公开(公告)号：US20200338668A1

公开(公告)日：2020-10-29

申请号：US15998660

申请日：2017-02-16

申请人： Saipem S.p.A

发明人： Adriano Calzavara ,  Davide Rossin ,  Alessandro Bailini

IPC分类号： B23K26/282 ,  B23K13/01

摘要： A method of laser beam welding two pipes together, the method including the steps of arranging two pipes such that a gap is provided between opposed surfaces of the pipes, heating at least one of the pipes by induction heating while the gap is provided between the opposed surfaces of the pipes, and subsequently laser beam welding the opposed surfaces of the pipes together.

公开(公告)号：US10527514B2

公开(公告)日：2020-01-07

申请号：US15576166

申请日：2016-05-20

申请人： SAIPEM S.p.A.

发明人： Adriano Calzavara ,  Giancarlo Bernasconi ,  Massimo Signori

IPC分类号： G01B17/04 ,  G01N29/06 ,  G01N29/44 ,  F16L1/20 ,  G01B17/08 ,  G01N22/02 ,  G01N29/11 ,  G01N29/34 ,  G01N29/46 ,  G01N29/48 ,  G01M3/24 ,  F16L1/235

摘要： A system and method remotely measure in real time through sound waves, geometric parameters of a pipeline in the launch step. An acoustic transceiver positioned in a pipeline includes an acoustic transmitter emitting an input acoustic signal into the pipeline, based on an electric pilot signal. An acoustic receiver detects the input acoustic signal and generates a first electric measurement signal, dependent on the input acoustic signal. The acoustic receiver receives an input return signal dependent on the input acoustic signal and on pipeline geometric parameters, and generates a second electric measurement signal based on the return acoustic signal. A control unit generates an electric pilot signal and connects to the acoustic transceiver and receives the first electric measurement signal and the second electric measurement signal. The control unit measures the geometric parameters of the pipeline based on the first and second electric measurement signals.