2016 | OriginalPaper | Buchkapitel
Mathematical Model of Solidification During Electroslag Casting of Pilger Roll
verfasst von : Fubin Liu, Huabing Li, Zhouhua Jiang, Yanwu Dong, Xu Chen, Xin Geng, Ximin Zang
Erschienen in: Proceedings of the 2013 International Symposium on Liquid Metal Processing & Casting
Verlag: Springer International Publishing
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A mathematical model for describing the interaction of multiple physical fields in slag bath and solidification process in ingot during pilger roll casting with variable cross-section which is produced by the electroslag casting (ESC) process was developed. The commercial software ANSYS was applied to calculate the electromagnetic field, magnetic driven fluid flow, buoyancy-driven flow and heat transfer. The transportation phenomenon in slag bath and solidification characteristic of ingots are analyzed for variable cross-section with variable input power under the conditions of 9Cr3NiMo steel and 70%CaF2 − 30%Al2O3 slag system. The calculated results show that characteristic of current density distribution, velocity patterns and temperature profiles in the slag bath and metal pool profiles in ingot have distinct difference at variable cross-sections due to difference of input power and cooling condition. The pool shape and the local solidification time (LST) during Pilger roll ESC process are analyzed.