US3693352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cooling wide continuous metal castings, particularly steel castings
Assignee: Mannesmann Demag AG
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Filing: 1970-09-22
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Granted: 1972-09-26
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Expires: 1990-09-22
Abstract
Abstract A method for cooling wide continuous metal castings uses cooling water jets which impinge on the casting surface in the secondary cooling zone and which are produced with a slanting or arched characteristic. The jets are distributed over the width and length of the casting to form a cohering jet covering the width of the casting and having its greatest cooling power in the longitudinally extending central zone of the casting. The kinetic energy of the cohering jet is controlled to be intentionally smaller in the marginal impinement zones along the casting and, with increasing distance from the casting surface, the kinetic energy is increased, from the margins to the central zone of the casting, in proportion to the quantity of heat to be extracted locally. Apparatus for practicing the method includes spray cone nozzles which are contiguous to each other, and a supply line extending substantially centrally of the casting is adjustable in height during the cooling operation.
Inventors
- 👤 Horst Hinze
- 👤 Frantisek J Jansch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:45
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/124; B22D11/1246; Y; Y10; Y10S; Y10S239/00; Y10S239/01
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
In a method for cooling roller-supported wide continuous metal castings, particularly steel castings, using cooling water jets which impinge on the casting surface in the secondary cooling zone and which jets are produced with a slanting or arched characteristic and, in use, are distributed over the width and the length of the casting, the improvement comprising: forming a cohering jet, centered on the longitudinal centerline of the casting, covering the width of the casting in a single continuous substantially rectangular pattern extending across the casting and having its greatest cooling power in the longitudinally extending central zone of the casting; controlling the kinetic energy of the jet to be intentionally smaller in the lateral marginal impingement zones along the casting; and, with increasing distance from the casting surface, increasing the kinetic energy, from the lateral margins of the casting to the central zone thereof, in proportion to the quantity of heat to be extracted locally.
Claim 2
Dependent Claim
155 words
In a method for cooling roller-supported wide continuous metal castings, particularly steel castings, using cooling water jets which impinge on the casting surface in the secondary cooling zone and which jets are produced with a slanting or arched characteristic and, in use, are distributed over the width and the length of the casting, the improvement comprising: forming a cohering jet, centered on the longitudinal centerline of the casting, covering the width of the casting in a single continuous substantially rectangular pattern extending across the casting and having its greatest cooling power in the longitudinally extending central zone of the casting; controlling the kinetic energy of the jet to be intentionally smaller in the lateral marginal impingement zones along the casting; and, with increasing distance from the casting surface, increasing the kinetic energy, from the lateral margins of the casting to the central zone thereof, in proportion to the quantity of heat to be extracted locally.
Claim 3
Dependent Claim
34 words
In a method for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 1, including applying the cohering jet of cooling water to the casting supporting rollers throughout the full lengths thereof.
Claim 4
Dependent Claim
27 words
In a method for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 1, including oscillating the cohering jet over the surface to be cooled.
Claim 5
Dependent Claim
170 words
In apparatus for cooling roller-supported wide continuous metal castings, particularly steel castings, using cooling water jets which impinge on the casting surface in the secondary cooling zone and which jets are produced with a slanting or arched characteristic and, in use, are distributed over the width and the length of the casting, the improvement comprising, in combination, a single supply line extending parallel to the longitudinal center line of the casting in each secondary cooling zone; nozzle connections included in said single supply line and arranged sequentially in the running direction of the casting along the longitudinal center line of the casting; a respective nozzle secured to each nozzle connection to direct a respective cohering jet, centered on the longitudinal center line of the casting, covering the width of the casting in a respective substantially rectangular pattern extending across the casting; a main feed line, and a respective single connecting line, for each secondary cooling zone, connecting said main feed line to the respective supply line for the cooling zone.
Claim 6
Dependent Claim
170 words
In apparatus for cooling roller-supported wide continuous metal castings, particularly steel castings, using cooling water jets which impinge on the casting surface in the secondary cooling zone and which jets are produced with a slanting or arched characteristic and, in use, are distributed over the width and the length of the casting, the improvement comprising, in combination, a single supply line extending parallel to the longitudinal center line of the casting in each secondary cooling zone; nozzle connections included in said single supply line and arranged sequentially in the running direction of the casting along the longitudinal center line of the casting; a respective nozzle secured to each nozzle connection to direct a respective cohering jet, centered on the longitudinal center line of the casting, covering the width of the casting in a respective substantially rectangular pattern extending across the casting; a main feed line, and a respective single connecting line, for each secondary cooling zone, connecting said main feed line to the respective supply line for the cooling zone.
Claim 7
Dependent Claim
26 words
In apparatus for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 4, in which said nozzle connections are provided with single flat nozzles.
Claim 8
Dependent Claim
33 words
In apparatus for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 4, in which said nozzle connections are provided with plural individually operable nozzles of different flow cross section stages.
Claim 9
Dependent Claim
60 words
In apparatus for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 4, in which said nozzle connections are provided with a pair of spray cone nozzles arranged in contiguous oblique arrangement with the two adjacent inner sloping sides of the cones extending vertically parallel and the outer sloping sides of the cones directed onto the casting margins.
Claim 10
Dependent Claim
57 words
In apparatus for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 4, in which each supply line is adjustable in height during operation; adjusting means including a motor connected to each supply line to adjust the same in height; and respective flexible reinforced hose lines connecting each connecting line with said main feed line.
Claim 11
Dependent Claim
33 words
In apparatus for cooling roller-supported wide continuous metal castings, the improvement claimed in claim 4, in which each nozzle connection is disposed, longitudinally of the casting, between a pair of adjacent supporting rollers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |