Apparatus and method for influencing the frictional conditions between and upper roll and a lower roll of a roll stand
AssigneeSMS Schloemann-Siemag Aktiengesellschaft
InventorsJurgen Seidel, Hans-Heinrich Hartmann
Life of this patent
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Abstract
An apparatus and a method for influencing the frictional conditions between an upper roll and a lower roll of a roll stand of a hot-rolling train for wide strip or a cold-rolling train for strip. The apparatus includes a spraying device arranged at the entry side of the roll stand for spraying a defined quantity of liquid in the direction of the roll gap and a control device for determining the quantity and discharge of this liquid, wherein used as a control variable is a predetermined or also computed variable in connection with the actual roll torque of the lower roll or/and the upper roll.
Claims10
An apparatus for influencing frictional conditions between strip and an upper roll and a lower roll of a roll stand of a hot rolling train for wide strip or a cold rolling train for strip, the apparatus comprising a spraying device arranged at an entry side of the roll stand for spraying a quantity of liquid each onto an upper side of the strip and onto a lower side of the strip and a control device for determining the quantity sprayed onto the upper side and the quantity of liquid sprayed onto the lower side in dependence on actual roll torques of at least one of the lower roll and the upper roll.
A method of rolling strip-shaped rolling stock by influencing frictional conditions between the rolling stock and an upper roll and a lower roll of a roll stand, the method comprising an upper side of the strip and a lower side of the strip each at an entry side of the roll stand by a spraying device with a quantity of liquid, and controlling the quantity of the liquid sprayed onto the upper side and the quantity of liquid sprayed onto the lower side in dependence on actual roll torques of the lower and upper rolls.
Dependencies are inferred from the claim text.