13 Feb,2025
Effectively prevent and control welding defects
Overview of Welding Defect Diversity and Hazardous Products (Other Defects)
①Porosity: a cavity formed by incomplete gas escape during the welding process, affecting the strength and sealing of the joint
② Slag inclusion: unmelted solid impurities in the welding pool, which reduces the mechanical properties and corrosion resistance of the welded joint. ③ Incomplete fusion and incomplete penetration: incomplete fusion between the weld and the base metal or the weld layer, seriously affecting the strength and toughness of the welded joint.
Prevention and control measures for welding defects
① Failure analysis: Conduct detailed failure analysis of welding defects to determine the type of defect and its cause, providing a theoretical basis for subsequent prevention and control measures.
② Multi-physical field data acquisition: Use advanced detection technology and numerical simulation methods to monitor changes in physical fields such as temperature field, stress field, and deformation field during the welding process in real time, providing a basis for optimizing the welding process and taking intervention measures.
③Process optimization: Select appropriate welding methods, welding parameters and welding sequences according to different welding materials and structural characteristics.
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