公开(公告)号：US20220305594A1

公开(公告)日：2022-09-29

申请号：US17637160

申请日：2020-08-31

Applicant: SMS GROUP GMBH

Inventor： Michael STARK

IPC: B23K37/02

Abstract: The invention relates to a device (1) for the internal welding of pipes and profiles, comprising a cantilever arm (2, 2a), which is secured to a suspension (3), which cantilever arm can be inserted into the pipe or profile to be welded and on which a welding head (4) is displaceably attached, the cantilever arm (2, 2a) further comprising at least one laser (5) and at least one camera (6). To avoid the disadvantageous effects of magnetism and heat on the position of the welding head (4), the invention proposes that a laser (5) is attached on the suspension (3), and a camera (6) for observing the laser beam (5a) is attached on the end of the cantilever arm (3) or on the welding head (4). A correction signal is calculated from the change in position of the laser beam (5a) observed with the camera (6) and forwarded to a control unit for adjusting the welding head (4) by means of displacement devices (8, 9).

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：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：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.