Publication detail
Impact of casting speed on the temperature field of continuously cast steel billets
KLIMEŠ, L. ŠTĚTINA, J. BUČEK, P.
Czech title
Vliv licí rychlosti na teplotní pole plynule odlévaných ocelových sochorů
English title
Impact of casting speed on the temperature field of continuously cast steel billets
Type
journal article - other
Language
en
Original abstract
In continuous casting, the casting speed is one of the most important parameters that influence the entire process of steel production and its productivity. From the physical point of view, the casting speed affects the temperature field formation along the cast steel blank, e.g., the surface and corner temperatures as well as the solidification of the steel, e.g., the shell thickness, the isosolidus and isoliquidus curves, the metallurgical length and the width of the mushy zone. In order to achieve a particular steel structure, the temperature ranges in particular positions (e.g., due to the straightening), and to minimize the occurrence of defects, it is very important to pay attention to a proper determination of the casting speed. The aim of this paper is to investigate the impact of the casting speed on the temperature field formation of continuously cast steel billets, and on the aforementioned parameters. Three steel grades with various chemical compositions and the originally implemented numerical model of the transient temperature field of continuously cast billets in Zeleziarne Podbrezova in Slovakia were utilized for the analysis. The results proved the significant influence of the casting speed on the temperature field formation and on related parameters. The conclusions may be utilized, e.g., for the determination of the casting speed and for the setup of the caster.
Czech abstract
Licí rychlost je jedním z nejdůležitějších parametrů plynulého odlévání oceli, který ovlivňuje celý proces produkce oceli a jeho produktivitu. Z fyzikálního pohledu licí rychlost ovlivňuje zejména utváření teplotního pole podél odlévaného sochoru, např. povrchovou teplotu a teplotu v rozích sochoru a stejně tak i samotný proces solidifikace, např. tloušťku ztuhlé kůry na povrchu sochoru, izosolidu a izolikvidu, metalurgickou délku a šírku mushy zóny. S ohledem na dosažení požadované jakosti oceli a minimalizaci výskytu vad odlévaných sochorů je nutné dbát na vhodné stanovení licí rychlosti. Cílem příspěvku je analýza vlivu licí rychlosti na utváření teplotního pole plynule litých sochorů a dalších zmíněných parametrů. Tři značky oceli odlévané v Železárnách Podbrezová s různým chemickým složením byly podrobeny analýze s využitím původního numerického modelu teplotního pole. Výsledky prokázaly významný vliv licí rychlosti na utváření teplotního pole a související parametry. Výsledky a závěry lze využít pro stanovení licí rychlosti a nastavení licího stroje.
English abstract
In continuous casting, the casting speed is one of the most important parameters that influence the entire process of steel production and its productivity. From the physical point of view, the casting speed affects the temperature field formation along the cast steel blank, e.g., the surface and corner temperatures as well as the solidification of the steel, e.g., the shell thickness, the isosolidus and isoliquidus curves, the metallurgical length and the width of the mushy zone. In order to achieve a particular steel structure, the temperature ranges in particular positions (e.g., due to the straightening), and to minimize the occurrence of defects, it is very important to pay attention to a proper determination of the casting speed. The aim of this paper is to investigate the impact of the casting speed on the temperature field formation of continuously cast steel billets, and on the aforementioned parameters. Three steel grades with various chemical compositions and the originally implemented numerical model of the transient temperature field of continuously cast billets in Zeleziarne Podbrezova in Slovakia were utilized for the analysis. The results proved the significant influence of the casting speed on the temperature field formation and on related parameters. The conclusions may be utilized, e.g., for the determination of the casting speed and for the setup of the caster.
Keywords in Czech
plynulé odlévání oceli, licí rychlost, dynamický solidifikační model, teplotní pole
Keywords in English
continuous casting, casting speed, dynamic solidification model, temperature field
RIV year
2013
Released
30.07.2013
Publisher
Insitute of Metals and Technology
Location
Ljubljana, Slovenia
ISSN
1580-2949
Volume
47
Number
4
Pages from–to
507–513
Pages count
7
BIBTEX
@article{BUT100759,
author="Lubomír {Klimeš} and Josef {Štětina} and Pavol {Buček},
title="Impact of casting speed on the temperature field of continuously cast steel billets",
year="2013",
volume="47",
number="4",
month="July",
pages="507--513",
publisher="Insitute of Metals and Technology",
address="Ljubljana, Slovenia",
issn="1580-2949"
}