The manufacturing device of the welded section steel and manufacturing method of the welded section steel

摘要

Even if an asymmetric welded steel having a large amount of thermal deformation occurring in each part of the flange member after welding can be easily calibrated to the original cross-sectional shape. And a calibrating device 100 for calibrating the shape of the flange material thermally deformed by heat input at the time of welding after the ends of the web material 3 are brought into contact with the flange materials 1, do. The calibrating device comprises a flange calibrating roller (24) arranged at each end of the flange member for calibrating the thermal deformation from the end of the flange member to the part coming back from the web, by pressing the web material side of the end of the flange material, And a web material support roller 44, 45. The flange re-calibrating rollers disposed at the ends of the flange member correct the thermal deformation with independent pressing force at each end of the flange member.;