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Reasonable welding sequence for liquefied gas storage tanks

Angular deformation The onset of angular deformation is due to the uneven temperature distribution along the thickness direction of the joint at the joint, resulting in the deformation caused by i...

Liquefied gas storage tank bottom plate welding

Liquefied gas storage tank spot weld

Content

Angular deformation The onset of angular deformation is due to the uneven temperature distribution along the thickness direction of the joint at the joint, resulting in the deformation caused by inconsistent transverse shortening. Solution: Reasonable welding sequence When welding the bottom plate of the tank, the deformation of the marginal plate is reserved in advance. For the welded lng storage tank with common edge plate, unequal gaps are used at the outer edge of 300mm, the outer gap is 4-5mm, and the inner gap is 9-10mm.

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