Outer cylinder in the production process of storage tank

Tube section

1) Use wide and long plates as much as possible for the outer cylinder to reduce the length of the weld

2) The diagonal tolerance of the board must be confirmed before cutting the cylinder board. When the deviation is too large, the board edge shall be cut twice.

3) Cutting, cutting, edge planing (beveling), and bevel processing (blunt edge 6mm, 30 degree bevel) of the cylinder board. Choose the inner groove for the longitudinal seam of the cylinder.

4) The cylinder plate is connected to the plate assembly, manual welding spot solid welding, groove surface submerged arc welding, back carbon arc gouging to clean the root and polished with a grinding wheel to make the metallic luster, back submerged arc welding.

5) Before reeling, use tooling to take the lead at both ends of the barrel, and the size is confirmed according to the sample.

6) When coiling, the forming size must be confirmed with a template.

7) After the barrel is qualified, the manual welding spot is assembled and fixed.

8) Install the longitudinal seam support mold of the outer cylinder, and the installation position of the support mold should ensure that it can be welded.

9) Submerged arc welding is used to weld the longitudinal seam of the cylinder section, the back is carbon arc gouged to clean the roots and the metallic luster is polished with a grinding wheel, and the back is submerged arc welding.

10) Both ends of the cylinder body are equipped with the outer cylinder body circumferential seam welded supporting molds, and the roundness of the cylinder body is optimized by the screw adjustment. Remove the longitudinal weld support mold.