Abstract
The experimental method for physical modeling of operating conditions of a continuous billet casting machine (CCM) rolls is developed to estimation the temperature field and especially the temperature at the surface of the roll by measuring the temperature with the thermocouples (fully embedded) at multiple point inside the roll. The physical model allows for the automated recording of the quasi-stationary temperature field in the rolls surface layers and at various distances from its working surface. The main mechanisms of impact failure in the service exposed CCM roll material are investigated at the maximum temperature of the thermal cycle.DOI: http://dx.doi.org/10.5755/j01.mech.19.4.5046
Highlights
The incidents of in-service failure in continuous casting machines (CCM) rolls are connected with the nucleation and propagation of crack-like defects on their working surface [1]
In the process of operation, dynamic overloading of the structure may occur, it is necessary to reveal the regularities in dynamic failure of the CCM roll material with in-service defects at operating temperatures [4]
The procedure is developed and the experimental setup is created for physical modeling of operating conditions of the CCM roll with the automated recording of measurement results
Summary
The incidents of in-service failure in continuous casting machines (CCM) rolls are connected with the nucleation and propagation of crack-like defects on their working surface [1]. In the process of operation, dynamic overloading of the structure may occur, it is necessary to reveal the regularities in dynamic failure of the CCM roll material with in-service defects at operating temperatures [4]. Another important task is to create physical models of CCM rolls, which would allow reproducing temperature conditions of the continuous casting process, and providing for the possibility to calculate the stressstrain state of the structure [5, 6]. The purpose of this work is to investigate temperature conditions of the CCM roll operation on a developed physical model, and assess impact toughness of the CCM roll material with inservice defects
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