Stretch levelling line

Stretch levelling line

Tension or stretch levelling consists of subjecting the strip of sheet metal to a traction force sufficient to exceed the yield stress of the material, combining this lengthening with simultaneous deformation of the strip caused by intermeshing of the levelling rolls.

Simultaneous stretching and bending during the straightening process serves to regulate material parameters like yield strength and elongation and reduce inner tensions. As a result, deformities are minimised and the strips drawing properties and geometrical precision is optimized.

The thickness monitoring and control at the entrance of the coil beginning is perfomed by the double sided non contacting Control System I20.

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