| 摘要 |
PROBLEM TO BE SOLVED: To provide a facility or the like of an wide flange shape steel having the high cooling uniformity in the width direction of a flange during the accelerated cooling of the wide flange shape steel. SOLUTION: In a cooling facility 20 of a wide flange shape steel 10 for cooling an outer surface of a flange 11 by jetting a cooling water from a plurality of jet holes on the outer surface of the flange 11 of the wide flange shape steel 10 after the hot rolling, a nozzle is provided, which feeds cooling water (a) and (b) on the entire outer surface of the flange 11 of the wide flange shape steel 10 while the cooling water is not interfered directly with each other, and the cooling water (a) and (b) cooling the outer surface of the flange 11 do not cool a web 12, and the web 12 is air-cooled. A partition for changing the jetting range according to the flange width y of the wide flange shape steel 10 is provided in the cooling facility 20. Further, a nozzle for jetting a plurality of parallel laminar water flow groups is provided so that the jetting direction is parallel. In addition, the jetting velocity of the fluid to be jetted according to the web height x is controlled so that the web 12 is air-cooled. COPYRIGHT: (C)2008,JPO&INPIT |
