Results 21 to 30 of about 11,150 (222)
Measurement and Analysis of the Diffusible Hydrogen in Underwater Wet Welding Joint
MATEC Web of Conferences, 2016 The diffusible hydrogen in steel weldments is one of the main reasons that led to hydrogen assisted cracking. In this paper, the results of literatures survey and preliminary tests of the diffusible hydrogen in underwater wet welding joint were presented.
Kong Xiangfeng +5 more
doaj +1 more source
Application Study of Edge Detection for Droplet in Laser Enhanced GMAW Welding
Advances in Mechanical Engineering, 2014 Ambient pressure has a certain inhibiting effect on underwater welding droplet transfer and the stability of welding process. Good droplet transfer of underwater welding plays an important role in improving repairing quality of underwater structures.
Zhu Jialei, Jiao Xiangdong, Qiao Xi
doaj +1 more source
Metals, 2020 High susceptibility to cold cracking induced by diffusible hydrogen and hydrogen embrittlement are major obstacles to greater utilization of underwater wet welding for high-strength steels. The aim of the research was to develop gas–slag systems for flux-
Sergey G. Parshin +2 more
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Metals, 2023 Alumino-thermic additions to the flux-cored wire can be utilized to enhance welding heat input, improve welding productivity, and minimize the dependency on power sources in the air environment.
Jibo Wang +7 more
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Materials & Design, 2023 Underwater wet welding is widely used in offshore platform maintenance, oil pipeline repair and wreck salvage operations. A high diffusible hydrogen content is recognized as one of the critical reasons behind the reduction in the reliability of ...
Ning Guo +5 more
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Analisa Perbandingan Laju Korosi Pada Pengelasan Di Bawah Air Karena Pengaruh Variasi Jenis Pelindung Flux Elektroda [PDF]
, 2013 Underwater welding diperlukan karena pada umumnya struktur yang beroprasi di laut dirancang kurang lebih 20-30 tahunan dan selama rentang waktu tersebut maka konstruksi tersebut haruslah terjamin dari segi keselamatan dan kekuatannya.
Pranata, S. A. (Septian) +1 more
core +3 more sources
International Journal of Engineering and Advanced Technology, 2019 Welding demand in toward the ocean and marine applications is extended with the growing in oil and gas practices just as extending in the marine transportation and mechanical applications. In this paper, a succinct delineation of the particular business submerged frameworks will be displayed considering exhibiting natty lumpy portrayal of several ...
V. Priya, M.Chandra Mohan, J. Dhanasekar
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Control weld geometric parameters when wet underwater welding
Pidvodni tehnologii, 2020 The aquatic environment has a significant impact on the efficiency of heat input to the base metal, significantly reducing the efficiency of the arc. As a result, in wet underwater welding, the penetration of the base metal is reduced compared to welding in the air with the same mode parameters.
Yanfei, Han, Ning, Guo, Jicai, Feng
openaire +3 more sources
Journal of Materials Research and TechnologyUnderwater hyperbaric dry welding, as a superior underwater welding method, is commonly applied in shipwreck salvage and subsea pipeline maintenance. Due to the use of an automatic welding arm for repairing the welding area, the preset and selection of ...
Kang Zhang, Zhengjie Yang
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A stable and accurate control-volume technique based on integrated radial basis function networks for fluid-flow problems [PDF]
, 2011 Radial basis function networks (RBFNs) have been widely used in solving partial differential equations as they are able to provide fast convergence.
Mai-Duy, N., Tran-Cong, T.
core +2 more sources