a.s.Design/methodology/approach: The selected method of numerical modelling enables 3D fully dimensional numerical simulation of steel casting and the subsequent solidification of steel with the possibility of prediction of ingot defects.Findings: The numerical modelling of casting and solidification of the 90 ton heavy steel ingot under different boundary conditions of the casting led to these main conclusions: In all simulated variants, the final character of solidification was very similar. The lowest level of porosities were achieved in the variant when we used the longer filling time together with decrease of casting temperatures. However, the tested adjustment of casting technology appeared to have only small impact on the resulting porosity.Practical implications: The change of geometry of the mould will have probably more effect on the character of the solidification than only the small changes of the casting parameters which are dependent on the steel grade.Originality/value: On the basis of applied research in close collaboration with industry companies, the obtained data can contribute significantly to optimization the operating conditions, thereby increasing the efficiency of the steelmaking technology and final quality of cast steel. The paper presents new knowledge from numerical modelling of porosity in heavy steel ingot using ProCAST software. The main aim of numerical modelling realized under the conditions of the Department of Metallurgy and Foundry and Regional Materials Science and Technology Centre at the VSB-TU Ostrava is the optimization of the production of heavy steel ingots produced at the companyVítkovice Heavy Machinery a.s.Design/methodology/approach: The selected method of numerical modelling enables 3D fully dimensional numerical simulation of steel casting and the subsequent solidification of steel with the possibility of prediction of ingot defects.Findings: The numerical modelling of casting and solidification of the 90 ton heavy steel ingot under different boundary conditions of the casting led to these main conclusions: In all simulated variants, the final character of solidification was very similar. The lowest level of porosities were achieved in the variant when we used the longer filling time together with decrease of casting temperatures. However, the tested adjustment of casting technology appeared to have only small impact on the resulting porosity.Practical implications: The change of geometry of the mould will have probably more effect on the character of the solidification than only the small changes of the casting parameters which are dependent on the steel grade.Originality/value: On the basis of applied research in close collaboration with industry companies, the obtained data can contribute significantly to optimization the operating conditions, thereby increasing the efficiency of the steelmaking technology and final quality of cast steel.
dcterms:title
The Effect of Boundary Conditions of Casting on the Size of Porosity of Heavy Steel Ingot The Effect of Boundary Conditions of Casting on the Size of Porosity of Heavy Steel Ingot
skos:prefLabel
The Effect of Boundary Conditions of Casting on the Size of Porosity of Heavy Steel Ingot The Effect of Boundary Conditions of Casting on the Size of Porosity of Heavy Steel Ingot
skos:notation
RIV/25877950:_____/13:#0000060!RIV14-MPO-25877950
n15:predkladatel
n18:ico%3A25877950
n3:aktivita
n12:P
n3:aktivity
P(ED0040/01/01), P(FR-TI3/243)
n3:cisloPeriodika
1
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n11:2559315
n3:druhVysledku
n8:J
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
71386
n3:idVysledku
RIV/25877950:_____/13:#0000060
n3:jazykVysledku
n16:eng
n3:klicovaSlova
casting; heavy steel ingot; modelling; porosity
n3:klicoveSlovo
n4:heavy%20steel%20ingot n4:modelling n4:casting n4:porosity
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[21658244F039]
n3:nazevZdroje
Journal of Achievements in Materials and Manufacturing Engineering
n3:obor
n14:JG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:projekt
n5:ED0040%2F01%2F01 n5:FR-TI3%2F243
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
56
n3:tvurceVysledku
Socha, Ladislav Michalek, Karel Machovčák, Pavel Smetana, Bedřich Gryc, Karel Tkadlečková, Markéta
s:issn
1734-8412
s:numberOfPages
9