TITLE:
Effect of Steel Drying Time on the Thickness of the Zinc Coating during the Hot-Dip Galvanizing Process
AUTHORS:
Bi Irié Martial Kambo, Yapi Serge Brou, Nagnonta Hippolyte Coulibaly
KEYWORDS:
Galvanized Steel, Zinc, Galvanization, Drying Time
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.16 No.5,
May
21,
2026
ABSTRACT: The thickness of the zinc layer on galvanised steel is a significant issue in the field of hot galvanising. This study evaluates how the drying time during the hot galvanisation of 3 mm thick high-silicon steel plates influences the growth of the zinc coating. The results showed that drying times of less than approximately 15 minutes significantly reduce both the coating thickness and the average mass of deposited zinc, while longer durations reverse this trend. For temperatures of 450?C, 451?C, 453?C, and 454?C, we have a thickness reduction from 72 μm to 68 μm, from 74 μm to 62 μm, from 72 μm to 69 μm, and from 74 μm to 62 μm, respectively. This allows us to affirm that taking this parameter into account can help reduce zinc consumption and the production cost of galvanised steel.