Our roughing mill stands are designed to produce straight and camber free transfer bars. That reduces rolling difficulties and cobble risks during finish rolling.
What happens when transfer bars camber due to temperature or geometrical wedges? You face rolling problems in the finishing mill and an increased likelihood e.g. of tail end breaks.
This is where camber-free rolling comes in. It's based on the interaction of roll alignment control integrated in our automation system and strong, position-controlled side guides in the roughing mill stand entry and exit sections.
Here's how it works:
- The slab contact with the strong, position-controlled side guides applies tension to the roll gap.
- The roll alignment control keeps the rolls parallel and, together with the slab tension, ensures a transverse material flow in the roll gap.
The result: wedge and camber-free transfer bars.