Patent ID: 7100674

Claim:
A method for drawing a strip cast by means of a twin roll strip casting apparatus, comprising the steps of: maintaining a roll gap so that a leader strip having a length l 0 disposed above a roll nip does not fall between rolls; initiating the casting by disengaging a stopper from a tundish hole of a tundish so that molten metal is poured into a space between the rolls, and by rotating the rolls at an initial casting speed v 0 for each of the rolls when the position of the stopper is higher than the position where the molten metal (rod_offset) begins to pour from the tundish hole; accelerating the casting speed when a roll repulsive force (rolling force) is detected as reaching a load threshold indicating that the molten metal is solidified to the leader strip and passing between the rolls; and maintaining the casting speed when the casting speed reaches a target value (normal casting speed).