EXPERIMENTAL ANALYSIS OF CARBON STEEL MATERIAL USING SUBMERGED ARC WELDING PROCESS IN GATE VALVE USED IN PRESSURE VESSEL

CAD/CAM ENGINEERING

Welding plays very important role in fabrication industry and to ensure the quality of fabrication, all the welding shall be defects free. For ensuring the quality of welding joints and finally the integrity of the equipment, various inspection and testing methods are available in today’s modern industries to improve the welding quality at the corner joints of the gate valve which is used in pressure vessel by using the different welding process of the SAW, TIG welding were used to made the joints the amount of porosity and distortion were identified by using different NDE examination while using SAW welding the joins the materials which will results more distortion and porosity at the end corners. Then by using the TIG welding to join the material which 80% less porous and distortion. Usually the submerged arc welding is performed for the gate valves used in the pressure vessels but open performing the saw process there are some defects occurring at the gate valves especially at the corners and one such defects that occur at the corner is porosity. In order to overcome this defect we came with the solution of performing Gas tungsten arc welding at each and every joint employed in the gate valves.

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