Liquefied gas storage tank welding process requirements

Use a ball hammer or arc hammer to make a smooth transition at the lap joint. The first layer of weld bead adopts segmental concession welding or jump welding method, and the welding should be carried out in the order of welding the short seam first and then welding the long seam. 2. Reduce welding heat. According to the actual situation of the welders on site, rationally equip the number of welders to strictly control the heat generated during welding; in addition, according to the requirements of the welding process, strictly control the large welding current to fundamentally reduce the shrinkage of the plate. During welding, the interpass temperature should also be strictly controlled within 100°C.