US3633654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pouring nozzle for continuous-casting machine
Assignee: United States Steel Corp
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Filing: 1970-06-30
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Granted: 1972-01-11
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Expires: 1990-06-30
Abstract
Abstract A method and nozzle construction for pouring liquid metal into a receiver, the width of which is several times greater than the thickness, for example, a continuous slab-casting mold. The metal discharges from a vessel supported above the receiver as a fanshaped stream broadened in the direction of the width of the receiver. As applied to casting slabs, the invention avoids localized high-temperature areas in the skin of a partially solidified casting as it emerges from the mold. The method and nozzle may also be used to advantage for pouring metal between the belts of a belt-type continuous-casting machine.
Inventors
- 👤 Paul M Auman
- 👤 James B Wagstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:31
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0637; B22D11/064; B22D11/0642; B22D11/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A nozzle comprising a cup-shaped refractory body having a circular pouring opening in its bottom wall, the upper surface of the bottom wall having a pair of relatively high areas at diametrically opposite sides of said opening and a pair of relatively low areas at diametrically opposite sides of said opening between said high areas, the under surface of the Bottom wall having a recess elongated beneath said high areas, whereby liquid discharging through said opening forms a fan-shaped stream broadened in the direction of elongation of said recess.
Claim 2
Dependent Claim
89 words
A nozzle comprising a cup-shaped refractory body having a circular pouring opening in its bottom wall, the upper surface of the bottom wall having a pair of relatively high areas at diametrically opposite sides of said opening and a pair of relatively low areas at diametrically opposite sides of said opening between said high areas, the under surface of the Bottom wall having a recess elongated beneath said high areas, whereby liquid discharging through said opening forms a fan-shaped stream broadened in the direction of elongation of said recess.
Claim 3
Dependent Claim
14 words
A bottom pour vessel equipped with a nozzle constructed as defined in claim 1.
Claim 4
Dependent Claim
19 words
A vessel equipped with a nozzle constructed as defined in claim 1 located in a lower transverse edge thereof.
Claim 5
Dependent Claim
96 words
In combination, a continuous slab-casting mold having a width substantially greater than its thickness, a tundish supported over said mold, said tundish having in its bottom wall a nozzle constructed as defined in claim 1 oriented so that the fan-shaped stream discharging therefrom is symmetrical with respect to planes which bisect the mold in the direction of its width and its thickness and broadened in the direction of the first-named plane to distribute steel across the mold width, whereby localized high-temperature areas are avoided in the skin of a partially solidified casting emerging from said mold.
Claim 6
Dependent Claim
79 words
In combination, a belt-type continuous-casting machine which includes a pair of spaced-apart belts, opposed faces of which travel in a downward direction, and a tiltable tundish for pouring liquid metal into the space between said belts, said tundish having a nozzle constructed as defined in claim 1 in its lower edge adjacent the space between belts for discharging a fan-shaped stream of metal into said space, said stream being broadened in the direction of the width of the belts.
References Cited (Backward Citations)
US1944611A
Cited
US2826793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |