JPS57104631A - Method for controlling plate width in continuous heating furnace for steel strip - Google Patents

Method for controlling plate width in continuous heating furnace for steel strip

Info

Publication number
JPS57104631A
JPS57104631A JP18161780A JP18161780A JPS57104631A JP S57104631 A JPS57104631 A JP S57104631A JP 18161780 A JP18161780 A JP 18161780A JP 18161780 A JP18161780 A JP 18161780A JP S57104631 A JPS57104631 A JP S57104631A
Authority
JP
Japan
Prior art keywords
width
steel strip
heating furnace
value
strip
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
JP18161780A
Other languages
Japanese (ja)
Other versions
JPS6146527B2 (en
Inventor
Yukio Matsuda
Chiharu Hoshi
Takeshi Masui
Yasuo Shimada
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP18161780A priority Critical patent/JPS57104631A/en
Publication of JPS57104631A publication Critical patent/JPS57104631A/en
Publication of JPS6146527B2 publication Critical patent/JPS6146527B2/ja
Granted 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

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)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To control the width of a steel strip to a target value with high accuracy by measuring the width of the steel strip at the inlet of a continuous heating furnace, comparing the same with the target width value, and controlling the tension of the steel strip in the furnace in accordance with the difference thereof in heat-treating the steel strip in said furnace. CONSTITUTION:In heat-treating a steel strip 2 by passing the same through a heating furnace 1 such as continuous annealing furnace, the width of the strip 2 is measured with a steel strip width gage 7 at the inlet of the heating furnace, and its measured value B is inputted to a comparator 8, by which it is compared with a target width value B0. The compared differential value DELTAb thereof is taken out as an output signal and is put into a tension controller 9' by which the tension of a dancer roll 4 corresponding to DELTAb is operated. In accordance with the operated value thereof, a driving device moving the roll 4 vertically is operated to control the tension of the strip 2, whereby the width of the strip 2 is controlled. Or, further, the draft of the leveler in the heating furnace is controlled by the DELTAb signal, whereby the width control is much more improved.
JP18161780A 1980-12-22 1980-12-22 Method for controlling plate width in continuous heating furnace for steel strip Granted JPS57104631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18161780A JPS57104631A (en) 1980-12-22 1980-12-22 Method for controlling plate width in continuous heating furnace for steel strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18161780A JPS57104631A (en) 1980-12-22 1980-12-22 Method for controlling plate width in continuous heating furnace for steel strip

Publications (2)

Publication Number Publication Date
JPS57104631A true JPS57104631A (en) 1982-06-29
JPS6146527B2 JPS6146527B2 (en) 1986-10-15

Family

ID=16103922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18161780A Granted JPS57104631A (en) 1980-12-22 1980-12-22 Method for controlling plate width in continuous heating furnace for steel strip

Country Status (1)

Country Link
JP (1) JPS57104631A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009119475A (en) * 2007-11-12 2009-06-04 Nisshin Steel Co Ltd Method of monitoring variation amount of plate width in continuous plating line
CN102936646A (en) * 2012-11-20 2013-02-20 上海实达精密不锈钢有限公司 Tension removing device for precise stainless steel strip
CN111876581A (en) * 2020-06-04 2020-11-03 山东钢铁股份有限公司 Method and system for controlling strip steel width narrowing of continuous annealing furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009119475A (en) * 2007-11-12 2009-06-04 Nisshin Steel Co Ltd Method of monitoring variation amount of plate width in continuous plating line
CN102936646A (en) * 2012-11-20 2013-02-20 上海实达精密不锈钢有限公司 Tension removing device for precise stainless steel strip
CN111876581A (en) * 2020-06-04 2020-11-03 山东钢铁股份有限公司 Method and system for controlling strip steel width narrowing of continuous annealing furnace

Also Published As

Publication number Publication date
JPS6146527B2 (en) 1986-10-15

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