大型立式钢制储罐是石油化工行业非常重要的储运设备,越来越多地用于原油、成品油等储运工程。焊接是储罐建造的主要工序,对储罐的施工质量具有决定性意义。钢制储罐焊接方法较多,不管采取哪种焊接方法,在焊接过程中存在的主要问题是焊接变形,特别是储罐壁板、底板焊缝,施工中时常会产生较大的变形。 Large vertical steel storage tank is the petrochemical industry is very important storage and transportation equipment, more and more for crude oil, oil and other storage and transportation projects. Welding is the main process of tank construction, which is of decisive significance to the construction quality of the tank. There are many welding methods of steel storage tanks. No matter which welding method is adopted, the main problem in the welding process is welding deformation, especially the welding of the tank wall and bottom plate of the storage tank. In the construction, large deformation often occurs.