Research on Solid Shell Growth during Continuous Steel Casting

The continuous steel casting process must simultaneously meet the requirements for production performance, quality and safety against breakouts. Knowing the thickness of the solidified shell, particularly at the exit of the mould, is useful for the casting process control and breakout prevention. Sh...

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Main Authors: Marek Velička, René Pyszko, Mario Machů, Jiří Burda, Tomáš Kubín, Hana Ovčačíková, David Rigo
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/15/5302
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author Marek Velička
René Pyszko
Mario Machů
Jiří Burda
Tomáš Kubín
Hana Ovčačíková
David Rigo
author_facet Marek Velička
René Pyszko
Mario Machů
Jiří Burda
Tomáš Kubín
Hana Ovčačíková
David Rigo
author_sort Marek Velička
collection DOAJ
description The continuous steel casting process must simultaneously meet the requirements for production performance, quality and safety against breakouts. Knowing the thickness of the solidified shell, particularly at the exit of the mould, is useful for the casting process control and breakout prevention. Shell thickness is difficult to measure during casting; in practice, it is predicted by indirect methods and models. But after undesired rupture of the shell and leakage of the liquid steel, it is possible to measure the shell thickness directly. This article is focused on the problem of the growth and measurement of the solid shell obtained after the breakout of a round block with a diameter of 410 mm. An original methodology was developed in which a surface mesh of points was created from the individual scanned parts of the block using a 3D laser scanner. Research has shown differences of up to 6 mm between the maximum and minimum shell thickness at the mould exit. A regression function of the average shell thickness on time was found. The results of the real shell growth were further used for the verification of the original numerical model of cooling and solidification of the round block.
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spelling doaj.art-add6cfb832a846de89e4ae19a2f62a1f2023-11-18T23:11:30ZengMDPI AGMaterials1996-19442023-07-011615530210.3390/ma16155302Research on Solid Shell Growth during Continuous Steel CastingMarek Velička0René Pyszko1Mario Machů2Jiří Burda3Tomáš Kubín4Hana Ovčačíková5David Rigo6Department of Thermal Engineering, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Thermal Engineering, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Thermal Engineering, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Thermal Engineering, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Machine and Industrial Design, Faculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Thermal Engineering, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Thermal Engineering, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicThe continuous steel casting process must simultaneously meet the requirements for production performance, quality and safety against breakouts. Knowing the thickness of the solidified shell, particularly at the exit of the mould, is useful for the casting process control and breakout prevention. Shell thickness is difficult to measure during casting; in practice, it is predicted by indirect methods and models. But after undesired rupture of the shell and leakage of the liquid steel, it is possible to measure the shell thickness directly. This article is focused on the problem of the growth and measurement of the solid shell obtained after the breakout of a round block with a diameter of 410 mm. An original methodology was developed in which a surface mesh of points was created from the individual scanned parts of the block using a 3D laser scanner. Research has shown differences of up to 6 mm between the maximum and minimum shell thickness at the mould exit. A regression function of the average shell thickness on time was found. The results of the real shell growth were further used for the verification of the original numerical model of cooling and solidification of the round block.https://www.mdpi.com/1996-1944/16/15/5302continuous casting of steelshell thicknesslaser scannerbreakoutmodelling
spellingShingle Marek Velička
René Pyszko
Mario Machů
Jiří Burda
Tomáš Kubín
Hana Ovčačíková
David Rigo
Research on Solid Shell Growth during Continuous Steel Casting
Materials
continuous casting of steel
shell thickness
laser scanner
breakout
modelling
title Research on Solid Shell Growth during Continuous Steel Casting
title_full Research on Solid Shell Growth during Continuous Steel Casting
title_fullStr Research on Solid Shell Growth during Continuous Steel Casting
title_full_unstemmed Research on Solid Shell Growth during Continuous Steel Casting
title_short Research on Solid Shell Growth during Continuous Steel Casting
title_sort research on solid shell growth during continuous steel casting
topic continuous casting of steel
shell thickness
laser scanner
breakout
modelling
url https://www.mdpi.com/1996-1944/16/15/5302
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