EP3599036B1 - Cage de laminoir pourvu de dispositif de refroidissement hybride - Google Patents

Cage de laminoir pourvu de dispositif de refroidissement hybride Download PDF

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Publication number
EP3599036B1
EP3599036B1 EP18185862.2A EP18185862A EP3599036B1 EP 3599036 B1 EP3599036 B1 EP 3599036B1 EP 18185862 A EP18185862 A EP 18185862A EP 3599036 B1 EP3599036 B1 EP 3599036B1
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EP
European Patent Office
Prior art keywords
spray
nozzles
flat
roll stand
jet nozzles
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.)
Active
Application number
EP18185862.2A
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German (de)
English (en)
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EP3599036A1 (fr
Inventor
Markus Fischer
Erich Opitz
Lukas PICHLER
Christoph Proell
Alois Seilinger
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Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Filing date
Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP18185862.2A priority Critical patent/EP3599036B1/fr
Priority to CN201980049887.4A priority patent/CN112423905B/zh
Priority to PCT/EP2019/067939 priority patent/WO2020020592A1/fr
Priority to RU2021104618A priority patent/RU2764692C1/ru
Priority to US17/261,205 priority patent/US11559830B2/en
Publication of EP3599036A1 publication Critical patent/EP3599036A1/fr
Application granted granted Critical
Publication of EP3599036B1 publication Critical patent/EP3599036B1/fr
Active legal-status Critical Current
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Classifications

    • 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
    • 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

  • Cooling liquid is guided along the roll surface in an adjustable gap between the surface of a work roll and one of a plurality of arcuate, articulated, movable segments of a cooling shell.
  • the work rolls heat up during the hot rolling of flat rolling stock made of metal - for example steel.
  • the work rolls are cooled for various technological reasons - for example to specifically influence the thermal crowning and to minimize wear. Intensive cooling is therefore necessary in order to withdraw the heat supplied via the flat rolling stock, in particular from the work rolls.
  • Various configurations are known for cooling the work rolls.
  • the upper and the lower work roll are each assigned a water box which is in close contact with the respective work roll on the outlet side of the roll stand.
  • a turbulent water flow is generated by means of the respective water box, by means of which the work rolls are efficiently cooled.
  • the disadvantage of this teaching is that the water tanks have to be positioned very precisely in relation to the work rolls. If the distance is too small, there is a risk of damage to the work rolls and/or the water boxes. If the distance is so large, cooling cannot be performed efficiently.
  • a roll stand is known in which a single cooling beam is arranged on the outlet side of the roll stand.
  • the chilled beam has several rows of spray nozzles, with the rows running in the direction of the width of the rolling stock or run parallel to the work rolls.
  • the spray nozzles in the rows are designed as full jet nozzles.
  • the roll stands have additional elements.
  • One of the additional elements is an upper scraper element, by means of which the coolant applied to the upper work roll on the outlet side is scraped off the upper work roll.
  • the wiping element is required to prevent the coolant from running down onto the flat rolling stock in an uncontrolled manner and affecting its temperature in an uncontrolled manner.
  • a pool of liquid coolant often forms above the upper scraper element. This pool negatively influences the cooling by the flat jet nozzles. The desired cooling of the upper work roll is therefore often difficult to achieve.
  • the object of the present invention is to design a roll stand of the type mentioned at the outset in such a way that a highly efficient and uniform cooling of the upper work roll can be achieved with a simple structure.
  • a roll stand of the type mentioned is designed in that at least some of the lower Spray nozzles - are designed as full jet nozzles - usually all lower spray nozzles.
  • Solid jet nozzles are spray nozzles that emit an essentially straight coolant jet.
  • the coolant jet usually has a circular or almost circular cross-section. The cross-section varies only to a very small extent with the distance from the solid jet nozzle.
  • an opening angle of the discharged coolant jet is at most 5°.
  • Flat jet nozzles on the other hand, have a spray pattern in which the discharged coolant jet expands like a fan. The opening angle of the fan is at least 20°. In practice, it is usually 40° or more.
  • the coolant discharged from a fan jet nozzle thus impinges on the upper work roll substantially in the form of an elongated line.
  • solid jet nozzles Due to the bundled release of the coolant with the same coolant pressure in the respective spray bar, solid jet nozzles generate a significantly higher impact pressure on the work roll than flat jet nozzles.
  • the higher impact pressure not only causes a higher cooling effect. It is of particular importance that the full jet is also able to completely penetrate the pool of coolant that may have formed on the upper scraper element.
  • the roll stand In the simplest case, only the upper and lower spray bars are assigned to the upper work roll on the outlet side. Alternatively, however, it is possible for the roll stand to have at least one middle spray bar. In this case, the at least one middle spray bar is arranged between the upper and the lower spray bar. It extends parallel to the upper work roll and has a plurality of central spray nozzles, by means of which the liquid coolant is sprayed onto the upper work roll.
  • the central spray nozzles of each central spray bar are usually either uniform as flat jet nozzles or uniform as a rule, at least in a central region of the respective central spray bar Full jet nozzles formed.
  • the spray nozzles of both middle spray bars are uniformly designed as flat jet nozzles.
  • the spray nozzles of both middle spray bars are designed uniformly as full jet nozzles.
  • the spray nozzles of a central spray bar are designed uniformly as flat jet nozzles and the spray nozzles of the other central spray bar are designed uniformly as full jet nozzles.
  • An embodiment in which the spray nozzles of one and the same central spray bar are designed partly as flat jet nozzles and partly as full jet nozzles is possible, but not preferred.
  • the top spray bar, middle spray bars and bottom spray bar form a sequence of spray bars viewed from top to bottom.
  • sequence of spray bars for areas of the spray bars that correspond to one another in the width direction of the flat rolling stock, there is preferably only a single change from flat jet nozzles to full jet nozzles.
  • the spray nozzles are designed as full-jet nozzles for a specific central spray bar, the spray nozzles for each additional spray bar located below this central spray bar are preferably designed as full-jet nozzles.
  • the spray nozzles are designed as flat jet nozzles for a specific central spray bar, the spray nozzles are preferably designed as flat jet nozzles for each additional spray bar located above this central spray bar.
  • Flat jet nozzles are usually operated with a relatively high working pressure.
  • the working pressure can be up to 20 bar.
  • Full jet nozzles can be operated with a lower pressure.
  • the coolant supplied to the full jet nozzles is therefore preferably subjected to a first working pressure, and the coolant supplied to the flat jet nozzles is subjected to a second working pressure.
  • the first work pressure is usually smaller than the second working pressure.
  • the first working pressure can be a maximum of 5 bar, while the second working pressure is at least 6 bar.
  • a first working pressure of 1 to 4 bar, in particular 2 to 3 bar, is usual, while the second working pressure is generally between 10 and 20 bar, mostly between 12 and 16 bar.
  • first working pressure of approximately 7 bar and a second working pressure of approximately 8 bar.
  • first working pressure can even be greater than the second working pressure.
  • coolant supplied to the full jet nozzles and the coolant supplied to the flat jet nozzles can be subjected to a uniform working pressure. This working pressure can be up to 10 bar.
  • a flat rolling stock 2 is to be rolled by means of a roll stand 1 .
  • the flat rolling stock 2 can alternatively be a strip or a heavy plate.
  • the flat rolling stock 2 consists of metal, for example steel, aluminum or copper.
  • the roll stand 1 has at least one upper work roll 3 and one lower work roll 4 for rolling the flat rolling stock 2 .
  • the work rolls 3, 4 are those rolls of the roll stand 1 which contact and deform the flat rolling stock 2 directly during rolling. The work rolls 3, 4 thus form between them a roll gap 5, which is traversed by the flat rolled stock 2 in a transport direction x during the rolling of the flat rolled stock 2.
  • the roll stand 1 can be part of a multi-stand rolling train, for example a finishing train.
  • the transport direction x is usually fixed and is the same for each rolling process. This configuration is the norm, particularly in the case of a metal strip.
  • the roll stand 1 can be designed as a reversing stand. In this case, the transport direction x reverses from pass to pass.
  • Reversing stands are used in particular for rolling heavy plate. However, they are sometimes also used for rolling metal strip, for example in rough rolling or in a Steckel mill.
  • the flat rolling stock 2 generally has at least one upper and one lower backup roll 6, 7. Sometimes additional rolls can also be present, for example in the case of a six-high stand an upper and a lower intermediate roll.
  • the back-up rolls 6, 7 and optionally also the intermediate rolls are of secondary importance within the scope of the present invention. In the context of the present invention, it is also of secondary importance whether the work rolls 3, 4 and/or intermediate rolls, if any, are axially displaceable.
  • the backup rolls 6, 7, the intermediate rolls and the axial displaceability of work rolls 3, 4 and/or intermediate rolls are therefore not discussed in detail below.
  • an upper cooling device 8 and a lower cooling device 9 are arranged.
  • the upper work roll 3 can be cooled on the outlet side by means of the upper cooling device 8, and the lower work roll 4 by means of the lower cooling device 9.
  • Corresponding cooling devices 10, 11 are often also arranged on the entry side of the roll stand 1.
  • a liquid coolant 12 is applied to the upper or lower work roll 3, 4 by means of the respective cooling device 8 to 11.
  • the liquid coolant 12 is water or at least contains water as its main component—usually more than 95%, for example 99% and more.
  • Each cooling device 8 to 11 that is present is also assigned a stripping element 13 to 16 .
  • the liquid coolant 12 applied to the respective work roll 3, 4 is wiped off the respective work roll 3, 4 by means of the respective stripping element 13 to 16, so that it does not get onto the flat rolling stock 2.
  • the design of the upper cooling device 8 arranged on the outlet side of the roll stand 1 is decisive. It is possible that the upper cooling device 10 arranged on the inlet side of the roll stand 1 is designed in the same way. However, it can also be designed in other ways. Only if the roll stand 1 is operated as a reversing stand does this cooling device 10 also have to be designed in such a way that the entry side and exit side are reversed for each pass compared to the previous pass. It is also possible that the lower cooling devices 9, 11 are designed in a similar way to the upper cooling devices 8, 10. In this case, the following explanations for the design of the upper cooling device 8 would apply as a mirror image. But you can also be formed in other ways. Since the design of the lower cooling devices 9, 11 and the inlet side of the roll stand 1 arranged cooling devices 10, 11 in the context of The present invention is of secondary importance, only the upper cooling device 8 arranged on the outlet side of the roll stand 1 is explained in more detail below.
  • the upper cooling device 8 arranged on the outlet side of the roll stand 1 has at least one upper spray bar 17 and one lower spray bar 18 .
  • the lower spray bar 18 is arranged between the flat rolled material 2 and the upper spray bar 17 during the rolling of the flat rolled stock 2 .
  • the upper and lower spray bars 17, 18 are the only spray bars 17, 18 of the cooling device 8.
  • central spray bars 19, 20 are also present.
  • the middle spray bars 19, 20, if they are present, are arranged between the upper and lower spray bars 17, 20.
  • the number of middle spray bars 19, 20 is usually one or two. More than a total of four spray bars 17 to 20 are usually not available.
  • the spray bars 17 to 20 extend parallel to the upper work roll 3. Extension directions of the spray bars 17 to 20 thus run parallel to the axis of rotation 21 of the upper work roll 3.
  • Each spray bar 17 to 20 has a plurality of spray nozzles 22 to 25.
  • the spray nozzles 22 to 25 are arranged next to one another, seen in the direction in which the respective spray bar 17 to 20 extends.
  • the liquid coolant 12 is sprayed onto the upper work roll 3 by means of the spray nozzles 22 to 25 .
  • the spray nozzles 22 of the upper spray bar 17 are referred to below as upper spray nozzles 22, the spray nozzles 23 of the lower spray bar 18 as lower spray nozzles.
  • the spray nozzles 24, 25 of the middle spray bars 19, 20 are referred to as middle spray nozzles.
  • the distinction as upper, lower and middle spray nozzles 22 to 25 only serves to allocate them to the respective spray bar 17 to 20. The designation has no further meaning.
  • FIG 4 shows the spray pattern caused by the spray nozzles 22 to 25 of the spray bars 17 to 20. From the presentation in FIG 4 It can be seen that the spray nozzles 22 to 25 are arranged equidistantly as seen in the direction in which the spray beams 17 to 20 extend. However, it is also possible to provide a non-equidistant arrangement. For example, under certain circumstances it can be useful to provide larger distances at the lateral edges. It is also possible to combine the spray nozzles 22 to 25 of the respective spray bar 17 to 20 into groups of adjacent spray nozzles 22 to 25, so that each individual group of spray nozzles 22 to 25 can be controlled independently.
  • the upper spray nozzles 22 are designed as flat spray nozzles.
  • Flat jet nozzles are as shown in the 5 and 6 Spray nozzles, which fan out the liquid jet emitted by them in one direction, while there is only a very small fanning out in the other direction.
  • An opening angle ⁇ in the direction in which the liquid jet is fanned out is according to 5 at least 20°, mostly 40° or more.
  • An opening angle ⁇ orthogonal thereto, in which the liquid jet is not fanned out, is according to FIG 6 maximum at 3°, mostly at 1° to 2°.
  • an opening angle ⁇ is 0°. In practice, it is usually 1° to 2°, but a maximum of 5°. The opening angle ⁇ is usually independent of the plane that is viewed.
  • the spray nozzles 22, 23 of the upper and lower spray bars 17, 18 are each uniformly designed as flat jet nozzles or as full jet nozzles.
  • the upper spray bar 17 can also have nozzles other than flat spray nozzles—especially at its edges as seen in the width direction of the flat rolling stock 2 .
  • the middle spray nozzles 24, 25 can be designed as flat jet nozzles or as full jet nozzles, as required.
  • each middle spray bar 19, 20 preferably has only a single type of spray nozzle, ie either flat jet nozzles or full jet nozzles, but not mixed flat jet nozzles and full jet nozzles. This statement applies at least in the width direction of the flat rolling stock 2 in a central region of the respective central spray bar 19, 20.
  • the spray nozzles 24, 25 of the respective central spray bar 19, 20 are of uniform design. At least
  • the spray bars 17 to 20 form a sequence of spray bars 17, 19, 20, 18 viewed from top to bottom. Within the sequence of spray bars 17, 19, 20, 18 there is preferably only a single change from flat jet nozzles to full jet nozzles. It is therefore possible for the spray nozzles 24, 25 of both central spray beams 19, 20 to be in the form of full jet nozzles. In this case, the change from flat jet nozzles to full jet nozzles takes place at the transition from the upper spray bar 17 to the upper middle spray bar 19. It is also possible for the spray nozzles 24, 25 of both middle spray bars 19, 20 to be designed as flat jet nozzles. In this case, the change from flat jet nozzles to full jet nozzles takes place at the transition from the lower middle spray bar 20 to the lower spray bar 18.
  • the spray nozzles 24, 25 of one of the two middle spray bars 19, 20 are designed as flat jet nozzles and as full jet nozzles.
  • the change from flat jet nozzles to full jet nozzles takes place as shown in 3 at the transition from the upper middle spray bar 19 to the lower middle spray bar 20.
  • An embodiment in which the spray nozzles 24 of the upper middle spray bar 19 as full jet nozzles and the spray nozzles 25 of the lower middle spray bar 20 as Flat jet nozzles are formed, is in principle possible, but should be avoided if possible. At least these statements apply to areas of the spray bars 17, 19, 20, 18 that correspond to one another in the width direction of the flat rolling stock 2.
  • the areas of the upper work roll 3 which are sprayed by one of the spray nozzles 22 to 25 are disjoint from the areas which are sprayed by the other spray nozzles 22 to 25.
  • Each individual spray nozzle 22 to 25 thus individually sprays a respective area of the upper work roll 3, the areas being disjunctive to one another.
  • the spray nozzles 22 and possibly also 24 and 25, which are designed as flat jet nozzles direct the coolant neither horizontally nor vertically, but according to the illustration in FIG 4 Apply at an angle so that there is a certain overlap in the vertical direction.
  • the liquid coolant 12 is subjected to a first working pressure p1, insofar as it is supplied to the full jet nozzles, i.e. the lower spray nozzles 23 and the middle spray nozzles 25 of the lower middle spray bar 20 according to the exemplary embodiment a second working pressure p2 can be applied, insofar as it is fed to the flat jet nozzles according to the exemplary embodiment, i.e. the upper spray nozzles 22 and the middle spray nozzles 24 of the upper middle spray beam 20.
  • corresponding pumps 26, 27 can be present for this purpose.
  • the first working pressure p1 can be set, for example, by a control device 28 by correspondingly activating the pump 26 .
  • the second working pressure p2 can be set, for example, by the control device 28 by correspondingly activating the pump 27 .
  • the setting of the working pressure p1 and / or the working pressure p2 or the volume flow for example via control valves.
  • the two working pressures p1, p2 can be adjusted by the control device 28 independently of one another.
  • the first working pressure p1 is in the embodiment according to FIG 8 but smaller than the second working pressure p2.
  • the first working pressure p1 can be around 5 bar, in particular around 2 bar to 3 bar.
  • the second working pressure p2, on the other hand, is preferably at least 6 bar, for example approximately 12 bar to 16 bar.
  • the liquid coolant 12 it is as shown in 9 It is possible for the liquid coolant 12 to be subjected to a uniform working pressure p, regardless of whether it is fed to the full jet nozzles or to the flat jet nozzles.
  • a common pump 29 can be present for this purpose.
  • the common working pressure p can be set by the control device 28 by appropriately controlling the pump 29 .
  • the working pressure p is preferably a maximum of 10 bar. In particular, analogous to the first working pressure p1, it can be about 2 bar to 3 bar.
  • the present invention has many advantages.
  • the lower area of the upper work roll 3 can also be well cooled when a liquid pool has formed on the associated stripping element 13 .
  • the angular range over which the cooling takes place can be maximized.
  • cooling can already begin immediately above the upper stripping element 13 arranged on the outlet side of the roll stand 1 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Claims (7)

  1. Cage de laminoir permettant de laminer un produit à laminer plat (2) en métal,
    - dans laquelle la cage de laminoir présente un cylindre de travail supérieur (3) et un cylindre de travail inférieur (4) qui forment entre eux une emprise (5),
    - dans laquelle l'emprise (5) est traversée par le produit à laminer plat (2) dans une direction de transport (x) pendant le laminage du produit à laminer plat (2),
    - dans laquelle côté sortie de la cage de laminoir est disposé un dispositif de refroidissement supérieur (8) au moyen duquel le cylindre de travail supérieur (3) est refroidi,
    - dans laquelle le cylindre de refroidissement supérieur (8) présente une rampe de pulvérisation supérieure (17) qui s'étend parallèlement au cylindre de travail supérieur (3) et présente une pluralité de buses de pulvérisation supérieures (22) au moyen desquelles un agent de refroidissement liquide (12) est pulvérisé sur le cylindre de travail supérieur (3),
    - dans laquelle le dispositif de refroidissement supérieur (8) présente une rampe de pulvérisation inférieure (18) qui s'étend parallèlement au cylindre de travail supérieur (3) et présente une pluralité de buses de pulvérisation inférieures (23) au moyen desquelles l'agent de refroidissement liquide (12) est pulvérisé sur le cylindre de travail (3),
    - dans laquelle la rampe de pulvérisation inférieure (18) est disposée entre le produit à laminer plat (2) et la rampe de pulvérisation supérieure (17),
    - dans laquelle au moins quelques-unes des buses de pulvérisation supérieures (22) - en règle générale toutes les buses de pulvérisation supérieures (22) - sont configurées en tant que buses à jet plat,
    caractérisée en ce que
    au moins quelques-unes des buses de pulvérisation inférieures (23) - en règle générale toutes les buses de pulvérisation inférieures (23) - sont configurées en tant que buses à jet plein qui sont aptes à émettre un jet d'agent de refroidissement circulaire avec un angle d'ouverture maximal de 5°.
  2. Cage de laminoir selon la revendication 1,
    caractérisée en ce que
    la cage de laminoir présente au moins une rampe de pulvérisation centrale (19, 20) qui est disposée entre la rampe de pulvérisation supérieure et la rampe de pulvérisation inférieure (17, 18), s'étend parallèlement au cylindre de travail supérieur (3) et présente une pluralité de buses de pulvérisation centrales (24, 25) au moyen desquelles l'agent de refroidissement liquide (12) est pulvérisé sur le cylindre de travail (3) et en ce que les buses de pulvérisation centrales (24, 25) de chaque rampe de pulvérisation centrale (19, 20) sont configurées au moins dans une zone centrale de la rampe de pulvérisation centrale (19, 20) respective soit de manière homogène en tant que buses à jet plat soit de manière homogène en tant que buses à jet plein.
  3. Cage de laminoir selon la revendication 2,
    caractérisée en ce que
    la rampe de pulvérisation supérieure (17), les rampes de pulvérisation centrales (19, 20) et la rampe de pulvérisation inférieure (18) forment de haut en bas vues depuis le bas une suite de rampes de pulvérisation (17, 19, 20, 18) et en ce que, en dessous de la suite de rampes de pulvérisation (17, 19, 20, 18) pour des zones des rampes de pulvérisation (17, 19, 20, 18) correspondant entre elles dans la direction de la largeur du produit à laminer plat (2) un changement des buses à jet plat au profit des buses à jet plein ne se produit qu'une seule fois.
  4. Cage de laminoir selon la revendication 1, 2 ou 3,
    caractérisée en ce que
    la cage de laminoir est configurée pour alimenter avec une première pression de travail (p1) l'agent de refroidissement (12) amené aux buses à jet plein, pour alimenter avec une seconde pression de travail (p2) l'agent de refroidissement (12) amené aux buses à jet plat et en ce que la première pression de travail (p1) est plus basse que la seconde pression de travail (p2).
  5. Cage de laminoir selon la revendication 4,
    caractérisée en ce que
    la première pression de travail (p1) se monte au maximum à 5 bars et en ce que la seconde pression de travail (p2) se monte à au moins 6 bars.
  6. Cage de laminoir selon la revendication 1, 2 ou 3,
    caractérisée en ce que
    la cage de laminoir est configurée pour alimenter avec une pression de travail homogène (p) l'agent de refroidissement (12) amené aux buses à jet plein et l'agent de refroidissement (12) amené aux buses à jet plat.
  7. Cage de laminoir selon la revendication 6,
    caractérisée en ce que
    la pression de travail (p) se monte au maximum à 10 bars.
EP18185862.2A 2018-07-26 2018-07-26 Cage de laminoir pourvu de dispositif de refroidissement hybride Active EP3599036B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18185862.2A EP3599036B1 (fr) 2018-07-26 2018-07-26 Cage de laminoir pourvu de dispositif de refroidissement hybride
CN201980049887.4A CN112423905B (zh) 2018-07-26 2019-07-04 具有混合的冷却装置的轧制机架
PCT/EP2019/067939 WO2020020592A1 (fr) 2018-07-26 2019-07-04 Cage de laminoir dotée d'un dispositif de refroidissement hybride
RU2021104618A RU2764692C1 (ru) 2018-07-26 2019-07-04 Прокатная клеть с гибридным охлаждающим устройством
US17/261,205 US11559830B2 (en) 2018-07-26 2019-07-04 Roll stand having a hybrid cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18185862.2A EP3599036B1 (fr) 2018-07-26 2018-07-26 Cage de laminoir pourvu de dispositif de refroidissement hybride

Publications (2)

Publication Number Publication Date
EP3599036A1 EP3599036A1 (fr) 2020-01-29
EP3599036B1 true EP3599036B1 (fr) 2022-06-15

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EP18185862.2A Active EP3599036B1 (fr) 2018-07-26 2018-07-26 Cage de laminoir pourvu de dispositif de refroidissement hybride

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Country Link
US (1) US11559830B2 (fr)
EP (1) EP3599036B1 (fr)
CN (1) CN112423905B (fr)
RU (1) RU2764692C1 (fr)
WO (1) WO2020020592A1 (fr)

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DE102009053074A1 (de) 2009-03-03 2010-09-09 Sms Siemag Ag Verfahren und Kühlvorrichtung zum Kühlen der Walzen eines Walzgerüstes
JP5433794B2 (ja) * 2011-05-16 2014-03-05 新日鉄住金エンジニアリング株式会社 圧延ロールの洗浄装置および洗浄方法
CN202238899U (zh) 2011-08-23 2012-05-30 安徽精诚铜业股份有限公司 一种轧辊冷却装置
CN104874614B (zh) 2014-02-28 2017-04-26 上海梅山钢铁股份有限公司 乳化液精细冷却系统控制方法以及控制装置
EP3308868B1 (fr) 2016-10-17 2022-12-07 Primetals Technologies Austria GmbH Refroidissement d'un rouleau d'une cage de laminoir
CN108927409A (zh) * 2018-06-14 2018-12-04 本钢板材股份有限公司 一种棒材轧机水冷系统及其优化方法

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EP3599036A1 (fr) 2020-01-29
WO2020020592A1 (fr) 2020-01-30
RU2764692C1 (ru) 2022-01-19
CN112423905A (zh) 2021-02-26
US11559830B2 (en) 2023-01-24
US20210245214A1 (en) 2021-08-12
CN112423905B (zh) 2023-07-11

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