Conclusions
Wear of a periclase-lime steel teeming ladle refractory lining is a complex physicochemical process in which it is practically impossible to distinguish a predominant elementary direction of action of the molten slag and metal.
Replacement of liquid synthetic slags with solid slag-forming mixtures in ladle desulfurization of steel does not have a significant influence on wear of the lining working layer.
An increase in the amplitude and number of thermal cycles significantly increases formation of cracks in the refractory lining and, consequently, accelerates its wear. An increase in temperature gradient within the refractory layer significantly increases crack formation.
The presence of high-temperature contact of the periclase-lime lining working layer with strong deoxidizers accelerates its wear.
Reduction of the magnesium and calcium of the refractories by the carbon of the binder under ladle service conditions may occur only with escape of gaseous CO through the reinforcing layer and the joints of the refractory lining in special gas escape holes in the ladle shell.
Article PDF
Similar content being viewed by others
References
G. S. Ershov and V. A. Chernyakov, Interaction of the Phases in Melting of Alloy Steels [in Russian], Metallurgiya, Moscow (1973).
E. T. Turkdogan, The Physical Chemistry of High-Temperature Processes [Russian translation], Metallurgiya, Moscow (1985).
L. P. Ruzinov and B. S. Gulyanitskii, Equilibrium Transformations of Metallurgical Reactions [in Russian], Metallurgiya, Moscow (1975).
A. N. Krestovnikov, L. P. Vladimirov, B. S. Gulyanitskii, and A. Ya. Fisher, Handbook of Calculations of Equilibriums of Metallurgical Reactions [in Russian], Metallurgizdat, Moscow (1964).
Kh. A. Braunli, Statistical Theory in Science and Technology [in Russian], Nauka, Moscow (1977).
Author information
Authors and Affiliations
Additional information
Translated from Ogneupory, No. 3, pp. 33–36, March, 1993.
Rights and permissions
About this article
Cite this article
Nagornyi, A.P., Sakhno, V.A., Nagornyi, S.A. et al. Wear of the periclase-lime lining of steel teeming ladles in ladle desulfurization of steel. Refractories 34, 177–181 (1993). https://doi.org/10.1007/BF01283136
Issue Date:
DOI: https://doi.org/10.1007/BF01283136