Results are presented from studies of the reasons for the formation and growth of slag crusts in the crucibles of induction furnaces during the smelting of cast iron. It is established that crust formation and adhesion of slag to the furnace lining are caused by interaction of the lining material with reactants in the melt. The degree of slag incrustation and adhesion depends on the technology used to smelt the cast iron. The formation of slag in the furnace is affected by the existence of large temperature gradients, motion of the melt due to its electromagnetic mixing, the scheduled and unscheduled introduction of additions into the furnace, the entry of harmful components into the furnace together with the charge materials, interactions between the melt, the slag, the furnace atmosphere, and the lining of the crucible, the temperature in the furnace, and the area and rate of reaction of the reactants.
Similar content being viewed by others
References
V. S. Shumikhin, P. P. Luzan, and M. V. Zhel’nis, Synthetic Cast Iron [in Russian], Naukova Dumka, Kiev (1971).
A. S. Zavertkin, Investigation of Factors That Affect the Durability of Rammed Acid Linings of Induction Furnaces during the Smelting of Cast Iron: Engineering Sciences Candidate Dissertation. Aleksandr Sergeevich Zavertkin (1972).
M. N. Kaibicheva, “The lining of induction furnaces in Germany and other capitalist nations,” Ogneupory, 52(3) (1970).
A. S. Zavertkin, “Studies on selecting the binder and granulometric composition of quartzite-based bulk refractories for induction furnaces,” Mineralogical Prospects: Proc. Internat. Mineralogical Seminar, May 17 – 20 (2011). Syktyvkar, Geoprint (2011), pp. 315–316.
N. G. Girshovich (editor), Smelting Synthetic Cast Iron in Induction Furnaces and Its Technology at the Kaunas Foundry “Tsentrolit” [in Russian], Vilnius, Minis (1974).
Author information
Authors and Affiliations
Additional information
Translated from Novye Ogneupory, No. 1, pp. 36 – 39, January, 2013.
Rights and permissions
About this article
Cite this article
Zavertkin, A.S. Effect of the lining and smelting technologies on slag formation in the induction-furnace smelting of cast iron. Refract Ind Ceram 54, 35–38 (2013). https://doi.org/10.1007/s11148-013-9544-4
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11148-013-9544-4