Dispensing – Molten metal dispensing – Flow controllers or assists
Patent
1990-10-17
1992-01-14
Kastler, S.
Dispensing
Molten metal dispensing
Flow controllers or assists
222602, 222591, B22D 4116
Patent
active
050802658
ABSTRACT:
A closing and/or regulating apparatus for tapping molten metal from the interior or a metallurgical vessel includes a vertical inner pipe having extending through a wall thereof at least one opening for the passage of molten metal. An outer pipe is fitted over the inner pipe and has extending through a wall thereof at least one opening. One of the pipes is to be mounted stationarily with respect to a metallurgical vessel, and the other of the pipes is displaceable relative to such one pipe in a vertical axial direction through a working stroke at which the openings of the pipes may be brought into alignment to thereby discharge molten metal downwardly through the interior of the inner pipe. The dimension of the opening in the stationary pipe in such direction is greater than the dimension of the opening in the displaceable pipe in such direction. The circumferential dimension of the opening in the displaceable pipe is substantially the same as the circumferential dimension of a lower portion of the opening in the stationary pipe.
REFERENCES:
patent: 3651998 (1972-03-01), Rocher
patent: 4949886 (1990-08-01), Luhrsen et al.
patent: 4966314 (1990-10-01), Bruckner et al.
Hintzen Ullrich
Luhrsen Ernst
Schuler Andreas
Didier-Werke AG
Kastler S.
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