Method for the stepped rolling of a metal strip
AssigneeGiebel Kaltwalzwerk GmbH
InventorStephan Scharfenorth
Life of this patent
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Abstract
A method for the stepped rolling of a metal strip unwinds the metal strip by a feed reel device and winds-up the metal strip by a winding reel device. The metal strip is guided through a roller gap formed between two working rollers during the rolling process, and the roller gap is changed in a controlled manner during the rolling process, whereby a thickness of the metal strip is changed in steps in the longitudinal direction during the rolling process. Tension applied to the metal strip is controlled such that the rolling force applied to the metal strip by the working rollers is constant during the rolling process.
Claims7
A method for stepped rolling of a metal strip, the method comprising:
- unwinding the metal strip from a decoiler apparatus, guiding the metal strip through a roll gap formed between two working rolls, changing the roll gap in targeted manner such that a strip thickness of the metal strip is changed in stepped manner, in a longitudinal direction, and concurrently controlling a strip tension applied to the metal strip, in targeted manner, so that a rolling force applied to the metal strip by the two working rolls and an elastic deformation of the two working rolls are approximately constant, and winding up the metal strip by a coiler apparatus.
A method for stepped rolling of a metal strip, the method comprising:
- unwinding the metal strip from a decoiler apparatus, guiding the metal strip through a roll gap formed between two working rolls, changing the roll gap in targeted manner such that a strip thickness of the metal strip is changed in stepped manner, in a longitudinal direction, and concurrently controlling a strip tension applied to the metal strip, in targeted manner, so that a rolling force applied to the metal strip by the two working rolls is approximately constant, influencing a geometry of transitions between the strip thickness of the metal strip via targeted strip tension control and targeted control of the speed of rotation and setting speed of the working rolls, and winding up the metal strip by a coiler apparatus.
Dependencies are inferred from the claim text.