US4037646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molds for continuously casting steel
Assignee: Nippon Steel Corp
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Filing: 1976-06-04
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Granted: 1977-07-26
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Expires: 1996-06-04
Abstract
Abstract A copper or copper alloy mold for continuously casting steel is characterized in that the mold has a first layer formed on its interior surface and comprising at least one of nickel and cobalt and a second layer formed on the first layer and containing at least one of nickel and cobalt as a main component and at least one of phosphorus and boron.
Inventors
- 👤 Senri Hara
- 👤 Tomohiko Kimura
- 👤 Hiroshi Tomono
- 👤 Takayuki Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/059
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
67 words
A copper or copper alloy mold for continuously casting steel characterized in that the mold has a first layer formed on its interior surface and consisting essentially of at least one of nickel and cobalt and a second layer formed on the first layer and consisting essentially of at least one of nickel and cobalt as a main component and at least one of phosphorus and boron.
Claim 2
Dependent Claim
67 words
A copper or copper alloy mold for continuously casting steel characterized in that the mold has a first layer formed on its interior surface and consisting essentially of at least one of nickel and cobalt and a second layer formed on the first layer and consisting essentially of at least one of nickel and cobalt as a main component and at least one of phosphorus and boron.
Claim 3
Dependent Claim
59 words
The copper or copper alloy mold for continuously casting steel according to claim 1 in which the first layer has a thickness of about 30 to about 1900 μ and the second layer has a thickness of about 10 to about 100 μ, the total thickness of the first and the second layers being about 50 to 2000 μ.
Claim 4
Dependent Claim
40 words
The copper or copper alloy mold for continuously casting steel according to claim 1 in which the phosphorus content in the second layer is in the range of 4 to 20 wt.% based on the weight of the second layer.
Claim 5
Dependent Claim
40 words
The copper or copper alloy mold for continuously casting steel according to claim 1 in which the boron content in the second layer is in the range of 2 to 15 wt.% based on the weight of the second layer.
Claim 6
Dependent Claim
78 words
A copper or copper alloy mold for continuously casting steel characterized in that the mold has a first layer formed on its interior surface and consisting essentially of at least one of nickel and cobalt and a second layer formed on the first layer and consisting essentially of at least one of nickel and cobalt as a main component and at least one of phosphorus and boron, the second layer including an oxide film defining the surface thereof.
Claim 7
Dependent Claim
78 words
A copper or copper alloy mold for continuously casting steel characterized in that the mold has a first layer formed on its interior surface and consisting essentially of at least one of nickel and cobalt and a second layer formed on the first layer and consisting essentially of at least one of nickel and cobalt as a main component and at least one of phosphorus and boron, the second layer including an oxide film defining the surface thereof.
Claim 8
Dependent Claim
58 words
The copper or copper alloy mold for continuously casting steel according to claim 5 in which the first layer has a thickness of about 30 to about 1900 μ and the second layer has a thickness of about 10 to about 100 μ, the total thickness of the first and the second layers being about 50 to 2000μ.
Claim 9
Dependent Claim
40 words
The copper or copper alloy mold for continuously casting steel according to claim 5 in which the phosphorus content in the second layer is in the range of 4 to 20 wt.% based on the weight of the second layer.
Claim 10
Dependent Claim
40 words
The copper or copper alloy mold for continuously casting steel according to claim 5 in which the boron content in the second layer is in the range of 2 to 15 wt.% based on the weight of the second layer.
Claim 11
Dependent Claim
28 words
The copper or copper alloy mold for continuously casting steel according to claim 5 in which the oxide film has a thickness of at least about 0.001 μ.
Claim 12
Dependent Claim
77 words
A copper or copper alloy mold for continuously casting steel characterized in that the mold has a first layer formed on its interior surface and consisting essentially of at least one of nickel and cobalt, a second layer formed on the first layer and consisting essentially of at least one of nickel and cobalt as a main component and at least one of phosphorus and boron and a third layer of chromium formed on the second layer.
Claim 13
Dependent Claim
77 words
A copper or copper alloy mold for continuously casting steel characterized in that the mold has a first layer formed on its interior surface and consisting essentially of at least one of nickel and cobalt, a second layer formed on the first layer and consisting essentially of at least one of nickel and cobalt as a main component and at least one of phosphorus and boron and a third layer of chromium formed on the second layer.
Claim 14
Dependent Claim
59 words
The copper or copper alloy mold for continuously casting steel according to claim 10 in which the first layer has a thickness of about 30 to about 1900 μ and the second layer has a thickness of about 10 to about 100 μ, the total thickness of the first and the second layers being about 50 to 2000 μ.
Claim 15
Dependent Claim
40 words
The copper or copper alloy mold for continuously casting steel according to claim 10 in which the phosphorus content in the second layer is in the range of 4 to 20 wt.% based on the weight of the second layer.
Claim 16
Dependent Claim
40 words
The copper or copper alloy mold for continuously casting steel according to claim 10 in which the boron content in the second layer is in the range of 2 to 15 wt.% based on the weight of the second layer.
Claim 17
Dependent Claim
29 words
The copper or copper alloy mold for continuously casting steel according to claim 10 in which the chromium layer has a thickness of about 0.1 to about 10 μ.
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) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |