Mathematical Modelling of the Vacuum Degassing Process for Hydrogen Removal in Precision Steel Production

• DOI: 10.56578/pmdf010403
• Publication Date: 2024-12-25T09:40:56Z
• Authors: Nenad Milijić; Natalya Safronova; Ivan Mihajlović; Aca Jovanović

Precision steel is a critical material in modern engineering, particularly precision mechanics and high-performance construction. In this study, mathematical model presented to simulate the vacuum degassing (VD) process employed reduce hydrogen content produced via basic oxygen furnace (BOF) process. The steel, which subsequently used for ingot casting, requires significant reduction levels— from 7 ppm below 1.5 ppm—to meet stringent quality requirements high-precision applications. This achieved through VD combination with argon bottom stirring. model, developed collaboration an industrial project Bosnia Herzegovina, designed predict necessary time temperature variation during accounts operational parameters specified by sponsor constraints of Results indicate that can be reduced within 8.39 minutes under optimal conditions. Furthermore, molten starting 1670℃, final after predicted 1637℃. applicability has been validated practical implementation new facility, constructed based on model's predictions. study demonstrates broader utility designing optimizing processes production, offering potential enhancing efficiency similar settings.