| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for correcting perpendicularity of the flange of a wide flange shape by which the defective perpendicularity of the flange is accurately corrected over the entire length of of the wide flange shape. SOLUTION: By providing a perpendicularity/flange folding measuring means 17 on the inlet side of a perpendicularity correcting machine 16 with which the perpendicularity of the flange of the wide flange shape is corrected by pressing the outside of the right and the left flanges 11a with vertical rolls 14, 15 while restraining the up and down sides of the web 11b by horizontal rolls 12, 13 and measuring not only the perpendicularity but the flange folding by using the means, the tilting of the vertical rolls is adjusted on the basis of the result of these measurement. COPYRIGHT: (C)2007,JPO&INPIT
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