Patent ID: 7316146
Filing Date: 2008-01-08
Classification: B21B

Abstract:
1. A rolling stand for producing rolling strip, comprising: a stand for supporting rolls; two work rolls supported in the stand and oriented to define a roll gap between which a strip is rolled; each roll of the two work rolls having a respective effective barrel length and having a respective curved barrel contour extending axially over the entire effective barrel length of the rolls, wherein the respective barrel contours complement one another when the rolls are in a specific relative axial position in an unloaded state; the rolls being supported in the stand for being axially displaceable with respect to one another; the respective barrel contour of each of the two rolls is formed according to a trigonometric function; the roll gap between the two rolls having a contour that is also formed by a trigonometric function which is dependent upon a profile of the barrel contour and upon the axial position of the rolls within an axial displacement region thereof wherein the trigonometric function of the barrel contour is a tilted sine function corresponding to the general equation where R is the radius of the roll x is the axial position with respect to the center of the roll (=distance from the center of the roll) R A is the contour coefficient φ is the contour angle c is the contour displacement L B is the tilting coefficient and the roll gap contour is formed by a cosine function derived from the sine function in a manner corresponding to the general equation where s is the displacement of the upper roll from the central position G