Simulation of Microstructure and Behavior of Interfacial Mold Slag Layers in Continuous Casting of Steel

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概要

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• A computational model of heat transfer, solidification and interface behavior during the continuous casting of steel is applied to interpret the crystallization behavior of slag layers in the interfacial gap between the mold and the steel shell. A mechanism for the formation of this crystalline layer is proposed that combines the effects of a shift in the viscosity curve, a decrease in the liquid slag conductivity due to partial crystallization, and an increase in the solid slag layer roughness corresponding to a decrease in solid layer surface temperature with distance down the mold. When the shear stress exceeds the slag shear strength before the axial stress accumulates to the fracture strength, the slag could shear longitudinally inside the layers. The predictions are consistent with measurements conducted in the real process and with the microstructure of analyzed slag samples.

• 社団法人 日本鉄鋼協会の論文
• 2006-05-15

著者

• THOMAS Brian

  University of Illinois

• Thomas Brian

  Univ. Of Illinois At Urbana-champaign Dep. Of Mechanical Sci. And Engineering

• MENG Ya

  University of Illinois at Urbana-Champaign, Department of Mechanical and Industrial Engineering

• Meng Ya

  University Of Illinois At Urbana-champaign Department Of Mechanical And Industrial Engineering

関連論文

• タンディッシュ内溶鋼中の介在物分離モデル
• Simulation of Microstructure and Behavior of Interfacial Mold Slag Layers in Continuous Casting of Steel
• Heat Transfer in Funnel-mould Casting : Effect of Plate Thickness

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