| 摘要 |
PROBLEM TO BE SOLVED: To shape the weld bead while improving the H-shaped and the dimension of a welded H-shaped steel with good accuracy, and dealing with the relative deformation of the H-shaped steel by thermal deformation or the like. SOLUTION: A weld bead shaping device comprises shaping rolls 41 and 71 (51 and 81) which are pressed against the weld bead formed on a welded part to shape the weld bead when manufacturing the H-shaped steel 300 by welding a part of surfaces of flanges 301 and 302 to a web 303, and support rolls 91 and 101 which are disposed on back sides of the flanges 301 and 302 corresponding to the pressing position of the shaping rolls 41 and 71 (51 and 81) to support the flanges 301 and 302. Changes in the passing position of the H-shaped steel 300 are followed by a structure to support the shaping rolls 41 and 71 (51 and 81) and the support rolls 91 and 101 so as to be freely rocked. COPYRIGHT: (C)2003,JPO
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