Paper Title:
Automatic Hyperbaric Welding of Sub-Sea Pipelines Repair
  Abstract

Air diving are widely used in many shallow water areas, if applicable welding technology adaptive to such a condition developed, then operation cost of offshore structure repairs can be largely saved. In order to meet such a special requirement, an automatic GTAW welding process under high air pressures was researched. Firstly, the hyperbaric welding test chamber was designed and constructed in laboratory, and the welding machine was manufactured. Secondly, experiments under 1-7 bar air pressures were studied including linear welds and pipe butt welds, and high weld quality was obtained. Lastly, the hyperbaric welding sea-trial was carried out, and perfect 5G girth weld of sub-sea pipelines was produced.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
3478-3483
DOI
10.4028/www.scientific.net/AMR.189-193.3478
Citation
C. F. Zhou, X. D. Jiao, L. Xue, J. Q. Chen, X. M. Fang, "Automatic Hyperbaric Welding of Sub-Sea Pipelines Repair", Advanced Materials Research, Vols. 189-193, pp. 3478-3483, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Liang Zheng Jiang, Xiang Dong Gao
Chapter 1: Engineering Design. Theory and Practice
Abstract:Detecting the weld pool width is prerequisite to control the welding quality. However, in an arc welding process, it is difficult to obtain a...
379
Authors: Shahfuan Hanif Ahmad Hamidi, Abdul Ghalib Tham, Yupiter H.P. Manurung, Sunhaji Kiyai Abas
Chapter 3: Casting and Joining
Abstract:The cost of development of WPS will be very expensive if the welding parameter is selected based on trial and error. Optimal welding...
185
Authors: Jun Xiao, Guang Jun Zhang
Chapter 15: Welding & Joining
Abstract:A low-current GMAW experimental system is established using a constant current power supply and a controlled wire feed system. The metal...
2299
Authors: Guo Hong Ma, Yu Ming Zhang
Chapter 2: Material Processing Technology, Technologies of Application of Materials
Abstract:This paper designed a double-electrode GMAW(gas metal arc welding) system. This system includes main arc and bypass arc. Main arc (Base metal...
333
Authors: Xu Ming Wang, Wei Liang, Su Hong Sun
Chapter 3: Applied Mechanics in Mechanical Engineering
Abstract:This paper introduces that the transverse rotating magnetic filed, of which excitation current and frequency can be altered respectively, is...
148