High neck flange as a new form of flange connection of steel pipe tower has been proved to be advanced and reliable. It plays a vital role in improving the production capacity and product quality of steel pipe tower.
There are two main methods for the early circumferential welding of UHP high neck butt welding flange and steel pipe: manual gas shielded welding and full-automatic swing gas shielded welding.
Based on the above two welding methods, the manufacturer of individual ultra-high pressure steel pipe tower has independently developed a special internal and external submerged arc welding machine to realize the circumferential welding of high neck butt welding flange and steel pipe according to the characteristics of the welding process. This process uses submerged arc welding to conduct double-sided penetration welding of the workpiece, and there is no need for back gouging during the welding process, On the premise of ensuring the welding quality, the welding efficiency is improved to the greatest extent.
With the continuous production of high neck butt welding flange, the welding method and welding technology are also constantly improved. According to the specifications and dimensions of the actual workpiece, the welding schemes such as manual gas shielded welding, full-automatic swing gas shielded welding or submerged arc welding can be reasonably selected.
