Preparation Work Before Installation And Welding Of Steel Structure - Knowledge

The test steel includes Q345GJC-Z15 (wall thickness 70mm),Q345GJC-Z15 (wall thickness 40mm),Q345C (flange thickness 28mm).Welding),T-shaped vertical fillet welding.The bevel form

The test steel includes Q345GJC-Z15 (wall thickness 70mm),Q345GJC-Z15 (wall thickness 40mm),Q345C (flange thickness 28mm).Welding),T-shaped vertical fillet welding.The bevel form and size are according to the design requirements.After the steel structure was welded,its appearance and ultrasonic inspection were qualified and samples were taken for mechanical and physical tests.

Test results The tensile strength of the joint reached the standard value of the tensile strength of the base material,and the joint was bent at 180 without cracks.The welding materials and welding equipment technical conditions used should comply with national standards and have excellent performance.The devices for slag removal,gouging,welding rod drying and heat preservation should be complete and effective.