US3886991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling the withdrawal of heat in molds of continuous casting installations
Assignee: SMS Concast AG
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Filing: 1973-04-16
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Granted: 1975-06-03
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Expires: 1993-04-16
Abstract
Abstract A method of, and apparatus for, controlling the withdrawal of heat from a cast strand by means of a cooling agent during the continuous casting of metals in continuous casting molds having cooling regions along the periphery of the mold and which cooling regions are separated from one another and thus constituting several ducts for said cooling agent, and wherein the withdrawn quantity of heat of each cooling region is measured. The quantity of withdrawn heat is compared with reference values for such quantity of heat which is to be withdrawn and which reference values are dependent upon the form or shape of the continuous casting mold. By virtue of this comparison operation there is determined contact of the skin or shell of the strand at the walls of the cooling region, and as a function of the deviations ascertained by the comparison operation there is controlled the quantity of heat withdrawn at least at one of the cooling regions which neighbors the measured region.
Inventors
- 👤 Walter Meier
- 👤 Werner Bruderer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:08
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/16; B22D11/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
A method of controlling the withdrawal of heat from a cast strand by means of a cooling agent during continuous casting of metals, comprising the steps of casting the strand in a continuous casting mold having several cooling regions adjacent one another around the periphery of the mold and constituting several ducts for the cooling agent, measuring the quantity of heat withdrawn at least at given ones of the cooling regions, comparing the withdrawn quantities of heat with reference values for such quantities of heat which are to be withdrawn and which reference values are dependent upon the shape of the mold, to thereby determine contact of the skin of the strand against the walls of the mold, and as a function of the deviations of the withdrawn quantities of heat and the reference values of such quantities of heat which are to be withdrawn determined by the comparison operation controlling the quantity of heat withdrawn at least at one cooling region adjoining a measured region so as to control the contact of the strand skin and mold wall.
Claim 2
Independent Claim
179 words
A method of controlling the withdrawal of heat from a cast strand by means of a cooling agent during continuous casting of metals, comprising the steps of casting the strand in a continuous casting mold having several cooling regions adjacent one another around the periphery of the mold and constituting several ducts for the cooling agent, measuring the quantity of heat withdrawn at least at given ones of the cooling regions, comparing the withdrawn quantities of heat with reference values for such quantities of heat which are to be withdrawn and which reference values are dependent upon the shape of the mold, to thereby determine contact of the skin of the strand against the walls of the mold, and as a function of the deviations of the withdrawn quantities of heat and the reference values of such quantities of heat which are to be withdrawn determined by the comparison operation controlling the quantity of heat withdrawn at least at one cooling region adjoining a measured region so as to control the contact of the strand skin and mold wall.
Claim 3
Independent Claim
179 words
A method of controlling the withdrawal of heat from a cast strand by means of a cooling agent during continuous casting of metals, comprising the steps of casting the strand in a continuous casting mold having several cooling regions adjacent one another around the periphery of the mold and constituting several ducts for the cooling agent, measuring the quantity of heat withdrawn at least at given ones of the cooling regions, comparing the withdrawn quantities of heat with reference values for such quantities of heat which are to be withdrawn and which reference values are dependent upon the shape of the mold, to thereby determine contact of the skin of the strand against the walls of the mold, and as a function of the deviations of the withdrawn quantities of heat and the reference values of such quantities of heat which are to be withdrawn determined by the comparison operation controlling the quantity of heat withdrawn at least at one cooling region adjoining a measured region so as to control the contact of the strand skin and mold wall.
Claim 4
Independent Claim
179 words
A method of controlling the withdrawal of heat from a cast strand by means of a cooling agent during continuous casting of metals, comprising the steps of casting the strand in a continuous casting mold having several cooling regions adjacent one another around the periphery of the mold and constituting several ducts for the cooling agent, measuring the quantity of heat withdrawn at least at given ones of the cooling regions, comparing the withdrawn quantities of heat with reference values for such quantities of heat which are to be withdrawn and which reference values are dependent upon the shape of the mold, to thereby determine contact of the skin of the strand against the walls of the mold, and as a function of the deviations of the withdrawn quantities of heat and the reference values of such quantities of heat which are to be withdrawn determined by the comparison operation controlling the quantity of heat withdrawn at least at one cooling region adjoining a measured region so as to control the contact of the strand skin and mold wall.
Claim 5
Dependent Claim
85 words
The method as defined in claim 1, particularly for a slab casting mold, including the step of measuring the quantities of heat withdrawn at the cooling regions of the narrow sides of the mold and comparing such with reference values, and as a function of any deviation between the quantities of Heat withdrawn at the cooling regions of the narrow sides of the mold with said reference values controlling the quantities of heat withdrawn at the cooling regions of the wide sides of the mold.
Claim 6
Dependent Claim
83 words
The method as defined in claim 1, including the step of measuring the quantities of heat withdrawn at the cooling regions of the wide sides of the mold and comparing such with said reference values and as a function of the deviation in the comparison of the quantities of heat withdrawn at the cooling regions of the wide sides of the mold with said reference values controlling the quantities of heat withdrawn at the cooling regions of the narrow sides of the mold.
Claim 7
Dependent Claim
26 words
The method as defined in claim 2, wherein the withdrawn quantities of heat at the controlled side are controlled in sections starting from the measured side.
Claim 8
Dependent Claim
26 words
The method as defined in claim 3, wherein the withdrawn quantities of heat at the controlled side are controlled in sections starting from the measured side.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |