Publication detail
The model of temperature field and chemical heterogeneity of solidifying ductile-cast iron roller
KAVIČKA, A. DOBROVSKÁ, J. STRÁNSKÝ, K. SEKANINA, B.
Czech title
Model teplotního pole a chemické heterogenity tuhnoucího válce z tvárné litiny
English title
The model of temperature field and chemical heterogeneity of solidifying ductile-cast iron roller
Type
conference paper
Language
en
Original abstract
The quality of the working rollers ussed for rolling of different profiles is determined by the chemical and structural composition of the material of the rollers and the production technology. It is therefor necessary to find and ensure optimal relationships between the matrix structure and the resultant values of the mechanical properties of the rollers in order to maximize the length of life. The requirements introduced here cannot be ensured without perfect knowledge of the course of solidification, cooling and heat treatment of the cast rollers as well as the kinetics of the temperature field of the casting and mould. The kinetics of the solidification has a measurable and non-negligible influence on the chemical and structural heterogeneity of the investigated type of cast- iron. Tying on to the results of the model of the temperature field of the cast rollers, an original methodology was developed for the measurement of chemical microheterogeneity.
Czech abstract
Kvalita pracovních válců používaných pro válcování různých profilů je určena chemickým a strukturálním složením materiálu a výrobní technologií. Je nutné zajistit optimální vztah mezi strukturou a hodnotami mechanických vlastností válců zajišťující maximální životnost. To vyžaduje perfektní znalost průběhu tuhnutí, chladnutí a tepelného zpracování válců včetně kinetiky teplotního pole odlitku a formy, která ovlivňuje chemickou a strukturální heterogenitu zkoumané tvárné litiny. Je vyvinuta originální metoda měření chemické mikroheterogenity.
English abstract
The quality of the working rollers ussed for rolling of different profiles is determined by the chemical and structural composition of the material of the rollers and the production technology. It is therefor necessary to find and ensure optimal relationships between the matrix structure and the resultant values of the mechanical properties of the rollers in order to maximize the length of life. The requirements introduced here cannot be ensured without perfect knowledge of the course of solidification, cooling and heat treatment of the cast rollers as well as the kinetics of the temperature field of the casting and mould. The kinetics of the solidification has a measurable and non-negligible influence on the chemical and structural heterogeneity of the investigated type of cast- iron. Tying on to the results of the model of the temperature field of the cast rollers, an original methodology was developed for the measurement of chemical microheterogeneity.
Keywords in Czech
válce z tvárné litiny, průběh tuhnutí, kinetika teplotního pole, měření chemické mikroheterogenity
Keywords in English
ductile-cast iron roller, course of solidification, kinetics of the temperature field, measurement of chemical icroheterogeneity
RIV year
2011
Released
13.03.2011
Publisher
ASME
Location
Honolulu USA
ISBN
978-0-7918-3892-1
Book
Proceedings of the ASME/JSME 2011 (AJTEC2011)
Edition number
8
Pages from–to
T44081–T44081
Pages count
10
BIBTEX
@inproceedings{BUT36680,
author="František {Kavička} and Jana {Dobrovská} and Karel {Stránský} and Bohumil {Sekanina},
title="The model of temperature field and chemical heterogeneity of solidifying ductile-cast iron roller",
booktitle="Proceedings of the ASME/JSME 2011 (AJTEC2011)",
year="2011",
month="March",
pages="T44081--T44081",
publisher="ASME",
address="Honolulu USA",
isbn="978-0-7918-3892-1"
}