CO2MAG gas welding in the construction of _1463

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CO2/MAG gas welding in the construction of

Together in the all-position welding. SMAW welders are used as the operation of technology,[link widoczny dla zalogowanych], its operating practices copied to C means the welding operation, resulting in all-position weld construction of 60 chemical 2ore 24 of No. 5 bad,[link widoczny dla zalogowanych], uneven, such as welding undercut defects. We recommend that all position 0 welding operation should be adopted against the crescent marksmanship shown in Figure 3. Wang Yue f ■ luxuriant Trinity ring 3 crescent ■ ● ■ bean donut show is when the manual metal arc welding method and the serrated crescent method are inevitably bring vertical welding, all position welding of weld depressions, undercut, etc. process defects. National co, welders best players race against the crescent shipment of guns used technique, vertical welding and overhead position welding test plate forming side welding, weld smooth appearance and beautiful shape, x-ray film I level without defects,[link widoczny dla zalogowanych], the level of access to super high-quality weld. 7.2 chemical, petrochemical, oil and gas pipeline welding commonly used argon welding process and the Union for a vertical down welding of cellulose. Tangshan Matsushita production 400AT2 Series inverter DC arc welding machine has two models,[link widoczny dla zalogowanych], with simple TIC. DC arc welding machine and a dedicated output pin with cellulose multi-purpose electrode DC arc welding machine. Outside the output characteristic curve shown in Figure 4. 050l ∞ l ∞ throw 25O ■ January Xiang 35O4m0 black friends tt) outside the circle 4YD a 400Kr2 characteristic curve can be seen by the output characteristic curve, when the electrode short straps, the maximum output current back to pushed to zero, rather than the maximum short circuit current. For GTAW short arc process characteristics. Reduced tungsten burning. Short arc (arc scratch), the tungsten arc current ~ <20A, igniting dozens of times, tungsten tip intact. West-East Gas Project pipeline welding electrode with cellulose backing, COdMAC automatic welding filling and capping or cored welding wire to protect themselves such as filling and capping combined process of welding in high strength steel pipe welding process on a new breakthrough. 8 Summary 0 welding efficiency, quality, comprehensive advantages of low cost unmatched by other welding methods, both at home and abroad are developing very rapidly: in the chemical, petrochemical, oil and gas construction projects, mainly used for welding low carbon steel, ordinary low-alloy steel and low alloy high strength steel, you can also heat-resistant steel and stainless steel welding. To do with the protection of argon gas for welding aluminum, copper, titanium and other non-ferrous metals. Weld thickness range can be wide, from the 0.5ram to 150nma; also can repair welding and welding technology, easy all-position welding and automatic welding. co, is gradually replacing the welding arc welding, and the partial replacement of the submerged arc welding. The near future, these industries will be the development of the domestic shipbuilding industry very, C02 welding share of 60% to 70%, will be based industry to bring better welding quality and economic benefits. Wen Lu national reference co2 gas welding string together promote the use of paper exchange. (National Association for string together series of welding workers In 1989 the Commission published in August) Welding Worker Information Manual (Mechanical Industry Press, the year 1999 edition) co, Welding Technology and Applications (Harbin Institute of Technology Press, In 1992 Edition) Welding Handbook, the first Vol. Welding methods and equipment (Mechanical Industry Press .2 fl01 edition) Welding Engineering Analysis and imperfections (string together with Mr and Mrs Li. Machinery Industry Press, .1998 version)