METHOD FOR ROLLING WIDE FLANGE SHAPE HAVING NARROW FLANGE WIDTH

摘要

PROBLEM TO BE SOLVED: To roll a wide flange shape having narrow flange width the flange width of which is 1/4 to 1/10 of the web height at high efficiency. SOLUTION: A product having target dimensions is obtained by reducing the web and the flanges with a universal mill and the flange width with an edger mill after making a slab of a base stock having a rectangular section into a rough shape slab by rolling by one approximately H-shaped caliber. When making the rough shape slab by rolling by one approximately H-shaped caliber, rolling is carried out without rotating the slab of the base stock. COPYRIGHT: (C)2004,JPO