Patent ID: 7093646

Claim:
A twin roll casting machine comprising: a pair of chilled rolls; a pair of pinch rolls for pinching a strip continuously cast by said chilled rolls and feeding the same to a succeeding process; an enclosure with lateral side walls confronting widthwise edges of the strip and enclosing the strip in a range from the chilled rolls to the pinch rolls; chilled-roll sealing members between the enclosure and outer peripheries of said paired chilled rolls; pinch-roll sealing members between the enclosure and outer peripheries of said paired pinch rolls; a first swing wall arranged in the enclosure adjacent to a downstream side of the chilled rolls and movable toward and away from a surface of the strip; a first sealing roll rotatably supported by a tip end of said first swing wall in parallel with the chilled rolls; a second swing wall arranged in the enclosure adjacent to a downstream side of the chilled rolls and movable toward and away from the other surface of the strip; a second sealing roll rotatably supported by a tip end of said second swing wall in parallel with the chilled rolls; swing-wall sealing members sealingly arranged between a wall of the enclosure and peripheral edges of the first and second swing walls; and gas supply means for supplying inert gas into the enclosure.