公开(公告)号：US09764368B2

公开(公告)日：2017-09-19

申请号：US14346393

申请日：2012-09-24

Applicant: SMS group GmbH

Inventor： Mark Haverkamp ,  Norbert Theelen

IPC: B21B38/10

CPC classification number: B21B38/10 ,  B21B38/105

Abstract: Disclosed is a rolling mill, in particular a rolling mill having more than one mill stand, comprising at least two rolls (30) which are mounted in a roll bearing in a mill stand to absorb rolling forces, further comprising means (40) for moving at least one roll relative to the mill stand as well as means (50) for determining the roll pass, the determining means having a pass reference (54) and a spatial reference (56) as well as means (58) for measuring the relative position between the pass reference and the spatial reference. In order to create a rolling mill that provides as accurate information as possible about the roll pass, the pass reference and/or the spatial reference is/are arranged peripherally in relation to the power flow occurring between the roll and the mill stand.

公开(公告)号：US09789522B2

公开(公告)日：2017-10-17

申请号：US14177430

申请日：2014-02-11

Applicant: SMS group GmbH

Inventor： Walter Hoeffgen ,  Walter Kirchner ,  Norbert Theelen

IPC: B21B17/02 ,  B21B25/00 ,  B21B17/04 ,  B21B25/04

CPC classification number: B21B17/02 ,  B21B17/04 ,  B21B25/00 ,  B21B25/04

Abstract: In order to improve the quality of pipe-like work pieces, a rolling mill has at least two successive consecutive rolling stages that have mandrel rods. A threading line for the mandrel rod of the second rolling stage can lie on an extraction line for the mandrel rod of the first rolling stage. The same advantage can be achieved in a rolling method for the production of pipe-like work pieces, comprising at least two successive consecutive rolling stages, wherein the two rolling stages perform the rolling with the use of mandrel rods. The work piece is brought from the mandrel rod of the first rolling stage onto the mandrel rod of the second rolling stage, without entirely emptying an interior of the work piece and/or without changing the direction of movement of the work piece or braking the work piece in the meantime and accelerating it once again.

公开(公告)号：US10654084B2

公开(公告)日：2020-05-19

申请号：US15653612

申请日：2017-07-19

Applicant: SMS group GmbH

Inventor： Mark Haverkamp ,  Norbert Theelen

IPC: B21B38/00 ,  B21B38/10

Abstract: A rolling mill, in particular a rolling mill having more than one mill stand, includes at least two rolls which are mounted in a roll bearing in a mill stand to absorb rolling forces, movers for moving at least one roll relative to the mill stand as well as determining devices for determining the roll pass, the determining device having a pass reference and a spatial reference as well as a measuring device for measuring the relative position between the pass reference and the spatial reference. At least one of the pass reference and the spatial reference is arranged peripherally in relation to the power flow occurring between the roll and the mill stand.