US3604237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work rolls and cooling method thereof
Assignee: Individual
•
Filing: 1968-04-01
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Granted: 1971-09-14
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Expires: 1988-04-01
Abstract
Abstract A method of cooling work rolls in a rolling mill is comprised of forming an axially extending passageway through the work roll and disposing a cooling medium within the passageway for limiting the temperature differences along the surface of the work roll. The cooling medium can be a solid member having a higher rate of thermal conductivity than the material of the work roll or a fluid. The flow path of the fluid cooling medium can be arranged for selectively contacting only certain portions of the roll member within the axially extending passageway.
Inventors
- 👤 Takao Kawanami
- 👤 Toyokazu Saito
- 👤 Hiro Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:02
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/06; B21B27/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
382 words
A work roll for use in a temper rolling mill for rolling steel sheet material and the like comprising an axially extending cylindrically shaped member having a pair of axially spaced circumferentially extending end parts arranged to be positioned in frictional engagement within work roll bearings and a circumferentially extending intermediate part disposed between said end parts and arranged to contact the steel sheet material passing over the work roll, said member having a bore extending in the axial direction therethrough from one said end part to the other said end part, the bore in said member being closed at one end within the other said end part and extending for substantially the entire axial length of said member from one said end part to the other said end part, conduit means for conveying a cooling fluid through said bore and out of contact relationship with the surface of said bore and for discharging the cooling fluid into said bore into direct contact with the material forming said member which contacts the steel sheet material for maintaining the temperature of the surface portions of said member within a range of about 10* C., said conduit means comprising a first conduit extending through and centrally positioned within said bore in spaced relationship with the surface of said bore for forming an annular space therebetween for supplying a cooling fluid from said first conduit into the annular space for passage over the surfaces of said member within said bore so that the cooling fluid is in direct contact with the material of said member which contacts the steel sheet material passing over the work roll, and a second conduit coaxially arranged within and spaced inwardly from said first conduit forming an annular space therebetween, said second conduit having a first end and a second end, the first end of said second conduit located within the bore spaced outwardly from the end of said first conduit adjacent to closed end of the bore, and the second end of the said second conduit disposed outwardly from said bore whereby cooling medium flows into the bore through said first conduit and after its passage therethrough to the closed end of the bore is admitted into said second conduit for passage therethrough and eventual discharge from said member.
Claim 2
Dependent Claim
382 words
A work roll for use in a temper rolling mill for rolling steel sheet material and the like comprising an axially extending cylindrically shaped member having a pair of axially spaced circumferentially extending end parts arranged to be positioned in frictional engagement within work roll bearings and a circumferentially extending intermediate part disposed between said end parts and arranged to contact the steel sheet material passing over the work roll, said member having a bore extending in the axial direction therethrough from one said end part to the other said end part, the bore in said member being closed at one end within the other said end part and extending for substantially the entire axial length of said member from one said end part to the other said end part, conduit means for conveying a cooling fluid through said bore and out of contact relationship with the surface of said bore and for discharging the cooling fluid into said bore into direct contact with the material forming said member which contacts the steel sheet material for maintaining the temperature of the surface portions of said member within a range of about 10* C., said conduit means comprising a first conduit extending through and centrally positioned within said bore in spaced relationship with the surface of said bore for forming an annular space therebetween for supplying a cooling fluid from said first conduit into the annular space for passage over the surfaces of said member within said bore so that the cooling fluid is in direct contact with the material of said member which contacts the steel sheet material passing over the work roll, and a second conduit coaxially arranged within and spaced inwardly from said first conduit forming an annular space therebetween, said second conduit having a first end and a second end, the first end of said second conduit located within the bore spaced outwardly from the end of said first conduit adjacent to closed end of the bore, and the second end of the said second conduit disposed outwardly from said bore whereby cooling medium flows into the bore through said first conduit and after its passage therethrough to the closed end of the bore is admitted into said second conduit for passage therethrough and eventual discharge from said member.
Claim 3
Dependent Claim
80 words
A work roll, as set forth in claim 1, wherein transversely arranged pipe sections are secured to and are in communication with the interior surface of said second conduit at one end and extend through the annular space between said second conduit and said first conduit and are secured at the other end into said first conduit for circulating cooling fluid between said second conduit and the annular space located between Said first conduit and the surface of said bore.
Claim 4
Dependent Claim
50 words
A work roll as set forth in claim 2, wherein a plurality of transversely arranged annular-shaped plates are disposed between the outer surface of said first conduit and the surface of said bore at spaced positions therealong for forming a plurality of separated circumferentially extending compartments in the annular space.
Claim 5
Dependent Claim
265 words
A work roll for use in a temper rolling mill for rolling steel sheet material and the like comprising a longitudinally extending cylindrically shaped member having an axially elongated circumferentially extending intermediate portion arranged to contact the steel sheet material and a pair of circumferentially extending end portions on opposite sides of said intermediate portion and arranged to be positioned in frictional engagement with work roll bearings, said member having a bore extending axially therethrough and closed at one said end portion of said member, a conduit for supplying cooling fluid into said bore and disposed centrally therein and extending therethrough in spaced relationship with the surface of the bore for forming an annular space therebetween, said conduit having one end located exteriorally of the bore and the other end located adjacent to and spaced from the closed end of the bore, a joint member secured to said member at the open end of the bore therethrough, said joint member comprising an annular shaped flange disposed about the open end of said bore and secured to one of said end portions of said member, a cylindrical member arranged to be selectively disposed in threaded engagement with the inner surface of the opening in said flange, said cylindrical member spaced outwardly from said conduit and forming an annular space therewith for receiving the cooling fluid flowing outwardly from the annular space in the bore about said conduit, and means for forming a seal between said flange and said cylindrical member to prevent leakage therebetween of the cooling medium flowing within the annular space in said bore.
Claim 6
Dependent Claim
265 words
A work roll for use in a temper rolling mill for rolling steel sheet material and the like comprising a longitudinally extending cylindrically shaped member having an axially elongated circumferentially extending intermediate portion arranged to contact the steel sheet material and a pair of circumferentially extending end portions on opposite sides of said intermediate portion and arranged to be positioned in frictional engagement with work roll bearings, said member having a bore extending axially therethrough and closed at one said end portion of said member, a conduit for supplying cooling fluid into said bore and disposed centrally therein and extending therethrough in spaced relationship with the surface of the bore for forming an annular space therebetween, said conduit having one end located exteriorally of the bore and the other end located adjacent to and spaced from the closed end of the bore, a joint member secured to said member at the open end of the bore therethrough, said joint member comprising an annular shaped flange disposed about the open end of said bore and secured to one of said end portions of said member, a cylindrical member arranged to be selectively disposed in threaded engagement with the inner surface of the opening in said flange, said cylindrical member spaced outwardly from said conduit and forming an annular space therewith for receiving the cooling fluid flowing outwardly from the annular space in the bore about said conduit, and means for forming a seal between said flange and said cylindrical member to prevent leakage therebetween of the cooling medium flowing within the annular space in said bore.
Claim 7
Dependent Claim
98 words
A wall member, as set forth in claim 4, wherein said flange having spaced circumferentially extending threaded sections on the inner surface within its opening, said cylindrical member having similarly arranged spaced threaded sections on its exterior surface for engagement with the threaded sections on said flange, so that by positioning said threaded sections on said cylindrical member between the threaded sections on said flange said cylindrical member can be disposed in threaded engagement with said flange by rotating its threaded sections into engagement with the threaded sections of said flange thereby securing said cylindrical member in place.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |