| 摘要 |
PROBLEM TO BE SOLVED: To improve productivity without stopping a hot rolling line and to improve the labor environment of a worker by cutting a long size material while running it with a running/cutting machine arranged at the upstream side of a roller straightening machine, producing a prescribed length shape steel and straightening the deformation of a cut part of the shape steel with a roller straightening machine. SOLUTION: After a long size material 10a after hot rolling is cooled at a cooling floor 11, the tip of the long size material 10a is passed into the cutting die of a running/cutting machine 12, a cutting edge table 19 is moved to a downstream side in synchronizing to the tip of the long size material 10a. At the time of moving to a cutting section S, a moving cutting edge is moved up/down for a fixed cutting edge, the long size material 10a is cut. The deformations of a web and a flange of the cross sectional face of a wide flange shape steel 10 generated at running/cutting is finally corrected along with bending straightening. Thus, even when the deformation of the cutting face of the wide flange shape steel 10 at running/cutting is generated to some degree, by correcting it with the roller straightening machine 13, the wide flange shape steel 10 is efficiently produced without making dimension/shape severe.
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