Apparatus for centrifugal casting under vacuum
OwnerManfred Renkelinventor
Life of this patent
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Abstract
An apparatus for centrifugal casting under vacuum includes a rotor having a shaft extending in an essentially vertical direction and being rotatable around an axis defined by the shaft. The rotor has at least one mold, at least one crucible, and a gas-tight housing in which the mold and the crucible are accommodated. The apparatus also includes a vacuum source to create a vacuum in the housing, a heating device that melts a metal, a drive device that drives the shaft in order to rotate the rotor, and an auxiliary acceleration device configured to generate a force to further rotate the rotor to overcome a moment of inertia of the rotor. The auxiliary acceleration device includes a jet propulsion and/or at least one pushing actuator accelerating the resting rotor.
Claims15
An apparatus for centrifugal casting under vacuum, said apparatus comprising:
- a rotor having a shaft extending in an essentially vertical direction therefrom and being rotatable around an axis defined by the shaft,
- the rotor having at least one mold releaseably fixed thereto at a first radial distance from the axis, and at least one crucible associated with the mold so that an outlet opening of the crucible is arranged opposite an inlet opening of the mold, and
- the rotor further comprising a gas-tight housing in which the mold and the crucible are accommodated,
- a vacuum source to create a vacuum in the housing,
- a heating device that melts a metal, the metal being taken up in the gas-tight housing within in the crucible,
- a drive device that drives the shaft in order to rotate the rotor, and
- an auxiliary acceleration device configured to generate a force to initiate the rotation of the rotor to overcome a moment of inertia of the rotor, the auxiliary acceleration device comprising jet propulsion and/or at least one pushing actuator accelerating the resting rotor.
Dependencies are inferred from the claim text.