Secondary Cooling Parameters Optimization in Continuous Casting Process Based on Ant Colony System Algorithm

Author(s):  
Xiaojie Zhang
2016 ◽  
Vol 35 (6) ◽  
pp. 583-589 ◽  
Author(s):  
Xiangzhou Gao ◽  
Shufeng Yang ◽  
Jingshe Li ◽  
Hang Liao

AbstractTo improve the center segregation of billet for 50CrMo structural alloy steel, a 3D numerical model of solidification and heat transfer process for continuous casting had been established. The influence law of continuous casting process parameters on the secondary dendrite arm spacing (SDAS) and equiaxed crystal ratio had been obtained. It was shown that reducing superheat and casting speed and increasing the secondary cooling intensity could decrease SDAS. Reducing any one of the three parameters could increase the equiaxed crystal ratio. Adjusting only secondary cooling intensity could not make the SDAS and equiaxed crystal ratio change in the desired direction, but regulating the other two parameters could supply this gap. After optimizing the continuous casting process parameters of 50CrMo billet, the defect of center segregation was solved basically.


2014 ◽  
Vol 998-999 ◽  
pp. 650-653
Author(s):  
Jin Hong Zhang ◽  
Jun Li Jia ◽  
Guo Zhen Wang

In the continuous casting production casting speed and casting temperature fluctuates frequently, the secondary cooling control of slab surface temperature fluctuation is too big problem, proposes a radical.The utility of the pulling speed cascade water distribution control method, a kind of development.secondary cooling control model for slab continuous casting.


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