EP1279445A4 - Hot rolling mill and hot rolling method - Google Patents

Hot rolling mill and hot rolling method

Info

Publication number
EP1279445A4
EP1279445A4 EP02716450A EP02716450A EP1279445A4 EP 1279445 A4 EP1279445 A4 EP 1279445A4 EP 02716450 A EP02716450 A EP 02716450A EP 02716450 A EP02716450 A EP 02716450A EP 1279445 A4 EP1279445 A4 EP 1279445A4
Authority
EP
European Patent Office
Prior art keywords
hot rolling
diameter
mills
pair
stands
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
EP02716450A
Other languages
German (de)
French (fr)
Other versions
EP1279445B1 (en
EP1279445A1 (en
Inventor
Ichiro Chikushi
Ryuro Kurahashi
Toshiharu Morimoto
Takashi Ohtani
Kazuaki Hakomori
Shinji Takaoka
Masanori Takahashi
Akio Adachi
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
Priority claimed from JP2001077293A external-priority patent/JP3418738B2/en
Priority claimed from JP2001287427A external-priority patent/JP3413183B2/en
Priority claimed from JP2001287428A external-priority patent/JP3413184B2/en
Application filed by Nakayama Steel Works Ltd, Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Nakayama Steel Works Ltd
Publication of EP1279445A1 publication Critical patent/EP1279445A1/en
Publication of EP1279445A4 publication Critical patent/EP1279445A4/en
Application granted granted Critical
Publication of EP1279445B1 publication Critical patent/EP1279445B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • 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
    • 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
    • B21B2269/02—Roll bending; vertical bending of rolls
    • B21B2269/04—Work roll bending
    • 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
    • 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
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or 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
    • B21B45/002—Increasing friction between work and working rolls by using friction increasing substance
    • 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
    • B21B45/0242—Lubricants
    • 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
    • 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
    • B21B45/0263—Lubricating devices using solid lubricants
    • 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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids
    • B21B45/0281—Cleaning devices removing liquids removing coolants
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Lubricants (AREA)

Abstract

The hot rolling apparatus of the present invention has a mill arranged on the preceding stage, mills of a plurality of stands arranged on the later stage which are different-diameter roll mills including a pair of different-diameter work rolls having an equivalent roll diameter of less than 600 mm or minimum-diameter roll mills including a pair of work rolls having a diameter of less than 600 mm, and a cooling unit for cooling steel to be rolled which is arranged on each exit side of the mills of at least two stands on the later stage. The hot rolling apparatus can smoothly manufacture hot rolled plates of fine-particle steel. <IMAGE>
EP02716450A 2001-03-16 2002-01-29 Hot rolling mill and hot rolling method Expired - Lifetime EP1279445B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2001077293 2001-03-16
JP2001077293A JP3418738B2 (en) 2001-03-16 2001-03-16 Hot rolling mill and method for producing fine-grained steel
JP2001287427A JP3413183B2 (en) 2001-09-20 2001-09-20 Continuous hot rolling method and continuous hot rolling equipment
JP2001287427 2001-09-20
JP2001287428 2001-09-20
JP2001287428A JP3413184B2 (en) 2001-09-20 2001-09-20 Continuous hot rolling method and continuous hot rolling equipment
PCT/JP2002/000667 WO2002074460A1 (en) 2001-03-16 2002-01-29 Hot rolling mill and hot rolling method

Publications (3)

Publication Number Publication Date
EP1279445A1 EP1279445A1 (en) 2003-01-29
EP1279445A4 true EP1279445A4 (en) 2004-03-24
EP1279445B1 EP1279445B1 (en) 2005-10-26

Family

ID=27346273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02716450A Expired - Lifetime EP1279445B1 (en) 2001-03-16 2002-01-29 Hot rolling mill and hot rolling method

Country Status (7)

Country Link
EP (1) EP1279445B1 (en)
KR (1) KR20020093881A (en)
CN (1) CN1275711C (en)
AT (1) ATE307687T1 (en)
DE (1) DE60206851T2 (en)
TW (1) TW565474B (en)
WO (1) WO2002074460A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101474633B (en) * 2009-01-20 2011-01-05 北京科技大学 Tandem rolling equipment with different roller diameters for magnesium alloy thin coiled stock
KR101443991B1 (en) * 2009-10-21 2014-09-23 도시바 미쓰비시덴키 산교시스템 가부시키가이샤 Control setting device and control setting method
CN102834191B (en) * 2010-03-31 2017-03-29 新日铁住金株式会社 The manufacture device and manufacture method of hot rolled steel plate
CN102303052B (en) * 2011-07-21 2013-09-18 中冶东方工程技术有限公司 Intermediate additional cooling equipment and method for hot continuous rolling plate band
DE102013107010A1 (en) * 2013-07-03 2015-01-22 Thyssenkrupp Steel Europe Ag Plant and method for hot rolling steel strip
CN105916603B (en) * 2013-12-24 2018-09-07 安赛乐米塔尔公司 Hot-rolling method
DE102017220891A1 (en) * 2017-11-22 2019-05-23 Sms Group Gmbh Method for cooling a metallic material and cooling beam
CN112912185B (en) * 2018-11-13 2023-08-01 松下知识产权经营株式会社 Rolling device and control device
CN109513746A (en) * 2018-12-05 2019-03-26 德龙钢铁有限公司 A kind of hot-strip method and rough rolling device for small dimension continuous casting billet
EP3670011B1 (en) * 2018-12-21 2022-09-28 Primetals Technologies Austria GmbH Cooling of metal strip in a rolling stand

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126907U (en) * 1980-02-27 1981-09-26
JPH0494802A (en) * 1990-08-13 1992-03-26 Nippon Steel Corp High draft hot rolling mill
JP3279335B2 (en) * 1992-03-23 2002-04-30 新日本製鐵株式会社 Manufacturing method of high strength and high toughness structural steel sheet
JP2845097B2 (en) * 1993-03-18 1999-01-13 株式会社日立製作所 Hot steel plate rolling equipment and rolling method
JPH10180338A (en) * 1996-12-24 1998-07-07 Kawasaki Steel Corp Scale flaw preventing method in hot finishing rolling
DE19725434C2 (en) * 1997-06-16 1999-08-19 Schloemann Siemag Ag Process for rolling hot wide strip in a CSP plant
JPH1171615A (en) * 1997-08-29 1999-03-16 Nippon Steel Corp Production of thick steel plate excellent in low temperature toughness
JP2933923B1 (en) * 1998-09-08 1999-08-16 川崎重工業株式会社 Hot strip mill
JP2000084611A (en) * 1998-09-08 2000-03-28 Nippon Steel Corp Method and device for cooling control of hot strip
JP2000197909A (en) * 1998-10-28 2000-07-18 Nippon Steel Corp Solid lubricating method in hot rolling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
ATE307687T1 (en) 2005-11-15
TW565474B (en) 2003-12-11
DE60206851D1 (en) 2005-12-01
EP1279445B1 (en) 2005-10-26
DE60206851T2 (en) 2006-04-20
KR20020093881A (en) 2002-12-16
CN1458867A (en) 2003-11-26
WO2002074460A1 (en) 2002-09-26
EP1279445A1 (en) 2003-01-29
CN1275711C (en) 2006-09-20

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