Operational experiences with the optimization of secondary cooling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU109486" target="_blank" >RIV/00216305:26210/14:PU109486 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Operational experiences with the optimization of secondary cooling

Popis výsledku v původním jazyce

Surface temperatures of cast slabs at small radius segments in front of as well as at the unbending point belong to parameters that affect the surface quality of continuously cast slabs. Older machines for continuous casting were designed with regard to the performance (to amount of cast slabs) rather than to the quality. Therefore, the adaptation of secondary cooling is required in order to accomplish the desired surface temperatures. The modification consists in the dynamic control of secondary cooling, surface temperatures monitoring by means of the numerical model of temperature field as well as in a prospective replacement of cooling nozzles. The paper deals with relationships of described influences and their impacts to the temperature field of cast slabs. The results are presented for the 1530x250 mm slabs that are cast in Evraz Vitkovice Steel where the main authors dynamic 3D solidification model is used to control the production. The results and experiences obtained after the replacement of cooling nozzles are compared to long-time operational data for the preceding setup of cooling nozzles. The comparison is performed with the use of data acquired from the dynamic solidification model and with the use of the statistical operational data.

Název v anglickém jazyce

Operational experiences with the optimization of secondary cooling

Popis výsledku anglicky

Surface temperatures of cast slabs at small radius segments in front of as well as at the unbending point belong to parameters that affect the surface quality of continuously cast slabs. Older machines for continuous casting were designed with regard to the performance (to amount of cast slabs) rather than to the quality. Therefore, the adaptation of secondary cooling is required in order to accomplish the desired surface temperatures. The modification consists in the dynamic control of secondary cooling, surface temperatures monitoring by means of the numerical model of temperature field as well as in a prospective replacement of cooling nozzles. The paper deals with relationships of described influences and their impacts to the temperature field of cast slabs. The results are presented for the 1530x250 mm slabs that are cast in Evraz Vitkovice Steel where the main authors dynamic 3D solidification model is used to control the production. The results and experiences obtained after the replacement of cooling nozzles are compared to long-time operational data for the preceding setup of cooling nozzles. The comparison is performed with the use of data acquired from the dynamic solidification model and with the use of the statistical operational data.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 8th European Continuous Casting Conference ECCC 2014

ISBN

978-3-200-03664-2

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

1181-1190

Název nakladatele

Austrian Society for Metallurgy and Materials (ASMET)

Místo vydání

Leoben, Austria

Místo konání akce

Graz

Datum konání akce

23. 6. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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