Publication detail
The Optimization of a Concasting by two numerical Models
ŠTĚTINA, J. KAVIČKA, F. SEKANINA, B. RAMÍK, P. HEGER, J. STRÁNSKÝ, K. DOBROVSKÁ, J. DOBROVSKÁ, V. VELIČKA, B. KOŽUŠNÍK, Z. MASARIK, M. KOZELSKÝ, V.
Czech title
Optimalizace kontilití použitím dvou numerických modelů.
English title
The Optimization of a Concasting by two numerical Models
Type
conference paper
Language
en
Original abstract
An original three-dimensional numerical model (the first of the two) of a concasting temperature field had been used. This model is able to simulate the temperature field of a concasting machine (CCM) as a whole, or any of its parts. Simultaneously, together with the numerical computation, the experimental research and measuring have to take place not only to be confronted with the numerical model, but also to make it more accurate in the course of the process. The second original numerical model of dendritic segregation of elements. In order to apply this model, it is necessary to analyze the heterogeneity of samples of the constituent elements and impurities in characteristic places of the solidifying slab. The samples are taken from places which provide information on the distribution of elements under both standard and extreme conditions for solidification, where the mean solidification (crystallization) rate is known for points between the solidus and liquidus curves. Using this method it is possible to forecast the occurrence of the critical points of a blank from the viewpoint of its susceptibility to crack and fissure. Verification of technological inpacts of optimization resulting from both models is made at real industrial CCM. Both models can be used also for continuous casting of billets.
Czech abstract
Originální 3D numerický model teplotního pole při kontinuálním odlévání umožňuje řešit licí stroj jako celek i jeho jednotlivé části. Současně probíhá experimentální výzkum.. Druhý model je numerický model segregace prvků. Je nezbytná analyza heterogenity vzorků konstitučních prvků a nečistot v charakteristických místech tuhnoucí bramy. Použitím této metody je možné předvídat kritická místa bramy s ohledem na nebezpečí tvorby trhlin.
English abstract
An original three-dimensional numerical model (the first of the two) of a concasting temperature field had been used. This model is able to simulate the temperature field of a concasting machine (CCM) as a whole, or any of its parts. Simultaneously, together with the numerical computation, the experimental research and measuring have to take place not only to be confronted with the numerical model, but also to make it more accurate in the course of the process. The second original numerical model of dendritic segregation of elements. In order to apply this model, it is necessary to analyze the heterogeneity of samples of the constituent elements and impurities in characteristic places of the solidifying slab. The samples are taken from places which provide information on the distribution of elements under both standard and extreme conditions for solidification, where the mean solidification (crystallization) rate is known for points between the solidus and liquidus curves. Using this method it is possible to forecast the occurrence of the critical points of a blank from the viewpoint of its susceptibility to crack and fissure. Verification of technological inpacts of optimization resulting from both models is made at real industrial CCM. Both models can be used also for continuous casting of billets.
Keywords in English
concasting machine, temperature field, chemical heterogenity, numerical models, experimental research
RIV year
2001
Released
30.10.2001
Publisher
T-print, s.r.o. Třinec
Location
Třinec
ISBN
80-238-7643-0
Book
Continuous casting of billets The conference proceedings
Pages count
16
BIBTEX
@inproceedings{BUT5968,
author="Josef {Štětina} and František {Kavička} and Bohumil {Sekanina} and Pavel {Ramík} and Jaromír {Heger} and Karel {Stránský} and Jana {Dobrovská} and Věra {Dobrovská} and Bohuslav {Velička} and Zdeněk {Kožušník} and Miloš {Masarik} and Václav {Kozelský},
title="The Optimization of a Concasting by two numerical Models",
booktitle="Continuous casting of billets The conference proceedings",
year="2001",
month="October",
publisher="T-print, s.r.o. Třinec",
address="Třinec",
isbn="80-238-7643-0"
}