Related searches for electrical resistance welded tubing erw

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Electric resistance welding (ERW) refers to a group of welding process such as spot and seam welding that produce coalescence of faying surfaces where heat to form the weld is generated by the electrical resistance of material combined with the time and the force used to hold the materials together during welding.en.wikipedia) pipeis manufactured by cold forming a flat steel strip into a rounded tubeand passing it through a series of forming rollers to obtain a longitudinal seam.The two edges are then simultaneously heated with a high frequency current and squeezed together to form a bond.ERW Pipe Electric Resistance Welded ,page1.