Comparison of the Temperature Field Continuously Cast Steel Slabs of Different Chemical Composition

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU100093" target="_blank" >RIV/00216305:26210/12:PU100093 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Comparison of the Temperature Field Continuously Cast Steel Slabs of Different Chemical Composition

Original language description

Original numerical model was applied to the simulation of the transient temperature field of concast steel slab of two different chemical composition. The model solves the Fourieor-Kirchhoffs equation of the temperature field of slab- crystallizer system respectively slab-ambient system with these main thermophysical parameters : thermal conductivity, specific heat capacity, density and enthalpy. When both melts follow closely after each other, the critical state of so called break out occurs at a certain point secondary cooling zone of a caster. It is probably a combination of surface defects. However different chemical composition of two steels and their mixing is apparently decisive. Therefore the temperature model has simulated the temperature history of every point of a cross-section of a slab during its movement through the whole caster from the level of the melt in the crystallizer to the cutting torch for both melts and and for their mixture. Calculation of the temperature field of a slab has focused mainly on the part of the slab before the break out and its surroundings. Calculation results were compared graphically by means of a graph of temperatures in characteristic points of the cross section, a graph of isotherms in the critical cross-section passing through the break out including isoliquidus and isosolidus, a graph of isotherms in longitudinal sections and a graph of increase in thickness of a solidified shell. The results of the temperature field can establish a model of the chemical heterogeneity of steel supported by material expertise on samples taken from the break out

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

—

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

METAL 2012 Conference proceedings (CD-ROM)

ISBN

978-80-87294-31-4

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

142-147

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

May 23, 2012

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—