EP2837700A4 - Method for lowering dew point of ambient gas within annealing furnace, device thereof, and method for producing cold-rolled annealed steel sheet - Google Patents

Method for lowering dew point of ambient gas within annealing furnace, device thereof, and method for producing cold-rolled annealed steel sheet

Info

Publication number
EP2837700A4
EP2837700A4 EP13776255.5A EP13776255A EP2837700A4 EP 2837700 A4 EP2837700 A4 EP 2837700A4 EP 13776255 A EP13776255 A EP 13776255A EP 2837700 A4 EP2837700 A4 EP 2837700A4
Authority
EP
European Patent Office
Prior art keywords
lowering
steel sheet
dew point
annealing furnace
ambient gas
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
EP13776255.5A
Other languages
German (de)
French (fr)
Other versions
EP2837700B1 (en
EP2837700A1 (en
Inventor
Takamasa Fujii
Masato Iri
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
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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP2837700A1 publication Critical patent/EP2837700A1/en
Publication of EP2837700A4 publication Critical patent/EP2837700A4/en
Application granted granted Critical
Publication of EP2837700B1 publication Critical patent/EP2837700B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • 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
    • F27D17/004—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F27D2007/063—Special atmospheres, e.g. high pressure atmospheres

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)
EP13776255.5A 2012-04-09 2013-04-05 Method for lowering dew point of atmosphere gas within annealing furnace, device thereof, and method for producing cold-rolled annealed steel sheet Active EP2837700B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012088089 2012-04-09
PCT/JP2013/002353 WO2013153791A1 (en) 2012-04-09 2013-04-05 Method for lowering dew point of ambient gas within annealing furnace, device thereof, and method for producing cold-rolled annealed steel sheet

Publications (3)

Publication Number Publication Date
EP2837700A1 EP2837700A1 (en) 2015-02-18
EP2837700A4 true EP2837700A4 (en) 2015-12-02
EP2837700B1 EP2837700B1 (en) 2019-06-05

Family

ID=49327376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13776255.5A Active EP2837700B1 (en) 2012-04-09 2013-04-05 Method for lowering dew point of atmosphere gas within annealing furnace, device thereof, and method for producing cold-rolled annealed steel sheet

Country Status (6)

Country Link
US (1) US20150114528A1 (en)
EP (1) EP2837700B1 (en)
JP (1) JP5742950B2 (en)
KR (1) KR101564870B1 (en)
CN (1) CN104245972B (en)
WO (1) WO2013153791A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5874818B2 (en) * 2012-04-09 2016-03-02 Ｊｆｅスチール株式会社 Method for reducing dew point of atmospheric gas in annealing furnace, apparatus therefor, and method for producing cold-rolled annealed steel sheet
US10233526B2 (en) * 2012-12-04 2019-03-19 Jfe Steel Corporation Facility having a continuous annealing furnace and a galvanization bath and method for continuously manufacturing hot-dip galvanized steel sheet
CN105018714B (en) * 2014-04-17 2017-02-22 宝山钢铁股份有限公司 Method for humidifying atmosphere in continuous annealing furnace
JP6008007B2 (en) * 2015-03-23 2016-10-19 Ｊｆｅスチール株式会社 Continuous hot dip galvanizing apparatus and method for producing hot dip galvanized steel sheet
CN109990569B (en) * 2019-04-09 2020-08-11 中冶赛迪工程技术股份有限公司 Annealing furnace drying method based on cooling and dehumidifying
JP7402372B1 (en) * 2023-06-06 2023-12-20 日本碍子株式会社 heat treatment furnace

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1297410A (en) * 1969-11-28 1972-11-22 Aichelin Fa J A process of operating a through flow industrial furnace with a heated connecting space, and a through-flow industrial furnace equipped to carry out this process
EP0976842A2 (en) * 1998-07-28 2000-02-02 Kawasaki Steel Corporation Box annealing furnace, method for annealing metal sheet using the same, and annealed metal sheet

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62290830A (en) 1986-06-11 1987-12-17 Nisshin Steel Co Ltd Continuous annealing method for steel strip and annealing furnace therefor
JP2670134B2 (en) * 1989-03-08 1997-10-29 川崎製鉄株式会社 Atmosphere gas control method in vertical continuous bright annealing furnace for stainless steel strip
JP2567113B2 (en) * 1989-04-05 1996-12-25 日本冶金工業株式会社 Bright annealing furnace
JPH10176225A (en) * 1996-12-13 1998-06-30 Daido Steel Co Ltd Continuous annealing furnace of metallic strip
JPH11124622A (en) * 1997-10-21 1999-05-11 Daido Steel Co Ltd Heat treatment
JP2000104123A (en) * 1998-07-28 2000-04-11 Kawasaki Steel Corp Annealed metallic plate, production thereof and box annealing furnace
JP4123690B2 (en) 2000-06-20 2008-07-23 住友金属工業株式会社 Method for supplying atmospheric gas into continuous annealing furnace
DE102009006384A1 (en) * 2009-01-28 2010-08-19 Uhde Gmbh Method for supplying an entrainment gasification reactor with fuel from a reservoir
CN201660671U (en) * 2010-04-21 2010-12-01 山西太钢不锈钢股份有限公司 Device for reducing hydrogen dew points of annealing furnace
JP5071551B2 (en) * 2010-12-17 2012-11-14 Ｊｆｅスチール株式会社 Continuous annealing method for steel strip, hot dip galvanizing method
JP5874818B2 (en) * 2012-04-09 2016-03-02 Ｊｆｅスチール株式会社 Method for reducing dew point of atmospheric gas in annealing furnace, apparatus therefor, and method for producing cold-rolled annealed steel sheet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1297410A (en) * 1969-11-28 1972-11-22 Aichelin Fa J A process of operating a through flow industrial furnace with a heated connecting space, and a through-flow industrial furnace equipped to carry out this process
EP0976842A2 (en) * 1998-07-28 2000-02-02 Kawasaki Steel Corporation Box annealing furnace, method for annealing metal sheet using the same, and annealed metal sheet

Also Published As

Publication number Publication date
KR101564870B1 (en) 2015-10-30
JP5742950B2 (en) 2015-07-01
KR20140139590A (en) 2014-12-05
WO2013153791A1 (en) 2013-10-17
EP2837700B1 (en) 2019-06-05
JPWO2013153791A1 (en) 2015-12-17
CN104245972B (en) 2016-03-16
CN104245972A (en) 2014-12-24
US20150114528A1 (en) 2015-04-30
EP2837700A1 (en) 2015-02-18

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