EP3448592A1 - Procédé pour laminer une matière à laminer - Google Patents

Procédé pour laminer une matière à laminer

Info

Publication number
EP3448592A1
EP3448592A1 EP17723941.5A EP17723941A EP3448592A1 EP 3448592 A1 EP3448592 A1 EP 3448592A1 EP 17723941 A EP17723941 A EP 17723941A EP 3448592 A1 EP3448592 A1 EP 3448592A1
Authority
EP
European Patent Office
Prior art keywords
lubricant
rolling
rolling stock
additional
contact zone
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.)
Granted
Application number
EP17723941.5A
Other languages
German (de)
English (en)
Other versions
EP3448592B1 (fr
EP3448592B2 (fr
Inventor
Matthias Holzweber
Konrad Krimpelstaetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
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Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Publication of EP3448592A1 publication Critical patent/EP3448592A1/fr
Publication of EP3448592B1 publication Critical patent/EP3448592B1/fr
Application granted granted Critical
Publication of EP3448592B2 publication Critical patent/EP3448592B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • 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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
    • 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
    • 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
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the invention relates to a method for rolling, in particular for cold rolling, a rolling stock, wherein the rolling stock through a nip between two work rolls of a
  • Rolling mill is guided and a contact zone, in which a contact surface of the rolling stock bears against a work roll, is lubricated.
  • the rolling stock is a metallic rolled strip, which is pulled by the rotating work rolls through the nip in order to reduce its thickness.
  • Contact zone in which the rolling stock is in contact with a work roll, reduces the friction between the rolling stock and the work roll.
  • the work rolls are usually cooled. There are different procedures and
  • Apparatuses for lubricating contact zones in which a rolling stock is in contact with work rolls are known.
  • EP 2 651 577 B1 discloses a method for applying a lubricant during rolling of a metallic rolled strip, which is guided in a nip between two work rolls.
  • a mixture of the lubricant and a carrier gas is generated in a atomizing device, and the mixture is applied with spray nozzles on the surface of at least one work roll and / or on the surface of the rolled strip.
  • WO 2013/029886 A1 discloses an operating method for a reversing rolling mill with at least one reversing rolling stand for rolling a rolling stock and a reel for reeling the rolling stock after a rolling pass.
  • a rolling oil application device which is arranged between the at least one reversing roll stand and the coiler, exclusively rolling oil without water as the carrier medium applied to the rolling stock.
  • WO 00/64605 A1 discloses a rolling arrangement with at least one rolling stand for rolling a metal strip and a rolling device associated with the lubricating device distributed over the metal strip width applying an amount
  • the lubricating device has a basic lubricating device and a
  • Additional lubrication device to be applied lubricant is adjustable. Behind the rolling mill is with a
  • Lubricant and / or at least one rolling parameter used are Lubricant and / or at least one rolling parameter used.
  • EP 1 750 864 B2 discloses a method and a device for cooling and / or lubricating rolls and / or rolling stock.
  • a cooling medium on the rollers and for lubrication on the other hand applied a base oil before the nip on the rolling
  • the cooling medium separated from the base oil on the rollers and excluding the base oil without water as a carrier medium in a relative to the usual amount of very small amount is applied directly to the rolling over its entire width.
  • EP 0 794 023 A2 discloses a rolling mill and a method for cold rolling a rolling stock in which rolling oil is introduced between the rolling stock and the work rolls immediately before a nip and cooling water is applied to the work rolls.
  • WO 2013/120750 Al discloses a device and a
  • Method for lubricating the rolls of a roll stand wherein a mixture of water and oil is produced by means of a mixing and spraying device and this mixture is sprayed onto at least one of the rolls of the roll stand and / or on the surface of the rolling stock.
  • JP H01 218710 A discloses a method for lubricating and cooling a rolling stock in a rolling mill, in which
  • a lubricant is applied to the rollers and wherein, if necessary, additional lubricant can be sprayed onto the rolled strip in front of the rolling stand.
  • WO2007 / 025682 AI is in a rolling mill
  • the invention has for its object to provide an improved method for rolling a rolled material, in which the rolling stock is guided through a nip between two work rolls of a roll stand and contact zones, in which the rolling stock is in contact with the work rolls,
  • the rolling stock is guided in a rolling direction through a nip between two work rolls of a roll stand and in a contact zone in which a
  • Process parameter of the rolling process determines, and with respect to the rolling direction in front of the nip at a predetermined Aufbringabstand from the nip is a
  • the method advantageously makes it possible, if necessary, to use an additional lubricant for lubricating a contact zone between the rolling stock and a work roll in addition to a cooling lubricant, if the introduced
  • the additional lubricant Due to the fact that the additional lubricant is applied to the rolling stock in a predetermined application distance upstream of the roll gap, the additional lubricant also acts on the rolling stock until it reaches the roll gap. Through this long exposure time advantageously improves the lubricating effect (the so-called plate-out) of the additional lubricant in the contact zone against an application of the
  • the invention provides that in the contact zone
  • cooling lubricant is reduced when additional lubricant is applied to the contact surface. This takes into account that additional lubricant can be washed off again by the cooling lubricant. Therefore, it is useful to reduce the amount of cooling lubricant when additional lubricant is applied to prevent or reduce this washing-off effect of the cooling lubricant.
  • a further embodiment of the invention provides that as a process parameter for determining the lubrication requirement a Walzgut Irish of the rolling stock and / or a compression strength of the rolling stock and / or roughness of the rolling stock and / or a relative speed between the contact surface of the rolling stock at a reference location and the surface the work roll and / or a thickness of the rolling stock and / or a viscosity of the cooling lubricant is or will be used.
  • Lubrication requirements depend heavily on the rolling stock speed.
  • the nip friction also depends significantly on the compressive strength and roughness of the rolling stock, which is why these material properties of the rolling stock are advantageous as a process parameter for determining the lubrication need.
  • the material properties of the rolling stock are advantageous as a process parameter for determining the lubrication need.
  • the relative speed between the contact surface of the rolling stock and the surface of the work roll depends on the location in which the speed of the contact surface is considered, since the thickness of the rolled material changes in the contact zone and the contact surface is slower in front of the nip and behind the nip moved faster than the surface of the work roll. Therefore, the relative speed between the contact surface of the rolling stock and the surface of the work roll must be related to a reference location fixed with respect to the nip. This relative speed is a measure of the
  • Reference location can be, for example, a current angular velocity and a radius of the work roll, a distance of the reference location of the roll gap, the thicknesses of the rolling before and behind the nip and a
  • Work roll at a reference location can thus at least approximately be determined from the above-mentioned variables, which can be easily determined by measurements and are usually recorded anyway.
  • a further embodiment of the invention provides that the amount of cooling lubricant introduced into the contact zone Dependent on the at least one process parameter of the rolling process is set.
  • the amount of cooling lubricant as a function of the at least one process parameter can be taken into account in particular that the additional lubrication reduces the rolling gap friction, whereby the heating of the work rolls and thus the cooling demand decrease and thus the amount of cooling lubricant used can be reduced accordingly.
  • Further embodiments of the invention provide that as
  • Additional lubricant is a pure lubricant, such as a rolling oil, or a lubricating emulsion, which has a higher lubricant content than the cooling lubricant, is used. According to these embodiments, the
  • Cooling lubricant so that even a relatively small amount of additional lubricant significantly increases the lubrication of the contact zone.
  • the use of a lubricating emulsion instead of a pure lubricant as an additional lubricant may be advantageous if the additional lubricant in addition to the lubricating effect and a cooling function for cooling the
  • a further embodiment of the invention provides that the additional lubricant is applied to the rolling stock with an additional lubrication device, regardless of a
  • Cooling lubrication device for introducing the cooling lubricant in the contact zone.
  • This embodiment of the invention thus provides a separation of the trades for the application of the Coolant and the additional lubricant before. This advantageously allows a flexible configuration of the entire cooling and lubricating complex for a rolling mill and easy retrofitting of existing facilities, without on the cooling lubricating devices for introducing a
  • Rolling process and / or determined during the rolling process Determining the lubrication requirement prior to the start of the rolling process allows one to be at least one
  • Process parameters adapted lubrication of the contact zone already at the beginning of the rolling process Determining the lubrication requirement during the rolling process allows the lubrication to be adjusted to changes in the at least one during the rolling process
  • Friction between the contact surface and the work roll in the contact zone is determined in dependence on at least one process parameter.
  • Stribeck diagrams are for example from J.B.A.F. Smeulders, "Lubrication in the Cold Rolling Process Described by a 3D Stribeck Curve", AISTech 2013 Proceedings, pp. 1681-1689
  • the mill stand can be assigned an operating point which determines the coefficient of friction of the rolling stand for the respective values of the rolling stand
  • Lubrication can be adjusted to optimize the rolling process, for example, in terms of the throughput of the rolling stock, the wear of the work rolls, the lubricant and coolant consumption and / or the required drive power for the work rolls.
  • a further embodiment of the invention provides that the additional lubricant on two opposite
  • Additional lubricant can be applied.
  • Rolled material advantageously allows a coordinated lubrication of both contact zones of the rolling stock with the Strippers.
  • the application of mutually different additional lubricant amounts of the additional lubricant on the two contact surfaces in particular allows to influence and optimize a torque distribution between the work rolls.
  • FIG. 1 shows a block diagram of a rolling mill
  • Cooling lubricating device and an additional lubrication device Cooling lubricating device and an additional lubrication device
  • FIG. 3 shows schematically a rolling train of a rolling mill.
  • Figure 1 shows a block diagram of a rolling stand 1 for rolling a rolling stock 3, a cooling lubricating device 5 and an additional lubricating device 7.
  • the rolling stock 3 is a metallic rolled strip, for example a steel strip whose thickness is reduced by the rolling.
  • the rolling stand 1 has two superimposed
  • Rolling gap 11 are spaced.
  • the work rolls 9, 10 are set in rotation and the rolling stock 3 is pulled through the rolling work rolls 9, 10 in a rolling direction 13 through the nip 11.
  • the rolling stock 3 is in two contact zones 15, 16 in the area of the roll gap 11 with the work rolls 9, 10 in contact, wherein an upper contact surface 17 of the rolled material 3 in a first contact zone 15 bears against the upper work roll 9 and a lower contact surface 18 of the rolled material 3 in a second contact zone 16 at the lower
  • the cooling lubricant is a cooling lubricant emulsion consisting of a cooling fluid and lubricant, for example water as
  • Cooling lubricant emulsion is the cooling liquid, while the lubricant content of the cooling lubricant is only a few percent, for example, two to three percent.
  • the cooling lubricating device 5 comprises a
  • Coolant pump 19 at least one
  • Coolant spray bar 21 includes
  • Coolant lubricant nozzles for dispensing cooling lubricant to the respective work roll 9, 10.
  • the cooling lubricant is from the cooling lubricant pump 19 through the
  • Coolant spray bar 21 pumped and through the
  • Coolant spray bar 21 sprayed on the work rolls 9, 10.
  • the cooling lubricant quantities C respectively discharged from the cooling lubricant spray bars 21 are determined by the
  • Cooling lubricant control 25 by controlling the
  • Coolant pump 19 is set. By the rotation of the work rolls 9, 10 is on the work rolls 9, 10th
  • the additional lubricant is a pure lubricant
  • a rolling oil, or a lubricating emulsion of a carrier liquid and lubricant for example, water as the carrier fluid and rolling oil as a lubricant, wherein the lubricant content of the additional lubricant is higher than the lubricant content of the cooling lubricant and is for example about 20%.
  • the additional lubrication device 7 comprises a
  • Additional lubricant is from the additional lubricant pump 27 through the additional lubricant lines 31 to the
  • Additional lubricant spray bar 29 is pumped and by the additional lubricant spray bar 29 on the
  • Additional lubricant pump 27 is set. As a result of the movement of the rolling stock 3, additional lubricant sprayed onto the contact surfaces 17, 18 is transported to the contact zones 15, 16.
  • the additional lubricant spray bars 29 are arranged in a predetermined application distance D with respect to the rolling direction 13 in front of the nip 11 in order to apply the additional lubricant in this application distance D from the nip 11 to the rolling stock 3.
  • the additional lubricant acts on the contact surfaces 17, 18 of the rolling stock 3 until it reaches the nip 11. During this exposure time, the additional lubricant adheres to the
  • the lubricating effect (the so-called plate-out) of the additional lubricant in the contact zones 15, 16 with respect to an application of the additional lubricant on the
  • Contact zone 15, 16 determines a lubrication requirement in dependence on at least one process parameter of the rolling process. As a process parameter becomes a
  • the rolling stock speed v is, for example, of the
  • Additional lubrication control 33 from her supplied measurement signals 35 of a belt speed sensor 37 for detecting a belt speed of the rolled strip.
  • Process parameters for determining the lubrication requirement are material properties 41 of the respective rolling stock 3, for example a compressive strength and / or a roughness of the rolling stock 3, that of the additional lubrication control 33 as material property data 41 of one
  • Production system 43 are supplied.
  • relative speeds can be derived from the
  • Measuring signals 35 are determined by speed sensors 39 for detecting the rotational speeds of the work rolls 9, 10 and the thicknesses of the rolling stock 3 before and behind the nip 11, see, for. Eg equation (3.13) on page 113 in H.
  • process parameters for the determination of the lubrication requirement are a viscosity of the cooling lubricant and / or a thickness of the rolling stock 3. If required, the cooling lubricant quantities C currently present in the contact zones 15, 16 and / or the lubricant portion of the cooling lubricant can also be detected and used as process parameters become. In addition, between the cooling lubricant control 25 and the
  • Additional lubrication control 33 control data 45 are exchanged to adjust the settings of the coolant amounts C and additional amounts of lubricant A to each other.
  • the additional lubricant is applied to each contact surface 17, 18 as a function of the lubrication requirement determined for the contact zone 15, 16 of this contact surface 17, 18, when the amount of cooling lubricant C presently introduced into the contact zone 15, 16 is equal to that for the
  • Contact zone 15, 16 does not cover certain lubrication requirements, for example, because Walzgutieri changes v or a rolling 3 is rolled with an increased compression strength.
  • the amounts of cooling lubricant C applied to the work rolls 9, 10 are either kept constant or likewise depending on the at least one process parameter of the rolling process and / or on the contact surfaces 17, 18
  • Figure 2 illustrates a method for rolling a
  • Cooling device 5 and a
  • FIG. 2 shows curves v (t), C (t), A (t) as a function of a time t
  • Cooling lubricant quantity C which with the
  • Cooling device 5 is applied to a work roll 9, 10 of the roll stand 1, and a Additional lubricant quantity A, which with the
  • Additional lubricant amount A are each as per
  • FIG. 2 shows a case in which the rolling stock 3 is made
  • Additional lubricant amount A are in each case set by the cooling lubricant control 25 and the additional lubrication control 33 as a function of a lubrication requirement, which for the contact zone 15, 16 as a function of the
  • the lubrication requirement can be between the
  • Times t 0 and t 3 are covered by cooling lubricant alone, so that no additional lubricant is applied.
  • Rolling speed v 2 increases the lubrication requirement.
  • the increased lubrication requirement is covered by a corresponding increase in the amount of cooling lubricant C.
  • rollers of the second part of the rolled strip between the times t 6 and t 7 requires a larger amount of lubricant A and is applied to the rollers of the first transition region between the times t4 and t. 5
  • the applied amount of cooling lubricant C between the times t 3 and t 6 is reduced and kept constant between the times t 6 and t 7 , to wash off the applied
  • the applied additional lubricant amount A is first reduced for the rolling of the second transition region, and for the rolling of the third part of the rolling strip with the second rolling speed v 2 is no
  • Rolling stock speed v 5 requires a lubrication requirement that can not be covered by the cooling lubricant alone. Therefore, for the rolling of the third sectionwalzbandes with the fifth Walzgut Irish v 5 again
  • FIG. 3 schematically shows a rolling train 47 of a rolling mill with a plurality of roll stands 1 arranged one behind the other for rolling a rolling stock 3.
  • the rolling stands 1 each have two superposed work rolls 9, 10 and for each work roll a support roll 49.
  • the rolling train 47 does not have one for each rolling stand 1 in FIG.
  • Cooling lubricating devices 5 are each formed like the cooling lubricating device 5 shown in FIG. 1, and the auxiliary lubricating devices 7 are each formed like the auxiliary lubricating device 7 shown in FIG. 1, with the auxiliary lubricant spraying bars 29 each
  • Additional lubrication device 7 are arranged in the application distance D with respect to the rolling direction 13 in front of the nip 11 of the associated rolling stand 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Lubricants (AREA)

Abstract

L'invention concerne un procédé pour laminer une matière à laminer (3), la matière en laminage (3) étant guidée à travers une emprise (11) entre deux cylindres de travail (9, 10) d'une cage de laminoir (1) et, dans une zone de contact (15, 16) dans laquelle une surface de contact (17, 18) de la cage de laminoir (3) s'appuie contre un cylindre de travail (9, 10), un lubrifiant de refroidissement étant introduit pour la lubrification de la zone de contact (15, 16). En outre, des besoins en lubrification de la zone de contact (15, 16) sont déterminés en fonction d'au moins un paramètre du processus de laminage et un lubrifiant supplémentaire est appliqué sur la surface de contact (17, 18) de la matière en laminage (3) devant l'emprise (11) à une distance d'application (D) prédéfinie lorsqu'une quantité de lubrifiant de refroidissement (C) introduite instantanément dans la zone de contact (15, 16) ne répond pas aux besoins en lubrification. La distance d'application (D) est dimensionnée de telle sorte qu'une adhérence du lubrifiant supplémentaire à la surface de contact (17, 18) est augmentée et que l'effet de lubrification dans la zone de contact (15, 16) est amélioré par rapport à une application directement avant l'emprise (11). En outre, la quantité de lubrifiant de refroidissement (C) introduite dans la zone de contact (15, 16) est réduite lorsque le lubrifiant supplémentaire est appliqué sur la surface de contact (17, 18).
EP17723941.5A 2016-04-29 2017-04-28 Procede de laminage d'un produit de laminage Active EP3448592B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16167662.2A EP3238843A1 (fr) 2016-04-29 2016-04-29 Procede de laminage d'un produit de laminage
PCT/EP2017/060193 WO2017186910A1 (fr) 2016-04-29 2017-04-28 Procédé pour laminer une matière à laminer

Publications (3)

Publication Number Publication Date
EP3448592A1 true EP3448592A1 (fr) 2019-03-06
EP3448592B1 EP3448592B1 (fr) 2020-01-22
EP3448592B2 EP3448592B2 (fr) 2025-04-23

Family

ID=55860772

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16167662.2A Withdrawn EP3238843A1 (fr) 2016-04-29 2016-04-29 Procede de laminage d'un produit de laminage
EP17723941.5A Active EP3448592B2 (fr) 2016-04-29 2017-04-28 Procede de laminage d'un produit de laminage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16167662.2A Withdrawn EP3238843A1 (fr) 2016-04-29 2016-04-29 Procede de laminage d'un produit de laminage

Country Status (7)

Country Link
US (1) US11161161B2 (fr)
EP (2) EP3238843A1 (fr)
JP (1) JP6820349B2 (fr)
CN (1) CN109070162B (fr)
MX (1) MX392195B (fr)
RU (1) RU2701916C1 (fr)
WO (1) WO2017186910A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP4501480A1 (fr) * 2023-08-03 2025-02-05 Primetals Technologies Austria GmbH Procédé et système pour l'application d'un lubrifiant lors du laminage à froid d'un produit à laminer dans une cage de laminoir
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EP4732969A1 (fr) 2024-10-22 2026-04-29 Primetals Technologies Austria GmbH Procédé de détermination de valeurs de réglage améliorées pour une cage de laminoir destinée au laminage à froid d'une bande

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JP4924398B2 (ja) 2007-12-13 2012-04-25 Ｊｆｅスチール株式会社 冷間圧延における潤滑油供給方法
JP2011200877A (ja) 2010-03-24 2011-10-13 Jfe Steel Corp 金属帯の冷間圧延方法
EP2465619A1 (fr) 2010-12-16 2012-06-20 Siemens VAI Metals Technologies GmbH Procédé et dispositif d'application d'un lubrifiant lors du laminage d'un produit de laminage métallique
WO2013029886A1 (fr) 2011-08-30 2013-03-07 Siemens Vai Metals Technologies Gmbh Laminoir réversible et procédé de fonctionnement d'un laminoir réversible
SI2572807T1 (sl) * 2011-09-22 2014-10-30 Constantia Teich Gmbh Postopek za izdelavo aluminijeve folije z integriranimi varnostnimi značilnostmi
CN104105554B (zh) 2012-02-15 2017-05-17 首要金属科技奥地利有限责任公司 用于轧辊间隙润滑的低保养的喷嘴混合器单元
JP6455683B2 (ja) * 2016-04-21 2019-01-23 Ｊｆｅスチール株式会社 金属帯の冷間圧延設備および冷間圧延方法

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JP6820349B2 (ja) 2021-01-27
MX2018012916A (es) 2019-05-22
CN109070162A (zh) 2018-12-21
JP2019514693A (ja) 2019-06-06
CN109070162B (zh) 2020-12-08
WO2017186910A1 (fr) 2017-11-02
RU2701916C1 (ru) 2019-10-02
EP3238843A1 (fr) 2017-11-01
US11161161B2 (en) 2021-11-02
EP3448592B1 (fr) 2020-01-22
EP3448592B2 (fr) 2025-04-23
US20190151919A1 (en) 2019-05-23

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