Composition of Ladle Slag and Refractory Materials and Its Effect on the Wear Resistance of the Lining of an RH Vacuum Degasser |
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| Authors: | V. A. Rovnushkin E. A. Visloguzova S. A. Spirin E. V. Shekhovtsov V. V. Kromm A. A. Metelkin |
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| Affiliation: | (1) Ural Institute of Metals State Science Center, Ekaterinburg, Russia;(2) Nizhny Tagil Iron and Steel Works JSC, Nizhny Tagil, Russia |
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| Abstract: | The resistance of magnesian spinellide refractories to molten slag attack is studied and effects associated with the material composition and the microstructure of test specimens are discussed. The mechanisms of corrosion wear and chemical reactions involved are considered in detail. Slags with a basicity of 1.9 – 2.1 react with periclase to yield spinel, calcium orthosilicate, and monticellite. To prevent the chemical corrosion of periclase, sintered periclase or alumina as additions to the slag are recommended for use. __________ Translated from Novye Ogneupory, No. 3, pp. 33 – 36, March, 2005. |
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