Mathematical modelling of nickel behaviour in the liquid steel flowed through the one strand tundish

• Autorzy: Cwudziński A. , Jowsa J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The continuous steel casting (CSC) technology is a dynamically developing method for obtaining steel semi-finished product in the form of a continuous casting slabs, blooms and billets. During the course of the CSC process, the liquid form of steel offers a possibility of introducing alloy additions to adjust the chemical composition or modify the non-metallic inclusions. The aim of the tests was to verify the degree of chemical homogenization of the steel after the addition of nickel. Design/methodology/approach:The device under examination is a wedge-shaped single-nozzle tundish of a capacity of 30 Mg. Computer simulation of the liquid steel flow and alloy addition behaviour in turbulent motion conditions was done using the Ansys-Fluent® computer program. Due to the complexity of alloy addition dissolution and dispersion in metallurgical processes, a decision was made to use the Species Model available within the Ansys-Fluent® program. Findings: The computer simulation produced a picture of the flow of liquid steel and the spread of nickel within the liquid steel volume. To illustrate the chemical homogenization process spatially and in a greater detail, the Ni diffusion process was monitored at selected measurement points situated in the tundish working space region. Research limitations/implications: Numerical model not include melting process of alloy addition. Practical implications: The results from numerical simulation could be use to elaborate a method of controlled alloy addition feeding to the liquid steel during continuous steel casting process. Originality/value:The paper present results of alloy addition mixing process in the liquid steel flowed through the continuous casting slab tundish.

Słowa kluczowe

EN

tundish; alloy addition; numerical symulation

PL

kadź; dodatek stopowy; symulacja numeryczna

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 57, nr 2
• Strony: 63--68

Twórcy

autor

Cwudziński A.

• Department of Metals Extraction and Recirculation, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Jowsa J.

Bibliografia

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