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Liquefied gas storage tank spot weld

Reasonable welding sequence for liquefied gas storage tanks

Liquefied gas storage tank welding process requirements

Content

When welding the medium-width plate, spot-welding should be carried out side by side. When spot-welding, the two bottom plates should be close to each other, and the gap between the groups should be controlled below 1mm; a section of spot-welding seam should be welded every 500mm, and the length of the spot-solid welding seam is 50mm. For the stacked part of the three-layer steel plate of the lap joint, the upper bottom plate should be cut according to the requirements. The length of the cut corner should be twice the length of the lap joint, and the width should be 2/3 of the length of the lap joint. The upper layer should be welded before laying the upper bottom plate fillet welds covered by the bottom plate,

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