ATE331816T1 - METHOD AND DEVICE FOR ACCELERATED COOLING IN THE CONTINUOUS ANNEALING PROCESS - Google Patents

METHOD AND DEVICE FOR ACCELERATED COOLING IN THE CONTINUOUS ANNEALING PROCESS

Info

Publication number
ATE331816T1
ATE331816T1 AT02447157T AT02447157T ATE331816T1 AT E331816 T1 ATE331816 T1 AT E331816T1 AT 02447157 T AT02447157 T AT 02447157T AT 02447157 T AT02447157 T AT 02447157T AT E331816 T1 ATE331816 T1 AT E331816T1
Authority
AT
Austria
Prior art keywords
cooling
operations
strip
rapid
slow
Prior art date
Application number
AT02447157T
Other languages
German (de)
Inventor
Philippe Klinkenberg
Pierre Simon
Paul Warnotte
Denis Bouqueneau
Original Assignee
Centre Rech Metallurgique
Cockerill Rech & Dev
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 Centre Rech Metallurgique, Cockerill Rech & Dev filed Critical Centre Rech Metallurgique
Application granted granted Critical
Publication of ATE331816T1 publication Critical patent/ATE331816T1/en

Links

Classifications

    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • C21D9/565—Sealing arrangements
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/63—Quenching devices for bath quenching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

Continuous cooling of steel strip (S) consists of subjecting the strip to slow cooling with boiling water followed by rapid quenching in compartments. Between these two cooling operations, the strip is passed through an airlock or sealing device to assure a controlled transition, between the first slow cooling and the second rapid cooling, whilst reducing water losses between the two operations. <??>The continuous cooling of steel strip consists of subjecting the strip to the following operations: <??>(a) a first cooling of the boiling water type; <??>(b) a second cooling with a rapid water or quenching operation; <??>(c) between these two cooling operations, the strip is passed through an airlock or sealing device to assure a controlled transition, preferably by pressure and temperature, between the first slow cooling and the second rapid cooling, whilst reducing water losses between the two cooling operations. <??>The succession of these three operations is operated so that the duration of flow between two consecutive operations is as short as possible. <??>Independent claims are also included for the following: <??>(a) a device for putting this method of cooling into operation; <??>(b) a method for the regulation of the device by controlling the temperature and pressure in each compartment of the cooling device.
AT02447157T 2001-10-05 2002-08-20 METHOD AND DEVICE FOR ACCELERATED COOLING IN THE CONTINUOUS ANNEALING PROCESS ATE331816T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2001/0653A BE1014418A3 (en) 2001-10-05 2001-10-05 Method and device for accelerated cooling in continuous annealing.

Publications (1)

Publication Number Publication Date
ATE331816T1 true ATE331816T1 (en) 2006-07-15

Family

ID=3897114

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02447157T ATE331816T1 (en) 2001-10-05 2002-08-20 METHOD AND DEVICE FOR ACCELERATED COOLING IN THE CONTINUOUS ANNEALING PROCESS

Country Status (5)

Country Link
EP (1) EP1300478B1 (en)
AT (1) ATE331816T1 (en)
BE (1) BE1014418A3 (en)
DE (1) DE60212778T2 (en)
ES (1) ES2267970T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1538228A1 (en) * 2003-12-01 2005-06-08 R &amp; D du groupe Cockerill-Sambre Cooling process and device for a steel sheet
WO2010049600A1 (en) * 2008-10-31 2010-05-06 Siemens Vai Metals Technologies Sas Furnace for a continuously-running steel strip thermal processing plant, and associated method
CN102534178B (en) * 2012-01-17 2013-06-05 江苏宝力重工科技有限公司 Water-seal cooling device for non-oriented silicon steel strip
CN104451117A (en) * 2014-09-23 2015-03-25 中冶赛迪工程技术股份有限公司 Quenching plate shape control method and device
JP6308287B2 (en) 2015-12-28 2018-04-11 Ｊｆｅスチール株式会社 Rapid quenching apparatus and quench quenching method
WO2021024021A1 (en) 2019-08-06 2021-02-11 Arcelormittal Device for cooling a steel strip
CN113430360A (en) * 2021-06-07 2021-09-24 唐山钢铁集团高强汽车板有限公司 Control method for annealing transition of high-strength steel plate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333116A (en) * 1970-12-15 1973-10-10 Nippon Kokan Kk Continuous annealing plant for steel strip
BE887507A (en) * 1981-02-12 1981-06-01 Centre Rech Metallurgique IMPROVEMENTS IN PROCESSES OF CONTINUOUS HEAT TREATMENT OF STEEL SHEETS
KR100541003B1 (en) * 1998-03-26 2006-01-10 제이에프이 엔지니어링 가부시키가이샤 Cooling method of continuous heat treatment furnace and continuous heat treatment furnace
JP3514130B2 (en) * 1998-08-27 2004-03-31 Ｊｆｅスチール株式会社 Vertical cooling device and cooling method for steel strip
BE1012215A3 (en) * 1998-10-01 2000-07-04 Centre Rech Metallurgique Cooling process of continuous sheet steel and device for its implementation.

Also Published As

Publication number Publication date
BE1014418A3 (en) 2003-10-07
DE60212778D1 (en) 2006-08-10
EP1300478A1 (en) 2003-04-09
EP1300478B1 (en) 2006-06-28
ES2267970T3 (en) 2007-03-16
DE60212778T2 (en) 2007-06-28

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties