Publication detail
Prediction of cracks of continuously cast steel slab
KAVIČKA, F. SEKANINA, B. ŠTĚTINA, J. STRÁNSKÝ, K. DOBROVSKÁ, J.
Czech title
Predikce trhlin kontinuálně odlévaných ocelových bram
English title
Prediction of cracks of continuously cast steel slab
Type
conference paper
Language
en
Original abstract
Solidification and cooling of a continuously cast steel slab and simultaneously heating of a crystallizer is a very complicated problem of non-stationary heat and mass transfer. An original three-dimensional numerical model of a concasting temperature field had been used. Simultaneously the experimental research and measuring have to take place. The second original numerical model is 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. 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.
Czech abstract
Tuhnutí a chladnutí kontinuálně litých bram je velmi komplikovaný problém nestacionárního přenosu tepla a hmoty. Pro řešení je použito originálního třírozměrného numerického modelu teplotního pole, současně s experimentálním výzkumem a měřením. Druhým originálním modelem je model dendritické segregace prvků. ve vybraných vzorcích Pro aplikaci tohoto modelu je nutná analyza heterogeneity určujících prvků a nečistot ve vybraných vzorcích v charakteristických místech tuhnoucí bramy. Použitím této metody je možné předpovědět přítomnost kritických mist z hlediska náchylnosti ke vzniku trhlin.
English abstract
Solidification and cooling of a continuously cast steel slab and simultaneously heating of a crystallizer is a very complicated problem of non-stationary heat and mass transfer. An original three-dimensional numerical model of a concasting temperature field had been used. Simultaneously the experimental research and measuring have to take place. The second original numerical model is 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. 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.
Keywords in Czech
kontinuální odlévání bram, teplotní pole, chemická heterogenita, numerický model, predikce vzniku trhlin
Keywords in English
continuous casting of slabs, temperature field, chemical heterogeneity, numerical model, prediction of cracks
RIV year
2013
Released
25.06.2013
Publisher
Žilinská univerzita v Žiline
Location
Žilina
ISBN
978-80-554-0715-9
Book
32. Stretnutie katedier mechaniky tekutin a termomechaniky Hydro/Termo Zborník príspevkov
Pages from–to
117–120
Pages count
4
BIBTEX
@inproceedings{BUT100349,
author="František {Kavička} and Bohumil {Sekanina} and Josef {Štětina} and Karel {Stránský} and Jana {Dobrovská},
title="Prediction of cracks of continuously cast steel slab",
booktitle="32. Stretnutie katedier mechaniky tekutin a termomechaniky Hydro/Termo Zborník príspevkov",
year="2013",
month="June",
pages="117--120",
publisher="Žilinská univerzita v Žiline",
address="Žilina",
isbn="978-80-554-0715-9"
}