US3559720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous casting apparatus having a two part separable mold
Assignee: SMS Concast Inc
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Filing: 1968-05-10
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Granted: 1971-02-02
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Expires: 1988-05-10
Abstract
Abstract A mold assembly for a continuous casting mold, which has an open ended mold cavity therethrough, is in two parts that are separable at a plane extending axially through the cavity. The parts are held together, under pressure, by springs, or hydraulic or pneumatic means, and they are separated by toggle levers, which are operable to overcome the pressure normally holding the parts together. Guide rolls adjacent the exit end of the mold cavity, for guiding a strand out of the mold, hold the emerging strand in fixed axial relation to the center line of the mold cavity. The mold assembly is constructed and arranged for both parts of the mold to move back from opposite sides of a strand in the mold, when the mold parts are separated at the end of a casting run, and thereby assure complete release of the strand from the mold.
Inventors
- 👤 Eric T Vogel
- 👤 Herbert Fastert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:20
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/0406
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
An apparatus for continuous casting of metal having a mold with a deeply indented open-ended cavity therethrough wherein molten metal poured in one end of the cavity is peripherally solidified in the mold and withdrawn as a cast strand from the other end, said mold comprising two parts separable at a plane extending axially through the cavity, pressure means for applying constant pressure to urge the two mold parts together firmly, mold part separation means for overcoming the pressure applied by the pressure means and drawing back the two mold parts for releasing the tail end of a cast strand from the mold at the end of a casting run and means for holding said strand axially stationary during mold separation.
Claim 2
Independent Claim
121 words
An apparatus for continuous casting of metal having a mold with a deeply indented open-ended cavity therethrough wherein molten metal poured in one end of the cavity is peripherally solidified in the mold and withdrawn as a cast strand from the other end, said mold comprising two parts separable at a plane extending axially through the cavity, pressure means for applying constant pressure to urge the two mold parts together firmly, mold part separation means for overcoming the pressure applied by the pressure means and drawing back the two mold parts for releasing the tail end of a cast strand from the mold at the end of a casting run and means for holding said strand axially stationary during mold separation.
Claim 3
Dependent Claim
60 words
The apparatus of claim 1 in which each of said parts is supported to move relatively toward and away from said plane, and said pressure means are arranged at the two opposite sides of the mold relative to said plane to enable each of the parts to be moved back from the plane against pressure applied by the pressure means.
Claim 4
Dependent Claim
61 words
The apparatus of claim 2 which includes in combination: guide and support means mounted in fixed position relative to said plane adjacent the end of the mold cavity, from which a cast strand emerges, for supporting said strand in fixed axial relation to said plane; and means for separating the two parts by moving each of them back from said plane.
Claim 5
Dependent Claim
131 words
The apparatus of claim 3 in which the release means comprises at least one toggle lever having two lever arms pivotally connected end to end to form a knee joint, the outer ends of the lever arms being pivotally connected respectively to the two parts of the mold for its lever arms to be at an angle at the knee joint when the parts of the mold are together, said toggle lever being mounted for movement of the knee joint in a line at right angles to the direction in which the mold parts move apart for separating the parts by movement of the knee joint in one direction and then bringing them back together by movement in the opposite direction, and means for moving the knee joiNt in said directions.
Claim 6
Dependent Claim
60 words
The apparatus of claim 4 including means confining the knee joint in a path of movement in a straight line parallel to the direction of the axis of the mold cavity, and means supporting and guiding the two parts of the mold for movement in a plane at right angles to the direction of the axis of the mold cavity.
Claim 7
Dependent Claim
20 words
The apparatus of claim 5 including at least one of said toggle levers at two opposite ends of the mold.
Claim 8
Dependent Claim
91 words
The apparatus of claim 5 including a pair of said toggle levers connected to said parts at one end of the mold with their respective knee joints aligned for separating the parts by movement of the respective knee joints in the same direction, a link pivotally connected to each of the knee joints, a lever having one end pivotally connected to the link, said lever being pivotally mounted for moving the link and knee joints in successively opposite directions for separating the parts of the mold and bringing them together again.
Claim 9
Dependent Claim
67 words
The apparatus of claim 7 including means for pivoting said lever comprising a threaded shaft arranged at an angle to the lever and parallel to the plane of movement thereof, a block threaded on the shaft, said block being pivotally connected to the other end of the lever, and means for rotating the shaft for moving the block relatively along the shaft to thereby pivot the lever.
Claim 10
Dependent Claim
183 words
The apparatus of claim 7 including a second pair of said toggle levers, mounted on the opposite end of the mold, and having a link pivotally connected to each of the knee joints of said second pair, a lever for each pair of toggle levers, said levers each having one end pivotally connected respectively to one of said links and being pivotally mounted for moving the links and knee joints in successively opposite directions for separating the parts of the mold and bringing them together again, a threaded shaft for each lever, said threaded shafts being arranged respectively at an angle to the levers and parallel to the planes of movement thereof, said threaded shafts each having a block threaded thereon, with said blocks pivotally connected respectively to said levers, a rotatable drive shaft, and gear means operatively connecting the drive shaft and said threaded shafts for rotating the latter shafts when the drive shaft is rotated, thereby to move the blocks relatively along the threaded shafts to pivot the levers for separating the parts of the mold and then bringing them together.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |