Changes of the Chemical Composition of Continuously Cast Steel Slab and their Relation to Breakout

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU99856" target="_blank" >RIV/00216305:26210/12:PU99856 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Changes of the Chemical Composition of Continuously Cast Steel Slab and their Relation to Breakout

Original language description

The solidification and cooling of a continuously cast slab and the simultaneous heating of the mold is a very complicated problem of three-dimensional (3D) transient heat and mass transfer. The solving of such a problem is impossible without numerical models of the temperature field of the concasting processed through the concasting machine. Experimental research and measurements have to take place simultaneously with numerical computation, to be confronted with the numerical model and make it more accurate throughout the process. An important area of the caster is the secondary cooling zone, which is subdivided into thirteen sections. In this zone, where the slab is beginning to straighten the breakout of the shell can occur in points of increased local chemical and temperature heterogeneity of the steel, from increased tension as a result of the bending of the slab and also from a high local concentration of non-metal and slag inclusions. Especially dangerous are the changes in the chemical composition of the steel during the actual concasting. In the case of two melts one immediately after the other, this could lead to immediate interruption in the concasting and a breakout. The material, physical, chemical and technological parameters, which both melts differed in were determined. If the dimensionless analysis is applied for assessing and reducing the number of these parameters, then it is possible to express the level of risk of breakout as a function of five dimensionless criteria.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/GAP107%2F11%2F1566" target="_blank" >GAP107/11/1566: Analysis of influence of metallurgical-material and technological parameters of concast steel blanks on their quality and process stability</a><br>

Continuities

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

Publication year

2012

Confidentiality

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

Article name in the collection

The 4th International Conference on Crack Paths (CP 2012). Book of Abstracts and CD

ISBN

9788895940441

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

89-89

Publisher name

University of Parma

Place of publication

Parma, Italy

Event location

Parma

Event date

Sep 19, 2012

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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