Cover Image

Interaction of ZG-refractory with mold flux and ambient air

A. V. Jagovcev, N. V. Obabkov

Abstract


Zirconia graphite refractory is used in continuous casting of steel. Slag corrosion resistance influence on time of casting. With factorial experiment 25-1 influence mixture of refractory (content of graphite, silicon carbide, boron carbide) on oxidation resistance and interaction with mould powder (C/S = 1, F = 8 %) at 1400 °C. Boron carbide is better antioxidant than silicon carbide. Boron carbide 3 % mass decrease slag corrosion resistance of ZG-refractory. The thicknesses de-carbonized layer are within 1–7 mm Additives of boron carbide and silicon carbide reduce the thickness of the oxidized layer. It was established experimentally that the boron carbide has the best antioxidant properties than silicon carbide therefore, in the study circolatorio materials action SiC less effective than B4C.

Keywords


zirconia graphite refractory material; refractory; slag; silicon carbide; boron carbide; antioxidant properties

References


Koga S, Amano J, Morikawa K, Asano K. J Tech Assoc Refract, Jpn. 2006;26(3):184-8.

Suvorov SA, Vikhrov EA. Melting of slag-forming mixes for cbcm molds. Refract Ind Ceram. 2010;51(3):187-92. doi:10.1007/s11148-010-9286-5

Adler P, Markova EV, Granovsky JV. Planirovaniye eksperimenta pri poiske optimal'nykh usloviy [Planning of experiments in search of optimal conditions]. Moscow: Nauka; 1976. 279 p. Russian.

Suvorov SA, Musevich VA. Natural graphite ahes and their effect on the properties of carbonized periclase refractories. Refract Ind Ceram. 2007;48(2):118-22. doi:10.1007/s11148-007-0041-5




DOI: https://doi.org/10.15826/chimtech.2014.1.3.722

Copyright (c) 2014 A. V. Jagovcev, N. V. Obabkov

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Scopus logo WorldCat logo DOAJ logo CAS logo BASE logo eLibrary logo

© Chimica Techno Acta, 2014–2024
ISSN 2411-1414 (Online)
This journal is licensed under a Creative Commons Attribution 4.0 International