Russula: Industrial Engineering Services
Cold Rolling
 

Cold Rolling

Cold rolling is the process of reducing the thickness and flatness of steel, aluminum or other metals at lower temperatures then hot rolling. Russula has implemented automation projects in high speed cold rolling among the following types of mills:

  • Tandem cold mills
  • Coupled pickling and tandem cold mills
  • Reversing cold mills
  • Skin-pass mills
  • Cluster type mills for stainless steel

Cold Rolling Control
The thickness and flatness of the strip are critical parameters to control; algorithms are used to continuously calculate and adjust the gap and thickness control. In summary the control consists of the following four functions:

  • Flatness control including rollers’ cooling, flexion, and inclination.
  • Hydraulic gap control (HGC) or Automatic Gap Control (AGC), which sets the position of the rollers
  • Stretch control
  • Thickness control including “feed-forward” and mass flow control

The main benefits achieved by correctly automating cold rolling mills are:

  • Produce strip at tight tolerances
  • High productivity for carbon, stainless and special steel grades