scholarly journals Transport of heat and material properties in continuous casting of steel

2021 ◽  
Vol 1909 (1) ◽  
pp. 012060
Author(s):  
Helmut J. Holl ◽  
Gottfried Simon
10.14311/564 ◽  
2004 ◽  
Vol 44 (3) ◽  
Author(s):  
J. Heger

A finite element method algorithm is presented that enables numerical simulation of real phenomena that take place during an industrial process of continuous casting of steel. The algorithm takes into account all known kinds of nonlinearities: material nonlinearity connected to the nonlinear temperature dependence of material properties, large deformations from the process of material forming and contacts between the slab and rollers of the strand. Received results describe the sensitivity of the product to crack initiation, not only during the process of continuous casting itself but also in the finished and cooled slab.


2017 ◽  
Vol 4 (6) ◽  
pp. 170062 ◽  
Author(s):  
M. Vynnycky ◽  
S. Saleem ◽  
K. M. Devine ◽  
B. J. Florio ◽  
S. L. Mitchell ◽  
...  

Asymptotic methods are employed to revisit an earlier model for oscillation-mark formation in the continuous casting of steel. A systematic non-dimensionalization of the governing equations, which was not carried out previously, leads to a model with 12 dimensionless parameters. Analysis is provided in the same parameter regime as for the earlier model, and surprisingly simple analytical solutions are found for the oscillation-mark profiles; these are found to agree reasonably well with the numerical solution in the earlier model and very well with fold-type oscillation marks that have been obtained in more recent experimental work. The benefits of this approach, when compared with time-consuming numerical simulations, are discussed in the context of auxiliary models for macrosegregation and thermomechanical stresses and strains.


2005 ◽  
Vol 36 (3) ◽  
pp. 355-371 ◽  
Author(s):  
A. Badri ◽  
T. T. Natarajan ◽  
C. C. Snyder ◽  
K. D. Powers ◽  
F. J. Mannion ◽  
...  

2021 ◽  
pp. 17-22
Author(s):  
A. Yu. Tretyak ◽  
◽  
Qiang Wang ◽  
Chun-Lei Wu ◽  
E. I. Shifrin ◽  
...  

Today, the most promising and effective method of quality control of the continuously cast billets is electromagnetic stirring of the melt. In this case, an important component is the effect of the stirring on the jet in the nozzle. Moreover, as research has shown, this method is highly dependent on the configuration of the inner channel of the nozzle. Research have shown that positive or negative taper of the inner surface of the nozzle allows to obtain different results after applying EMS. Taper control completely changes the pattern of the melt flow and its deceleration in the mold, especially when it is casting of large billets. The results of the research show that minor changes in the taper of the nozzle significantly increase the effect of EMS implementation, which is observed already at 0.27 % of positive the taper and increases to 0.54%.


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