Recent Trends in Hot-Dip Galvanizing of Advanced High-Strength Steel at ThyssenKrupp Steel Europe

摘要

The modern automobile requires the use of advanced high-strength steels (AHSS). During annealing in the continuous annealing furnaces of hot-dip galvanizing lines, the alloying elements of AHSS form selective oxides. This can lead to undesirable quality defects during the coating process. This paper shows that, among others, dewpoint control and the oxidation/reduction technique are key technologies for the hot-dip process of AHSS.