DIRECT CHILL CASTING MOULD WITH CONTROLLABLE IMPRINGEMENT

摘要

An apparatus and process are described for continuously casting molten metal. The apparatus includes (a) an open-ended direct chill casting mould comprising a mould plate (10) having an inner axially extending wall (11) or walls defining a mould cavity, (b) coolant delivery, aperture (16) or apertures adjacent the mould cavity adapted to discharge a stream or streams of coolant inwardly in the direction of metal movement to impinge on an ingot (36) being formed, and (c) deflector means (38) for deflecting the coolant stream or streams in a variable direction dependent on the local shrinkage conditions of the ingot (36) being formed such that the coolant impinges upon the ingot at a constant distance below the mould plate around the periphery of the ingot (36) and preferably at a constant relative impingement angle. The deflector means (38) is preferably a movable baffle (38) having a deflector face (53) contoured to impart the desired deflection pattern to the coolant stream.