Patent US4612259A successfully refreshed from Google Patents.
US4612259A
Expired / Lapsed
US
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Titanium clad steel plate
Assignee: Asahi Kasei Corp
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Filing: 1982-03-03
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Granted: 1986-09-16
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Expires: 2002-03-03
Abstract
Abstract A titanium clad steel plate is formed by conversion rolling an explosively bonded composite which includes intermediate layer selected from tantalum or niobium in alloyed or unalloyed form. The process is particularly characterized by the inclusion of a second intermediate layer of cooper or nickel between the steel and the first intermediate layer. After explosion bonding of this four layered composite, the same may be preheated to for 1 hour at, e.g., 830° C. before hot rolling to a thickness of one fifth that of the composite.
Inventors
- 👤 Fumihide Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K35/00; B23K35/001; B23K35/005; B32; B32B; B32B15/00; B32B15/01; B32B15/013; B23K35/004; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12812
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
123 words
A method for manufacturing a titanium clad steel plate, comprising explosive bonding a cladding metal plate consisting of pure titanium having a titanium content of at least about 99.4% by weight, a first intermediate plate of a metal selected from tantalum, a tantalum alloy, niobium and a niobium alloy and a second intermediate plate of a metal selected from copper, a copper alloy, nickel and a nickel alloy, and a base metal plate consisting of carbon steel so that the first intermediate plate is situated between the cladding metal plate and the second intermediate plate and the second intermediate plate is situated between the first intermediate plate and the base metal plate, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 2
Independent Claim
123 words
A method for manufacturing a titanium clad steel plate, comprising explosive bonding a cladding metal plate consisting of pure titanium having a titanium content of at least about 99.4% by weight, a first intermediate plate of a metal selected from tantalum, a tantalum alloy, niobium and a niobium alloy and a second intermediate plate of a metal selected from copper, a copper alloy, nickel and a nickel alloy, and a base metal plate consisting of carbon steel so that the first intermediate plate is situated between the cladding metal plate and the second intermediate plate and the second intermediate plate is situated between the first intermediate plate and the base metal plate, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 3
Dependent Claim
48 words
The method for manufacturing a titanium clad steel plate according to claim 1, further comprising explosive bonding the same material of an outer layer of the titanium clad steel plate on the surface of said outer layer, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 4
Dependent Claim
123 words
A titanium clad steel plate produced by a method comprising explosive bonding a cladding metal plate consisting of pure titanium having a titanium content of at least about 99.4% by weight, a first intermediate plate of a metal selected from tantalum, a tantalum alloy, niobium and a niobium alloy and a second intermediate plate of a metal selected from copper, a copper alloy, nickel and a nickel alloy, and a base metal plate consisting of carbon steel so that the first intermediate plate is situated between the cladding metal plate and the second intermediate plate and the second intermediate plate is situated between the first intermediate plate and the base metal plate, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 5
Dependent Claim
123 words
A titanium clad steel plate produced by a method comprising explosive bonding a cladding metal plate consisting of pure titanium having a titanium content of at least about 99.4% by weight, a first intermediate plate of a metal selected from tantalum, a tantalum alloy, niobium and a niobium alloy and a second intermediate plate of a metal selected from copper, a copper alloy, nickel and a nickel alloy, and a base metal plate consisting of carbon steel so that the first intermediate plate is situated between the cladding metal plate and the second intermediate plate and the second intermediate plate is situated between the first intermediate plate and the base metal plate, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 6
Dependent Claim
154 words
A titanium clad steel plate produced by a method comprising explosive bonding a cladding metal plate consisting of pure titanium having a titanium content of at least about 99.4% by weight, a first intermediate plate of a metal selected from tantalum, a tantalum alloy, niobium and a niobium alloy and a second intermediate plate of a metal selected from cooper, a copper alloy, nickel and a nickel alloy, and a base metal plate consisting of carbon steel so that the first intermediate plate is situated between the cladding metal plate and the second intermediate plate and the second intermediate plate is situated between the first intermediate plate and the base metal plate, hot rolling the explosive bonded titanium clad steel plate, explosive bonding the same material of an outer layer of the titanium clad steel plate on the surface of said outer layer, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 7
Dependent Claim
154 words
A titanium clad steel plate produced by a method comprising explosive bonding a cladding metal plate consisting of pure titanium having a titanium content of at least about 99.4% by weight, a first intermediate plate of a metal selected from tantalum, a tantalum alloy, niobium and a niobium alloy and a second intermediate plate of a metal selected from cooper, a copper alloy, nickel and a nickel alloy, and a base metal plate consisting of carbon steel so that the first intermediate plate is situated between the cladding metal plate and the second intermediate plate and the second intermediate plate is situated between the first intermediate plate and the base metal plate, hot rolling the explosive bonded titanium clad steel plate, explosive bonding the same material of an outer layer of the titanium clad steel plate on the surface of said outer layer, and then hot rolling the explosive bonded titanium clad steel plate.
Claim 8
Independent Claim
33 words
The method for manufacturing a titanium clad steel plate according to any one of claims 1 and 2, wherein said explosive bonding of the metal plates to one another is carried out simultaneously.
Claim 9
Independent Claim
35 words
The method for manufacturing a titanium clad steel plate according to any one of claims 1 and 2, wherein said explosive bonding of the metal plates to one another is carried out in successive steps.
Claim 10
Dependent Claim
28 words
The titanium clad steel plate of any one of claims 3 and 4, wherein said explosive bonding of the metal plates to one another is carried out simultaneously.
Claim 11
Dependent Claim
30 words
The titanium clad steel plate of any one of claims 3 and 4, wherein said explosive bonding of the metal plates to one another is carried out in successive steps.
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) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |