Patent ID: 7398817

Claim:
A twin roll caster comprising an apparatus for confining impurities of a molten metal fed by means of a discharger and contained into an area ( 3 ) of a strip continuous casting mould delimited by the side surfaces of two counter-rotating casting rolls with horizontal axis ( 1 a , 1 b ) and by two containment side plates ( 2 a , 2 b ) positioned in contact with the rolls' bases, said apparatus comprising: a discharger ( 4 ) having at least two first series of holes ( 4 a , 4 a ′) for the molten metal supply, each series being formed by at least a pair of holes respectively directed towards one of the opposed side surfaces of the two rolls ( 1 a , 1 b ) and at least a second pair of holes ( 4 b , 4 b ′) for the molten metal supply, each hole of such second pair being directed towards the side plate nearest thereto, and said at least one second pair of holes ( 4 b , 4 b ′) being positioned at a greater depth with respect to said two first series of holes ( 4 a , 4 a ′); and at least two pairs of barriers ( 5 ) present in one part of the area ( 3 ) between the end of the nozzle and the containment side plates ( 2 a , 2 b ), forming a Y-shaped angle between the cross-sections of said barriers, lying on a same horizontal plane.