公开(公告)号：US20250155070A1

公开(公告)日：2025-05-15

申请号：US18837332

申请日：2023-02-09

Applicant: SMS GROUP GMBH

Inventor： Jorg Doege ,  Frank Lichtenthaler ,  Lars Moller ,  Ulli Oberste- Lehn ,  Michael STARK ,  Jochen VOCHSEN

IPC: F16L58/08 ,  B23K26/342 ,  B32B1/08 ,  B32B15/01 ,  C23C4/06 ,  C23C4/131

Abstract: A pipe section includes a support layer consisting of a metal base material. The support layer has an inner surface, at least two pipe section ends each having an end region and an intermediate region. In each end region of the inner surface of the support layer, a first coating consists of a first metal coating material. The first coating is welded to the support layer. In the intermediate region of the inner surface of the support layer, a second coating consists of a second metal coating material. The second coating is sprayed onto the support layer using a thermal spraying process and having a second thickness. The support layer, on the inner surface, has a roughness Ra of more than or equal to 0.2 μm.

公开(公告)号：US20220243859A1

公开(公告)日：2022-08-04

申请号：US17607250

申请日：2020-04-29

Applicant: SMS GROUP GMBH

Inventor： Jochen VOCHSEN ,  Michael STARK

IPC: F16L58/18 ,  F16L13/02

Abstract: A metal pipe and a system of pipes, and a method of producing the same. The pipe is for conveying oil and gas. The pipe includes a metal coating in a transition region. The metal coating of the transition region obviates a subsequent coating of the inner surface of the transition region after connecting two pipes using a welding process in order to form a pipeline.

公开(公告)号：US20180169727A1

公开(公告)日：2018-06-21

申请号：US15579036

申请日：2016-06-02

Applicant: SMS group GmbH

Inventor： Mario THOME ,  Manfred KOLBE ,  Uwe FELDMANN ,  Jochen VOCHSEN

IPC: B21D5/01

CPC classification number: B21D5/015 ,  B21D5/02 ,  B21D5/10

Abstract: A method for producing open-seam pipes from sheet metal panels, in particular thick sheet metal panels. A sheet metal panel, having bending edges on the long sides thereof, is fed to a pipe forming press, in which the sheet metal panel is formed, lying on a lower tool having of two supporting elements which are horizontally spaced apart from each other, by an upper tool, which can be raised and lowered, by application of a bending force, progressively into an open-seam pipe having bending edges on opposite long sides with a gap for later longitudinal seam welding. In order that the sheet metal panel can be easily, progressively formed or shaped from the start, at least the bending sections immediately adjacent on the bending edges of the sheet metal panel are each formed from the outside to the inside, deviating from a numerically ascending bending step sequence in the pilgering process.

公开(公告)号：US20250146626A1

公开(公告)日：2025-05-08

申请号：US18837310

申请日：2023-02-09

Applicant: SMS GROUP GMBH

Inventor： Jorg Doege ,  Frank Lichtenthaler ,  Lars Moller ,  Ulli Oberste-Lehn ,  Michael STARK ,  Jochen VOCHSEN

IPC: F17D1/08 ,  B23K26/34 ,  B23K101/06 ,  C23C4/131 ,  F16L9/02 ,  F17D1/04

Abstract: A pipe section includes a support layer consisting of a metal base material. The support layer has an inner surface, at least two pipe section ends each having an end region, and an intermediate region. Each end region of the inner surface of the support layer has a first coating consisting of a first metal coating material. The first coating is welded to the support layer. The intermediate region of the inner surface of the support layer has a second coating consisting of a second metal coating material. The second coating is sprayed onto the support layer using a thermal spraying process and has a second thickness. The second thickness is less than or equal to 2500 μm.

公开(公告)号：US20230415213A1

公开(公告)日：2023-12-28

申请号：US18039341

申请日：2021-11-08

Applicant: SMS group GmbH

Inventor： Mario THOME ,  Regine AHREM ,  Jochen VOCHSEN

IPC: B21D5/01 ,  B21C37/08

CPC classification number: B21D5/015 ,  B21C37/0815

Abstract: A method for producing open-seam pipes from flat metal products, in particular sheet metal, includes a plurality of individual bending steps using at least one bending tool and at least one externally located lower tool. A plurality of positions of individual bending steps and the insertion depth of the bending tool are calculated in advance. Based thereon the flat metal product is then shaped step-by-step to form the open-seam pipe. After each of the bending steps, a target/actual comparison of the distance between two edges and/or between one of the two edges and the axial center line of the flat metal product is carried out. In case of a deviation, a correction value for the subsequent bending step is determined using a correction algorithm so as then to adapt the insertion depth for the bending tool.