Publication detail
Characterization of roll bite heat transfers in hot steel strip rolling and their influence on roll thermal fatigue degradation
LEGRAND, N. WEISZ-PATRAULT, D. HORSKY, J. LUKS, T. LABBE, N. PICARD, M. EHRLACHER, A.
Czech title
Characterization of roll bite heat transfers in hot steel strip rolling and their influence on roll thermal fatigue degradation
English title
Characterization of roll bite heat transfers in hot steel strip rolling and their influence on roll thermal fatigue degradation
Type
conference paper
Language
en
Original abstract
A temperature sensor with a thermocouple placed at similar to 0.5 mm from roll surface is used in hot rolling conditions to evaluate by inverse calculation heat transfers in the roll bite. Simulation analysis under industrial hot rolling conditions with short contact lengths (e.g. short contact times) and high rolling speeds (7 m./s) show that the temperature sensor + inverse analysis with a high acquisition frequency (> 1000 Hz) is capable to predict accurately (5 to 10% error) the roll bite peak of temperature. However as heat flux is more sensitive to noise measurement, the peak of heat flux in the bite is under-estimated (20% error) by the inverse calculation and thus the average roll bite heat flux is also interesting information from the sensor (these simulation results will be verified with an industrial trial that is being prepared).
Czech abstract
A temperature sensor with a thermocouple placed at similar to 0.5 mm from roll surface is used in hot rolling conditions to evaluate by inverse calculation heat transfers in the roll bite. Simulation analysis under industrial hot rolling conditions with short contact lengths (e.g. short contact times) and high rolling speeds (7 m./s) show that the temperature sensor + inverse analysis with a high acquisition frequency (> 1000 Hz) is capable to predict accurately (5 to 10% error) the roll bite peak of temperature. However as heat flux is more sensitive to noise measurement, the peak of heat flux in the bite is under-estimated (20% error) by the inverse calculation and thus the average roll bite heat flux is also interesting information from the sensor (these simulation results will be verified with an industrial trial that is being prepared).
English abstract
A temperature sensor with a thermocouple placed at similar to 0.5 mm from roll surface is used in hot rolling conditions to evaluate by inverse calculation heat transfers in the roll bite. Simulation analysis under industrial hot rolling conditions with short contact lengths (e.g. short contact times) and high rolling speeds (7 m./s) show that the temperature sensor + inverse analysis with a high acquisition frequency (> 1000 Hz) is capable to predict accurately (5 to 10% error) the roll bite peak of temperature. However as heat flux is more sensitive to noise measurement, the peak of heat flux in the bite is under-estimated (20% error) by the inverse calculation and thus the average roll bite heat flux is also interesting information from the sensor (these simulation results will be verified with an industrial trial that is being prepared).
Keywords in Czech
hot strip rolling; steel; roll bite heat transfer; inverse thermal analysis; thermal fatigue
Keywords in English
hot strip rolling; steel; roll bite heat transfer; inverse thermal analysis; thermal fatigue
Released
13.06.2013
Publisher
TRANS TECH PUBLICATIONS LTD
Location
SWITZERLAND
ISBN
9783037857199
ISSN
1013-9826
Book
16th ESAFORM Conference on Material Forming
Number
554-557
Pages from–to
1555–1569
Pages count
15
BIBTEX
@inproceedings{BUT147044,
author="Jaroslav {Horský} and Tomáš {Luks},
title="Characterization of roll bite heat transfers in hot steel strip rolling and their influence on roll thermal fatigue degradation",
booktitle="16th ESAFORM Conference on Material Forming",
year="2013",
number="554-557",
month="June",
pages="1555--1569",
publisher="TRANS TECH PUBLICATIONS LTD",
address="SWITZERLAND",
isbn="9783037857199",
issn="1013-9826"
}