Svetsaren_nr2 definitief (Page 1) - Esab

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THE ESAB WELDING AND CUTTING JOURNAL VOL. 57 NO.2 2002 Articles in <strong>Svetsaren</strong> may be reproduced without permission but with an acknowledgement to ESAB. Publisher Bertil Pekkari Editor Ben Altemühl Editorial committee Klas Weman, Björn Torstensson, Johnny Sundin, Johan Elvander, Lars-Erik Stridh, Lars-Göran Eriksson, Uwe Mayer, Manfred Funccius, Dave Meyer, Donna Terry, Tony Anderson Address ESAB AB, Box 8004, SE-402 77 Göteborg, Sweden Internet address http://www.esab.com E-mail: info@esab.se Lay-out: Duco Messie, Printed in the Netherlands Advanced Materials Contents Vol. 57 No. 2 2002 3 High deposition welding of Francis turbine runners for the Three Gorges dam project. The article informs about the world's largest hydro power project ever, and describes ESAB's involvement in the welding of the Francis turbine runners. 26 Synergic Cold Wire submerged arc welding Results of research on the application of this new, cost-efficient welding process to stainless steel. 9 Welding of copper-nickel alloys at Kvaerner Masa-Yards. The orbital TIG welding of copper-nickel alloy pipes as an alternative to brazing. 32 Welding tramway rails in Bucharest A report on the use of ESAB's enclosed welding technique for the joining of tramway rails. 11 Friction Stir Welding- progress in R&D and new applications The article presents recent R&D results, a new machine series, and a fascinating new application in the welding of thick copper. 36 The mechanised MAG welding of the Clare natural gas line. The use of OK 12.65 copper-free wire in the mechanised GMAW of a new extension of the Irish national gas grid. 14 Welding of supermartensitic stainless steels. The orbital narrow gap girth welding of pipes and the dissimilar joining of supermartensitic and superduplex pipes. 39 Consumable development for oxidising chloride containing process environments. Research work at VTT Technical Research Centre in Finland. 21 Chicago Bridge & Iron Company meets challenge of stainless steel welding for cryogenic rocket fuel tanks The welding of cryogenic storage tanks for the Boeing Space Launch Complex 37 at Cape Canaveral Air Force Station. 45 CIMTAS, an international player in power generation and energy storage. The article reviews CIMTAS, a Turkish fabricator of power plants and other energy related constructions. The fabrication of two very large LNG tanks is highlighted. 22 Welding high strength pipelines - from laboratory to field. A survey of the developments in the mechanised GMAW of pipelines in X80 type high strength steel. 50 Stubends & Spatter Short news
High deposition welding of Francis turbine runners for the Three Gorges dam project By: Nils Thalberg, Solveig Rigdal, Leif Karlsson, John van den Broek and Herbert Kaufmann, ESAB AB This paper was originally presented at the Stainless Steel World America 2002 Conference. The world’s largest hydroelectric project, the Three Gorges dam in China, will comprise 26 Francis turbines for the production of electricity. Each turbine runner is 10m in diameter, weighs 450 tonnes and will generate 700 MW. The runners are made of solid 410 NiMo type martensitic stainless steel (13% Cr, 4% Ni, 0.5% Mo) castings. Welding is used for the assembly and repair of casting defects. ESAB is involved in the production of the runners with consumables and equipment for SAW and GMAW. Figure 1. Location of Three Gorges Dam. Three Gorges – the world’s largest hydroelectric project In 1994, construction work began on the massive Three Gorges dam near Yichang (Fig. 1). This dam is expected to help control the flooding of the Yangtze River valley; in addition, river flows will make the Three Gorges complex the largest electricity generating facility in the world. The negative consequences of the project include the forced relocation of more than one million people and the permanent flooding of many historical sites, not to mention the feared environmental effects. A lake about 650km long with an average width of 1.1km will form behind the dam, which is 185m high and about 2,309m wide. The water storage capacity of the dam will be 39.3 billion cubic metres handling 451 billion cubic metres of Yangtze River water flowing into the reservoir every year. Dam sponsors say that the 22.1 billion cubic metre flood control storage capacity of the reservoir should reduce the frequency of large downstream floods from once every 10 years to once every 100 years. The Yangtze River was diverted after four years in <strong>Svetsaren</strong> no. 2 • 2002 • 3
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Page 5 and 6: Crown Vanes Band Figure 3. Main com
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Repair and maintenance of a new all
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ESAB AB, Box 8004, S-402 77 Götebo
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