BigPatents India

Twin roller caster for casting metal strip comprises pair of parallel casting rolls (16) forming nip to receive molten metal from elongate metal delivery nozzle (19) formed in two pieces 19(A) supported in end to end relationship with a gap (50) between them. A pair of casting pool confinement plates (56) are thrust against the ends of rolls (16) by thrusters (83) mounted with the side plates on carriages (101) forming part of moveable structures (150) which are connected to the outer ends of nozzle pieces (19A) by pins (151) and which can be moved by operation of screw jacks (152) can be operated so as to move the nozzle segments (19A) inwardly to match inward advance of the side plates as they wear.