Estimation Prediction of CaO–SiO2–FexO Slag System Based on Microstructure Analysis

Understanding the transformation mechanism of the viscosityViscosity of the CaO–SiO2–FexO slag is of great significance for improving the quality of liquid steel and ensuring the smooth smelting process. In this study, the viscosityViscosity values of the CaO–SiO2–FexO system at different temperatures were measured, and its meltMelt structureStructure was analyzed by Raman spectroscopy. The microstructure analysis of the viscosityViscosity was then given from the perspective of meltMelt structureStructure. On this basis, a viscosityViscosity prediction modelModel that depends on the concentration of oxygen bonds was established using the molar fractions of oxygen bonds calculated by structural analysis. By comparing the measured and calculated values of viscosityViscosity, it was found that the deviation of all data was within 0.1 Pa s, showing the higher accuracy and stability of the current modelModel.