US4307772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold for electromagnetic casting
Assignee: Rio Tinto Switzerland AG
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Filing: 1980-03-06
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Granted: 1981-12-29
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Expires: 2000-03-06
Abstract
Abstract A mold for electromagnetic continuous casting has a supporting frame for an induction coil and a cooling device which features at least one nozzle for directing a liquid coolant onto the surface of the ingot being cast. A section (15) is provided in line with the stream of liquid coolant emerging from at least one nozzle such that it provides an impacting surface for deflecting the stream of coolant onto the surface of the ingot.
Inventors
- 👤 Walter Haller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:02
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/01; B22D11/015
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
181 words
A method for electromagnetically continuously casting molten metal comprising: providing a support frame; providing an inductor associated with said support frame for applying a magnetic field to the molten metal to define a mold cavity; providing coolant supply means including at least one discharge nozzle for feeding a coolant stream to a first location of impingement on a surface of a cast ingot; and continuously casting metal into said mold cavity to produce a continuous casting; providing deflecting means separate from said coolant supply means and remote and downstream of said at least one discharge nozzle for controlling the position and angle at which the coolant stream is applied to the surface of said continuous casting by deflecting and redirecting said coolant stream emanating from said at least one discharge nozzle onto a surface of said continuous casting at a second location of impingement, taken along a direction of casting withdrawal, relatively above said first location of impingement of a stream emanating from said discharge nozzle; and deflecting and redirecting said coolant stream from said first location to said second location.
Claim 2
Independent Claim
181 words
A method for electromagnetically continuously casting molten metal comprising: providing a support frame; providing an inductor associated with said support frame for applying a magnetic field to the molten metal to define a mold cavity; providing coolant supply means including at least one discharge nozzle for feeding a coolant stream to a first location of impingement on a surface of a cast ingot; and continuously casting metal into said mold cavity to produce a continuous casting; providing deflecting means separate from said coolant supply means and remote and downstream of said at least one discharge nozzle for controlling the position and angle at which the coolant stream is applied to the surface of said continuous casting by deflecting and redirecting said coolant stream emanating from said at least one discharge nozzle onto a surface of said continuous casting at a second location of impingement, taken along a direction of casting withdrawal, relatively above said first location of impingement of a stream emanating from said discharge nozzle; and deflecting and redirecting said coolant stream from said first location to said second location.
Claim 3
Dependent Claim
24 words
A method according to claim 1 further including the step of impacting said coolant stream on an inclined surface for deflecting said coolant stream.
Claim 4
Dependent Claim
38 words
A method according to claim 2 further including the step of varying the angle of the incline for controlling the position and angle at which the coolant stream is applied to the surface of the ingot being cast.
Claim 5
Dependent Claim
147 words
A mold for electromagnetic continuous casting molten metal comprising a support frame, an inductor coil associated with said support frame for applying a magnetic field to define a model cavity and coolant supply means associated with said inductor including at least one discharge nozzle for feeding a coolant stream from said coolant supply means to a first location of impingement on a surface of a cast ingot for solidifying said molten metal; the improvement comprising deflecting means separate from said coolant supply means and spaced apart from and downstream of said at least one discharge nozzle for deflecting and redirecting said coolant stream emanating from said at least one discharge nozzle onto a surface of an ingot being cast at a second location of impingement taken along a direction of casting withdrawal, relatively above said first location of impingement of a stream emanating from said discharge nozzle.
Claim 6
Dependent Claim
147 words
A mold for electromagnetic continuous casting molten metal comprising a support frame, an inductor coil associated with said support frame for applying a magnetic field to define a model cavity and coolant supply means associated with said inductor including at least one discharge nozzle for feeding a coolant stream from said coolant supply means to a first location of impingement on a surface of a cast ingot for solidifying said molten metal; the improvement comprising deflecting means separate from said coolant supply means and spaced apart from and downstream of said at least one discharge nozzle for deflecting and redirecting said coolant stream emanating from said at least one discharge nozzle onto a surface of an ingot being cast at a second location of impingement taken along a direction of casting withdrawal, relatively above said first location of impingement of a stream emanating from said discharge nozzle.
Claim 7
Dependent Claim
24 words
A mold according to claim 4 wherein said inductor coil is provided with a recess and said deflecting means is supported within said recess.
Claim 8
Dependent Claim
24 words
A mold according to claim 4 wherein said support frame is provided with a recess and said deflecting means is supported within said recess.
Claim 9
Dependent Claim
17 words
A mold according to claim 4 wherein said deflecting means is formed of an electrically insulated plastic.
Claim 10
Dependent Claim
15 words
A mold according to claim 7 wherein said plastic is fiber glass reinforced epoxy plastic.
Claim 11
Dependent Claim
20 words
A mold according to claim 4 wherein said deflecting means comprises an impact surface inclined toward the direction of casting.
Claim 12
Dependent Claim
36 words
A mold according to claim 9 including means for adjusting the inclined impact surface whereby the position and angle at which the coolant stream is applied to the surface of the ingot being cast is changed.
Claim 13
Dependent Claim
44 words
A mold according to claim 9 wherein said deflecting means is exchangeable with deflecting means having impact surfaces of different inclinations so as to adjust the position and angle at which the coolant stream is applied to the surface of the ingot being cast.
Claim 14
Dependent Claim
21 words
A mold according to claim 9 wherein the radial cross section of said impact surface is a segment of a curve.
Claim 15
Dependent Claim
21 words
A mold according to claim 9 wherein the radial cross section of said impact surface is a segment of a parabola.
Claim 16
Dependent Claim
45 words
A mold according to claim 9 wherein said mold is rectangular and said deflecting means is a rectangle shape wherein said impact surface of each side of said rectangle when viewed over the entire length thereof is arc shaped with a crown in the middle.
Claim 17
Dependent Claim
53 words
A mold according to claim 9 wherein said impact surface is removably secured to said deflecting means such that impact surfaces of varying inclination are exchangeable on said deflecting means whereby the position and angle at which the coolant stream is applied to the surface of the ingot being cast may be adjusted.
Claim 18
Dependent Claim
17 words
A mold according to claim 15 wherein said impact surface is formed of an electrically insulated plastic.
Claim 19
Dependent Claim
15 words
A mold according to claim 16 wherein said plastic is fiber glass reinforced epoxy plastic.
Claim 20
Dependent Claim
177 words
A mold for electromagnetic continuous casting molten metal comprising a support frame, an inductor coil associated with said support frame for applying a magnetic field to define a mold cavity and coolant supply means associated with said inductor including at least one discharge nozzle for feeding a coolant stream from said coolant supply means to a first location of impingement on a surface of a cast ingot for solidifying said molten metal; the improvement comprising deflecting means separate from said coolant supply means and spaced apart from and downstream of said at least one discharge nozzle for controlling the position and angle at which the coolant stream is applied to an ingot being cast, said deflecting means for controlling comprises an exchangeable coolant stream deflecting means for deflecting and redirecting said coolant stream emanating from said at least one discharge nozzle onto a surface of an ingot being cast at a second location of impingement taken along a direction of casting withdrawal, relatively above said first location of impingement of a stream emanating from said discharge nozzle.
Claim 21
Dependent Claim
177 words
A mold for electromagnetic continuous casting molten metal comprising a support frame, an inductor coil associated with said support frame for applying a magnetic field to define a mold cavity and coolant supply means associated with said inductor including at least one discharge nozzle for feeding a coolant stream from said coolant supply means to a first location of impingement on a surface of a cast ingot for solidifying said molten metal; the improvement comprising deflecting means separate from said coolant supply means and spaced apart from and downstream of said at least one discharge nozzle for controlling the position and angle at which the coolant stream is applied to an ingot being cast, said deflecting means for controlling comprises an exchangeable coolant stream deflecting means for deflecting and redirecting said coolant stream emanating from said at least one discharge nozzle onto a surface of an ingot being cast at a second location of impingement taken along a direction of casting withdrawal, relatively above said first location of impingement of a stream emanating from said discharge nozzle.
Claim 22
Dependent Claim
20 words
A mold according to claim 18 wherein said deflecting means comprises an impact surface inclined toward the direction of casting.
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) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |