Calibration method for a universal roll stand

Abstract

In a calibration method for a universal roll stand with horizontal rolls and vertical rolls, wherein the horizontal rolls are supported in upper and lower horizontal chocks and the vertical rolls are supported in vertical chocks and wherein the horizontal rolls are configured to be screwed down on one another and the vertical rolls are configured to be screwed down on the horizontal rolls, the vertical chocks are moved between the horizontal chocks such that vertical roll gaps remain between the horizontal rolls and the vertical rolls. Subsequently, spacers are arranged between the vertical chocks and at least one of the upper and the lower horizontal chocks. The horizontal chocks are advanced toward one another until the horizontal chocks contact the vertical chocks or the spacers, wherein the horizontal chocks during advancing are loaded maximally with an advancing force. The horizontal chocks are loaded after completion of advancing with a calibration force which is greater than the advancing force. After loading with the calibration force, the reached positional values of the horizontal chocks are measured and reference positions for subsequent rolling processes are determined based on the reached position values.

Dependencies are inferred from the claim text.