seen in framstellning of extremely fine-grained metallplat or tape in a gjutmaskin of valstyp

摘要

1537490 Continuous casting; rolling HUNTER ENG CO Inc 12 Dec 1975 [23 Dec 1974] 50946/75 Headings B3F and B3M Molten metal such as Al alloy or Zn, delivered by a pouring tip 14 into a space between two parallel cooled rolls 10, 12, each of a radius not less than 18 inches (91À44 cm.), and driven synchronously in opposite directions, e.g. at 0À6 r.p.m., solidifies, at 26, between the exit end 22 of the tip 14 and the nip of the rolls so that the solidified metal is subjected to a hotroll reduction in the range of 33%-50%. The roll nip is 0À25 inch (6À35 mm.) and the rolls are cooled by internal liquid circulation; they may have copper shells.