UNDERWATER WELDING IN NUCLEAR POWER PLANTS
- Development of underwater laser cutting technique for steel and zircaloy for nuclear applications. Jain, R.; Agrawal, D.; Vishwakarma, S.; Choubey, A.; Upadhyaya, B.; Oak, S. // Pramana: Journal of Physics;Dec2010, Vol. 75 Issue 6, p1253
In nuclear field, underwater cutting and welding technique is required for post-irradiation examination, maintenance, decommissioning and to reduce storage space of irradiated materials like used zircaloy pressure tubes etc., of nuclear power plants. We have developed underwater cutting...
- Effect of Boric Acid Concentration on Viscosity of Slag and Property of Weld Metal Obtained from Underwater Wet Welding. Guo, Ning; Guo, Wei; Xu, Changsheng; Du, Yongpeng; Feng, Jicai // Journal of Materials Engineering & Performance;Jun2015, Vol. 24 Issue 6, p2563
Underwater wet welding is a crucial repair and maintenance technology for nuclear plant. A boric acid environment raises a new challenge for the underwater welding maintenance of nuclear plant. This paper places emphasis on studying the influence of a boric acid environment in nuclear plant on...
- Design of underwater welding robot used in nuclear plant. Ximin Lv; Yufei Liu; Haibo Gao; Liang Ding; Jianguo Tao; Kerui Xia; Zongquan Deng // Key Engineering Materials;2014, Vol. 620, p484
Through the analysis of operational requirements and environmental characteristics of nuclear power plant pool, we propose the design of underwater welding robot and establish the 3D model. Then, we introduce special functions and system composition of the robot in detail. After that, we propose...
- Technology Notes. // Inspection Trends;Jan2013, Vol. 16 Issue 1, p14
The article presents corrections to some of the figures pertaining to Underwater Welding Code which were published in the journal's January 2013 issue.
- Emergency welding kit may go subsea. LeBlanc, Leonard // Offshore;Feb97, Vol. 57 Issue 2, p30
Focuses on the use of thermite-metal foils in underwater welding. Applying in open-air repairs; Features of the welding process.
- Cranfield simulates 5,000 ft deep weld. LeBlanc, Leonard // Offshore;Apr97, Vol. 57 Issue 4, p30
Reports that Cranfield University in England, has successfully executed a plasma weld inside a hyperbaric chamber that simulated a water depth of 5,000 feet.
- Welding Under the Surface-- 'Every Diver Has a Story to Tell' Ferry, Marylou // Welding Design & Fabrication;Jul2002, Vol. 75 Issue 7, p24
Focuses on the safety regulations imposed by companies during the underwater welding in the U.S. Views of Mike Wheatly, an experienced wekder on safety measures; Danger of electric shocks; Details of the subsurface welding applications. INSET: Classes of Underwater/Wet Welds.
- Underwater Welds Repair Major Hull Damage. // Welding Journal;Jan2012, Vol. 91 Issue 1, p8
The article focuses on the underwater welding repair which was performed by a nine man team of Hydrex NV to the shell plating of a bulk carrier which was indented after a grounding in Suez Canal, Egypt.
- Cranfield University Reaches Record Breaking Depths in Deep Sea Welding. // Welding Journal;Jun2011, Vol. 90 Issue 6, p12
The article reports on a research study at Cranfield University in England which has led to new record depths in deep subsea welding that will impact the offshore pipeline industry across the oil and gas and renewable energy sectors.