| 摘要 |
A device for casting precision castings, the said device incorporating a chamber (20), a mould (12), and equipment (15) for generating a pressure difference between the interior and exterior of the mould. The mould is situated completely inside the chamber, excluding a pouring hole (34) on the upper surface of the mould, through which hole the metal (18) to be cast is introduced into the mould. Between the upper surface of the mould and the cover (22) of the chamber (20) is placed a seal (30), such as a sharp-edged ring gasket, penetrating into the upper surface of the mould. The mould seal and the seal (24) of the chamber cover can be sealed simultaneously by the same movement that closes the chamber cover.
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