US4144993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a continuous casting mold
Assignee: Mishima Kosan Co Ltd
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Filing: 1977-12-15
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Granted: 1979-03-20
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Expires: 1997-12-15
Abstract
Abstract In a continuous casting mold of a copper alloy havng a nickel layer plated on the mold cavity surface, wherein an alloy layer of nickel containing one of Co, Fe and Mn and 3-5 mm thickness replaces the Ni layer.
Inventors
- 👤 Tetsuji Ushio
- 👤 Satoru Tatsuguchi
- 👤 Hoshiro Tani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:03
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/059
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
A method of producing continuous casting mold comprising the steps of: forming an alloy layer consisting mainly of nickel and containing at least one member selected from the group consisting of iron and manganese on a copper or copper alloy mold cavity surface; and heat-treating the mold.
Claim 2
Independent Claim
47 words
A method of producing continuous casting mold comprising the steps of: forming an alloy layer consisting mainly of nickel and containing at least one member selected from the group consisting of iron and manganese on a copper or copper alloy mold cavity surface; and heat-treating the mold.
Claim 3
Dependent Claim
20 words
A method according to claim 1 in which said copper alloy mold is formed by a precipitation hardenable copper alloy.
Claim 4
Dependent Claim
20 words
A method according to claim 1, wherein the mold is heat-treated at a temperature between 300° C. and 500° C.
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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |