THE RESEARCH OF FORMING OF OSCILLATION TRACKS ON THE SURFACE OF CONTINUOUS CAST BILLET
https://doi.org/10.17073/0368-0797-2016-4-226-231
Abstract
The article describes the fulfilled modeling of the formation process
of oscillation tracks on the surface of continuous casting billets on a cool model when splitting the liquid phases through the hard crust. It has been shown that the forming hard crust near the walls of a crystallizer consists predominately of fine equiaxial crystals; that can be explained by the increased intensity of heat removal in this area. The growth processes of hard crust in the area of meniscus have been analyzed in the period of prime crystallization of billets. It has been shown that among the processes, connected with the formation of oscillation tracks on the surface of continuous casting billets, special attention deserves the phenomenon, occurring in the area of meniscus. The partial hardening of meniscus, which has a convex surface, provides the formation of hard crusts in the form of crista, which is introduced into a molten-pool at splitting, caused by the increase of the level in the crystallizer in the result of its movement upwards.
Keywords
About the Authors
A. N. Smirnov
Physical and Technological Institute of Metals and Alloys of the National Academy of Sciences of Ukraine, Kiev, Ukraine
Russian Federation
Dr. Sci. (Eng.), Professor, Leading Researcher
Russian Federation
Dr. Sci. (Eng.), Professor, Leading Researcher
S. V. Kuberskii
Donbass State Technical University, Alchevsk, Ukraine
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Professor of the Chair “Ferrous Metallurgy”
A. V. Golovchanskii
Donbass State Technical University, Alchevsk, Ukraine
Russian Federation
Postgraduate of the Chair “Ferrous Metallurgy”
Russian Federation
Postgraduate of the Chair “Ferrous Metallurgy”
E. N. Maksaev
PJSC “Alchevsk Metallurgical Plant”, Alchevsk, Ukraine
Russian Federation
Russian Federation
V. E. Ukhin
Donetsk National Technical University, Donetsk, Ukraine
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Steel Metallurgy”
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Review
For citations:
Smirnov A.N., Kuberskii S.V., Golovchanskii A.V., Maksaev E.N., Ukhin V.E. THE RESEARCH OF FORMING OF OSCILLATION TRACKS ON THE SURFACE OF CONTINUOUS CAST BILLET. Izvestiya. Ferrous Metallurgy. 2016;59(4):226-231. (In Russ.) https://doi.org/10.17073/0368-0797-2016-4-226-231
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