公开(公告)号：US20220339683A1

公开(公告)日：2022-10-27

申请号：US17640039

申请日：2020-09-07

Applicant: SMS group GmbH

Inventor： Martin SAUERLAND ,  Susanne ZELLER ,  Matthias KRAHN

IPC: B21B1/20 ,  B21B13/00 ,  B21B19/02 ,  B21B37/78

Abstract: A cross-rolling unit and a method for setting the roll pass of a cross-rolling unit, having at least two rolls and a roll housing, in which at least one of the rolls is mounted such that its position can be adjusted in order to change the roll pass, allow the roll pass to be adjusted by means of a roll-positioning apparatus even during rolling, which roll-positioning apparatus is characterized by a housing-connected part and a roller-mill-connected part, which can be moved relative to the housing-connected part during rolling, which parts can be repositioned relative to each other, and/or which roll-positioning apparatus characterized by a drive which is dimensioned in such a way that rolling forces can be applied.

公开(公告)号：US20240017314A1

公开(公告)日：2024-01-18

申请号：US18039371

申请日：2021-11-08

Applicant: SMS group GmbH

Inventor： Mario THOME ,  Susanne ZELLER

IPC: B21D5/12 ,  B21D5/00 ,  B21C37/08

CPC classification number: B21D5/12 ,  B21D5/004 ,  B21C37/0818

Abstract: The disclosure relates to a method for pre-shaping sheet metal (1) in strip- or panel-form having a flat cross-sectional profile into a circular arc-shaped cross-sectional profile, in a pre-shaping section (3) of a plant for producing open-seam pipes. The circular arc-shaped cross-sectional profile is provided to the sheet metal (1) in the pre-shaping section (3) by means of roll profiling in a plurality of successive bending steps in a transport direction. The cross-sectional profile is created by step-by-step bending of individual circular arc portions (8) from an outer edge of the sheet metal (1) toward a center line (7) such that the individual circular arc portions (8) directly adjoin one another or at least partially overlap. The disclosure further relates to a device for carrying out the method.

公开(公告)号：US20210078058A1

公开(公告)日：2021-03-18

申请号：US17054641

申请日：2019-05-08

Applicant: SMS GROUP GMBH

Inventor： Norbert THEELEN ,  Susanne ZELLER ,  Helge DAEHNDEL ,  Alexander GOHR ,  Peter THIEVEN

IPC: B21B17/14

Abstract: A stretch-reducing mill (1) for producing seamless pipes (R), which comprises a plurality of roll stands (10), which are arranged one after the other in a conveying direction (F) of the pipes (R) and each have three rolls (11) arranged at an angular distance of 120°, wherein the roll stands (10) are divided into at least two groups (A, B) each having at least two roll stands (10); the rolls (11) of adjacent roll stands (10) within a group (A, B) are inclined relative to each other by an intra-group angle αI; and the rolls (11) of the roll stands (10) of adjacent groups (A, B) are inclined relative to each other by a group angle αG that is less than the intra-group angle αI.