School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, China.
CISDI Research & Development Co. Ltd., Chongqing, China.
PLoS One. 2021 Mar 5;16(3):e0247828. doi: 10.1371/journal.pone.0247828. eCollection 2021.
A viscosity estimation model for fluorine-containing mold flux for continuous casting was investigated based on the Arrhenius formula and the rotating cylinder method combined with nonlinear regression analysis. This model is highly applicable and not limited by the slag of a certain composition. For most slag compositions, the viscosities estimated with this model deviated from the measured values by no more than 10%, which was in better agreement with the measured values than the viscosities estimated by the Riboud, Iida and Mills models. According to the model calculation and experimental detection, a viscosity isogram of CaF2-Na2O-Al2O3-CaO-SiO2-MgO slag was produced, and the mass fraction of CaF2 in the low-viscosity zone was nearly 14%. An X-ray fluorescence spectrometric analysis of slag after the viscosity test showed that CaF2 and Na2O were significantly reduced, and the measured viscosity was greater than the theoretical viscosity due to the volatilization.
基于阿伦尼乌斯公式和旋转圆筒法，并结合非线性回归分析，研究了用于连铸的含氟保护渣的黏度估算模型。该模型具有较高的适用性，不受特定渣组成的限制。对于大多数渣组成，该模型估算的黏度与实测值的偏差不超过 10%，与实测值的吻合度优于 Riboud、Iida 和 Mills 模型估算的黏度。根据模型计算和实验检测，生成了 CaF2-Na2O-Al2O3-CaO-SiO2-MgO 渣的黏度等值线图，低黏度区的 CaF2 质量分数接近 14%。黏度测试后的渣的 X 射线荧光光谱分析表明，CaF2 和 Na2O 显著减少，由于挥发，实测黏度大于理论黏度。
