The intermediate rolling mill consists of eight stands,which are horizontal and vertical arrangement alternately. The first four stands are Φ450 short-stress rolling mills, and the last four stands are Φ350 short-stress rolling mills. The coming bar rolled with no torsion and micro-tension in the roughing rolling mills.
The Technical Specification are as follow
Φ450 rolling mill (7H, 8V, 9H, 10V)
- Model type: short stress
- Roll specification: Φ495/Φ420mm
- Roll barrel length: 700mm
- Roll center distance: 495～420mm
- Horizontal movement of stand: ±270mm (horizontal stand)
- Stroke height: 875mm (vertical frame)
- Axial adjustment of roll: ±5mm
- Maximum rolling force: 1239KN
- Maximum rolling torque:73.6KN.m
Φ450 rolling mill (11H, 12V, 13H, 14V)
- Model type: short stress
- Roll specification: Φ380/Φ330mm
- Roll barrel length: 650mm
- Roll center distance: 390～320mm
- Horizontal movement of stand: ±260mm (horizontal stand)
- Stroke height: 620mm (vertical frame)
- Axial adjustment of roll: ±3mm