The formation of oscillation marks in the continuous casting of steel slabs

1984 ◽  
Vol 15 (3) ◽  
pp. 493-509 ◽  
Author(s):  
E. Takeuchi ◽  
J. K. Brimacombe
Keyword(s):  
Continuous Casting ◽  
Continuous Casting Of Steel ◽  
Steel Slabs ◽  
Oscillation Marks

scholarly journals On the formation of fold-type oscillation marks in the continuous casting of steel

2017 ◽  
Vol 4 (6) ◽  
pp. 170062 ◽  
Author(s):  
M. Vynnycky ◽  
S. Saleem ◽  
K. M. Devine ◽  
B. J. Florio ◽  
S. L. Mitchell ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Asymptotic Methods ◽  
Continuous Casting Of Steel ◽  
Oscillation Mark ◽  
Governing Equations ◽  
Fold Type ◽  
Parameters Analysis ◽  
Oscillation Marks ◽  
Recent Experimental Work ◽  
Type Oscillation

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.

scholarly journals Analysis of a model for the formation of fold-type oscillation marks in the continuous casting of steel

2020 ◽  
Vol 85 (3) ◽  
pp. 385-420
Author(s):  
K M Devine ◽  
M Vynnycky ◽  
S L Mitchell ◽  
S B G O’Brien
Keyword(s):  
Continuous Casting ◽  
Space Variable ◽  
Asymptotic Model ◽  
Continuous Casting Of Steel ◽  
Oscillation Mark ◽  
Temperature Dependent Viscosity ◽  
Fold Type ◽  
Oscillation Marks ◽  
Dependent Viscosity ◽  
Type Oscillation

Abstract This paper investigates the different possible behaviours of a recent asymptotic model for oscillation-mark formation in the continuous casting of steel, with particular focus on how the results obtained vary when the heat transfer coefficient ($m$), the thermal resistance ($R_{mf}$) and the dependence of the viscosity of the flux powder as a function of temperature, $\mu _{f}\left ( T\right ),$ are changed. It turns out that three different outcomes are possible: (I) the flux remains in molten state and no solid flux ever forms; (II) both molten and solid flux are present, and the profile of the oscillation mark is continuous with respect to the space variable in the casting direction; (III) both molten and solid flux are present, and the profile of the oscillation mark is discontinuous with respect to the space variable in the casting direction. Although (I) gave good agreement with experimental data, it suffered the drawback that solid flux is typically observed during actual continuous casting; this has been rectified in this work via alternative (II). On the other hand, alternative (III) can occur as a result of hysteresis-type phenomenon that is encountered in other flows that involve temperature-dependent viscosity; in the present case, this manifests itself via the possibility of multiple states for the oscillation-mark profile at the instants in time when solid flux begins to form and when it ceases to form.

Transient fluid flow and superheat transport in continuous casting of steel slabs

2005 ◽  
Vol 36 (6) ◽  
pp. 801-823 ◽  
Author(s):  
B. Zhao ◽  
B. G. Thomas ◽  
S. P. Vanka ◽  
R. J. O’Malley
Keyword(s):  
Fluid Flow ◽  
Continuous Casting ◽  
Continuous Casting Of Steel ◽  
Steel Slabs

Heat flow, gap formation and break-outs in the continuous casting of steel slabs

1976 ◽  
Vol 7 (2) ◽  
pp. 177-189 ◽  
Author(s):  
A. Grill ◽  
K. Sorimachi ◽  
J. K. Brimacombe
Keyword(s):  
Heat Flow ◽  
Continuous Casting ◽  
Continuous Casting Of Steel ◽  
Gap Formation ◽  
Steel Slabs

Transient Flow and Temperature Transport in Continuous Casting of Steel Slabs

2005 ◽  
Vol 127 (8) ◽  
pp. 807-807 ◽  
Author(s):  
B. Zhao ◽  
B. G. Thomas ◽  
S. P. Vanka ◽  
R. J. O'Malley
Keyword(s):  
Continuous Casting ◽  
Transient Flow ◽  
Continuous Casting Of Steel ◽  
Steel Slabs

scholarly journals Effect of Mold Oscillation Curves on Heat Transfer and Lubrication Behaviour in Mold at High Speed Continuous Casting of Steel Slabs

1992 ◽  
Vol 78 (1) ◽  
pp. 113-120 ◽  
Author(s):  
Mikio SUZUKI ◽  
Shinobu MIYAHARA ◽  
Toru KITAGAWA ◽  
Shigetaka UCHIDA ◽  
Takashi MORI ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
High Speed ◽  
Continuous Casting Of Steel ◽  
Mold Oscillation ◽  
Steel Slabs

Investigation of Continuous Casting of Steel Slabs

1978 ◽  
Vol 14 (7) ◽  
pp. 232-233 ◽  
Author(s):  
K. Lehofer ◽  
J. Hargittai ◽  
S. Szili
Keyword(s):  
Continuous Casting ◽  
Continuous Casting Of Steel ◽  
Steel Slabs
Sign in / Sign up

Export Citation Format

Share Document