Open AccessEffect of SEN immersion depth on mold flow profile and slag entrapment during continuous casting of steel
Author(s) -
Mallikarjuna Rao P,
Vaibhav Vasantrao Chougale,
Satish Kumar D,
T. Rajendra,
G. Balachandran
Publication year - 2021
Publication title -
metallurgical and materials engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.161
H-Index - 2
eISSN - 2812-9105
pISSN - 2217-8961
DOI - 10.30544/653
Subject(s) - mold , materials science , continuous casting , immersion (mathematics) , water model , casting , metallurgy , composite material , geometry , chemistry , mathematics , computational chemistry , molecular dynamics
Mold flux entrapment during continuous casting of steel contributes to both surface and sub-surface defects in the final product. Continuous casting operating parameters such as casting speed, SEN immersion depth, SEN port geometry, argon flow, and mold EMS significantly affect the mold flow conditions and flow profile. During continuous casting operation, SEN immersion depth is continuously varied to avoid localized erosion of SEN, and it impacts the flow dynamics in the mold. In the present work, water modeling studies were carried out for a wide range of mold widths (1200-1800 mm) and casting speeds (0.8-1.4 m/min) on a 0.5 scaled down water model to optimize casting speed for different combinations of SEN immersion depth and mold width. Results from water modeling were further validated using nail board studies in the actual plant. A safe operating matrix was identified from these experiments to avoid mold slag entrapment during continuous casting.