Effect of Silicon Content on Red Scale of Hot Rolling Coil
The experiment of red scale on HRC(hot rolling coil) was carried out on a tandem mill.The area percentage and structure of the red scale were analyzed by the on-line surface quality execution system and SEM.The mechanism of Si affecting the red scale and the methods of improving the break-scale effect were also discussed.The results show that the area percentage of the red scale was mainly affected by Si(silicon) content.The area percentage of the red scale decreases with the decrease of Si content.The SEM results show that the silicon concentration exists obviously between red scale and matrix.