Abstract: The effect of Al₂O₃ cylinder spinning thread speed on Al₂Q inclusion dissolution velocity in refining slag - 4-10 MgO, 34-39 Al₂O₃), 33 ~ 42 CaO, 3 ~ 9 CaF₂, 8 SiQ₂ , 1.3 - 8.7 SrO and the dissolution velocity constant of Al₂O₃ in slag have been tested and studied by modified viscosity testing device. The results showed that to decrease the viscosity of refining slag and initial Al₂O₃ content in slag were favourable to increase the Al₂O₃ absorbability of refining slag.

Key words: Al₂O₃-CaO Base Refining Slag, Al₂O₃ , Inclusion, Absorption, Dynamics

摘要： 通过改进的粘度测试装置 ,测试和研究了成分 (% )为 :4～ 10MgO ,34～ 39Al₂O₃,33～ 42CaO ,3～9CaF₂,8SiO₂ ,13～ 87SrO精炼渣中Al₂O₃圆柱体旋转线速度对Al₂O₃夹杂熔解速度的影响和Al₂O₃在渣中的熔解速度常数。结果表明 ,降低精炼渣粘度和减少渣中初始Al₂O₃含量 ,有利于提高精炼渣吸收Al₂O₃的能力。

关键词:  , Al₂O₃-CaO基精炼渣, Al₂O₃夹杂, 吸收, 动力学