Novel Environmental Refractory Lining for Hot Metal Ladle: Carbon-Free Al2O3-SiC Brick

For decades, hot metal ladles have been lined with Al2O3-SiC-C (ASC) bricks due to the highly acidic slag resistance inherent to the ironmaking process. Although these bricks present standard performance for this application, new demands focused on equipment lifetime increase, and easy recycling (no AOX) and zero-fume emissions emerge as key points for technological advances in the steelmaking industry. A novel tempered C-free Al2O3-SiC (ASiC) brick with engineered microstructure and special binder was developed to reach these environmental requirements. This work presents the physical, mechanical and thermomechanical properties comparison of ASiC versus ASC technology and field trial performance.

José Alvaro Sardelli | RHI Magnesita
 

Carlos Pagliosa | RHI Magnesita
 

Mr Tiago Moreira | RHI Magnesita
 

Julia Macedo | RHI Magnesita
 

Mr Vanderlucio Madalena | RHI Magnesita