JPS5662927A - Continuous heat treatment furnace of strip - Google Patents

Continuous heat treatment furnace of strip

Info

Publication number
JPS5662927A
JPS5662927A JP13930079A JP13930079A JPS5662927A JP S5662927 A JPS5662927 A JP S5662927A JP 13930079 A JP13930079 A JP 13930079A JP 13930079 A JP13930079 A JP 13930079A JP S5662927 A JPS5662927 A JP S5662927A
Authority
JP
Japan
Prior art keywords
strip
trunk
roll
rolls
hearth
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.)
Pending
Application number
JP13930079A
Other languages
Japanese (ja)
Inventor
Masao Morimoto
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP13930079A priority Critical patent/JPS5662927A/en
Publication of JPS5662927A publication Critical patent/JPS5662927A/en
Pending 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
    • C21D9/562—Details
    • C21D9/563—Rolls; Drums; Roll arrangements

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 Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To stabilize the operation through preventing the strip from running off hearth rolls in varying widths of strip for annealing by constituting a number of hearth rolls in a furnace with different forms of trunk contour in an annealing process of strip in a continuous annealing furnace. CONSTITUTION:In a continuous annealing furnace having a number of hearth rolls, a hearth roll for narrow-width strip 11 and a hearth roll for wide-width strip 12 are arranged alternately in each roll or in every 2-3 rolls. In these hearth rolls, the rolls having bulging form on its trunk part 8 are used, wherein the difference (L-W) between a trunk length of the roll L and width of strip W is 200-250mm. and the maximum diameter D of the trunk 600-2,000mm.. In a roll having a flat part 9 in its trunk 8, the length of this parallel part 1 is 0.3-0.8 times of the trunk length L and the difference (D-d) between the horizontal part diameter D and minimum diameter d 0.5-6mm.. In a roll having a crown on its trunk 8, the difference between the maximum radius and minimum radius of curving part, delta, (D-d)/2, is 0.1-3mm..
JP13930079A 1979-10-30 1979-10-30 Continuous heat treatment furnace of strip Pending JPS5662927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13930079A JPS5662927A (en) 1979-10-30 1979-10-30 Continuous heat treatment furnace of strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13930079A JPS5662927A (en) 1979-10-30 1979-10-30 Continuous heat treatment furnace of strip

Publications (1)

Publication Number Publication Date
JPS5662927A true JPS5662927A (en) 1981-05-29

Family

ID=15242065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13930079A Pending JPS5662927A (en) 1979-10-30 1979-10-30 Continuous heat treatment furnace of strip

Country Status (1)

Country Link
JP (1) JPS5662927A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754772A2 (en) * 1995-06-23 1997-01-22 Nkk Corporation Method for controlling a tension of a metal strip in a heat treatment furnace
CN108676995A (en) * 2018-04-28 2018-10-19 首钢京唐钢铁联合有限责任公司 Method and device for preventing deviation of strip steel in vertical annealing furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754772A2 (en) * 1995-06-23 1997-01-22 Nkk Corporation Method for controlling a tension of a metal strip in a heat treatment furnace
US5739438A (en) * 1995-06-23 1998-04-14 Nkk Corporation Method for controlling a tension of a metal strip in a heat treatment furnace
EP0754772A3 (en) * 1995-06-23 1998-07-08 Nkk Corporation Method for controlling a tension of a metal strip in a heat treatment furnace
CN108676995A (en) * 2018-04-28 2018-10-19 首钢京唐钢铁联合有限责任公司 Method and device for preventing deviation of strip steel in vertical annealing furnace

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