Patent US4386648A successfully refreshed from Google Patents.
US4386648A
Expired / Lapsed
US
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Method and device for manufacture of amorphous metal tapes
Assignee: Vacuumschmelze GmbH and Co KG
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Filing: 1980-09-10
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Granted: 1983-06-07
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Expires: 2000-09-10
Abstract
Abstract Amorphous metal tapes are produced by expressing a metallic melt in a supply container through at least one nozzle opening onto a moving surface of a cooling body positioned in relatively close proximity to the nozzle opening. The nozzle opening is 1.5 through 6 mm wide, as measured in the direction of motion of the cooling body surface, which is positioned at a distance of about 0.005 through 0.6 times the width of the nozzle opening from such opening and is moved at a velocity of at least 5 meters per second past such nozzle opening.
Inventors
- 👤 Hans-Reiner Hilzinger
- 👤 Kurt Krueger
- 👤 Stefan Hock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:51
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
In a method of producing amorphous metal tapes wherein a metallic melt is expressed from a supply container through a nozzle having at least one nozzle opening defined therein and is allowed to solidify on a surface of a cooling body positioned in close proximity to and travelling in a direction of motion past the nozzle opening at a rate sufficient to produce an amorphous metal tape, the improvement comprising, in combination, moving said cooling body surface at a velocity of at least 5 m/s past said nozzle opening; providing a nozzle having at least one nozzle opening with a width dimension of 1.5 to about 6 mm, as measured in the direction of motion of said cooling body surface; and maintaining a distance of about 0.005 to about 0.6 times the width of said nozzle opening between said cooling body surface and said nozzle opening.
Claim 2
Dependent Claim
146 words
In a method of producing amorphous metal tapes wherein a metallic melt is expressed from a supply container through a nozzle having at least one nozzle opening defined therein and is allowed to solidify on a surface of a cooling body positioned in close proximity to and travelling in a direction of motion past the nozzle opening at a rate sufficient to produce an amorphous metal tape, the improvement comprising, in combination, moving said cooling body surface at a velocity of at least 5 m/s past said nozzle opening; providing a nozzle having at least one nozzle opening with a width dimension of 1.5 to about 6 mm, as measured in the direction of motion of said cooling body surface; and maintaining a distance of about 0.005 to about 0.6 times the width of said nozzle opening between said cooling body surface and said nozzle opening.
Claim 3
Dependent Claim
65 words
In a method as defined in claim 1, wherein moving said cooling body surface occurs at a velocity in the range of 20 to about 40 m/s, providing said nozzle opening with a width dimension of 2 to about 4 mm, and maintaining said distance between said cooling body surface and said nozzle opening smaller than about 0.1 times the width of said nozzle opening.
Claim 4
Independent Claim
145 words
A device for producing amorphous metal tapes, comprising, in combination: (a) a cooling body having a casting surface which rotates about at least one axis thereof in a direction of motion; (b) means associated with the cooling body for providing a metallic melt to the casting surface, including a supply container and a nozzle in fluid communication therewith; and (c) said nozzle having an opening therein positioned in relatively close proximity to such surface; said nozzle opening having a width dimension of 1.5 to about 6 mm, as measured in the direction of motion of said cooling body surface, said cooling body surface being maintained at a distance of about 0.005 times to about 0.6 times the width of said nozzle opening from said nozzle opening, and said cooling body surface being moved at a velocity of at least 5 m/s past said nozzle opening.
Claim 5
Independent Claim
145 words
A device for producing amorphous metal tapes, comprising, in combination: (a) a cooling body having a casting surface which rotates about at least one axis thereof in a direction of motion; (b) means associated with the cooling body for providing a metallic melt to the casting surface, including a supply container and a nozzle in fluid communication therewith; and (c) said nozzle having an opening therein positioned in relatively close proximity to such surface; said nozzle opening having a width dimension of 1.5 to about 6 mm, as measured in the direction of motion of said cooling body surface, said cooling body surface being maintained at a distance of about 0.005 times to about 0.6 times the width of said nozzle opening from said nozzle opening, and said cooling body surface being moved at a velocity of at least 5 m/s past said nozzle opening.
Claim 6
Dependent Claim
80 words
A device as defined in claim 4 wherein said nozzle opening has a width dimension of 2 to about 4 mm, as measured in the direction of motion of said cooling body surface, said cooling body surface is maintained at a distance less than about 0.1 times the width of said nozzle opening from said nozzle opening and said cooling body surface is moved at a velocity in the range of 20 to about 40 m/s past said nozzle opening.
Claim 7
Dependent Claim
16 words
A device as defined in claim 3 wherein said nozzle opening has an approximately circular cross-section.
Claim 8
Dependent Claim
26 words
A device as defined in claim 4 wherein a moveable plug member is operationally associated with said nozzle opening for selectively opening and closing said opening.
Claim 9
Dependent Claim
24 words
A device as defined in claim 6 wherein said moveable plug member comprises a protective tube of a thermocouple immersible into the metallic melt.
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) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |