1. AVALIAÇÃO NUMÉRICA DA DISTRIBUIÇÃO DE TEMPERATURA EM CILINDROS DE LAMINAÇÃO.
- Author
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de Lira Júnior, José Claudino, Henríquez, Jorge Recarte, and Charamba Dutra, José Carlos
- Subjects
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TEMPERATURE distribution , *ROLLING-mills , *HOT rolling , *THERMODYNAMIC cycles , *MATHEMATICAL models of thermodynamics , *HEAT transfer , *SURFACE temperature , *WATER jets , *MATHEMATICAL models - Abstract
In hot rolling processes occur changes in the profile of the rolling mill rolls (expansion and contraction) and constant wear due to mechanical stress and continuous thermal cycles of heating/cooling caused by contact rolled material- working roll and the cooling system by water jets in their surface, decreasing their lifetime. This paper presents a computational model to simulate the thermal performance of rolling mill rolls. The model was developed using the finite volume method for a transient two-dimensional system and allows calculating the temperature distribution of the rolling mill rolls under various conditions of service. Here it is investigated the influence of flow rate and temperature of the cooling water on the temperature distribution. The results show that the water temperature has greater influence than the water flow to control the surface temperature of the cylinders. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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