US3766763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous rolled rod direct cooling method and apparatus
Assignee: Southwire Co LLC
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Filing: 1971-01-13
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Granted: 1973-10-23
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Expires: 1991-01-13
Abstract
Abstract This disclosure relates to a fluid cooling and lubricating system for metal rod being rolled down from a continuously cast bar and includes a multiple pressure arrangement wherein high pressure fluid is utilized to cool and descale the rod as well as the hot-forming rolls by spraying and wherein low pressure fluid is additionally utilized for cooling and lubrication by flooding roll stand entrance and exit rod-guide housings. Direct and controlled spray cooling of the hot-formed rod is obtained by wide-angled nozzles having solenoid-operated valves responsive to the exit temperature of the rod which is monitored by a photopyrometer whereby the volume of coolant is controlled to obtain a uniform finishing temperature of the rod.
Inventors
- 👤 D Cofer
- 👤 F Mitchell
- 👤 G Ward
- 👤 M Kozak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:34
CPC Classifications
B; B21; B21B; B21B3/00; B21B3/003; B21B45/00; B21B45/02; B21B1/00; B21B1/16; B21B1/18; B21B2003/001; B21B2003/005; B21B28/00; B21B28/02; B21B28/04; B21B37/00; B21B37/74; B21B45/04; B21B45/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
104 words
In a rolling mill for rolling a cast metal bar selected from the group of copper, aluminum, and steel into an elongated metal rod, said rolling mill possessing individual roll stands located between an entrance and an exit to said mill, the improvement comprising gradual cooling means for progressively increasing the degree of cooling between the entrance to the mill and the exit to the mill, said gradual cooling means comprising additional means for progressively increasing the volume of flow of a cooling and lubricating fluid between the entrance and the exit to the mill, said additional means being responsive to temperature sensing means.
Claim 2
Dependent Claim
104 words
In a rolling mill for rolling a cast metal bar selected from the group of copper, aluminum, and steel into an elongated metal rod, said rolling mill possessing individual roll stands located between an entrance and an exit to said mill, the improvement comprising gradual cooling means for progressively increasing the degree of cooling between the entrance to the mill and the exit to the mill, said gradual cooling means comprising additional means for progressively increasing the volume of flow of a cooling and lubricating fluid between the entrance and the exit to the mill, said additional means being responsive to temperature sensing means.
Claim 3
Dependent Claim
14 words
The improvement of claim 1 in which the temperature sensing means comprises a photopyrometer.
Claim 4
Dependent Claim
51 words
The invention of claim 1 in which said fluid pressure volume varying means comprises a photopyrometer to sense the temperature of the rod, electromagnetic solenoid valves associated with each roll stand for controlling the flow of fluid to that particular roll stand, and means connecting said photopyrometer to said solenoid valves.
Claim 5
Dependent Claim
140 words
In a rolling mill for rolling a cast metal bar selected from the group of copper, aluminum, and steel into an elongated metal rod, said rolling mill possessing a plurality of individual roll stands having entrances and exits and a fluid cooling and lubricating system, the improvement comprising means for increasing and decreasing the pressure and volume of flow of fluid in response to a corresponding increase or decrease in the temperature of the rod as measured at the exit of the last stand by a temperature sensing means, said means for increasing and decreasing the pressure and volume of flow of fluid being constructed in such a manner that the volume of flow of fluid for any one temperature is least at the entrance to the rolling mill and gets progressively greater towards the exit to the rolling mill.
Claim 6
Dependent Claim
140 words
In a rolling mill for rolling a cast metal bar selected from the group of copper, aluminum, and steel into an elongated metal rod, said rolling mill possessing a plurality of individual roll stands having entrances and exits and a fluid cooling and lubricating system, the improvement comprising means for increasing and decreasing the pressure and volume of flow of fluid in response to a corresponding increase or decrease in the temperature of the rod as measured at the exit of the last stand by a temperature sensing means, said means for increasing and decreasing the pressure and volume of flow of fluid being constructed in such a manner that the volume of flow of fluid for any one temperature is least at the entrance to the rolling mill and gets progressively greater towards the exit to the rolling mill.
Claim 7
Dependent Claim
31 words
The improvement of claim 1 and further including wide angle spray nozzles for directing a flow of fluid directly onto the rod after the rod has passed through each roll stand.
Claim 8
Independent Claim
130 words
A method of producing copper rod which, when drawn into wire using prior art drawing techniques, will have a lower annealing temperature comprising the steps of: rolling continuously cast copper bar down into copper rod in successive steps, measuring increases and decreases in copper rod temperature after the last of said successive steps, applying a cooling and lubricating fluid to the copper rod during rolling, providing a volume of flow of said fluid for any given rod temperature which volume is least during the beginning of the sucCessive rolling steps and which volume of flow progressively increases towards the last of said successive rolling steps, and increasing and decreasing the pressure and volume of flow of said fluid in response to a correspondingly measured increase or decrease in rod temperature.
Claim 9
Independent Claim
130 words
A method of producing copper rod which, when drawn into wire using prior art drawing techniques, will have a lower annealing temperature comprising the steps of: rolling continuously cast copper bar down into copper rod in successive steps, measuring increases and decreases in copper rod temperature after the last of said successive steps, applying a cooling and lubricating fluid to the copper rod during rolling, providing a volume of flow of said fluid for any given rod temperature which volume is least during the beginning of the sucCessive rolling steps and which volume of flow progressively increases towards the last of said successive rolling steps, and increasing and decreasing the pressure and volume of flow of said fluid in response to a correspondingly measured increase or decrease in rod temperature.
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |