US3845805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid quenching of free jet spun metal filaments
Assignee: Honeywell International Inc
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Filing: 1972-11-14
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Granted: 1974-11-05
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Expires: 1992-11-14
Abstract
Abstract A process is provided whereby filaments of metals may be formed by rapid solidification of a molten jet in a fluid medium. Filaments of metastable alloys such as amorphous metals and filaments of fine grained structure having novel orientation may be obtained.
Inventors
- 👤 S Kavesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:25
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/005
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
A method of making filaments from normally solid metal which comprises the steps of: a. melting said metal; b. extruding a molten filament of the molten metal; c. passing said molten filament in sequence (1) through a controlled gaseous interface zone and (2) into a liquid quench zone, said quench zone comprising a liquid medium which is flowing cocurrently with and essentially at the same velocity as the filament introduced therein; and d. recovering the solidified filament.
Claim 2
Independent Claim
77 words
A method of making filaments from normally solid metal which comprises the steps of: a. melting said metal; b. extruding a molten filament of the molten metal; c. passing said molten filament in sequence (1) through a controlled gaseous interface zone and (2) into a liquid quench zone, said quench zone comprising a liquid medium which is flowing cocurrently with and essentially at the same velocity as the filament introduced therein; and d. recovering the solidified filament.
Claim 3
Dependent Claim
42 words
The method of claim 1 wherein the flow rate of the liquid of said quench medium at the point where the molten filament is introduced therein is substantially equal to the rate of movement of the filament passing into the quench medium.
Claim 4
Independent Claim
70 words
A method for forming filament from a melt of normally solid metal which comprises: a. melting the metal; b. forming a free jet of the molten metal in a controlled environment interface; c. traversing the free jet through said interface into a fluid quench medium flowing cocurrently with and essentially at the same velocity as the jet; and d. collecting said metal from said quench medium in solid filamentary form.
Claim 5
Independent Claim
70 words
A method for forming filament from a melt of normally solid metal which comprises: a. melting the metal; b. forming a free jet of the molten metal in a controlled environment interface; c. traversing the free jet through said interface into a fluid quench medium flowing cocurrently with and essentially at the same velocity as the jet; and d. collecting said metal from said quench medium in solid filamentary form.
Claim 6
Dependent Claim
38 words
The method of claim 3 wherein said quench medium comprises a liquid which provides A high heat flux regime to exist along the interface with the molten jet and the heat flux is at least 0.4 cal/sq. cm-*C-sec.
Claim 7
Dependent Claim
36 words
The method of claim 3 wherein the temperature of the free jet of molten material is less than about 700* C. and the fluid quench medium is water at a temperature of from about 0*-20* C.
Claim 8
Dependent Claim
39 words
The method of claim 3 wherein the temperature of the free jet of molten material is less than about 1000* C. and the fluid medium is an aqueous sodium chloride solution at a temperature of less than 0* C.
Claim 9
Dependent Claim
40 words
The method of claim 3 wherein the jet temperature of the free jet of molten material is less than about 1500* C. and the fluid medium is an aqueous magnesium chloride solution at a temperature of less than -20* C.
Claim 10
Dependent Claim
34 words
The method of claim 3 wherein the temperature of the free jet of molten material is less than about 2000* C. and the fluid medium is an aqueous zinc chloride at below -30* C.
Claim 11
Dependent Claim
15 words
The method of claim 3 wherein the molten material is a metal or metal alloy.
Claim 12
Dependent Claim
26 words
The method of claim 3 wherein the quench medium has a chemical reactivity with the molten jet sufficient to form a stabilizing film on the jet.
Claim 13
Dependent Claim
31 words
The method of claim 10 wherein the quench medium comprises an aqueous solution containing a sulphide ion and the molten metal is an alloy containing at least 50 weight percent copper.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |