Solutions for the Global Metals Industry

Steckel MillThe Steckel mill is a unique type of reversing rolling mill,which can roll very large slabs to produce high qualityplate and strip. Furnaces on both sides of the mill provideheated space to store the increased length of coiledmaterial produced during strip rolling. These coilingfurnaces allow for additional heat retention and thermalconsistency in the rolled piece, which in turn producesimproved uniformity throughout the rolled product.Steckel Mill with Coiling Furnaceslocated on either sideOn right - Operator’s Screen showing:- Alarms & Manual Control buttons- Steckel Mill graphic- Real-time data- Screen navigation buttons at the bottomWorld Class Features of TMEIC’s Steckel Mill Control SystemTriple Adaptive ModelThe model contains three separate control setups forthe head, body, and tail of the slab.Wide Product RangeControls can handle rolling both plate and coil withthicknesses from 1 mm to 70 mm, with complexsequences and auto recovery from manual intervention.Pass to Pass AdaptationAll critical material parameters are measured and thecontrol setup calculated for the next pass.Tapered Thickness RollingThe thickness is fully programmable so that the headand tail can be reduced to a different amount than thebody. Uniform thickness is produced in the final pass.Absolute Hydraulic Automatic Gage ControlThe AGC works to achieve constant target thicknessand/or follow a predetermined thickness trajectory.Temperature Controlled RollingThe metal temperature is controlled so the desiredmechanical properties can be achieved.Coiling Furnace Temperature ModelThe temperature model calculates the heat transfer tothe coil in the furnace.Finishing Temperature ControlThe model calculates the desired speed of each passbased on the target temperature in the coil body.Coiling Temperature ControlThe run out table sprays are controlled to produce thetemperature-time profile for the desired metallurgicalproperties.© 2011 TMEIC Corporation. All Rights Reserved.Page 13 of 40