Does anyone know about TIG welding? Please give an introduction
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Does anyone know about TIG welding? Could you give a brief introduction?
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This post was last edited by maysee on 2011-11-2 at 18:45. The advantages of TIG welding are the absence of slag and spatter during welding, good flaw detection capabilities, and a high level of cleanliness in the pipes after welding is completed. Currently, for welding process pipelines, TIG welding is generally used for the root pass, followed by MIG welding for the finish pass. It was previously mainly used for components where double-sided welding was not possible and full penetration of the weld was required. Before welding, temporary wind-shielding facilities should be set up to strictly control the wind speed at the welding site, as wind speeds above a certain level can easily cause porosity. At the same time, the pipe end should have a 30° bevel, and the area within 15 mm inside and outside the pipe end should be polished to reveal the natural color of the metal. The gap between the pipe ends should be 1~3 mm.