METHOD FOR CONTROLLING STRIP THICKNESS IN TWIN-ROLL CASTER

PROBLEM TO BE SOLVED: To always fix the strip thickness in a twin-roll caster. SOLUTION: In the side direction drawing type twin roll caster for producing the strip 5 by arranging one pair of mold rolls 2, 3 at the upper and the lower sides in the downstream of a tapping hole of a tundish 1 and supplying molten steel 4 from this tapping hole into the mold rolls 2, 3, the mold roll 2 at the upper side is supported, with a swing frame tiltable by centering the mold roll shaft at the lower side. In the case the thickness of the strip 5 becomes thinner than a prescribed thickness, the mold roll 2 at the upper side is tilted to the tundish 1 side and the contacting length of the solidified shell 8 of' the outer periphery of the roll 2 is made to large so as to make to coincide with the solidified shell 9 of the mold roll 3 at the lower side and the thickness of the strip 5 is made to constant.