| 摘要 |
A method for the casting of a composite metal ingot comprising at least two layers formed of different alloys, which comprises providing an open ended annular mould having a feed end and an exit end wherein molten metal is added at the feed end and a solidified ingot is extracted from the exit end, and divider walls for dividing the feed end into at least two separate feed chambers, said divider walls terminating above said exit end of the mould, where each feed chamber is adjacent at least one other feed chamber, wherein for each pair of adjacent feed chambers a first stream of a first alloy is fed to one of the pair of feed chambers to form a pool of metal in the first chamber and a second stream of a second alloy is fed through the second of the pair of feed chambers to form a pool of metal in the second chamber, the pools of meal each having an upper surface and wherein the divider walls for dividing the feed end are flexible and the shape of the divider walls is adjusted during the casting process, whereby the two alloy streams are joined as two layers and cooling the joined alloy layers to form a composite ingot having a uniform interface throughout. |
