US4197902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molds for continuous casting of metals
Assignee: KM Kabelmetal AG
•
Filing: 1977-07-28
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Granted: 1980-04-15
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Expires: 1997-07-28
Abstract
Abstract A metal mold employed for the casting of metals, preferably steel, has a wear resistant layer on the casting surface thereof formed of a different metal having solid particles dispersed therein. A preferred mold is formed of copper or alloy thereof having an electrolytically deposited nickel layer with silicon carbide particles dispersed therein.
Inventors
- 👤 Wolfgang VON Jan
- 👤 Horst Gravemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:33
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/059
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
In a mold for continuous casting of high melting temperature metals, which is formed of a copper or copper alloy mold body of high thermal conductivity and a wear resistant layer of a different metal forming the casting surface of the mold, the improvement comprising: said wear resistant layer being nickel having dispersed therein solid particles of silicon carbide of a particle size from 5 to 50 μm for increasing the wear resistance of such nickel layer, said nickel layer having a thickness of 0.1 to 1.5 mm and being formed by electrolytic deposition to provide a nonporous casting surface securely bonded to said mold body, whereby a minimum reduction in thermal conductivity through the mold as a result of the inclusion of the high wear resistance layer is achieved concurrent with an increase in the wear resistance of the casting surface.
Claim 2
Dependent Claim
142 words
In a mold for continuous casting of high melting temperature metals, which is formed of a copper or copper alloy mold body of high thermal conductivity and a wear resistant layer of a different metal forming the casting surface of the mold, the improvement comprising: said wear resistant layer being nickel having dispersed therein solid particles of silicon carbide of a particle size from 5 to 50 μm for increasing the wear resistance of such nickel layer, said nickel layer having a thickness of 0.1 to 1.5 mm and being formed by electrolytic deposition to provide a nonporous casting surface securely bonded to said mold body, whereby a minimum reduction in thermal conductivity through the mold as a result of the inclusion of the high wear resistance layer is achieved concurrent with an increase in the wear resistance of the casting surface.
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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) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |