Dispensing – Molten metal dispensing – Flow controllers or assists
Patent
1992-09-14
1994-02-15
Kastler, Scott
Dispensing
Molten metal dispensing
Flow controllers or assists
266239, B22D 3906
Patent
active
052859347
ABSTRACT:
An automatic molten metal supplying device capable of supplying the molten metal within a short period of time while maintaining accuracy in a supply amount and preventing dripping of the molten metal from a ladle and temperature decrease of the molten metal during its transferring state even if the transferred molten metal is of a small volume. A molten metal intake/discharge port is formed at a bottom portion of a ladle, and an atmosphere communication/blockage unit is provided which selectively communicates an internal space of the ladle with an atmosphere. After the molten metal is introduced into the ladle through the intake/discharge port, the space is shut off from the atmosphere. A cross-sectional area of the intake/discharge port is in a range of from 28 to 80 mm.sup.2. The lower limit of the cross-sectional area of the intake/discharge port is sufficient to allow the molten metal to be flowed into the ladle, and the upper limit thereof is sufficient to prevent the molten metal in the ladle from dripping therefrom. Thus, a small amount of the molten metal can be rapidly and accurately casted.
REFERENCES:
patent: 3050794 (1962-08-01), Holz
patent: 3128912 (1964-04-01), Cash
patent: 3191247 (1965-06-01), Holz
patent: 3499580 (1970-03-01), Smith
Ishida Hitoshi
Yamauchi Noriyoshi
Kastler Scott
Ryobi Ltd.
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