COOLING PAD OF BELT TYPE CONTINUOUS CASTING MACHINE

摘要

PURPOSE:To obtain a slab stock having a flat surface shape by forming the discharge side of the water feed parts formed to a cooling pad into the shape expanding outward thereby decreasing the pressure loss in the water feed parts and executing cooling in a stable state. CONSTITUTION:Respectively plural pieces of water feed holes 12 and discharge holes 13 are formed approximately at equal intervals to the cooling pad 5 in the transverse direction of a belt 4. Cooling water is supplied from the same header 11 to an array of the holes 12 lines up in the transverse direction. The cooling water outlet side of the holes 12 is chamfered 12a and is so formed that the hole diameter increases successively toward the advancing direction of the belt 4. On the other hand, the discharge inlet side of the holes 13 is formed with an edge so that the diameter of the holes 13 decreases successively toward the advancing direction of the belt 4. The pressure loss in the water feed part is thus decreased and the driving power is correspondingly decreased. The cooling in the stable state against the fluctuation of load is made possible in the water discharge part.