Importance

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Abstract

A straightening machine (1) and a method for straightening a metal strip or a flat metal part (16) by the straightening machine, having upper straightening rollers (3) in an upper roller mill (2) and lower straightening rollers (6) in a lower roller mill (5). The upper and lower straightening rollers form upper and lower roller mill planes with a straightening gap therebetween and act on the metal strip to be straightened. In a working position, the upper roller mill plane forms an operating angle to the lower roller mill plane. The straightening gap (11) is changed by adjusting the upper roller mill plane relative to the lower roller mill plane. Before or at the start of a straightening process, the upper and/or lower roller mill is put in a starting position with a widened straightening nip, at least until a front end of the material strip has entered the inlet of the working region and for the rest of the straightening process, the upper and/or lower roller mill is put in the working position.

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First Claim