Development of a Dross Build-Up Growth Process Model for Hot-Dip Galvanizing Considering Surface Reaction Kinetics
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in: Metallurgical and materials transactions. B, Process metallurgy and materials processing science, Jahrgang 55.2024, Nr. February, 02.2024, S. 53-63.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Development of a Dross Build-Up Growth Process Model for Hot-Dip Galvanizing Considering Surface Reaction Kinetics
AU - Reiss, Georg
AU - Eßl, Werner
AU - Trasca, Raluca Andreea
AU - Mugrauer, Claudia
AU - Stefan-Kharicha, Mihaela
AU - Kharicha, Abdellah
AU - Gerold, Eva
AU - Goodwin, Frank
N1 - Publisher Copyright: © 2023, The Minerals, Metals & Materials Society and ASM International.
PY - 2024/2
Y1 - 2024/2
N2 - The minimization of unwanted dross build-up formation on the sink rolls in continuous hot-dipgalvanizing lines is a key goal of the industry. In this study, the CFD multi-physics modeling ofthe surface reaction kinetics for dross build-up growth and the coupling to the mass transfer isthe basis for the evaluation of relevant process parameters. The results of a virtual Design ofExperiments were processed by neural network approaches, as well as linear regressionmodeling to build a surrogate process model. It was found that the bath Al concentration hasthe highest effect (> 80 pct) on the dross build-up rate on the sink rolls. Operating the zinc bathat higher Al concentrations decreases the dross build-up reaction rate. Furthermore, it wasfound by the CFD multi-physics model that the local dross build-up rate increases toward theedges of the roll grooves which might lead to the occurrence of strip surface defects.
AB - The minimization of unwanted dross build-up formation on the sink rolls in continuous hot-dipgalvanizing lines is a key goal of the industry. In this study, the CFD multi-physics modeling ofthe surface reaction kinetics for dross build-up growth and the coupling to the mass transfer isthe basis for the evaluation of relevant process parameters. The results of a virtual Design ofExperiments were processed by neural network approaches, as well as linear regressionmodeling to build a surrogate process model. It was found that the bath Al concentration hasthe highest effect (> 80 pct) on the dross build-up rate on the sink rolls. Operating the zinc bathat higher Al concentrations decreases the dross build-up reaction rate. Furthermore, it wasfound by the CFD multi-physics model that the local dross build-up rate increases toward theedges of the roll grooves which might lead to the occurrence of strip surface defects.
KW - Dross Build-Up
KW - Grwoth Process Model
KW - Hot-Dip Galvanizing
UR - http://www.scopus.com/inward/record.url?scp=85174743478&partnerID=8YFLogxK
U2 - 10.1007/s11663-023-02921-2
DO - 10.1007/s11663-023-02921-2
M3 - Article
VL - 55.2024
SP - 53
EP - 63
JO - Metallurgical and materials transactions. B, Process metallurgy and materials processing science
JF - Metallurgical and materials transactions. B, Process metallurgy and materials processing science
SN - 1073-5615
IS - February
ER -