The thickness of the spinning head spinning head welding http://www.0312666.com/ Phone 0317-8210122 Mobile 13722724665 GB150-1998 will also be the cylinder and elliptical head butt weld ring is defined as Class A welded joints. A wall thickness calculation of the cylinder and head connection form, we first look at the calculation of the wall thickness of the container. 1.1 cylinder wall thickness calculation we know that the stress condition of the cylinder is a two-phase film stress, hoop stress is twice the axial stress, the internal pressure of the cylinder wall thickness is calculated from the cylinder internal pressure static balance conditions are derived. Figure 1 shows the internal pressure cylinder by trying.