Dispensing – Molten metal dispensing – With subjacent flow guide
Patent
1986-02-28
1988-04-19
Rolla, Joseph J.
Dispensing
Molten metal dispensing
With subjacent flow guide
222512, 266285, 403 30, 285905, 285406, B22D 3500, C21B 706
Patent
active
047383801
ABSTRACT:
A self-adjusting refractory joint which finds principle utility in teeming valves in which a pair of overlapping collars are provided on a plate and on the pour tube, the collar on the plate extending downwardly in surrounding relationship to the teeming orifice, and the collar on the pour tube extending from its upper portion in overlapping interfering relationship with the collar on the plate. Ideally the tangent of the angle (theta) of undercut between the respective collars where they overlap is the ratio of the height of the collar of the inner member divided by the radius of the outside diameter (O.D.). In the precast environment, an independent preformed retainer is used to define the extension from the bottom of the plate. In both instances a holder surrounds the extension from the bottom of the plate to essentially the bottom of the plate collar forming member. When the angle is 1/2 theta or any other ratio the angles can be generated graphically by extending an imaginary line from the outside of the tube collar to the teeming opening center.
REFERENCES:
patent: 3386723 (1968-06-01), Miller
patent: 3549061 (1970-12-01), Piene
patent: 4063668 (1977-12-01), Shapland et al.
patent: 4299018 (1981-11-01), Bickerstaff et al.
patent: 4576218 (1986-03-01), Artz et al.
Dominik Jack E.
Flo-Con Systems, Inc.
Huson Gregory L.
Rolla Joseph J.
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