EP2412455B1 - Herstellungsverfahren einer stahlplatte - Google Patents

Herstellungsverfahren einer stahlplatte Download PDF

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Publication number
EP2412455B1
EP2412455B1 EP10756268.8A EP10756268A EP2412455B1 EP 2412455 B1 EP2412455 B1 EP 2412455B1 EP 10756268 A EP10756268 A EP 10756268A EP 2412455 B1 EP2412455 B1 EP 2412455B1
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EP
European Patent Office
Prior art keywords
steel plate
cooling
spraying
descaler
pressure
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
EP10756268.8A
Other languages
English (en)
French (fr)
Other versions
EP2412455A4 (de
EP2412455A1 (de
Inventor
Takashi Kuroki
Naoki Nakata
Kenji Hirata
Takayuki Furumai
Yukio Fujii
Motoji Terasaki
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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Publication date
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Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP2412455A1 publication Critical patent/EP2412455A1/de
Publication of EP2412455A4 publication Critical patent/EP2412455A4/de
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Publication of EP2412455B1 publication Critical patent/EP2412455B1/de
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • 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
    • B21B45/04—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 de-scaling, e.g. by brushing
    • B21B45/08—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 de-scaling, e.g. by brushing hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • 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

Definitions

  • Patent Literature 1 discloses a method of performing descaling at least one of just before and just after a final pass of finish rolling, subsequently performing hot leveling, then performing descaling, and starting accelerated cooling.
  • the descaler removes scale produced on each surface of the steel plate after hot leveling of the steel plate by the hot leveler, spraying nozzles of the descaler can be moved closer to the surfaces of the hot-leveled steel plate, thereby improving the descaling performance.
  • the cooling water spraying performance of the descaler for providing a predetermined pressure at the point of impact can be set to low.
  • the inner diameter of each nozzle is preferably 3 to 8 mm. If the inner diameter is less than 3 mm, the flux of water sprayed from the nozzle diminishes and the force of water becomes weak. Whereas, if the nozzle diameter is greater than 8 mm, the flow rate decreases and the force to pass through the remaining water becomes weak.
  • the descaler 4 is configured to remove scale produced on each surface of the steel plate 1 after hot rolling while spraying high-pressure water from a plurality of spraying nozzles directed toward the surface of the steel plate 1 subjected to removal of strain, caused in the steel plate 1, through the first hot leveler 5.
  • the same cooling facility as the upper surface cooling facility was used, except that the facility included no dividing plate.
  • the spraying velocity and water flow rate of rod-like cooling water were 1.5 times as high as those for the upper surface.
  • Example 5 of the present invention in which the distance between the descaler 4 and the cooling equipment 6 was 2.5 m, the spraying pressure of nozzles was 17.7 MPa, the spray flow rate per nozzle was 64 L/min/nozzle, the spraying distance (the distance between each spraying nozzle of the descaler 4 and each surface of the steel plate 1) was 90 mm, the spray angle of nozzle was 40°, the angle between the spray direction and the vertical line was 15°, and the pressure at the point of impact was thereby 2.4 MPa, the releveling rate was 1%, namely, it was very good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Claims (1)

  1. Stahlplatten-Herstellungsverfahren, das einen Heißwalzschritt, einen Heißnivellierungsschritt und einen Kühlschritt umfasst, die ausgeführt werden, um eine Stahlplatte (1) herzustellen, wobei das Verfahren Folgendes umfasst:
    einen Entzunderungsschritt des Versprühens von Kühlwasser auf jede Fläche der Stahlplatte bei einem Druck am Auftreffpunkt von 1,5 MPa oder darüber, wobei der Entzunderungsschritt zwischen dem Heißnivellierungsschritt und dem Kühlschritt ausgeführt wird, wobei, wenn T [K] die Temperatur der Stahlplatte vor dem Kühlen bezeichnet, der Zeitabschnitt t [s] zwischen dem Abschluss des Entzunderungsschritts und dem Start des Kühlschrittes den Ausdruck t≤5,6 x 10-10 x exp(25000/T) erfüllt.
EP10756268.8A 2009-03-25 2010-03-23 Herstellungsverfahren einer stahlplatte Active EP2412455B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009073994 2009-03-25
JP2010006722A JP5614040B2 (ja) 2009-03-25 2010-01-15 厚鋼板の製造設備及び製造方法
PCT/JP2010/055497 WO2010110473A1 (ja) 2009-03-25 2010-03-23 厚鋼板の製造設備及び製造方法

Publications (3)

Publication Number Publication Date
EP2412455A1 EP2412455A1 (de) 2012-02-01
EP2412455A4 EP2412455A4 (de) 2013-05-29
EP2412455B1 true EP2412455B1 (de) 2018-03-14

Family

ID=42781163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10756268.8A Active EP2412455B1 (de) 2009-03-25 2010-03-23 Herstellungsverfahren einer stahlplatte

Country Status (6)

Country Link
US (1) US20120017660A1 (de)
EP (1) EP2412455B1 (de)
JP (1) JP5614040B2 (de)
KR (2) KR20110115163A (de)
CN (1) CN102361704B (de)
WO (1) WO2010110473A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5614040B2 (ja) 2009-03-25 2014-10-29 Ｊｆｅスチール株式会社 厚鋼板の製造設備及び製造方法
RU2592338C2 (ru) * 2011-05-16 2016-07-20 Ниппон Стил Энд Сумикин Инджиниринг Ко., Лтд. Устройство для очистки прокатного валка стана и способ очистки
JP5803270B2 (ja) * 2011-05-24 2015-11-04 Ｊｆｅスチール株式会社 耐圧潰性に優れた高強度耐サワーラインパイプ及びその製造方法
JP5811591B2 (ja) * 2011-05-24 2015-11-11 Ｊｆｅスチール株式会社 耐圧潰性および溶接熱影響部靱性に優れた高強度ラインパイプ及びその製造方法
JP5796351B2 (ja) * 2011-05-24 2015-10-21 Ｊｆｅスチール株式会社 耐圧潰性に優れた高強度耐サワーラインパイプおよびその製造方法
JP5751013B2 (ja) * 2011-05-24 2015-07-22 Ｊｆｅスチール株式会社 耐圧潰性および耐サワー性に優れた高強度ラインパイプの製造方法
JP5751012B2 (ja) * 2011-05-24 2015-07-22 Ｊｆｅスチール株式会社 耐圧潰性および耐サワー性に優れた高強度ラインパイプの製造方法
DE102012214298A1 (de) 2012-08-10 2014-02-13 Sms Siemag Ag Verfahren zur Reinigung und/oder Entzunderung einer Bramme oder eines Vorbandes mittels eines Zunderwäschers und Zunderwäscher
JP5720714B2 (ja) * 2013-03-27 2015-05-20 Ｊｆｅスチール株式会社 厚鋼板の製造方法および製造設備
EP2979770B1 (de) * 2013-03-27 2018-08-22 JFE Steel Corporation Verfahren und vorrichtung zur herstellung dicker stahlplatten
CN103212594A (zh) * 2013-04-08 2013-07-24 张家港联峰钢铁研究所有限公司 自动脱落氧化铁皮盒出口装置
JP6060927B2 (ja) * 2014-03-18 2017-01-18 Ｊｆｅスチール株式会社 鋼板の製造方法
BR112017003566B1 (pt) * 2014-08-26 2022-12-06 Jfe Steel Corporation Método de fabricação de uma placa de aço espessa
BR112017004022B1 (pt) * 2014-08-26 2022-08-02 Jfe Steel Corporation Método de fabricação de placa de aço
CN109317524B (zh) * 2017-07-31 2024-05-07 上海东新冶金技术工程有限公司 热镀锌用光整机高压喷淋装置及其使用方法
KR20220080174A (ko) * 2019-11-25 2022-06-14 제이에프이 스틸 가부시키가이샤 강판의 제조 설비 및 제조 방법
JP7452696B2 (ja) 2021-09-16 2024-03-19 Ｊｆｅスチール株式会社 厚鋼板の製造方法および製造設備

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232207A (ja) 1994-02-24 1995-09-05 Nippon Steel Corp 表面欠陥の少ないオーステナイト系ステンレス鋼板の製造方法
US5884643A (en) 1994-07-18 1999-03-23 Kawasaki Steel Corporation Cleaning method and cleaning apparatus for surface of sheet steel
JP2000271627A (ja) 1999-03-23 2000-10-03 Nippon Steel Corp 厚鋼板の冷却方法および装置
JP2002172415A (ja) 2000-04-18 2002-06-18 Nippon Steel Corp 厚鋼板冷却方法およびその装置
US20120017660A1 (en) 2009-03-25 2012-01-26 Jfe Steel Corporation Steel plate manufacturing facility and manufacturing method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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JPH0238283B2 (ja) * 1983-02-09 1990-08-29 Mitsubishi Heavy Ind Ltd Kohanreikyakusochi
JPH0957327A (ja) 1995-08-22 1997-03-04 Sumitomo Metal Ind Ltd 厚鋼板のスケール除去方法
JPH09253734A (ja) * 1996-03-27 1997-09-30 Nisshin Steel Co Ltd 熱延鋼板の製造方法
JPH10113713A (ja) * 1996-10-09 1998-05-06 Kobe Steel Ltd 制御冷却鋼板の製造方法
JP3770216B2 (ja) * 2002-08-08 2006-04-26 Ｊｆｅスチール株式会社 熱延鋼帯の冷却装置および熱延鋼帯の製造方法ならびに熱延鋼帯製造ライン
KR100642656B1 (ko) * 2002-08-08 2006-11-03 제이에프이 스틸 가부시키가이샤 열연강대의 냉각장치, 열연강대의 제조방법 및 열연강대의제조라인
JP4029871B2 (ja) * 2004-07-22 2008-01-09 住友金属工業株式会社 鋼板の冷却装置、熱延鋼板の製造装置及び製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232207A (ja) 1994-02-24 1995-09-05 Nippon Steel Corp 表面欠陥の少ないオーステナイト系ステンレス鋼板の製造方法
US5884643A (en) 1994-07-18 1999-03-23 Kawasaki Steel Corporation Cleaning method and cleaning apparatus for surface of sheet steel
JP2000271627A (ja) 1999-03-23 2000-10-03 Nippon Steel Corp 厚鋼板の冷却方法および装置
JP2002172415A (ja) 2000-04-18 2002-06-18 Nippon Steel Corp 厚鋼板冷却方法およびその装置
US20120017660A1 (en) 2009-03-25 2012-01-26 Jfe Steel Corporation Steel plate manufacturing facility and manufacturing method

Also Published As

Publication number Publication date
US20120017660A1 (en) 2012-01-26
KR20140004265A (ko) 2014-01-10
WO2010110473A1 (ja) 2010-09-30
KR101563206B1 (ko) 2015-10-26
EP2412455A4 (de) 2013-05-29
EP2412455A1 (de) 2012-02-01
JP2010247228A (ja) 2010-11-04
CN102361704A (zh) 2012-02-22
JP5614040B2 (ja) 2014-10-29
KR20110115163A (ko) 2011-10-20
CN102361704B (zh) 2015-03-25

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