| 摘要 |
An apparatus for casting molten metal from a casting container having an outlet hole, comprises a batching container which is connected at the bottom of the casting container so that the outlet hole of the casting container is off-set from a vertical axis of the batching container towards the periphery thereof; the batching container is provided with means to generate a rotating electromagnetic field in a peripheral direction thereof to impart rotation to the metal in the batching container and to develop under the effect of centrifugal forces a counterpressure to the thrust of the metal coming into the batching container; casting of molten metal is effected from the central portion of the batching container, variation of the induction of the rotating electromagnetic field causing a variation of the rotation speed of the metal and, together with the latter, of the counterpressure to the thrust of the metal being supplied to said batching container, said counterpressure determining the batching of metal. The apparatus is characterized in that the batching container provided has an upper cover to close the container and form a chamber, the cover being provided with an entry aperture substantially near the periphery of the batching container and communicating with the outlet hole of a casting container; said cover of the batching container is also provided with a conduit for the exit of molten metal whose inlet opening is arranged in the central portion of the cover, while surrounding the batching container there is provided a means to generate a rotating magnetic field.
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