Wrapping Series profiles very quickly in the last two years of development, in the development of our decoration industry also played a very important role, because of the multi-purpose coating series features profiles of gradually replacing some of the other sections, played in the decoration industry an important role in the decoration industry is an indispensable part of the welding, and coating Here we take a look at the series profiles covering series of profiles in terms of some of the marked welding. Here we look at the common welding processes: Almost all kinds of welding methods can be used for welding aluminum and aluminum, but aluminum and aluminum adaptability to different kinds of welding methods, various welding methods have their own application occasions. Gas welding and arc welding methods, equipment is simple, easy to operate. Welding can be used for less demanding welding quality aluminum sheet and welding castings. SMAW welding can be used for aluminum castings. Inert gas welding (TIG or MIG) is the most widely used method of aluminum and aluminum welding methods. Aluminum and aluminum alloy sheet can be tungsten or tungsten AC TIG pulse welding. Aluminum and aluminum alloy plate can be tungsten arc welding of helium, argon, helium mixed gas tungsten arc welding, MIG welding, pulsed MIG welding. MIG welding, pulsed MIG welding is widely applied (argon or argon / helium mixture) prepared first before welding, soldering before cleaning: aluminum and aluminum alloy welding, should be strictly removed before welding workpieces oxide film and the oil and weld wire surface; if stored too long (if more than 24 h) should be re-treated after cleaning. Second, the plate: aluminum at high temperatures, low intensity, good flow properties of liquid aluminum weld metal during welding prone to staying phenomenon. To ensure penetration but not collapse, welding is often used to hold the plate near the pool and metals. Plate can be graphite plate, stainless steel, carbon steel, copper, or copper and so on. Surface of the pad to open a circular grooves, in order to ensure the weld negative shape. You can not add side welding plate forming, welding operation but requires skilled or take strict energy arc welding automatic feedback control measures and other advanced technology. Third, preheat: thin, small pieces of aluminum generally do not preheat, preheat can be 10 mm ~ 15 mm thickness, the different types of aluminum alloy preheating temperature for 100 ℃ ~ 200 ℃, available oxygen-acetylene flame, furnace or other heating blowtorch. Preheat weldment can reduce distortion, reduce porosity and other defects. Treatment after welding. About clad series of profiles on some aspects need to weld welding method, understanding some aspects of some of the criteria for welding, better play a more important role for our decorations. Coated series of profiles: www.sdruilian.com