US4221587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making metallic glass powder
Assignee: Honeywell International Inc
•
Filing: 1979-03-23
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Granted: 1980-09-09
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Expires: 1999-03-23
Abstract
Abstract A method for making metallic glass powder is disclosed. A jet of a molten glass forming metal alloy is impinged under an acute angle against the inner surface of a rotating cylindrical chill body, whereon it is atomized into a stream of droplets of molten alloy, which again impinge on the chill surface to be rapidly quenched into metallic glass powder.
Inventors
- 👤 Ranjan Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:15
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/002; B22F9/008; B22F9/02; B22F9/06; B22F9/08; B22F9/10; B22F9/082; B22F2009/084; B22F2999/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
109 words
A method for making metallic glass powder comprising the steps of: forming a jet of molten, glass forming metal alloy, and impinging the jet against the inner surface of a rotating cylindrical chill body in the direction of movement of the surface at an acute angle within the range of from about 5° to 45° to effect atomization of the molten alloy into a stream of droplets of molten alloy, permitting the droplets to impinge on the inner surface of the chill body to be rapidly quenched to form solid particles of metallic glass powder, and removing the metallic glass powder from the inner surface of the chill body.
Claim 2
Independent Claim
109 words
A method for making metallic glass powder comprising the steps of: forming a jet of molten, glass forming metal alloy, and impinging the jet against the inner surface of a rotating cylindrical chill body in the direction of movement of the surface at an acute angle within the range of from about 5° to 45° to effect atomization of the molten alloy into a stream of droplets of molten alloy, permitting the droplets to impinge on the inner surface of the chill body to be rapidly quenched to form solid particles of metallic glass powder, and removing the metallic glass powder from the inner surface of the chill body.
Claim 3
Dependent Claim
14 words
The method for making metallic glass powder according to claim 1 conducted in vacuum.
Claim 4
Dependent Claim
28 words
The method of claim 1 wherein the jet is impinged against the inner surface of the chill body at an acute angle of from about 20° to 30°.
Claim 5
Dependent Claim
28 words
The method of claim 1 wherein the chill body is rotating to provide a chill surface velocity within the range of from about 15 m/sec to 40 m/sec.
Claim 6
Dependent Claim
22 words
The method of claim 1 wherein the jet has a diameter within the range of from about 0.25 mm to 2.5 mm.
Claim 7
Dependent Claim
22 words
The method of claim 1 wherein the jet has a velocity within the range of from about 5 m/sec to 15 m/sec.
Claim 8
Dependent Claim
40 words
The method of claim 3 wherein the chill body is rotating to provide a chill surface velocity of from about 15 m/sec to 40 m/sec and wherein the jet has a velocity of from about 5 m/sec to 20 m/sec.
References Cited (Backward Citations)
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US4067732A
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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) | 1983-09-09 | 1984-03-10 | 1984-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-09 | 1988-03-10 | 1988-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-09 | 1992-03-10 | 1992-09-09 | $7700.00 | Window Closed / Lapsed |