How to deal with welding cracks in important welded joints?

EMT Hydraulics was established in 2005. It is a group company that mainly integrates R&D, production and sales of compression fittings, welding joints, transition joints, hose joints, pipe clamps, flanges, quick joints and ball valves. There are 4 branches around the world: Welding cracks are important in the treatment of welded joints: Welding cracks are the most important defects in welding and the most concealed. When cracks are found in the inspection, they must be polished and removed, and then PT inspection is carried out. No problem After that, polish the surface thoroughly. If the filler metal is removed by thermal cutting, an angle grinder must be used to polish the metal on both sides of the groove by 5-10mm after removal. Therefore, it is recommended to use a mechanical method. Fill metal for removal.