The continuous casting machine for throb and it is thin throb which uses that continuous casting manner

摘要

PURPOSE: To provide a continuous casting method capable of casting a thin slab thin in the thickness of the final cast slab while securing the thickness of refractory in an immersion nozzle and obtaining good quality of the cast slab. ;CONSTITUTION: Rectangular copper plates 11 of a mold 1 are formed to a recessed shape recessed at the center part to both end parts and guide rolls in guide segment zone from just below the mold to on the way of a pass line are a concave roll 21 corresponding to the drum-like cast slab shape at the outlet side of the mold and the guide rolls in the light rolling reduction segment zone from on the way of the pass line to a position exceeding the solidified completing point of the cast slab are a straight roll 31. The cast slab cast in a drum shape in the cross section thereof by the mold is guided to draw with the concave roll 21 in the guide segment zone started from just below the mold without executing the rolling reduction and successively, the rolling reduction is gradually executed to the cast slab having the drum type in cross section with the straight rolls 31 in the light rolling reduction segment zone to finish the cast slab to the rectangular shape in cross section.;COPYRIGHT: (C)1994,JPO&Japio