JPS55110739A - Method for cooling strip steel in continuous annealing process - Google Patents

Method for cooling strip steel in continuous annealing process

Info

Publication number
JPS55110739A
JPS55110739A JP1723279A JP1723279A JPS55110739A JP S55110739 A JPS55110739 A JP S55110739A JP 1723279 A JP1723279 A JP 1723279A JP 1723279 A JP1723279 A JP 1723279A JP S55110739 A JPS55110739 A JP S55110739A
Authority
JP
Japan
Prior art keywords
strip steel
water
steel
boiling range
film
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
JP1723279A
Other languages
Japanese (ja)
Other versions
JPS5839210B2 (en
Inventor
Kazuhide Nakaoka
Akihiko Nishimoto
Masaki Omura
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP1723279A priority Critical patent/JPS5839210B2/en
Publication of JPS55110739A publication Critical patent/JPS55110739A/en
Publication of JPS5839210B2 publication Critical patent/JPS5839210B2/en
Expired legal-status Critical Current

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
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Abstract

PURPOSE:To provide a good form to a cooled strip steel in water quenching of continuously annealed strip steel by a method wherein the strip steel is cooled in warm water at a specific temperature from film boiling range to nuclear boiling range, then boiling film is removed, immediately before or after entering nuclear boiling range, using water jet stream. CONSTITUTION:Recrystallized, high-temperature strip steel 1 is quenched with water by first cooling in static water at 60 deg.C above the barrier plate 4 in tank 3 until the steel 1 reaches 200-550 deg.C at which the state is film to nuclear boiling range. After the steel 1 passes through the barrier plate 4, immediately before or after nuclear boiling range, a spray device 5 is used to inject water jet stream on both surface of the strip 1 to remove boiling film and to cool the steel to the temperature of water. This prevents defective shape including corrugated edge, thereby preventing yield reduction of strip steel due to faulty shape.
JP1723279A 1979-02-19 1979-02-19 Cooling method of steel strip during continuous annealing Expired JPS5839210B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1723279A JPS5839210B2 (en) 1979-02-19 1979-02-19 Cooling method of steel strip during continuous annealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1723279A JPS5839210B2 (en) 1979-02-19 1979-02-19 Cooling method of steel strip during continuous annealing

Publications (2)

Publication Number Publication Date
JPS55110739A true JPS55110739A (en) 1980-08-26
JPS5839210B2 JPS5839210B2 (en) 1983-08-29

Family

ID=11938193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1723279A Expired JPS5839210B2 (en) 1979-02-19 1979-02-19 Cooling method of steel strip during continuous annealing

Country Status (1)

Country Link
JP (1) JPS5839210B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152425A (en) * 1981-02-12 1982-09-20 Centre Rech Metallurgique Improvement on steel plate continuous treatment
WO1983000881A1 (en) * 1981-08-28 1983-03-17 Goto, Masayuki Method of cooling metallic strip
EP1538228A1 (en) * 2003-12-01 2005-06-08 R & D du groupe Cockerill-Sambre Cooling process and device for a steel sheet
JP2006316349A (en) * 2005-04-12 2006-11-24 Nippon Steel Corp Water cooling method for heated steel material and steel material obtained with the water cooling method
JP2012177145A (en) * 2011-02-25 2012-09-13 Jfe Steel Corp Method and device for producing high strength cold rolled steel sheet
JP2015038234A (en) * 2013-08-19 2015-02-26 Ｊｆｅスチール株式会社 Method and installation for production of steel strip

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0236488Y2 (en) * 1984-12-14 1990-10-04
JPH0319367Y2 (en) * 1985-12-23 1991-04-24

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152425A (en) * 1981-02-12 1982-09-20 Centre Rech Metallurgique Improvement on steel plate continuous treatment
JPS6256214B2 (en) * 1981-02-12 1987-11-25 Santoru Do Rusherushu Metaryurujiiku
WO1983000881A1 (en) * 1981-08-28 1983-03-17 Goto, Masayuki Method of cooling metallic strip
EP1538228A1 (en) * 2003-12-01 2005-06-08 R & D du groupe Cockerill-Sambre Cooling process and device for a steel sheet
WO2005054524A1 (en) * 2003-12-01 2005-06-16 Usinor S.A. Method and device for cooling a steel strip
CN100465303C (en) * 2003-12-01 2009-03-04 阿塞洛法国公司 Cooling process and device for a steel sheet
US7645417B2 (en) 2003-12-01 2010-01-12 Arcelor France Method and device for cooling a steel strip
JP2006316349A (en) * 2005-04-12 2006-11-24 Nippon Steel Corp Water cooling method for heated steel material and steel material obtained with the water cooling method
JP2012177145A (en) * 2011-02-25 2012-09-13 Jfe Steel Corp Method and device for producing high strength cold rolled steel sheet
JP2015038234A (en) * 2013-08-19 2015-02-26 Ｊｆｅスチール株式会社 Method and installation for production of steel strip

Also Published As

Publication number Publication date
JPS5839210B2 (en) 1983-08-29

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