REVERSE ROLL COLD ROLLING METHOD OF TWIP STEEL

摘要

The present invention relates to a method for cold rolling a reverse roll of a TWIP steel and, to a method for manufacturing a thin plate type high strength TWIP cold rolling steel plate with excellent tensile strength and elongation by using reverse rolling among cold rolling technologies. According to the present invention, the method for cold rolling a reverse roll of a TWIP steel comprises: a first step for mounting a pickled TWIP steel coil on a left recoiler by a down coiler or a pay-off reel; a second step for forming tension of 50-300 KN and winding in the top of the TWIP steel coil mounted on the left recoiler; a third step for starting to roll the TWIP steel by using a rolling roll having the width of 300-1,500 mm; and a forth step for completing a one-time rolling process by winding the rolled TWIP steel in a right recoiler in the form of a coil.