Svetsaren 1/2008 - Esab

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Table 2. Weld metal properties at -50°C in 70mm plate from a WPS comparable to the weld of figure 5. Cv-impact energy [J] Average 1st welded side V-joint, SAW-twin 2 mm subsurface 111J 94J 90J 98J 2nd welded side U-joint, SAW-triple 2 mm subsurface 110J 102J 104J 105J Root area 50 mm depth 112J 154J 150J 139J welding process manually and the system automatically completes the full welding sequence, including the positioning of split beads across the width of the joint. If necessary, the operator can change to manual control at any time. Figure 7 shows an example of an absolutely flawless heavy weld obtained in this manner. Weld metal properties at -50°C, from a related welding procedure qualification for Q7 in 70mm plate thickness, are given in table 2. Sif Group bv is particularly impressed with the performance of the ESAB wire feeders on the narrow gap equipment and the LAF 1250 and TAF 1250 power sources. The installation operates 24 hours a day, with minimal maintenance, and has not given a single problem over a period of 2 years. Figuur 8. Portal welder for circumferential welding, in operation. Sif Group bv Reference list of windfarm projects. • 1994 Medemblik, Netherlands 4 Monopiles Ø 3.500x35x28.000mm Weight 346 ton • 2002 Horns Rev, Denmark 80 Monopiles ø 4.000x50x58.000mm Weight 11.080 ton 80 Transitions ø 4.240x35x15.000mm Weight 5.325 ton • 2003 North Hoyle, United Kingdom 30 Monopiles ø 4.000x30:70x58.000mm Weight 8.508 ton 30 Transitions ø 4.200x35x12.300mm Weight 1.150 ton • 2003 Arklow, Ireland 7 Monopiles ø 5.000x50x45.000mm Weight 1.931 ton 7 Transitions ø 5.390x45x15.150mm Weight 929 ton A bright future in wind energy By timely investment in new welding technology and production facilities, Sif Group bv has been able to gain a strong foothold in the Western European offshore wind energy market and made a major contribution to the generation of clean energy. The project list at the end of this article highlights the company’s reputation as a reliable partner for large wind energy projects. With many new wind energy projects anticipated, the future looks bright. Partnered with ESAB for welding technology, the company can be assured of a supplier that understands its needs and can respond to its specific requirements. • 2004 Kentish Flat, United Kingdom 30 Monopiles ø 4.300x50x37.000mm Weight 5.013 ton 30 Transitions ø 4.540x35x12.050mm Weight 1.823 ton • 2005 Barrow, United Kingdom 30 Monopiles ø 4.750x45:75x51.000mm Weight 11.320 ton 30 Transitions ø 5.100x55x21.600mm Weight 3.460 ton • 2006 Burbo, United Kingdom 25 Monopiles ø 4.700x45:75x37.000mm Weight 5.307 ton 25 Transitions ø 5.390x45:67x22.350mm Weight 3.994 ton • 2006 Beatrice, United Kingdom 2 sets Central Pipe, Legs & Pilesleeves Weight 832 ton 8 Piles ø 1.869x60/80x42.500mm Weight 935 ton • 2006 Onshore Tripod Multibrid, Germany 1 Main column ø 6.000x35:75x26.000mm Weight 203 ton 3 Pileguides ø 2.900x40:65 x 9.000mm Weight 102 ton • 2006 Q7, The Netherlands 61 Monopiles ø 4.000x35:79x54.000mm Weight 18.700 ton 61 Transitions ø 4.200x35:57x19.000mm Weight 5.340 ton • 2007 Lynn & Inner Dowsing, UK 54 Monopiles Ø 4.740x50/75x36.000mm Weight 12.100 ton 54 Transitions Ø 5.100x45/67x22.050mm Weight 9.100 ton ABOUT THE AUTHORS: ERIC DE MAN, BSC, EWE, IS PRODUCT MANAGER CONSUMABLES AND KEY ACCOUNT MANAGER AT ESAB NEDERLAND B.V., AMERSFOORT, THE NETHERLANDS. WILLIAM LAFLEUR, BSC, EWE, IS MATERIAL & WELDING ENGINEER AT SIF GROUP BV, ROERMOND, THE NETHERLANDS. 22 - Svetsaren no. 1 - 2008
Zorya-Mashproekt relies on ESAB for arc welding of gas turbine components YURIY BUTENKO, SE RPCGTI ZORYA-MASHPROEKT, NIKOLAEV, UKRAINE AND ALEXEY BELIKOV, ESAB RUSSIA, MOSCOW, RUSSIA. The Zorya-Mashproekt Gas Turbine Building Research and Production Complex is a leading Ukranian producer of industrial gas turbines and marine gas turbine power plants and engines. Although, today, naval demand is far from exhausted, particular emphasis is placed on the production of civil equipment. In the wake of associated technical developments, the company recently invested in state-of-the-art ESAB arc welding systems. The Zorya-Mashproekt Gas Turbine Building Research and Production Complex was founded in the early 1950s in Nikolaev, Ukraine, for the development and production of gas turbine equipment and reducers for vessels of the USSR Navy. In the 1970s, the company was assigned to develop and manufacture gas turbines for use in compressor stations on trunk gas lines and in mobile and stationary power plants. Over more than half a century, Zorya-Mashproekt has produced four generations of gas-turbine engines, used in around 500 battleships and commercial vessels. Twenty-four power plants, with a total capacity of 1120 MW, and over 500 gas compressor units, with a total capacity of more than 6000 MW, are equipped with the company’s gas turbines. Today, Zorya-Mashproekt products compete with leading fabricators around the world, the main products being engines based on the DO71, DO90 and DO80 gas turbines with a capacity of 6, 16 and 25 MW respectively. A new engine, DN70, with a capacity of 10 MW and an efficiency of 35%, is under development. It will replace technically outdated and less efficient turbines. Another development, demanded by the power generation industry, is a one-shaft engine with a capacity of 45-60 MW. ESAB assessment and advice Various steels and alloys are used in modern gas turbines, for example, CMn steels, low-alloyed steels, austenitic and martensitic stainless steels, high-alloyed steels and nickel-base alloys. Some components are made of titanium (eg, turbine fans). When producing turbine parts, minimum weight and maximum material utilisation are Figure. 1. Zorya-Mashproekt’s DN-80 25MW gas turbine. Svetsaren no. 1 - 2008 - 23
Page 1 and 2: THE ESAB WELDING AND CUTTING JOURNA
Page 3 and 4: Svetsaren ENERGY Articles in Svetsa
Page 5 and 6: Contents 07 15 18 23 26 32 34 37 Te
Page 7 and 8: Template for monster platform chall
Page 9 and 10: Table 2. Preheat and interpass proc
Page 11 and 12: Figure 4. FCAW of the sleeves - the
Page 13 and 14: Figure 11. Vertically-up welding wi
Page 15 and 16: Port of Marseille sees LNG storage
Page 17 and 18: of the roof, involving an overall c
Page 19 and 20: Figure 1. One of the monopiles bein
Page 21: equipment and the welding heads get
Page 25 and 26: 25 ±2° 25 ±2° 4 +1 ring copper
Page 27 and 28: A complete and reliable partner for
Page 29 and 30: the power source via the welding he
Page 31 and 32: the coating thickness can be reduce
Page 33 and 34: Deformation control was a major obs
Page 35 and 36: ESW Inconel strip cladding - soluti
Page 37 and 38: Mechanised pipeline welding in the
Page 39 and 40: motion, while changing from standin
Page 41 and 42: Cladding of valves for petrochemica
Page 43 and 44: Techint and ESAB Brazil - partners
Page 45 and 46: Table 2. OK 48.08 technical feature
Page 47 and 48: Manufacture of mobile gasoline tank
Page 49 and 50: Table 2. Mechanical properties: but
Page 51 and 52: Belleli Energy SpA reactors at the
Page 53 and 54: Figure 2. Cross section of an SAW w
Page 55 and 56: The Shell Gas-to-Liquids (GTL) Proc
Page 57 and 58: Quality and productivity. Weld qual
Page 59 and 60: FLEXIBLE HEAVY-DUTY SOLUTIONS FOR M
Page 61 and 62: spatter, smaller droplets and pause
Page 63 and 64: ESAB LAUNCHES NEW ORIGO WELDING MAC
Page 65 and 66: TRAMTRAC TM II - A COST-EFFICIENT A
Page 67 and 68: OK FLUX 10.77 - SPIRAL PIPEMILL FLU
Page 69 and 70: OK FLUX 10.18 + OK BAND NICU7 NEW A
Page 71 and 72: Gas Consumable Current Arc voltage

Svetsaren 1/2008 - Esab

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