| 摘要 |
PROBLEM TO BE SOLVED: To provide a process and an apparatus for the casting of molten metal in an open ended mold cavity by limiting the peripheral confinement of the molten metal in the cavity during the casting of it into an end product. SOLUTION: When a body of startup material (70) has been interposed in the cavity (4) between the starter block (60) and a first cross-sectional plane (72) of the cavity transverse to the axis (12) thereof, and the starter block has commenced reciprocating along the axis, layers (76) of molten metal are successively superimposed on the body of startup material adjacently to the first cross-sectional plane of the cavity, and the layers promptly distend relatively peripherally outwardly from the axis under the inherent splaying forces therein. The invention confines the relatively peripheral outward distention of layers with a casting surface (62) which is peripherally outwardly flared about the axis of the cavity, so that the thermal contraction forces arising in each layer can counterbalance the spraying forces. COPYRIGHT: (C)2010,JPO&INPIT
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