IN2012DN00945A - - Google Patents

Info

Publication number
IN2012DN00945A
IN2012DN00945A IN945DEN2012A IN2012DN00945A IN 2012DN00945 A IN2012DN00945 A IN 2012DN00945A IN 945DEN2012 A IN945DEN2012 A IN 945DEN2012A IN 2012DN00945 A IN2012DN00945 A IN 2012DN00945A
Authority
IN
India
Prior art keywords
cooling
steel strip
hot
rolled steel
finishing rolling
Prior art date
Application number
Inventor
Yoshii Isao
Hishinuma Noriyuki
Furukawa Yoshiyuki
Ishihara Satoru
Original Assignee
Nippon Steel & Sumitomo Metal Corp
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
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44167383&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN2012DN00945(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of IN2012DN00945A publication Critical patent/IN2012DN00945A/en

Links

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
    • 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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • 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
    • B21B37/76—Cooling control on the run-out table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Abstract

The present invention provides a method for cooling a hot-rolled steel strip after a finishing rolling in which a transportation speed varies, the method including: setting a transportation-speed changing schedule on the basis of a temperature of a steel strip before the finishing rolling and a condition of the finishing rolling; performing a first cooling in which the hot-rolled steel strip is cooled under a film boiling state in a first cooling section; performing a second cooling in which the hot-rolled steel strip is cooled with a water amount density of not less than 2 m3/min/m2 in a second cooling section; and coiling the hot-rolled steel strip, in which a cooling condition is controlled in the first cooling so as to satisfy 0.8 ≤ (T2a' - T2a)/ΔTx ≤ 1.2.
IN945DEN2012 2009-12-16 2010-12-16 IN2012DN00945A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009285121 2009-12-16
PCT/JP2010/072639 WO2011074632A1 (en) 2009-12-16 2010-12-16 Method for cooling hot-rolled steel plate

Publications (1)

Publication Number Publication Date
IN2012DN00945A true IN2012DN00945A (en) 2015-04-10

Family

ID=44167383

Family Applications (1)

Application Number Title Priority Date Filing Date
IN945DEN2012 IN2012DN00945A (en) 2009-12-16 2010-12-16

Country Status (9)

Country Link
US (1) US8359894B2 (en)
EP (1) EP2465620B1 (en)
JP (1) JP4938159B2 (en)
KR (1) KR101211273B1 (en)
CN (1) CN102481610B (en)
BR (1) BR112012004729B1 (en)
IN (1) IN2012DN00945A (en)
TW (1) TWI379010B (en)
WO (1) WO2011074632A1 (en)

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FI20070622A7 (en) * 2007-08-17 2009-04-15 Outokumpu Oy Method and apparatus for controlling uniformity in the cooling of stainless steel strip
US9566625B2 (en) 2011-06-07 2017-02-14 Nippon Steel & Sumitomo Metal Corporation Apparatus for cooling hot-rolled steel sheet
US9186710B2 (en) 2011-06-07 2015-11-17 Nippon Steel & Sumitomo Metal Corporation Method for cooling hot-rolled steel sheet
US9211574B2 (en) 2011-07-27 2015-12-15 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing steel sheet
KR101376565B1 (en) * 2011-12-15 2014-04-02 (주)포스코 Method and apparatus for controlling the temperature of strip in the rapid cooling section of continuous annealing line
KR101498843B1 (en) * 2012-12-06 2015-03-04 신닛테츠스미킨 카부시키카이샤 Hot rolled steel sheet cooling device
JP5741634B2 (en) * 2013-04-03 2015-07-01 Ｊｆｅスチール株式会社 Method and apparatus for cooling control of hot-rolled steel sheet
CN104043660B (en) * 2013-09-26 2015-09-30 北大方正集团有限公司 A kind of production technology of non-hardened and tempered steel
CN104001742A (en) * 2014-05-21 2014-08-27 中冶南方工程技术有限公司 Method for achieving controlled cooling on rolled pieces between and after bar finishing mill units
US10465262B2 (en) * 2014-07-24 2019-11-05 Nippon Steel Corporation Method for cooling steel strip and cooling apparatus
CN104438356B (en) * 2014-09-23 2017-04-05 北京首钢股份有限公司 A kind of method for improving Thin container plate edge shape wave
CN104668295B (en) * 2015-02-13 2017-04-12 中冶南方工程技术有限公司 Control method and control device of rod and wire production line temperature control rolling process
EP3061535B1 (en) 2015-02-27 2019-02-27 Primetals Technologies Austria GmbH Reel device with asymmetric cooling of the reeled strip
JP6245766B2 (en) * 2015-05-26 2017-12-13 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Hot-rolled steel plate cooling apparatus and mask member position adjusting method
JP6627609B2 (en) * 2016-03-30 2020-01-08 日本製鉄株式会社 Cooling control method and cooling device
US11993823B2 (en) 2016-05-10 2024-05-28 United States Steel Corporation High strength annealed steel products and annealing processes for making the same
JP7186694B2 (en) 2016-05-10 2022-12-09 ユナイテッド ステイツ スチール コーポレイション High-strength steel products and annealing processes for making such products
US11560606B2 (en) 2016-05-10 2023-01-24 United States Steel Corporation Methods of producing continuously cast hot rolled high strength steel sheet products
JP6583561B2 (en) * 2016-08-09 2019-10-02 東芝三菱電機産業システム株式会社 Outlet temperature control system of rolling mill
JP6477919B2 (en) * 2016-08-22 2019-03-06 Ｊｆｅスチール株式会社 Method for cooling high-temperature metal and method for producing hot-dip galvanized steel strip
US11701697B2 (en) * 2018-09-19 2023-07-18 Nippon Steel Corporation Cooling device for hot-rolled steel sheet and cooling method of hot-rolled steel sheet
CN113825846B (en) 2019-05-07 2024-08-23 美国钢铁公司 Method for producing continuous casting hot rolled high strength steel sheet products
WO2021026437A1 (en) 2019-08-07 2021-02-11 United States Steel Corporation High ductility zinc-coated steel sheet products
EP4018005A1 (en) 2019-08-19 2022-06-29 United States Steel Corporation High strength steel products and annealing processes for making the same
CN110624960B (en) * 2019-09-24 2021-02-09 张家港宏昌钢板有限公司 A strip cooling control method combining ultrafast cooling and conventional laminar cooling
CN114618895B (en) * 2022-04-11 2022-11-08 福建三宝特钢有限公司 Hot rolled strip rolling system based on dynamic adjustment
CN115846426A (en) * 2022-12-30 2023-03-28 浦项(张家港)不锈钢股份有限公司 Control method for hot rolling laminar cooling coiling temperature
CN116748313B (en) * 2023-06-01 2025-09-05 邯郸钢铁集团有限责任公司 A temperature control method for hot-rolled thick-gauge wheel steel
US20260078475A1 (en) 2024-09-16 2026-03-19 United States Steel Corporation Double annealed steel sheet products with improved hole expansion ratios

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Also Published As

Publication number Publication date
BR112012004729A2 (en) 2016-03-15
JP4938159B2 (en) 2012-05-23
EP2465620A1 (en) 2012-06-20
TW201130990A (en) 2011-09-16
EP2465620A4 (en) 2012-10-03
US20120151981A1 (en) 2012-06-21
WO2011074632A1 (en) 2011-06-23
TWI379010B (en) 2012-12-11
CN102481610A (en) 2012-05-30
KR20120038545A (en) 2012-04-23
BR112012004729B1 (en) 2021-07-20
JPWO2011074632A1 (en) 2013-04-25
CN102481610B (en) 2014-08-06
EP2465620B1 (en) 2013-07-03
US8359894B2 (en) 2013-01-29
KR101211273B1 (en) 2012-12-11

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