Patent ID: 6125917
Filing Date: 2000-10-03
Classification: B22D

Abstract:
Apparatus for casting metal strip including a pair of parallel casting rolls forming a nip between them, an elongate metal delivery nozzle formed in two discrete elongate pieces disposed end to end, nozzle support means supporting the nozzle pieces such that the nozzle extends above and along the nip between the casting rolls for delivery of molten metal into the nip whereby to form a casting pool of molten metal supported above the nip, and a pair of pool confinement closures at the ends of the nip, wherein the two outer ends of the nozzle are formed with metal outlet passages to direct molten metal in streams directed towards the pool confining end closures, and wherein outer end parts of the nozzle pieces are engaged by the nozzle support means such that there is a gap between the nozzle pieces and those parts of the nozzle pieces disposed inwardly of said support means are free to expand longitudinally inwardly to accommodate thermal expansion of the nozzle pieces during casting, and wherein the engagement of the nozzle support means and the outer end parts limits outward longitudinal thermal expansion of the nozzle pieces.