Patent ID: 6533023
Filing Date: 2003-03-18
Classification: B21B,B22D

Abstract:
In an apparatus for continuously casting metal strip comprising a pair of casting rolls fanning a nip between them, a metal delivery means for delivery of molten metal into the nip between the casting rolls to form a casting pool of molten metal supported an the casting roll surfaces immediately above the nip, and roll drive means to drive the casting rolls in counter rotational directions to produce a solidified strip of metal delivered downwardly from the nip, and a pinch roll assembly being disposed generally to one side of the caster to receive strip from the cast and feed it away from the caster, the improvement of a pinch roll assembly having pinch rolls each comprised of:a pair of end support shafts; a cylindrical tube of copper or copper alloy extending between the support shafts to provide an external peripheral roll surface said external peripheral surface having a diameter of at least 300 mm and yet capable off firmly gripping the strip to feed the strip forward; and cooling water passages formed internally of the pinch roll to cool the cylindrical tube by flow of cooling water through the passages.