Research Status of Quality Control of Welded Joints for High Strength Hull Steel

Abstract

During the process of the high strength steel welding ,the main factors, which influence the properties of the welded joint of steel, are the steel itself, the welding method ,the welding process and the welding filler material. This paper analyzes the welding joint of the weld metal zone, heat affected zone and the base metal zone, which in the three areas of high strength steel welding joint of hull existing key problems. It also discusses about improving weld plastic, toughness and strength control technology. And it introduced the computer simulation of welding zone distribution of temperature field and weld metal structure solidification process. We make good use of Thus, it effectively improve the quality of welding joint and its performance. The developing trend of high strength steel welding is to combine with computer simulation in the future.