Abstract
Measuring the thickness of steel plates during the hot rolling process is crucial for getting the necessary feedback to obtain the desired values at room temperature. The dilatation and the phase transformations of steel occur during heating and subsequent cooling and rolling strongly influences the results of thickness measurements. The radiometric method provides the necessary means for making real-time and fully automatized measurements of steel thickness during rolling, if only the temperature correction is precisely known and taken into consideration. This article proves that the experimental results concerning the relative variation of steel thickness and corresponding mass-thickness variation can be correctly explained by means of the theory of metal dilatation correlated with the theory of nuclear radiation absorption when passing through a metal or metallic alloy, such as steel.
Similar content being viewed by others
References
LI Zhuang, WU Di, HU Rong. Austempering of Hot Rolled Si-Mn TRIP Steels [J]. Journal of Iron and Steel Research, International, 2006, 13(5): 41.
WANG Ren-zhong, YANG Quan, HE An-rui, et al. Strip Shape Control Capability of Hot Wide Strip Rolling Mils [J]. Journal of University of Science and Technology Beijing, 2008, 15(1): 91.
ZHANG Guo-min, XIAO Hong, WANG Chun-hua. Three-Dimensional Model for Strip Hot Rolling [J]. Journal of Iron and Steel Research, International, 2006, 13(1): 23.
LI Chang-sheng, YU Hai-liang, DENG Guan-yu, et al. Numerical Simulation of Temperature Field and Thermal Stress Field of Work Roll during Hot Strip Rolling [J]. Journal of Iron and Steel Research, International, 2007, 14(5): 18.
XIE Hai-bo, LIU Xiang-hua, WANG Guo-dong, et al. Optimization and Model of Laminar Cooling Control System for Hot Strip Mills [J]. Journal of Iron and Steel Research, International, 2006, 13(1): 18.
Iesan D. Theory of Thermoelasticity [M]. Bucharest: Romanian Academy Publishing House, 1980: 275 (in Romanian).
Gheorghies C, Crudu I. Materials Testing [M]. 3th ed. Bucharest: Technical Publishing House, 1986: 648 (in Romanian).
Aleksiuk M M, Boriscenko V A, Krascenko V P. Mechanical Testing of Materials at High Temperatures [M]. Kiev: [s. n.], 1980 (in Russian).
Chirila V, Gheorghies C. Comparative Study of the Phase Transformations of the M6 Electrotechnical Steel Through the Electrical and the Radiometric Methods [R]. Technical and Scientific Symposium of the University of Galati, Galati, 1984 (in Romanian).
Dulamita T, Florian E. Thermal, Thermochemical Treatments [M]. Bucharest: Didactic and Pedagogic Publishing House, 1982: 537 (in Romanian).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gheorghies, C., Condurache-Bota, S. Temperature correction for thickness measurements of hot rolled steel plates. J. Iron Steel Res. Int. 17, 23–29 (2010). https://doi.org/10.1016/S1006-706X(10)60192-6
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(10)60192-6