公开(公告)号：US11511327B2

公开(公告)日：2022-11-29

申请号：US17050852

申请日：2019-04-24

Applicant: SMS group GmbH

Inventor： Frank d'Hone ,  Martin Sauerland ,  Matthias Krahn

IPC: B21B19/04 ,  B21B38/10 ,  B21B37/58 ,  B21B37/78 ,  B21B13/00 ,  B21B19/06

Abstract: A cross-rolling mill for rolling a block over a mandrel forms a hollow block. It includes a plurality of working rollers, each of which exerts a substantially radially aligned rolling force onto the block. The working rollers are supported in a roll stand, and the gap between the working rollers and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block can be modified. Hydraulic actuators, preferably hydraulic capsules, are provided in order to modify the rolling gap and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block.