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Welding requirements for large stainless steel storage tanks


Release time:

2019-08-29

When welding the top plate of the large Wuxi storage tank and the hemming angle steel, the main welds shall be symmetrically and evenly distributed, and the welding shall be carried out in sections along the same direction. The inner welds shall be welded first, and the outer welds shall be welded later. The radial long welds shall be welded symmetrically at spaced joints. Before welding, the assembly quality shall be checked, and the groove surface and both sides of the groove shall be cleaned.20mm within the scope of rust, moisture and dirt, and should be dry.
The thickness of the polished steel plate shall not be less than the nominal thickness of the steel plate minus the negative deviation value. For the welding of the tank wall, the vertical weld is welded first, and then the circumferential weld is welded. After the longitudinal weld of two adjacent circles of wall plates is welded, the circumferential weld between them is welded. The welders are evenly distributed and welded in the same direction. Tack welding and fixture welding shall be performed by qualified welders, and arc striking shall not be on the base metal or completed weld bead. The welding requirements of large storage tanks are the above. Only good welding can the storage tank have good quality.