US 2010/0031723 A1 · ROLLING METHOD FOR A STRIP

Abstract

A strip has a strip head and a strip leg. It is rolled, beginning at the strip head, in a roll stand of a rolling device between an upper and a lower roller arrangement of the roll stand. It is monitored whether the strip foot reaches a switching point located, viewed in the rolling direction, in front of the roll stand. From the time the strip leg reaches the switching point, the roller arrangements are subjected to a bending force expanding the roller arrangements by means of an adjusting device, the force being at least as high as a minimal force. The minimal force is at least as high as a balancing force of the upper roller arrangement. The minimal force is determined as a function of the parameters of the strip and/or the operating parameters of the rolling device.

Claims18

Dependent claims

A rolling method for a strip, which comprises a head of the strip and a tail of the strip, the method comprising the steps of:

rolling the strip, beginning with the head of the strip, in a rolling stands of a rolling device between an upper and a lower arrangement of rolls of the rolling stand,
monitoring whether the tail of the strip reaches a changeover point lying ahead of the rolling stand, as seen in the rolling direction,
as from the time at which the tail of the strip reaches the changeover point, subjecting the arrangements of rolls by means of a setting device to a bending force, which spreads the arrangements of rolls apart and is at least as great as a minimal force,
wherein the minimal force is at least as great as a balancing force of the upper pair of rolls,
and wherein the minimal force is determined in dependence on at least one of parameters of the strip and operating parameters of the rolling device.

2 more elements

Dependencies are inferred from the claim text.

Rolling method for a strip

Life of this patent

Rolling method for a strip

Life of this patent

Abstract

Claims18