| 摘要 |
<p>The invention concerns an apparatus for centrifugal casting under vacuum, said apparatus comprising: a rotor (1) having a shaft (2) extending in an essentially vertical direction therefrom and being rotatable around an axis (A) defined by the shaft (2), the rotor (1) having at least one fixing means for releaseably fixing at least one mold (9) in a first radial distance from the axis (A), and a means for accommodating at least one crucible (6, 7, 23) being associated with the mold (9) so that an outlet opening (8) of the crucible (7, 23) is arranged opposite an inlet opening of the mold (9), the rotor (1) further comprising a gas-tight housing (1, 10) in which the mold (9) and the crucible (7, 23) are accommodated, a vacuum source to create a vacuum in the housing (1, 10), a heating device for melting a metal, the metal being taken up in the gas-tight housing (1, 10) within in the crucible (7, 23), a drive device (13) for driving the shaft (2) in order to rotate the rotor (1), and an auxiliary acceleration device (14, 16, 25, 26, 27) for generating a force to overcome a moment of inertia of the rotor (1).</p> |
