How to avoid crack when deopsite weld for valve sealing surface?
Many factory Welding Worker face potential crack risk when deposite weld valve seat and disc, especially for those experience less fresh welding worker.This phenomen is more widely exsist for complicated workpieces when using easy-crack electrode.
Surfacing in the most commonly encountered problem is cracking, to prevent cracking of the main methods are:
1, preheat, interpass temperature control, slow cooling after welding.
2, stress relief heat treatment after welding. Continue reading “How to avoid crack when deopsite weld for valve sealing surface?”