Online Modelling of Heat Transfer, Solidification and Microstructure in Continuous Casting of Steel

Joint 5th International Conference on Advances in Solidification Processes;5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining

土木建筑工程;计算机科学

Louhenkilpi, S.^1^2 ; Miettinen, J.^1 ; Laine, J.^5 ; Vesanen, R.^3 ; Rentola, I.^4 ; Moilanen, J.^5 ; Visuri, V.-V.^1 ; Heikkinen, E.-P.^1 ; Jokilaakso, A.^2

Process Metallurgy Research Unit, University of Oulu, P.O. Box 4300, Oulu

90014, Finland^1

Department of Chemical and Metallurgical Engineering, Aalto University, P.O. Box 16200, Aalto

00076, Finland^2

Casim Consulting Oy, Sepetlahdentie 12 F 54, Espoo

02230, Finland^3

SSAB Europe Oy, Rautaruukintie 155, Raahe

92101, Finland^4

Outokumpu Stainless Oy, Tornio

95490, Finland^5

关键词: Automation systems;    Continuous casting of steels;    Microstructural phenomenon;    Microstructure model;    On-line applications;    On-line quality control;    Steady-state version;    Three dimensional heat transfer;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/529/1/012051/pdf
DOI  :  10.1088/1757-899X/529/1/012051

来源: IOP

【 摘 要 】

Advanced numerical simulation models for continuous casting of steel were developed in Finland by Casim Consulting and Aalto University in cooperation with the University of Oulu and the steel industry. The aim was to develop models that are scientifically rigorous, but also computationally fast enough to be used in online applications. The models developed are a transient three-dimensional heat transfer model, CastManager, and a solidification and microstructure model, IDS. The computing time of these models are short, and they are integrated together in one online concept. This concept is installed in the automation systems of four slab casters in Finland. Testing and validation work is in progress. The system simulates the important heat transfer, solidification and microstructural phenomena in continuous casting online. The future aim is that this information will be used for online quality control and for optimizing the process conditions to avoid formation of defects. Many quality indices have already been developed. A steady state version of the CastManager tool has also been developed, called Tempsimu.