Abstract
In the hot strip rolling process, improvement of the mechanical properties of the strip steel has been a focus for a long time. After rough rolling, high temperature transfer bars are transported by conveyors through the heat retention panel in order to decrease the temperature difference between the head and the tail of the transfer bars. During the heat retention process, the temperature distribution of the transfer bars have a great influence on the mechanical properties of strip steel. A three-dimensional numerical model of a traditional passive heat retention panel is developed to investigate the temperature difference between the head and the tail of the transfer bars. A comparison with the in-situ data from a steel company in Taiwan shows that the present model works well for the prediction of temperature values of the head and the tail and temperature differences of the transfer bars. Based on the developed model, a three-dimensional numerical model of the acting-type heat retention panel is constructed in order to predict whether the temperature difference decreases during the heat retention process.
Highlights
The steel industry in the global market is booming
On theand studies it isbar important to decrease the temperature differenceThe traditional passive heat retention panel is widely used in many steel plants, but its ability to hold between the head and the tail of the transfer bar to enhance the quality of steel products
This study provides an analysis of the traditional passive heat retention panel and the actingheat retention panel based on the theory of fluid mechanics and the theory of heat transfer
Summary
The steel industry in the global market is booming. Due to increased market competition, the demand for quality steel products has attracted a high level of attention in recent decades. Sci. 2019, 9, 189 and carbon reduction, as well as goals of green production, numerous numerical models and methods for the prediction of the hot strip rolling process have been developed and successfully applied to many steel plants but there have been few studies focusing on the heat retention panel. The results indicated that a heat retention panel can effectively decrease the temperature difference between the head and the tail of the transfer bar. On theand studies it isbar important to decrease the temperature differenceThe traditional passive heat retention panel is widely used in many steel plants, but its ability to hold between the head and the tail of the transfer bar to enhance the quality of steel products.
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