NUMERICAL EVALUATION OF TEMPERATURE DISTRIBUTION IN THE ROLLING MILL ROLLS
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 surf...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Metalurgia, Materiais e Mineração
2013-06-01
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| Series: | Tecnologia em Metalurgia, Materiais e Mineração |
| Subjects: | |
| Online Access: | http://www.tecnologiammm.com.br/files/v10n2/v10n2a10.pdf |
| Summary: | 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. |
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| ISSN: | 2176-1515 2176-1523 |