Computer simulation of the continuous annealing recrystallization for cold-rolled strip in galvanizing line |
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| Authors: | Jun-guang He Jiu-ba Wen Xu-dong Zhou and Xu-dong Li |
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| Institution: | [1]School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, Henan China [2]School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050 China |
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| Abstract: | The continuous heating transformation program is developed to investigate the influence of continuous annealing technological
parameters on recrystalization for cold-rolled strip in galvanizing line. This program can be used for the calculation of
the continuous annealing temperature field of strip steel, determination of the start and end time of recrystallization in
continuous heating process, and procurement of the continuous heating transformation diagram. The temperature field for continuous
annealing is simulated by means of finite difference method. Based on the Scheil superposition principle, the continuous heating
transformation curve is obtained by using time temperature transformation (TTT) curve which is measured experimentally. The
developed program has been used in practice, and the strip speed on production line increases by more than 10%. |
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