The spherical tank is extensively used in many industry

such as soil

chemical

energy

environmental protection

light industry

pharmacy and foodstuff. Welding between support column and asymmetric equatorial plate will cause welding distortion. Because of such welding distortion

the curvature of spherical shell is hard to reach the requirements of specification. The anti-distortion fixture will solve the difficulty for spherical shell curvature which is out of limit. The article shows the structure and working principle of anti-distortion fixture

apply and popularize value.