The quality of the working rollers used for rolling rails of different profiles is determined by the chemical and structural composition of the material of the rollers and the production technology. It is therefore 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.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
The Model of Temperature Field and Chemical Heterogeneity of Solidifying Ductile-Cast-Iron Roller
Jana Dobrovska,
Jana Dobrovska
VSB-Technical University of Ostrava, Ostrava, Czech Republic
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Frantisek Kavicka,
Frantisek Kavicka
Brno University of Technology, Brno, Czech Republic
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Karel Stransky,
Karel Stransky
Brno University of Technology, Brno, Czech Republic
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Bohumil Sekanina
Bohumil Sekanina
Brno University of Technology, Brno, Czech Republic
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Jana Dobrovska
VSB-Technical University of Ostrava, Ostrava, Czech Republic
Frantisek Kavicka
Brno University of Technology, Brno, Czech Republic
Karel Stransky
Brno University of Technology, Brno, Czech Republic
Bohumil Sekanina
Brno University of Technology, Brno, Czech Republic
Paper No:
AJTEC2011-44081, T10021; 10 pages
Published Online:
March 1, 2011
Citation
Dobrovska, J, Kavicka, F, Stransky, K, & Sekanina, B. "The Model of Temperature Field and Chemical Heterogeneity of Solidifying Ductile-Cast-Iron Roller." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T10021. ASME. https://doi.org/10.1115/AJTEC2011-44081
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