Long side tip surface forming apparatus of unequal edge Yamagata steel, long side end face forming method and manufacturing method, and hot finish rolling mill

摘要

Problem to be solved: to provide a technique capable of improving the direct angle of the leading edge of the long side of an unequal edge steel.It has a forming roll (11) arranged on the side of hot finish rolling mill for unequal edge steel.The forming roll (11) isHaving a peripheral surface (11a) which abuts against the leading end face (9a) of the long side (9) of the unequal side Yamagata steel formed by the finish rolling, and presses the tip end (9a)The peripheral surface (11a) abutting on the distal end surface (9a) isFor the leading end faceIt has an inclined surface shape capable of applying a reaction force to the longitudinal direction of the long side (9) of the unequal edge steel.The front end surface (9a) of the long side (9) is press molded in its peripheral surface.