An mixed analytical-numerical modeling for plate under hot rolling---Part Ⅰ: Temperature model
首发时间:2009-01-14
Abstract:A temperature model for plate hot rolling is developed by using series function solution. The model is a part of mixed analytical-numerical modeling aiming at the prediction of deformation variables and microstructure evolution for plate production by hot rolling. The model takes into account the heat generated by deformation and the cooling effects resulted from hydraulic descale sprays, work roll chilling, radiation heat flux in interstand areas and on-line water cooling operations. To accomplish the continuous computation of temperatures in the whole process, compatible relationships of constants in the solutions are successfully established between passes and operations. The model is employed in the simulation of an experimental 3-passes rolling of type 304 stainless steel plate and an industrial 12-passes rolling of Q235A steel plate. The comparison of computed temperature with measured data demonstrates a favorable coincidence, which verifies the validity of the model. The application also indicates that the model can be easily employed in simulation of multi-pass rolling and other continuous operations, with a quite short computational time.
keywords: Mathematical model Temperature Steel plate products Hot rolling
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An mixed analytical-numerical modeling for plate under hot rolling---Part Ⅰ: Temperature model
摘要:A temperature model for plate hot rolling is developed by using series function solution. The model is a part of mixed analytical-numerical modeling aiming at the prediction of deformation variables and microstructure evolution for plate production by hot rolling. The model takes into account the heat generated by deformation and the cooling effects resulted from hydraulic descale sprays, work roll chilling, radiation heat flux in interstand areas and on-line water cooling operations. To accomplish the continuous computation of temperatures in the whole process, compatible relationships of constants in the solutions are successfully established between passes and operations. The model is employed in the simulation of an experimental 3-passes rolling of type 304 stainless steel plate and an industrial 12-passes rolling of Q235A steel plate. The comparison of computed temperature with measured data demonstrates a favorable coincidence, which verifies the validity of the model. The application also indicates that the model can be easily employed in simulation of multi-pass rolling and other continuous operations, with a quite short computational time.
关键词: Mathematical model;Temperature;Steel plate products;Hot rolling
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