Characterization of MgO-based tundish working lining materials, microstructure and properties

Musmeci, Maximiliano; Rendtorff, Nicolás M.; Musante, Leonardo; Martorello, Leandro; Galliano, Pablo; Aglietti, E.F.

doi:10.1016/j.ceramint.2014.05.138

Cited by 12 publications

(3 citation statements)

References 8 publications

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“…The flexural strength or modulus of rupture (MOR) was measured on 10 samples by a 3-point bending test with a 40 mm span and a crosshead speed of 0.1 mm/min using a universal testing machine (5985, Instron, USA) [21]. The dynamic Young's modulus (E) for each composite was determined at room temperature by the impulse excitation technique (Grindosonic MK5 Industrial, Lemmens, Belgium) following the ASTM C1198 standard [22,23]. The dynamic Young's modulus of the composite reported corresponded to the average of 5 measurements according to [24,25]:…”

Section: Methodsmentioning

confidence: 99%

Dolomite-zirconia reaction sintered bonded coarse magnesia ceramics: effect of the bonding proportion

et al. 2021

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Refractory ceramic materials were manufactured, mainly composed of magnesia grains (coarse and medium fraction) and CaZrO 3 /MgO as a binding phase produced from the reaction sintering between CaMg(CO 3 ) 2 (dolomite) and m-ZrO 2 (monoclinic zirconia), which constituted the finer fraction. Different relationships between the proportion and the size of the different aggregates were studied. The microstructure of the materials was characterized in terms of density, crystalline phases, grain phase distribution, and morphology. A combination of X-ray diffraction analysis and scanning electron microscopy with microanalysis was used. The mechanical behavior was determined in terms of the room temperature dynamic Young's modulus and the 3-point bending modulus of rupture (MOR) at room temperature. All the materials remained with porosities above 30%. The microstructure developed was similar between the sintered materials, characterized with MgO coarse grains bonded by CaZrO 3 /c-ZrO 2 phases, and dispersed irregularly shaped pores. The MOR was directly related to the finer fraction content in the composition, where a higher quantity of finer fraction resulted in a higher MOR.

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Section: Methodsmentioning

confidence: 99%

Dolomite-zirconia reaction sintered bonded coarse magnesia ceramics: effect of the bonding proportion

et al. 2021

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“…The highest consumption (42 %) of refractories in steelmaking corresponds to the tundish masses coating [5]. Tundish is an essential component for the process of continuous casting of steel, as it is the last container with refractory material to deliver molten metal at a controlled speed to the moulds [6]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Can Tundish Deskulling Waste Be Used as a Magnesium Oxide Source to Develop Magnesium Phosphate Cement?

Alfocea-Roig

Huete-Hernández

García-Zubiri³

et al. 2023

Preprint

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“…Thus, the working lining material should have good slag resistance, thermal shock resistance, volume stability, excellent thermal insulation performance, and high-temperature strength [ 5 , 6 , 7 ]. The dry vibrating material as the fourth generation of tundish working layer material, not only has the advantages of both insulation board and gunning material but also has the advantages of easy construction, high thermal efficiency, fast tundish turnover, long service life, and low energy consumption, which is widely used in the metallurgical industry of continuous casting tundish [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Preheating Temperature on Thermal–Mechanical Properties of Dry Vibrating MgO-Based Material Lining in the Tundish

Deng

Xie

2022

Materials

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For the collapse of the working layer of dry vibrating material during preheating, the four-strand tundish of a steel plant was taken as a prototype for numerical simulation. The software ANSYS was used to calculate the temperature field and stress and strain field on the working layer under three preheating stages through the indirect coupling method. The results show that during the preheating process, the temperature field distribution on the hot surface of the working layer gradually develops toward uniformity with the increase in preheating temperature. However, the temperature gradient between the cold and hot surfaces increases subsequently, and the highest temperature between the cold and hot surfaces reaches 145.31 °C in the big fire stage. The stress on the top of the working layer is much larger than in other areas, and the maximum tensile stress on the top reaches 39.06 MPa in the third stage of preheating. Therefore, the damage to the working layer starts from the top of the tundish. In addition, the strain of the area near the sidewall burner nozzle in the casting area is much larger than that in the middle burner area with the increase in preheating temperature. Thus, the working layer near the sidewall burner nozzle is more prone to damage and collapse compared with the middle burner nozzle.

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Characterization of MgO-based tundish working lining materials, microstructure and properties

Cited by 12 publications

References 8 publications

Dolomite-zirconia reaction sintered bonded coarse magnesia ceramics: effect of the bonding proportion

Dolomite-zirconia reaction sintered bonded coarse magnesia ceramics: effect of the bonding proportion

Can Tundish Deskulling Waste Be Used as a Magnesium Oxide Source to Develop Magnesium Phosphate Cement?

Effect of Preheating Temperature on Thermal–Mechanical Properties of Dry Vibrating MgO-Based Material Lining in the Tundish

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