US4386896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making metallic glass powder
Assignee: Honeywell International Inc
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Filing: 1982-02-18
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Granted: 1983-06-07
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Expires: 2002-02-18
Abstract
Abstract Apparatus for making metallic glass powder is disclosed, which involves atomizing a jet of molten glass forming metal alloy by impinging with a moving body to form a stream of discrete molten droplets of the metal alloy, followed by impinging that stream on a travelling chill surface to effect rapid solidification of the molten droplets. The powder can be fabricated into solid articles.
Inventors
- 👤 Ranjan Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/002; B22F9/008; B01; B01J; B01J2/00; B01J2/02; B01J2/04; B22F9/02; B22F9/06; B22F9/08; B22F9/10; B22F9/082; B22F2009/084; B22F2999/00; Y; Y10; Y10S; Y10S425/00; Y10S425/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
An apparatus for making metallic glass powder comprising, in combination: (a) holding means for holding molten metal; (b) nozzle means in communication with said holding means for generating a jet of molten metal; (c) means for expelling molten metal through said nozzle means to generate a jet of molten metal; (d) means for atomizing said jet into a stream of discrete droplets of molten metal; (e) a chill surface located in the path of said stream of discrete droplets of molten metal for impingement of said droplets thereon; (f) gating means for directing said stream of droplets along said path, said gating means having a width through which said droplets pass; and (g) means for adjusting the surface speed of said chill surface and the width of said gating means to solidify said atomized droplets at a rate of at least about 10 4 ° C./second and minimize overlap of the droplets during said impingement.
Claim 2
Independent Claim
155 words
An apparatus for making metallic glass powder comprising, in combination: (a) holding means for holding molten metal; (b) nozzle means in communication with said holding means for generating a jet of molten metal; (c) means for expelling molten metal through said nozzle means to generate a jet of molten metal; (d) means for atomizing said jet into a stream of discrete droplets of molten metal; (e) a chill surface located in the path of said stream of discrete droplets of molten metal for impingement of said droplets thereon; (f) gating means for directing said stream of droplets along said path, said gating means having a width through which said droplets pass; and (g) means for adjusting the surface speed of said chill surface and the width of said gating means to solidify said atomized droplets at a rate of at least about 10 4 ° C./second and minimize overlap of the droplets during said impingement.
Claim 3
Dependent Claim
33 words
The apparatus for making metallic glass powder according to claim 1 wherein the means for atomizing said jet comprises a rotatable body having a surface which is not wetted by the molten metal.
Claim 4
Dependent Claim
16 words
The apparatus for making metallic glass powder according to claim 1 enclosed in a vacuum chamber.
Claim 5
Dependent Claim
53 words
The apparatus for making metallic glass powder according to claim 1 wherein the means for atomizing said jet comprises means for projecting a jet of inert fluid which is directed against the jet of molten metal expelled through the nozzle to atomize said jet into a stream of discrete droplets of molten metal.
Claim 6
Dependent Claim
37 words
The apparatus as set forth in claim 4, wherein the stream of discrete droplets forms a spray, and the chill surface is adapted to be moved in a path essentially normal to the axis of said spray.
Claim 7
Dependent Claim
31 words
The apparatus as set forth in claim 5 wherein the chill surface is provided by a rotatably mounted body constructed of highly conductive metal, which body is provided with cooling means.
Claim 8
Dependent Claim
21 words
The apparatus as set forth in claim 6 further comprising means for removing solidified atomized metal droplets from the chill surface.
Claim 9
Dependent Claim
27 words
The apparatus as set forth in claim 6 further comprising gating means for minimizing contact between atomized metal droplets and already solidified droplets on the chill surface.
References Cited (Backward Citations)
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US3533136A
Cited
US3887667A
Cited
US4027718A
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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) | 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 |