Automatic Hyperbaric Welding of Sub-Sea Pipelines Repair

Can Feng Zhou; Xiang Dong Jiao; Long Xue; Jia Qing Chen; Xiao Ming Fang

doi:10.4028/www.scientific.net/AMR.189-193.3478

Paper Titles

Research of Thermal Anchor Attachment for ITER Magnet Supports
p.3462

Effects of Ultrasonic Power on Bonding Strength of Anisotropic Conductive Film Joint in Chip-on-Glass Assembly
p.3466

Prediction and Application of Welding Residual Deformation of Steel Sheets
p.3470

Fabrication of Fuel Reforming Catalytic Coatings for Hydrogen Production by Cold Spray Technology
p.3474

Automatic Hyperbaric Welding of Sub-Sea Pipelines Repair
p.3478

Manual Self-Propagating High-Temperature Synthesis Welding of 45 Steel
p.3484

Effects of Rare Earth Elements Erbium and Cerium on the Properties of Hardfacing Alloy
p.3488

Vertical Vibration of Pile Groups in Soil Described by Fractional Derivative Viscoelastic Model
p.3492

Improving Low-Ag Pb-Free Solder Performance by Adding Bi, Ni Elements
p.3498

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Automatic Hyperbaric Welding of Sub-Sea Pipelines...

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.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

3478-3483

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.3478

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Online since:

February 2011

Authors:

Can Feng Zhou, Xiang Dong Jiao, Long Xue, Jia Qing Chen, Xiao Ming Fang

Keywords:

Automatic Welding Machine, Gas Tungsten Arc Welding (GTAW), High Air Pressure, Hyperbaric Welding, Sub-Sea Pipeline, Test Chamber

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References

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