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Metallurgist
Published in: Metallurgist 11-12/2020

16-03-2020

Prediction of Conditions for Occurrence of Thermal Fatigue Cracks on the Surface of Continuous Rollers of Slab CCMS

Authors: N. V. Telin, N. N. Sinitsyn

Published in: Metallurgist | Issue 11-12/2020

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Abstract

The authors propose a technique for predicting the conditions for the appearance of thermal fatigue cracks on the surface of rotating continuous rollers of slab continuous-casting machines (CCMs) based on the asymptotic analysis of the problem of thermoelasticity on planar deformation. The technique enables to estimate tension, displacements, and deformations in the surface layer of rollers considering the magnitude and nature of the thermal load, and the angular velocity of rotation. It can serve as the basis for choosing the material for the production of rollers, the conditions for their cooling, and the rhythm of casting. The effectiveness and justification of the proposed method are confirmed by an experiment.
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Literature
1.
G. G. Bauman and G. Schaefer, “Temperature and thermal stresses in rollers and rolls,” Chyornye Metally, No. 2, 11–18 (1971).
2.
L. V. Bulanov, L. G. Korzunov, E. P. Parfenov, et al., Continuous-Casting Machines. Theory and Calculation [in Russian], G. A. Shalaev (editor), Uralsky Tsentr PR i Reklamy, Yekaterinburg (2003).
3.
P. O. Marushchak, R. T. Bischan, D. Ya. Baran, and V. N. Brevus, “Installation for physical modeling of CCM roller operation under conditions of thermal fatigue,” Metallurg, No. 9, 50–61 (2011).
4.
B. A. Morozov, V. A. Levchenko, and V. M. Shustorovich, “A stand for studying the thermal fatigue strength of material of rollers of continuous-casting machines,” Tr. Vsesoyuz. Nauch.-Issled. i Proyekt.-Konstr. In-ta Metall. Mash., No. 61, 157–162 (1979).
5.
Rules for the Technical Operation of the Mechanical Equipment of Continuous-Casting Machines [in Russian], Metallurgiya, Moscow (1991).
6.
Yu. A. Samoilovich, V. I. Timoshpolsky, V. A. Goryainov, and S. M. Kabishov, “Improvement of durability of CCM support rollers,” Litiyo i Metall., No. 1 (45), 49–55 (2008).
7.
N. V. Telin and N. N. Sinitsyn, “Evaluation of extreme temperature conditions for the service of continuous rollers of continuouscasting machines,” Stal, No. 12, 45–47 (2015).
8.
N. V. Telin and N. I. Shestakov, “Dynamics of the non-axisymmetric temperature field of a hollow rotating cylinder,” Teploenergetika, No. 8, 72–76 (2005).
9.
S. P. Timoshenko and J. Goodier, Theory of Elasticity [Translated from English, G. S. Shapiro(editor)], 2nd ed., Nauka. Glav. Red. Fiz.-Mat. Lit., Moscow (1979).
Metadata
Title
Prediction of Conditions for Occurrence of Thermal Fatigue Cracks on the Surface of Continuous Rollers of Slab CCMS
Authors
N. V. Telin
N. N. Sinitsyn
Publication date
16-03-2020
Publisher
Springer US
Published in
Metallurgist / Issue 11-12/2020
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-020-00938-5

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