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US4890663A
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Method for producing a ceramic-coated metallic component
Assignee: Interatom Internationale Atomreaktorbau GmbH
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Filing: 1988-05-06
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Granted: 1990-01-02
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Expires: 2008-05-06
Abstract
Abstract A method for producing a metallic component provided with a ceramic lining in a mold includes applying a first ceramic layer to a mold. A sliding layer is applied to the first ceramic layer. A second ceramic layer divided by joints into individual zones is applied to the sliding layer. The second ceramic layer is coated with a metal forming a finished component.
Inventors
- 👤 Mohamed Yarahmadi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:56
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/16; B; B22; B22D; B22D19/00; C; C23; C23C; C23C28/00; F02; F02B; F02B77/00; F02B77/02; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/043; F05C2203/00; F05C2203/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
69 words
A method for producing a metallic component provided with a ceramic lining which comprises the steps of: (a) applying a first ceramic layer to a removable core; (b) applying a sliding layer to the first ceramic layer; (c) applying a second ceramic layer divided by joints into individual zones to the sliding layer; and (d) melt casting around the second ceramic layer with metal to form said finished component.
Claim 2
Independent Claim
69 words
A method for producing a metallic component provided with a ceramic lining which comprises the steps of: (a) applying a first ceramic layer to a removable core; (b) applying a sliding layer to the first ceramic layer; (c) applying a second ceramic layer divided by joints into individual zones to the sliding layer; and (d) melt casting around the second ceramic layer with metal to form said finished component.
Claim 3
Dependent Claim
58 words
The method according to claim 1, which comprises forming the joints in the second ceramic layer with a grid disposed on the sliding layer, and forming the grid from a material that is combusted or sublimed when applying the second ceramic layer and then metal coating the second ceramic layer by melt casting to form said finished component.
Claim 4
Dependent Claim
42 words
The method according to claim 1, which comprises forming the joints in the second ceramic layer with a grid disposed on the sliding layer, and forming the grid from a material that is combusted or sublimed by applying the second ceramic layer.
Claim 5
Dependent Claim
42 words
The method according to claim 1, which comprises forming the joints in the second ceramic layer with a grid disposed on the sliding layer, and forming the grid from a material that is combusted or sublimed by coating the second ceramic layer.
Claim 6
Dependent Claim
31 words
The method according to claim 1, which comprises producing the first ceramic layer from a material from the group consisting of aluminum titanium oxide, magnesium aluminum silicate, zirconium silicate and mullite.
Claim 7
Dependent Claim
15 words
The method according to claim 1, which comprises producing the sliding layer from a metal.
Claim 8
Dependent Claim
37 words
The method according to claim 6, which comprises producing the sliding layer from a material from the group consisting of titanium, a nickel-aluminum alloy, a nickel-chrome alloy, a nickel-chrome-aluminum-yttrium alloy, a nickel-cobalt-chrome-aluminum-yttrium alloy, and a cobalt-chrome-aluminum-yttrium alloy.
Claim 9
Dependent Claim
25 words
The method according to claim 1, which comprises forming the sliding layer from a material from the group consisting of molybdenum disulfide and boron nitride.
Claim 10
Dependent Claim
45 words
The method according to claim 1, which comprises producing the second ceramic layer from a material from the group consisting of aluminum titanium oxide, zirconium oxide/magnesium oxide, zirconium oxide/yttrium oxide, zirconium silicon oxide, magnesium aluminum silicate, aluminum oxide/silicon oxide, translucent fused quartz, mullite and spinel.
Claim 11
Dependent Claim
18 words
The method according to claim 1, which comprises applying the first and second ceramic layers by plasma spraying.
Claim 12
Dependent Claim
18 words
The method according to claim 1, which comprises applying the first and second ceramic layers by flame spraying.
Claim 13
Dependent Claim
15 words
The method according to claim 1, which comprises applying the sliding layer by plasma spraying.
Claim 14
Dependent Claim
15 words
The method according to claim 1, which comprises applying the sliding layer by flame spraying.
Claim 15
Dependent Claim
38 words
The method according to claim 1, which comprises providing the removeable core for said first ceramic layer in the form of a lost core for producing a hollow component with said ceramic linings on the inner surface thereof.
Claim 16
Dependent Claim
19 words
The method according to claim 10, which comprises forming the core of glass to provide a smooth inner surface.
Claim 17
Dependent Claim
30 words
The method according to claim 15, wherein said glass core is hollow glass and is "lost" by the thermal shock of melt casting the metal to form said finished component.
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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) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |