Patent ID: 7975752
Filing Date: 2011-07-12
Classification: B22D

Abstract:
1. Apparatus for casting a composite metal ingot, comprising: an open-ended generally rectangular mold cavity having an entry end portion, a discharge end opening, and a movable bottom block adapted to fit within the discharge end opening and to move axially of the mold during casting, said mold cavity having opposed side walls and opposed end walls adapted to cast a rectangular composite ingot having opposed faces and opposed ends; a cooled divider wall that remains within an entry end portion of said mold cavity and extends across the cavity towards opposite end walls thereof, thereby dividing at least the entry end portion of the mold cavity into first and second feed chambers; a first molten metal feed arrangement for feeding molten metal for a first layer of said composite ingot into one of said feed chambers; a second molten metal feed arrangement for feeding molten metal for a second layer of said composite ingot into said second feed chamber; and which includes end supports for said cooled divider wall, said support being movable, thereby allowing said divider wall to be moved as a whole through moving said support at times as casting proceeds relative to said mold cavity in directions towards or away from one of said side walls of the mold cavity.