Patent ID: 7445693

Claim:
A method of setting a pressure between a first roll and a second roll in a device for at least one of producing and treating a moving fiber material web, at least one of the first roll and the second roll being movable toward an other of the first roll and the second roll, at least one of the first roll and the second roll having a radially resilient roll cover, said method comprising the steps of: determining a distance-force characteristic in a calibration phase for the first roll and the second roll, said distance-force characteristic representing a relationship between a mutual axial spacing of the first roll and the second roll and a pressing force transmitted between the first roll and the second roll; setting an associated desired value of said mutual axial spacing dependent on said distance-force characteristic; and achieving a desired pressing force in a working operation of the device thereby positioning said first roll and said second roll at said desired value of said mutual axial spacing.