EP1033182A1 - Warmbandwalzwerk - Google Patents

Warmbandwalzwerk Download PDF

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Publication number
EP1033182A1
EP1033182A1 EP99940680A EP99940680A EP1033182A1 EP 1033182 A1 EP1033182 A1 EP 1033182A1 EP 99940680 A EP99940680 A EP 99940680A EP 99940680 A EP99940680 A EP 99940680A EP 1033182 A1 EP1033182 A1 EP 1033182A1
Authority
EP
European Patent Office
Prior art keywords
rolling mill
sheet
roll
hot rolling
diameter
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.)
Withdrawn
Application number
EP99940680A
Other languages
English (en)
French (fr)
Other versions
EP1033182A4 (de
Inventor
Akio Adachi
Masanori Takahashi
Tanehiro Kikkawa
Shinji Takaoka
Ichiro Chikushi
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.)
Nakayama Steel Works Ltd
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Nakayama Steel Works Ltd
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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
Application filed by Nakayama Steel Works Ltd, Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Nakayama Steel Works Ltd
Publication of EP1033182A1 publication Critical patent/EP1033182A1/de
Publication of EP1033182A4 publication Critical patent/EP1033182A4/de
Withdrawn legal-status Critical Current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
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter
    • B21B2267/065—Top and bottom roll have different diameters; Asymmetrical rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B21B2269/14—Work rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product
    • 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
    • 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
    • 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
    • B21B45/004—Heating the product

Definitions

  • the present invention relates to a hot rolling mill system capable of smoothly producing a sheet (steel sheet) having a uniform thickness.
  • Edge-drop is a sharp decrease in the thickness of side edge parts of a sheet in curved slopes caused by shoulders in rolls each formed at the boundary of a working part of the roll used for pressing the sheet and an idle part of the roll not used for pressing the sheet (a part of the roll corresponding to a space outside the edge of the sheet) and having the shape of a circular arc.
  • Pincher is folding of the tail end part of a sheet bar that becomes unstable when a tension is not exerted on the sheet bar between rolling mills. The folding occurs due to collision of the unstable tail end part against a side guide or the like, and the folded tail end part enters the rolling mill as it is. The accuracy of the sheet is reduced if crowning or pincher occurs. The rolls are damaged and the rolls need grinding if pincher occurs, and thereby production is reduced greatly.
  • Pincher is more likely to occur as the sheets become thinner.
  • the sheet bar is rolled at a large draft, a high rolling force is exerted on the sheet bar and force that moves the sheet bar laterally increases accordingly. If the sheet bar collides against a guide or the like disposed in front of the rolling mill, the tail end part of the sheet bar is bent easily. Therefore, the lower limit of the thickness of steel sheets that can be rolled by a hot rolling mill has been 1.2 mm.
  • a hot rolling mill system of the present invention has a finishing mill consisting of a front stage and a back stage, in which
  • the CVC rolling mill in 1 ⁇ is a well-known rolling mill including rolls having axially varying outside diameter and capable of axial movement (CVC rolls).
  • the pair-cross rolling mill is a well-known rolling mill including a pair of sets each of a work roll and a backup roll disposed so that the pair of sets are disposed not in parallel to each other, the pair of sets cross each other, middle parts of the work rolls of the pair of sets are closest to each other, and the positional relation between the pair of sets(angle between the pair of sets) can be changed.
  • the shape of a roll gap can be changed.
  • the roll gap can be changed in the CVC rolling mill by axially moving the CVC rolls having varying outside diameter and in the pair-cross rolling mill by changing the positional relation between the crossed rolls.
  • the ability to change the roll gap of those rolling mills is higher than that of rolling mills that uses simple roll bending.
  • the different-diameter-roll mill in 2 ⁇ is a rolling mill including a pair of work rolls respectively having different diameters and only the work roll of a large diameter is driven for rotation. Since one of the pair of work rolls has a small diameter, the different-diameter-roll mill is able to roll a sheet bar in a large draft easily by a low rolling force. Since a shearing force is exerted on the sheet bar by driving only the work rolls of a large diameter, the different-diameter-roll mill is able to roll the sheet bar in a large draft more easily than a general rolling mill having work rolls of the same large diameter.
  • the different-diameter-roll mill is able to roll a sheet bar in the same draft as that in which the general rolling mill or the rolling mill stated in 1 ⁇ and included in the front stage even if the rolling force of the different-diameter-roll mill is lower than those of the general rolling mill or the rolling mill stated in 1 ⁇ and included in the front stage. Therefore, even if the number of the stands of the different-diameter-roll mill is small and the different-diameter-roll mill has a compact arrangement, the different-diameter-roll mill is able to exercise the foregoing actions and to roll a sheet bar in a sufficient draft.
  • the different-diameter-roll mill can be constructed by small-scale modification of a general rolling mill, such as replacing one of a pair of rolls having a large diameter with a roll of a small diameter.
  • the hot rolling mill system of the present invention can be constructed simply at low cost if existing rolling mills are available for constructing the hot rolling mill system of the present invention.
  • the hot rolling mill system of the present invention having the arrangement stated in 1 ⁇ and 2 ⁇ is capable of suppressing crowning and formation of edge-drop and of reducing the frequency of formation of pinchers in the tail end parts of sheets owing to the following working operations a) to c).
  • the rolling mill (the CVC rolling mill or the pair-cross rolling mill) of 1 ⁇ of this hot rolling mill system has two or more stands, the crowning of the sheet can be effectively suppressed. Since the rolling mill (the different-diameter-roll mill) of 2 ⁇ has two or more stands, the sheet bar can be rolled in a necessary draft by using a very low rolling force, effectively suppressing the occurrence of pincher and edge-drop.
  • the hot rolling mill system of the present invention may further comprise, in addition to the foregoing components, a temperature drop preventing means for preventing temperature drop in the sheet between the last stand of a roughing mill on the upstream side and the first stand of the finishing mill.
  • the temperature top preventing means may be a tunnel furnace, a sheet bar coiler/uncoiler or a sheet bar heater.
  • the sheet before being rolled by the finishing mill moves at a low speed dependent on the rolling speed of the finishing mill. Therefore, the sheet stays for a long time in front of the finishing mill and the temperature decreases toward the tail end of the sheet bar.
  • the temperature of the sheet in the back stage of the finishing mill is lower than that of the same in the front stage of the finishing mill.
  • This hot rolling mill system maintains the temperature of the Sheet before being rolled by the finishing mill on a desired level or increases the temperature of the sheet by the temperature top preventing means.
  • a rolling force necessary for finish rolling is low when the temperature of the sheet is sufficiently high as compared with that necessary when the temperature of the sheet is not sufficiently high.
  • this hot rolling mill system that prevents temperature drop of the sheet by the temperature drop preventing means can achieve finish rolling operation (particularly that of the back stage of the finishing mill) by using a low rolling force. Since the leading end part and the tail end part of the sheet bar can be maintained at the same temperature, rolling load does not vary and stable rolling can be achieved. Thus, the occurrence of edge-drop and pincher can be effectively suppressed.
  • Fig. 1a is a general view of a hot rolling mill system A in a fast embodiment of the present invention
  • Fig. 1b shows a pair of work rolls 31a and 31b included in a CVC rolling mill included in the hot rolling mill system A shown in Fig. 1a (a view taken on line b-b in Fig. 1a)
  • Fig. 1c shows work rolls displaced axially relative to each other to change roll gap
  • Fig. 1d shows a different-diameter-roll mill 32 included in the hot rolling mill system A shown in Fig. 1a (a part indicated at d in Fig. 1a).
  • the hot rolling mill system A is constructed by arranging the following components.
  • a heating furnace 1 is disposed at an upstream end (left side as viewed in Fig. 1a) and a rough rolling mill 10 is disposed behind the heating furnace 1.
  • the heating furnace 1 is a heating means for heating a slab, i.e., a material, at about 1200 °C.
  • the rough rolling mill 10 rolls the heated slab to a plate of a thickness on the order of 30 mm.
  • Fig. 1a typically represents the rough rolling mill 10 by a single stand.
  • the rough rolling mill 10 may have a plurality of stands.
  • a finishing mill 30 having six stands is disposed behind the rough rolling mill 10, and a coiler 40 for taking up a rolled sheet is disposed behind the finishing mill 30.
  • the hot rolling mill system A has the following arrangement to produce smoothly thin steel sheets of a thickness equal to 1.2 mm or below (particularly, 1.0 mm or below) in high dimensional accuracy.
  • the three stands 31A, 31B and 31C of the front stage of the finishing mill 30 are the so-called CVC rolling mills, i.e., rolling mills having rolls having diameter continuously varying from one to the other end of the rolls.
  • the CVC rolling mills are four-high mills each having work rolls 31a and 31b and backup rolls 31c and 31d.
  • the work rolls 31a and 31b of each stand have a crown (CVC, continuous variation of the diameter).
  • the work rolls 31a and 31b can be simultaneously moved in the opposite axial directions, respectively.
  • the three stands 32A, 32B and 32C of the back stage of the finishing mill 30 are the so-called different-diameter-roll mills.
  • the different-diameter-roll mills are four-high mills each having work rolls 32a and 32b and backup rolls 32c and 32d.
  • the work rolls 32a and 32b have different diameters, respectively. Only the lower large-diameter work roll 32b is driven for rotation by a motor, not shown, or the like, and the upper small-diameter work roll 32a is a free roller to which any driving force is not applied.
  • Each stand is provided with well-known work roll benders, not shown, to bend the work rolls 32a and 32b.
  • the top work roller 32a has a small diameter and only the lower work roll 32b is driven. Therefore, a shearing force is applied to the sheet x. Since the upper work roll has a small diameter, the sheet can be rolled in a sufficient draft even if the rolling force is relatively low.
  • the work rolls 31a and 31b of the three stands 31A, 31B and 31C of the front stage are displaced axially as shown in Fig. 1c to correct the crown of the sheet x regardless of thickness and width so that an optimum crown is formed.
  • Edge-drop in the sheet x can be reduced by using a low rolling force by the three stands 32A, 32B and 32C, i.e., the different-diameter-roll mills, of the back stage 32.
  • the hot rolling mill system A provided with the six-stand finishing mill 30 is capable of suppressing the formation of crown and edge-drop and of producing sheets of high dimensional accuracy.
  • a crown of about 50 ⁇ m in an average is formed in a part at 25 mm from the edge of the steel sheet.
  • the formation of pincher in the tail end part of the sheet x can be effectively prevented by using a low rolling force by the three stands 32A, 32B and 32C of the back stage 32 when rolling the sheet by this hot rolling mill system A .
  • a low rolling force When the sheet x is rolled by using such a low rolling force, the application of an asymmetrical force (application of different forces toward the right and the left) to the sheet x can be suppressed to reduce the dislocation of the sheet to the right or to the left. Even if the thickness of the sheet x is as small as 1.2 mm or below, the hot rolling mill system A is able to reduce the frequency of occurrence of pincher and to continue smooth production.
  • the pincher forming frequency ratio is about 3% (three pinchers per 100 sheets).
  • the pincher forming frequency ratio can be limited to values on the order of 0.5% when producing the same steel sheets by the hot rolling mill system A of the present invention, and can be limited to values on the order of 3% when producing 1.0 mm thick, 1220 mm wide steel sheets by the hot rolling mill system A .
  • FIGs. 2a, 2b and 2c show other embodiments of the present invention.
  • a hot rolling mill system B shown in Fig. 2a is provided with a tunnel furnace 21 disposed between the last stand of a rough rolling mill 10 and the first stand 31A of the finishing mill 30.
  • the tunnel furnace 21 is a tunnel-shaped furnace extended along a pass line and is able to heat a sheet with a heating means, such as a burner or the like, provided therein.
  • the last stand of the rough rolling mill 10 and the first stand 31A of the finishing mill 30 are different from each other in sheet feed speed (the sheet feed speed of the former is higher than that of the latter).
  • the temperature of the sheet at the entrance of the finishing mill 30 decreases from the leading end to the tail end of the sheet.
  • the tunnel furnace 21 prevents such a temperature decrease.
  • a rolling force necessary for rolling a sheet that is heated to prevent the temperature decrease is lower than that necessary for rolling a sheet that is not heated. Since the leading end part and the tail end part can be rolled by substantially the same rolling force, the stands of the finishing mill 30, particularly, the different-diameter-roll mills 32A, 32B and 32C of the back stage 32 may be considerably low, which enhances the effect of suppressing edge-drop and pincher. Generally, temperature decrease at the tail end part of the sheet is the greatest.
  • the hot rolling mill system B (similarly, hot rolling mill systems C and D , which will be described later) is capable of reducing the frequency of forming pinchers more effectively than the hot rolling mill system A .
  • the finishing mill 30 of the hot rolling mill system B has seven stands.
  • the three stands 32A, 32B and 32C of the back stage 32, similarly to those of the hot rolling mill system A shown in Fig. 1a, are different-diameter-roll mills.
  • the hot rolling mill system B differs from the hot rolling mill system A shown in Fig. 1a in providing a front stage with four stands 31A, 31B, 31C and 31D provided with CVC rolls.
  • the number of the rolling mills (stands) of the finishing mill 30, similarly to that of the stands of the rough rolling mill 10, may be properly determined according to the thickness and grade of sheet and the speed of production.
  • At least some of the stands of the front stage 31 of the finishing mill 30 may be a well-known pair-cross rolling mill 36 capable of changing the shape of a roll gap as shown in Fig. 3.
  • the pair-cross rolling mill 36 is a well-known rolling mill including a pair of sets of a work roll 36a and a backup roll 36c, and of a work roll 36b and a backup roll 36d, disposed so that the pair of sets are not parallel to each other, the pair of sets cross each other, middle parts of the work rolls 36a and 36b closest to each other, and the positional relation between the pair of sets (angle between the pair of sets) can be changed.
  • the design of the hot rolling mill system may be changed without departing from the scope of the present invention.
  • the stands of the back stage 32 may be different-diameter-roll mills provided with CVC rolls.
  • such changes may be made in the hot rolling mill systems C and D shown in Figs. 2b and 2c and the hot rolling mill system A shown in Fig. 1a.
  • the hot rolling mill system C shown in Fig. 2b is provided with a sheet bar coiler/uncoiler 22 between the last stand of a rough rolling mill 10 and the first stand 31A of the finishing mill 30.
  • the coiler/uncoiler 22 is an apparatus for coiling and uncoiling a sheet (sheet bar), such as Coilbox® commercially available from Steltech Ltd. (Canada). Since the temperature of the sheet is liable to drop before the sheet is fed to the finishing mill 30 as mentioned above, the drop of the temperature of the long sheet is suppressed by coiling the long sheet in a coil, and then the sheet is uncoiled from the coil and is fed to the finishing mill 30 to reduce the drop of the temperature of the sheet. Consequently, the sheet can be rolled for finish rolling by a low rolling force, which is effective in preventing the formation of edge-drop and pincher.
  • the hot rolling mill system D shown in Fig. 2c is provided a coiler/uncoiler 22 similar to that shown in Fig. 1b, and a sheet bar heater 23 disposed behind the coiler/uncoiler 22 and in front of the finishing mill 30.
  • the sheet bar heater 23 heats the leading end part and the tail end part of a sheet with a heating means, such as a burner or the like to raise the temperature of the front and the tail end part of the sheet coiled by the coiler/uncoiler 22 because the temperature of the front and the tail end part is liable to drop.
  • Pincher occurs in the tail end part of the sheet. Therefore, when the tail end part of the sheet is heated by the sheet bar heater 23, the tail end part of the sheet can be rolled by a reduced rolling force, so that the rate of occurrence of pincher can be effectively reduced.
  • the hot rolling mill system according to the present invention exercises the following effects.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
EP99940680A 1998-09-08 1999-09-06 Warmbandwalzwerk Withdrawn EP1033182A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10253161A JP2933923B1 (ja) 1998-09-08 1998-09-08 薄板の熱間圧延機
JP25316198 1998-09-08
PCT/JP1999/004822 WO2000013812A1 (fr) 1998-09-08 1999-09-06 Laminoir a bandes a chaud

Publications (2)

Publication Number Publication Date
EP1033182A1 true EP1033182A1 (de) 2000-09-06
EP1033182A4 EP1033182A4 (de) 2005-06-01

Family

ID=17247391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99940680A Withdrawn EP1033182A4 (de) 1998-09-08 1999-09-06 Warmbandwalzwerk

Country Status (6)

Country Link
EP (1) EP1033182A4 (de)
JP (1) JP2933923B1 (de)
KR (1) KR100396012B1 (de)
CN (1) CN1126613C (de)
TW (1) TW425316B (de)
WO (1) WO2000013812A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002058860A1 (de) * 2001-01-23 2002-08-01 Sms Demag Aktiengesellschaft Walzgerüst zur herstellung planer walzbänder mit gewünschter bandprofilüberhöhung
WO2002074460A1 (fr) * 2001-03-16 2002-09-26 Nakayama Steel Works, Ltd. Laminoir a chaud et procede de laminage a chaud
WO2005028136A1 (de) * 2003-08-22 2005-03-31 Sms Demag Aktiengesellschaft Colibox zwischen vorstrasse und fertigstrasse im warmwalzwerk
EP1547700A1 (de) * 2001-08-03 2005-06-29 Kawasaki Jukogyo Kabushiki Kaisha Einrichtung zum kontinuierlichen warmwalzen
CN101992215B (zh) * 2009-08-13 2012-07-04 宝山钢铁股份有限公司 一种cvc工作辊轴向移动控制方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7076983B2 (en) 2001-03-16 2006-07-18 Nakayama Steel Works, Ltd. Apparatus and method for hot rolling
CN100450653C (zh) * 2006-11-28 2009-01-14 中冶南方工程技术有限公司 防止0.4mm以下的薄板高速轧制工况下带钢颤动的方法
KR101253851B1 (ko) * 2010-12-27 2013-04-12 주식회사 포스코 마무리압연에서 열연 후물재 에지 업 저감 방법 및 장치
DE102012004826A1 (de) * 2012-03-08 2013-09-12 Gm Global Technology Operations, Llc Verfahren zur Herstellung von Profilleisten und Hohlprofilkörpern und Vorrichtung zur Durchführung des Verfahrens
JP2014061528A (ja) * 2012-09-20 2014-04-10 Ihi Corp 連続圧延設備
TWI551366B (zh) * 2013-12-25 2016-10-01 The use of round steel wire rolling forming thin steel sheet and steel fiber forming method
KR101898568B1 (ko) * 2014-03-19 2018-09-13 제이에프이 스틸 가부시키가이샤 고탄소강의 열간 압연 방법
EP3208673B1 (de) 2016-02-22 2019-06-05 Primetals Technologies Austria GmbH Inline-kalibrierung des walzspalts eines walzgerüsts

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JPS62197209A (ja) * 1986-02-25 1987-08-31 Kobe Steel Ltd 板材の熱間圧延におけるキヤンバ制御方法
EP0276743A1 (de) * 1987-01-24 1988-08-03 Hitachi, Ltd. Metallwalzverfahren mit in Axialrichtung verschiebbaren Arbeitswalzen
EP0451874A2 (de) * 1990-04-13 1991-10-16 Hitachi, Ltd. Vier-Walzen-Walzwerk
JPH06106207A (ja) * 1992-09-24 1994-04-19 Kawasaki Steel Corp 鋼片の連続熱間圧延設備
EP0753359A1 (de) * 1995-07-10 1997-01-15 Kawasaki Steel Corporation Verfaren und Vorrichtung zum kontinuierlichen Warmbandfertigwalzen
EP0819481A1 (de) * 1996-07-18 1998-01-21 Kawasaki Steel Corporation Walzverfahren und Walzwerk für Band zur Reduzierung der Kantenanschärfung

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JPS5831242B2 (ja) * 1980-03-17 1983-07-05 三菱重工業株式会社 ペア−クロス式４段圧延機
DE3038865C1 (de) * 1980-10-15 1982-12-23 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschiebbaren Walzen
JPS62137102A (ja) * 1985-12-09 1987-06-20 Nippon Steel Corp 表面性状の良いチタン熱延板の製造方法
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Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS62197209A (ja) * 1986-02-25 1987-08-31 Kobe Steel Ltd 板材の熱間圧延におけるキヤンバ制御方法
EP0276743A1 (de) * 1987-01-24 1988-08-03 Hitachi, Ltd. Metallwalzverfahren mit in Axialrichtung verschiebbaren Arbeitswalzen
EP0451874A2 (de) * 1990-04-13 1991-10-16 Hitachi, Ltd. Vier-Walzen-Walzwerk
JPH06106207A (ja) * 1992-09-24 1994-04-19 Kawasaki Steel Corp 鋼片の連続熱間圧延設備
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002058860A1 (de) * 2001-01-23 2002-08-01 Sms Demag Aktiengesellschaft Walzgerüst zur herstellung planer walzbänder mit gewünschter bandprofilüberhöhung
US7251978B2 (en) 2001-01-23 2007-08-07 Sms Demag Ag Roll stand for producing plane roll strips having a desired strip profile superelevation
CZ298565B6 (cs) * 2001-01-23 2007-11-07 Sms Demag Ag Válcovací stolice k výrobe rovných válcovaných pásu se žádaným prevýšením pásového profilu
KR100819834B1 (ko) * 2001-01-23 2008-04-07 에스엠에스 데마그 악티엔게젤샤프트 원하는 스트립 프로파일 경사면을 갖는 평면 압연 스트립제조용 롤 스탠드
WO2002074460A1 (fr) * 2001-03-16 2002-09-26 Nakayama Steel Works, Ltd. Laminoir a chaud et procede de laminage a chaud
EP1547700A1 (de) * 2001-08-03 2005-06-29 Kawasaki Jukogyo Kabushiki Kaisha Einrichtung zum kontinuierlichen warmwalzen
EP1547700A4 (de) * 2001-08-03 2006-03-29 Kawasaki Heavy Ind Ltd Einrichtung zum kontinuierlichen warmwalzen
WO2005028136A1 (de) * 2003-08-22 2005-03-31 Sms Demag Aktiengesellschaft Colibox zwischen vorstrasse und fertigstrasse im warmwalzwerk
US7942029B2 (en) 2003-08-22 2011-05-17 Sms Siemag Aktiengesellschaft Coil box between roughing train and finishing train in a rolling mill
CN101992215B (zh) * 2009-08-13 2012-07-04 宝山钢铁股份有限公司 一种cvc工作辊轴向移动控制方法

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WO2000013812A1 (fr) 2000-03-16
KR20010031851A (ko) 2001-04-16
TW425316B (en) 2001-03-11
KR100396012B1 (ko) 2003-08-27
JP2000084601A (ja) 2000-03-28
CN1126613C (zh) 2003-11-05
JP2933923B1 (ja) 1999-08-16
EP1033182A4 (de) 2005-06-01
CN1277568A (zh) 2000-12-20

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