WO2023242613A1 - Device and method for cooling rolls used for rolling in a highly turbulent environment - Google Patents
Device and method for cooling rolls used for rolling in a highly turbulent environment Download PDFInfo
- Publication number
- WO2023242613A1 WO2023242613A1 PCT/IB2022/055437 IB2022055437W WO2023242613A1 WO 2023242613 A1 WO2023242613 A1 WO 2023242613A1 IB 2022055437 W IB2022055437 W IB 2022055437W WO 2023242613 A1 WO2023242613 A1 WO 2023242613A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- work roll
- cooling
- removable plate
- coolant
- rolling stand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
Definitions
- the present invention relates to a device and a method for cooling work rolls. This device permits to easily obtain satisfying cooling condition for any work roll diameter.
- thermomechanical deformation Due to thermomechanical deformation, a thermomechanical fatigue reducing the lifespan of the work rolls and lowering the surface quality of the rolled strip is engendered.
- Patent EP 2 114 584 Bl discloses a rolling stand 1 for metallic products comprising a pair of work rolls (2, 2’), a pair of back-up rolls (3, 3’), and a pair of water pillow cooling device (4, 4’) comprising a plurality of nozzles able to spray cooling jets (5) under pressure on at least one of said work roll.
- the cooling device has a concave and cylindrical shape facing the work roll which comprises said nozzles.
- the nozzles are located at a short distance, between 5 and 200 mm, from the work rolls.
- such a system When in use, such a system permits to create a liquid cushion, between the nozzles and the work roll, having a highly turbulent state and thus improving the cooling of the work roll.
- the gap between the work roll and the nozzles should be greater in direction of the back-up roll, i.e. away from the product being rolled.
- the work rolls tend to deteriorate while in use. For example, their rugosity can be increased, their curvature and diameter can deviate from the aimed one. All those changes lead to marks and defects on the surface of the metallic rolled product and flatness defects. This is why the work rolls are periodically dismantled and grinded to get the desired properties and shape. Unfortunately, the grinding leads to a reduction of the work roll diameters and thus influence the geometry gap, reducing the cooling performance and the pass line.
- the cooling device in EP 2 114 584 despite improving the cooling capability compared to a sprayed coolant, is unable to keep an optimal water cushion in a turbulent state, e.g. an optimal gap.
- the gap is the space between the work roll (2, 2’) and the cooling device (4, 4’).
- the work roll is new, as illustrated in Figure 2A, there is a gap from 5 to 200 mm.
- the gap is greater than 200 mm especially on the upper portion of the cooling device, as illustrated in Figure 2B.
- the gap condition is not optimal.
- the gap between the cooling box and the work roll should not exceed 200 mm and should increase in the direction of the backup roll.
- the purpose of this invention is to solve the aforementioned problems.
- This object is achieved by providing an equipment according to claim 1.
- the equipment can also comprise any characteristics of the claims 2 to 8.
- This object is achieved by a method according to claims 9 to 11.
- Figure 1 exhibits an embodiment of a rolling stand using a cooling device as known in the prior art.
- Figure 2 exhibits the gap variations present in the embodiments of Figure 1 due to a variation of the work roll diameter.
- Figure 3 illustrates an embodiment of the present invention.
- the invention relates to a rolling stand 11 for metallic products comprising
- At least one water pillow cooling device (14, 14’) able to project a plurality of cooling jets under pressure on at least one of said work roll
- a water pillow cooling device consists in a box connected through a feeding pipe to a coolant container and to a pump (not represented).
- Said coolant can, for example, be water or an emulsion of water and oil stabilised or not with surfactants.
- said cooling device comprises side plates. Those sides plates ease the formation of a turbulent coolant cushion by reducing the flow of coolant exits by the sides. Similar side plates are disclosed in EP 2 114 584.
- the cooling device can comprise scraper nozzles as described in WO2008149195.
- a mechanical scraper is a device which is in contact with the roll and mechanically blocks the flow of the cooling fluid. This scraper is closing the passage for the cooling fluid coming from the roll cooling device, avoiding the fluid to come into contact with the metallic product, which could be detrimental for said product.
- the purpose of the removable plate is to allow the formation of a coolant cushion, between the removable plate and the work roll, in a turbulent state.
- a removable plate satisfying the gap width and the gap increase in direction of the back-up roll can be used.
- the removable plate can be replaced by a removable plate having a smaller curvature.
- the curvature of the removable plate should be greater than the curvature of the work roll so as to have a gap being constant or increasing when moving in direction of the back-up roll, i.e. when moving away from the product being rolled, and also allowing to have a gap between said removable plate and said upper work roll from 5 to 200 mm.
- the removable plate is preferably attached to the cooling device.
- the removable plate is attached to the cooling head via any means such as screws or nuts and bolts.
- the water pillow is optimal only for a narrow range of work rolls diameter.
- the object of the present invention permits to form a coolant cushion having an optimal turbulent state for a wide range of work rolls diameters by using an appropriate removable plate.
- said at least one water pillow cooling device (14, 14’) comprises a plurality of cooling nozzles able to spray cooling jet.
- the cooling nozzles have an orientation perpendicular to the work roll surface for nozzles far from the roll bite and tangentially for nozzles closer to the roll bite.
- the cooling nozzles can have various section shapes and/ or sizes. Preferably, they are disposed in parallel rows, each row being laterally shifted from the adjacent rows, so as to create a quincunx disposition.
- the nozzles can also be replaced by transversal slits extending along all or part of the cooling device, parallel to the ground, generating flat jets.
- the exits of said nozzles are arranged along a curved surface, which curvature is greater than the radius of said work roll.
- the curvature of said removable plate (15, 15’) is smaller than the curvature of the curved surface of said nozzles.
- said removable plate comprises a metal layer and a protective layer preventing corrosion.
- said metal layer is made of stainless steel or of aluminium.
- said protective layer preventing corrosion comprises silicon and/ or polypropylene and/ or polytetrafluoroethylene.
- said metal layer is a stainless-steel layer and said protective layer is a silicon layer. The protective layer preventing corrosion faces the work roll while the metal layer faces the cooling device.
- said water pillow cooling device able to spray a plurality of cooling jets are able to spray from 100 to 700 m 3 .h of coolant per square meter of work roll surface and at a pressure from 0.5 to 6 bar.
- said water pillow cooling device able to spray a plurality of cooling jets are able to spray from 300 to 700 m 3 .h of coolant per square meter of work roll surface and at a pressure from 2 to 6 bar.
- the invention also relates to a cooling method for cooling a work roll in an installation as previously described comprising the step of spraying a coolant by means of said cooling device towards said work roll producing a coolant pillow in a highly turbulent state in thegap between said work roll surface and said removable plate.
- said coolant is essentially water.
- said coolant is sprayed at a rate from 100 to 600 m 3 .h per square meter of work roll surface and at pressure from 0.5 to 6 bar. Even more preferably, said coolant is sprayed at a rate from 300 to 600 m 3 .h per square meter of work roll surface and at pressure from 2 to 6 bar.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a rolling stand for metallic products comprising - at least one pair of work rolls, - at least a pair of back-up rolls, - at least one water pillow cooling device able to project a plurality of cooling jets under pressure on at least one of said work roll, - a removable plate - placed between said cooling device and said work roll, - being concave and curved with a curvature such that a gap between said removable plate and said upper work roll is constant or increases when moving in direction of the back-up roll and such that said gap is from 5 to 200 mm, - and being holed such that said cooling jets can pass through said removable plate.
Description
DEVICE AND METHOD FOR COOLING ROLLS USED FOR ROLLING IN A HIGHLY TURBULENT ENVIRONMENT
The present invention relates to a device and a method for cooling work rolls. This device permits to easily obtain satisfying cooling condition for any work roll diameter.
During the hot rolling of a metallic product, a coolant is sprayed on the work rolls to limit the thermal dilation inducing flatness defects and to prevent excessive roll degradation and strip defect. Due to thermomechanical deformation, a thermomechanical fatigue reducing the lifespan of the work rolls and lowering the surface quality of the rolled strip is engendered.
Patent EP 2 114 584 Bl, as illustrated in Figure 1, discloses a rolling stand 1 for metallic products comprising a pair of work rolls (2, 2’), a pair of back-up rolls (3, 3’), and a pair of water pillow cooling device (4, 4’) comprising a plurality of nozzles able to spray cooling jets (5) under pressure on at least one of said work roll. The cooling device has a concave and cylindrical shape facing the work roll which comprises said nozzles. The nozzles are located at a short distance, between 5 and 200 mm, from the work rolls.
When in use, such a system permits to create a liquid cushion, between the nozzles and the work roll, having a highly turbulent state and thus improving the cooling of the work roll.
In order to correctly evacuate the water and renew the coolant in contact with the work roll, the gap between the work roll and the nozzles should be greater in direction of the back-up roll, i.e. away from the product being rolled.
The work rolls tend to deteriorate while in use. For example, their rugosity can be increased, their curvature and diameter can deviate from the aimed one. All those changes lead to marks and defects on the surface of the metallic rolled product and flatness defects. This is why the work rolls are periodically dismantled and grinded to get the desired properties and shape.
Unfortunately, the grinding leads to a reduction of the work roll diameters and thus influence the geometry gap, reducing the cooling performance and the pass line.
The cooling device in EP 2 114 584, despite improving the cooling capability compared to a sprayed coolant, is unable to keep an optimal water cushion in a turbulent state, e.g. an optimal gap. The gap is the space between the work roll (2, 2’) and the cooling device (4, 4’). When the work roll is new, as illustrated in Figure 2A, there is a gap from 5 to 200 mm. However, after grinding leading to a reduced work roll diameter, the gap is greater than 200 mm especially on the upper portion of the cooling device, as illustrated in Figure 2B.
Consequently, the same cooling head is used on rolling stands having different work roll diameters, the gap condition is not optimal. As a reminder, the gap between the cooling box and the work roll should not exceed 200 mm and should increase in the direction of the backup roll.
There is a need to find a way to enhance the flexibility of a cooling head, especially with regards to the variation of the work roll diameters, permitting to have a water cushion in a turbulent state for various work roll diameter.
The purpose of this invention is to solve the aforementioned problems. This object is achieved by providing an equipment according to claim 1. The equipment can also comprise any characteristics of the claims 2 to 8. This object is achieved by a method according to claims 9 to 11.
Other characteristics and advantages of the invention will become apparent from the following detailed description of the invention.
To illustrate the invention, various embodiment of non-limiting example will be described, particularly with reference to the following figures:
Figure 1 exhibits an embodiment of a rolling stand using a cooling device as known in the prior art.
Figure 2 exhibits the gap variations present in the embodiments of Figure 1 due to a variation of the work roll diameter.
Figure 3 illustrates an embodiment of the present invention.
In the following specification, the expressions « downstream » and « upstream » are to be understood relative to the path of the metal strip.
As illustrated in Figure 3, the invention relates to a rolling stand 11 for metallic products comprising
- a pair of work rolls (12, 12(),
- a pair of back-up rolls (13, 13’),
- at least one water pillow cooling device (14, 14’) able to project a plurality of cooling jets under pressure on at least one of said work roll,
- a removable plate (15, 155)
- placed between said cooling device (14, 14’) and said work roll (12, 12’),
- being concave and with a curvature such that a gap between said removable plate and said work roll is constant or increases when moving in direction of the back-up roll and such that said gap is from 5 to 200 mm and
- being holed such that said cooling jets can pass through said removable plate.
A water pillow cooling device consists in a box connected through a feeding pipe to a coolant container and to a pump (not represented). Said coolant can, for example, be water or an emulsion of water and oil stabilised or not with surfactants.
Preferably, said cooling device comprises side plates. Those sides plates ease the formation of a turbulent coolant cushion by reducing the flow of coolant exits by the sides. Similar side plates are disclosed in EP 2 114 584.
The cooling device can comprise scraper nozzles as described in WO2008149195. A mechanical scraper is a device which is in contact with the roll and mechanically blocks the flow of the cooling fluid. This scraper is closing the passage for the cooling fluid coming from the roll cooling device, avoiding the fluid to come into contact with the metallic product, which could be detrimental for said product.
The purpose of the removable plate is to allow the formation of a coolant cushion, between the removable plate and the work roll, in a turbulent state. Depending on the work roll diameter, a
removable plate satisfying the gap width and the gap increase in direction of the back-up roll can be used.
For example, after a grinding operation where the work roll diameter has been reduced, the removable plate can be replaced by a removable plate having a smaller curvature. However, the curvature of the removable plate should be greater than the curvature of the work roll so as to have a gap being constant or increasing when moving in direction of the back-up roll, i.e. when moving away from the product being rolled, and also allowing to have a gap between said removable plate and said upper work roll from 5 to 200 mm.
The removable plate is preferably attached to the cooling device. Preferably, the removable plate is attached to the cooling head via any means such as screws or nuts and bolts.
In a cooling system of the prior art, as disclosed in EP 2 114 584, the water pillow is optimal only for a narrow range of work rolls diameter. On the contrary, the object of the present invention permits to form a coolant cushion having an optimal turbulent state for a wide range of work rolls diameters by using an appropriate removable plate.
Preferably, said at least one water pillow cooling device (14, 14’) comprises a plurality of cooling nozzles able to spray cooling jet. Preferably, the cooling nozzles have an orientation perpendicular to the work roll surface for nozzles far from the roll bite and tangentially for nozzles closer to the roll bite.
Preferably, the cooling nozzles can have various section shapes and/ or sizes. Preferably, they are disposed in parallel rows, each row being laterally shifted from the adjacent rows, so as to create a quincunx disposition. The nozzles can also be replaced by transversal slits extending along all or part of the cooling device, parallel to the ground, generating flat jets.
Preferably, the exits of said nozzles are arranged along a curved surface, which curvature is greater than the radius of said work roll.
Preferably, the curvature of said removable plate (15, 15’) is smaller than the curvature of the curved surface of said nozzles.
Preferably, said removable plate comprises a metal layer and a protective layer preventing corrosion. Even more preferably, said metal layer is made of stainless steel or of aluminium. Even more preferably, said protective layer preventing corrosion comprises silicon and/ or polypropylene and/ or polytetrafluoroethylene. Preferably, said metal layer is a stainless-steel layer and said protective layer is a silicon layer. The protective layer preventing corrosion faces the work roll while the metal layer faces the cooling device.
Preferably, said water pillow cooling device able to spray a plurality of cooling jets are able to spray from 100 to 700 m3.h of coolant per square meter of work roll surface and at a pressure from 0.5 to 6 bar. Those features ease the formation of a turbulent coolant cushion along the upper roll width and thus improve the cooling of the upper work roll. Even more preferably, said water pillow cooling device able to spray a plurality of cooling jets are able to spray from 300 to 700 m3.h of coolant per square meter of work roll surface and at a pressure from 2 to 6 bar.
The invention also relates to a cooling method for cooling a work roll in an installation as previously described comprising the step of spraying a coolant by means of said cooling device towards said work roll producing a coolant pillow in a highly turbulent state in thegap between said work roll surface and said removable plate.
Preferably, said coolant is essentially water.
Preferably, said coolant is sprayed at a rate from 100 to 600 m3.h per square meter of work roll surface and at pressure from 0.5 to 6 bar. Even more preferably, said coolant is sprayed at a rate from 300 to 600 m3.h per square meter of work roll surface and at pressure from 2 to 6 bar.
Claims
CLAIMS A rolling stand (11) for metallic products comprising
- a pair of work rolls (12, 12’),
- a pair of back-up rolls (13, 13’),
- at least one water pillow cooling device (14, 14’) able to spray a plurality of cooling jets under pressure on at least one of said work roll,
- a removable plate (15, IS5)
- placed between said water pillow cooling device and said work roll,
- being concave and with a curvature such that a gap between said removable plate and said work roll is constant or increases when moving in direction of the back-up roll and such that said gap is from 5 to 200 mm and
- being holed such that said cooling jets can pass through said removable plate. A rolling stand according to claim 1, wherein said at least one water pillow cooling device (14, 14’) comprises a plurality of nozzles able to spray cooling jet. A rolling stand according to claim 2, wherein the exits of said nozzles are arranged along a curved surface, which curvature is greater than the radius of said work roll. A rolling stand according to claim 3, wherein the curvature of said removable plate (15, 15’) is smaller than the curvature of the curved surface of said nozzles. A rolling stand according to any one of the claims 1 to 4, wherein said removable plate comprises a metal layer and a protective layer preventing corrosion. A rolling stand according to claim 5, wherein said metal layer is a stainless-steel layer and said protective layer is a silicon layer. A rolling stand according to any one of the claims 1 to 6, wherein said water pillow cooling device able to spray a plurality of cooling jets are able to spray from 100 to 700 m3.h of coolant per square meter of work roll surface and at a pressure from 0.5 to 6 bar.
A rolling stand according to claim 7, wherein said water pillow cooling device able to spray a plurality of cooling jets are able to spray from 300 to 700 m3.h of coolant per square meter of work roll surface and at a pressure from 2 to 6 bar. A cooling method for cooling a work roll in an installation according to any one of claims 1 to 8 comprising the step of spraying a coolant by means of said cooling device towards said work roll, producing a coolant pillow in a highly turbulent state in the gap between said work roll surface and said removable plate. A cooling method according to claim 9, wherein said coolant is sprayed at a rate from 100 to 600 m3.h per square meter of work roll surface and at pressure from 0.5 to 6 bar. A cooling method according to claim 10, wherein said coolant is sprayed at a rate from 300 to 600 m3.h per square meter of work roll surface and at pressure from 2 to 6 bar.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2022/055437 WO2023242613A1 (en) | 2022-06-13 | 2022-06-13 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| CA3256251A CA3256251A1 (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| CN202380043312.8A CN119317495A (en) | 2022-06-13 | 2023-06-12 | Apparatus and method for cooling rolls used in rolling in a highly turbulent environment |
| EP23734062.5A EP4536417A1 (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| US18/869,571 US20250375804A1 (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| PCT/IB2023/056036 WO2023242708A1 (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| KR1020247039068A KR20250006223A (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used in rolling in high-temperature environments |
| JP2024569535A JP2025518689A (en) | 2022-06-13 | 2023-06-12 | Apparatus and method for cooling rolls used in rolling in highly turbulent environments |
| ZA2024/07295A ZA202407295B (en) | 2022-06-13 | 2024-09-25 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| MX2024015545A MX2024015545A (en) | 2022-06-13 | 2024-12-13 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2022/055437 WO2023242613A1 (en) | 2022-06-13 | 2022-06-13 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023242613A1 true WO2023242613A1 (en) | 2023-12-21 |
Family
ID=82358588
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2022/055437 Ceased WO2023242613A1 (en) | 2022-06-13 | 2022-06-13 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| PCT/IB2023/056036 Ceased WO2023242708A1 (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2023/056036 Ceased WO2023242708A1 (en) | 2022-06-13 | 2023-06-12 | Device and method for cooling rolls used for rolling in a highly turbulent environment |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20250375804A1 (en) |
| EP (1) | EP4536417A1 (en) |
| JP (1) | JP2025518689A (en) |
| KR (1) | KR20250006223A (en) |
| CN (1) | CN119317495A (en) |
| CA (1) | CA3256251A1 (en) |
| MX (1) | MX2024015545A (en) |
| WO (2) | WO2023242613A1 (en) |
| ZA (1) | ZA202407295B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109508A (en) * | 1979-02-16 | 1980-08-23 | Nippon Steel Corp | Cooling method for roll in hot rolling |
| WO2008149195A1 (en) | 2007-06-04 | 2008-12-11 | Arcelormittal France | Rolling mill with cooling device and rolling process |
| EP2114584A1 (en) | 2007-02-09 | 2009-11-11 | Centre De Recherches Metallurgiques ASBL - Centrum Voor Research In De Metallurgie vzw | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| DE102009053073A1 (en) * | 2009-03-03 | 2010-09-09 | Sms Siemag Aktiengesellschaft | Method and cooling device for cooling the rolls of a roll stand |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318408A (en) * | 1989-06-13 | 1991-01-28 | Sumitomo Metal Ind Ltd | Rolling roll cooling system |
| JP2568693B2 (en) * | 1989-06-20 | 1997-01-08 | 住友金属工業株式会社 | Rolling roll cooling method |
| JPH11277113A (en) * | 1998-03-27 | 1999-10-12 | Kawasaki Steel Corp | Rolling roll cooling device |
| KR100361754B1 (en) * | 1998-12-18 | 2003-02-19 | 주식회사 포스코 | Rolling roll cooling method and apparatus_ |
-
2022
- 2022-06-13 WO PCT/IB2022/055437 patent/WO2023242613A1/en not_active Ceased
-
2023
- 2023-06-12 CN CN202380043312.8A patent/CN119317495A/en active Pending
- 2023-06-12 KR KR1020247039068A patent/KR20250006223A/en active Pending
- 2023-06-12 CA CA3256251A patent/CA3256251A1/en active Pending
- 2023-06-12 JP JP2024569535A patent/JP2025518689A/en active Pending
- 2023-06-12 EP EP23734062.5A patent/EP4536417A1/en active Pending
- 2023-06-12 US US18/869,571 patent/US20250375804A1/en active Pending
- 2023-06-12 WO PCT/IB2023/056036 patent/WO2023242708A1/en not_active Ceased
-
2024
- 2024-09-25 ZA ZA2024/07295A patent/ZA202407295B/en unknown
- 2024-12-13 MX MX2024015545A patent/MX2024015545A/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109508A (en) * | 1979-02-16 | 1980-08-23 | Nippon Steel Corp | Cooling method for roll in hot rolling |
| EP2114584A1 (en) | 2007-02-09 | 2009-11-11 | Centre De Recherches Metallurgiques ASBL - Centrum Voor Research In De Metallurgie vzw | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| US20100089112A1 (en) * | 2007-02-09 | 2010-04-15 | Centre De Recherches Metallurgiques Asbl | Device and Method for Cooling Rollers Used for Rolling in a Highly Turbulent Environment |
| EP2114584B1 (en) | 2007-02-09 | 2011-09-14 | Centre De Recherches Metallurgiques ASBL - Centrum Voor Research In De Metallurgie vzw | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| WO2008149195A1 (en) | 2007-06-04 | 2008-12-11 | Arcelormittal France | Rolling mill with cooling device and rolling process |
| DE102009053073A1 (en) * | 2009-03-03 | 2010-09-09 | Sms Siemag Aktiengesellschaft | Method and cooling device for cooling the rolls of a roll stand |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025518689A (en) | 2025-06-19 |
| CN119317495A (en) | 2025-01-14 |
| ZA202407295B (en) | 2025-10-29 |
| EP4536417A1 (en) | 2025-04-16 |
| WO2023242708A1 (en) | 2023-12-21 |
| US20250375804A1 (en) | 2025-12-11 |
| MX2024015545A (en) | 2025-02-10 |
| KR20250006223A (en) | 2025-01-10 |
| CA3256251A1 (en) | 2023-12-21 |
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