公开(公告)号：US11585788B2

公开(公告)日：2023-02-21

申请号：US16343344

申请日：2017-10-10

Applicant: SAIPEM S.A.

Inventor： Nicolas Feuilly ,  Marco Aurelio Occhilupo ,  Eric Kerdiles

IPC: G01N29/04 ,  B23K31/12 ,  G01N29/22 ,  G01N29/24 ,  G01N29/265 ,  B23K9/02 ,  B23K9/028 ,  G01N29/11 ,  G01N29/44 ,  G10K11/35

Abstract: A method of automatically inspecting a weld bead deposited in a plurality of passes in a chamfer formed between two parts by performing the following steps: positioning at least one emission electromagnetic acoustic sensor on one side of the chamfer and at least one reception electromagnetic acoustic sensor on an opposite side of the chamfer, the ultrasound wave emission sensor being configured to emit Rayleigh surface waves; while depositing a pass, automatically moving the sensors to follow the movement of welding electrodes along the chamfer; activating the sensors while they are moving to enable the emission sensor to generate and emit Rayleigh waves towards the pass of the weld bead that is being deposited, the reception sensor receiving the ultrasound signals transmitted and/or reflected in said pass; and reiterating the operation for the entire pass of the weld bead.

公开(公告)号：US10648607B2

公开(公告)日：2020-05-12

申请号：US16495618

申请日：2018-02-22

Applicant: SAIPEM S.A.

Inventor： Antonio Carlucci ,  Eric Kerdiles ,  Roberto Palladini

IPC: B23K9/00 ,  F16L58/08 ,  F16L13/02 ,  F16L58/18 ,  B23K103/04 ,  B23K101/10 ,  B23K9/04

Abstract: A process for lining a steel pipe for the subsea transport of fluids comprises machining of an annular cavity in an inner wall of the pipe to be lined. The cavity is set back longitudinally relative to an end of the pipe. The deposition by welding of a first resurfacing layer includes a corrosion-resistant metal alloy on the inside of the cavity. Surface machining of the first resurfacing layer is done to the internal diameter of the pipe. A liner made of corrosion-resistant steel alloy is introduced into the pipe. Deposition by welding includes at least one second resurfacing layer made of corrosion-resistant metal alloy on the inner wall of the pipe between the end of the liner in contact with the first machined resurfacing layer and the corresponding end of the pipe. Surface machining of the second resurfacing layer is done to the internal diameter of the pipe.