US3589430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process parameters for continuous melting-casting and rolling of copper rod
Assignee: JACK E SCHMIDT
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Filing: 1969-10-07
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Granted: 1971-06-29
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Expires: 1989-10-07
Abstract
Abstract A method is described for the continuous production of copper rod in which copper is continuously melted, continuously cast, conditioned and hot-worked into rod form without any intermediate reheating. The essential steps include control of the melt temperature, oxygen content, solidification point, cast billit temperature and hot-rolling temperature.
Inventors
- 👤 Henry Barrow
- 👤 Jack E Schmidt
- 👤 Robert E Fromson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:54
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0602; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49989; Y10T29/49991
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
The method of claim 1 in which the continuously cast bar is conditioned prior to the commencement of hot working.
Claim 2
Dependent Claim
35 words
The method of claim 1 in which the temperature of the as-cast bar at its point of removal from the rotary mold is maintained within the range between about 1,700* F. and about 1,750* F.
Claim 3
Dependent Claim
23 words
The method of claim 1 in which the oxygen content is maintained within the range between 0.035 percent and 0.040 percent by weight.
Claim 4
Dependent Claim
179 words
In the method of producing copper rod in which the copper is continuously melted, continuously cast in a rotary mold, conditioned and hot-worked into rod form without any intermediate reheating, the improvement of steps comprising, controlling the temperature of the molten copper at its point of entry into the rotary mold continuous casting machine to a temperature within the range between about 2,025* F. and about 2,050* F. while also maintaining the oxygen content of the molten metal to a value within the range between about 0.035 percent and about 0.040 percent by weight, controlling the speed of rotation mold to complete solidification of the cast bar before the bar reaches the pouring level of the molten metal while maintaining the temperature of the solidified bar within the range between about 1,700* F. and 1,750* F. at the point of release of the solidified bar from the rotary mold, conditioning the bar and commencing hot working the bar without any intermediate reheating when the bar is at a temperature within the range between 1,600* F. and about 1,625* F.
References Cited (Backward Citations)
US3279000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |