Weld neck flange problem
Today, a friend consulted: after welding neck flange welding, found that the internal welding slag and Burr can be cleaned? Pipe and flange material is 316L, welding all used argon arc welding, after welding not only burr exists, there is no penetration of the situation, why so? Is the welder level too low?
Flange: Take over the weld neck flange, the general diameter of the pipe, can be welded inside the pipe Open the groove, first in the inside of the welding and then clear the root welding, of course, there are welding slag and burr angle machine can also be inside to clean up. If it is smaller pipe and carbon steel flange can not go to the internal cleaning, generally all the way out of the groove, with argon arc welding bottom, cover or manual arc welding cover surface. After welding not only burr exists, there is no penetration of the situation, such a situation is likely to be your welder’s level is limited, or the welding wire has a problem (this situation should be very small) we have to weld the day this never happened.