Regulating device for regulating the flow of molten metal from a

Details Regulating device for regulating the flow of molten metal from a Regulating device for regulating the flow of molten metal from a

1990-04-11

1993-06-29

Kastler, Scott

Dispensing

Molten metal dispensing

Flow controllers or assists

222597, 222594, B22D 4150

Patent

active

052231577

ABSTRACT:
A regulating device for regulating the flow of molten metal from metallurgical vessel includes an inner tubular part which is fixed to the metallurgical vessel and defines at least one through-hole, and a movable outer tubular part rotatably and/or slidably mounted to the metallurgical vessel and extending around the tubular inner part. The tubular outer part terminates at a bottom edge constituted by a contiguous land extending around the tubular inner part. The tubular outer part can be slid and/or rotated between open and closed positions at which the through-hole of the tubular inner part is opened and closed, respectively. To prevent plugs of molten metal from hardening in the at least one through-hole of the tubular inner part, the bottom edge of the tubular outer part is designed so that a portion of the land thereof passes across the at least one through-hole when the tubular outer part is moved between the open and closed position. More specifically, at the closed position, a portion of the land constituting the bottom edge is located to one side of the through-hole with respect to the longitudinal axis of the tubular inner part while, at the open position a portion of the land constituting the bottom edge is located to the other side of the through-hole with respect to the longitudinal axis of the tubular inner part.

REFERENCES:
patent: 3651998 (1972-03-01), Rocher
patent: 4368834 (1983-01-01), Daussan et al.
patent: 4747580 (1988-05-01), Tinnes et al.
patent: 4905876 (1990-03-01), Gimpera

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