Faqs

NON-SUBMERGENCE – CAUSES AND REMEDIES WHAT IS NON-SUBMERGENCE?
Non-submerged welding is a serious defect in welded connection that may cause cracks.
Non-submerged welding occurs in an angle of a weld, a welding edge or in middle of weld layers. Welding structure is mostly destroyed by non-submerged welding.
Cause
Remedy
·        Welding edge provided is inappropriate. Its beveling angle is too small
·        Welding current is small or welding speed is so fast
·        The angle of welding rod is improper and the way of placing electrode is incorrect.
·        Length of arc pole is excessive
·        Make welded connection clean before welding. Increase beveling angle and weld clearance.
·        Increase welding current and lower welding speed…