CA2308641A1 - Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls - Google Patents

Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls Download PDF

Info

Publication number
CA2308641A1
CA2308641A1 CA002308641A CA2308641A CA2308641A1 CA 2308641 A1 CA2308641 A1 CA 2308641A1 CA 002308641 A CA002308641 A CA 002308641A CA 2308641 A CA2308641 A CA 2308641A CA 2308641 A1 CA2308641 A1 CA 2308641A1
Authority
CA
Canada
Prior art keywords
furnace
heat treating
vertical heat
hearth rolls
taper
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
CA002308641A
Other languages
French (fr)
Other versions
CA2308641C (en
Inventor
Sachihiro Iida
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
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to CA002308641A priority Critical patent/CA2308641C/en
Priority to US09/572,449 priority patent/US6238209B1/en
Priority claimed from US09/572,449 external-priority patent/US6238209B1/en
Priority to EP00304408A priority patent/EP1158059B1/en
Priority to CNB001087363A priority patent/CN1318614C/en
Publication of CA2308641A1 publication Critical patent/CA2308641A1/en
Application granted granted Critical
Publication of CA2308641C publication Critical patent/CA2308641C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails

Landscapes

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

Abstract

A vertical heat treating furnace for passing a metal strip, therethrough for heat treatment and a hearth roll applied to a heating/soaking furnace of the vertical heat treating furnace are disclosed. The hearth roll can be configured such that the taper angle of each of first taper sections continuous to a flat section at a central portion of the hearth roll from a roll axial direction is larger than the taper angle of each of second taper sections continuous to each of the first taper sections from the roll axial direction. The length Lc (mm) of the flat section and the length L1 (mm) of the first taper section can satisfy the following relationships: 0.5 Wmin <= Lc <= Wmin and Wmin <= Lc + 2 × Li <= Wmax - 400, where Wmin is the minimum width (mm) of the metal strip, and Wmax is the maximum width (mm) of the metal strip.
CA002308641A 2000-05-17 2000-05-17 Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls Expired - Fee Related CA2308641C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002308641A CA2308641C (en) 2000-05-17 2000-05-17 Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls
US09/572,449 US6238209B1 (en) 2000-05-17 2000-05-17 Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls
EP00304408A EP1158059B1 (en) 2000-05-17 2000-05-24 Use of a hearth roll in a method for heat treating a variety of metal strips in a vertical heat treating furnace including hearth rolls
CNB001087363A CN1318614C (en) 2000-05-17 2000-05-31 Bottom rollers of vertical heat treating furnace and furnace therewith

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002308641A CA2308641C (en) 2000-05-17 2000-05-17 Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls
US09/572,449 US6238209B1 (en) 2000-05-17 2000-05-17 Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls
EP00304408A EP1158059B1 (en) 2000-05-17 2000-05-24 Use of a hearth roll in a method for heat treating a variety of metal strips in a vertical heat treating furnace including hearth rolls
CNB001087363A CN1318614C (en) 2000-05-17 2000-05-31 Bottom rollers of vertical heat treating furnace and furnace therewith

Publications (2)

Publication Number Publication Date
CA2308641A1 true CA2308641A1 (en) 2001-11-17
CA2308641C CA2308641C (en) 2008-07-08

Family

ID=27427613

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002308641A Expired - Fee Related CA2308641C (en) 2000-05-17 2000-05-17 Hearth rolls for heating furnace and soaking furnace of vertical heat treating furnace and vertical heat treating furnace including hearth rolls

Country Status (3)

Country Link
EP (1) EP1158059B1 (en)
CN (1) CN1318614C (en)
CA (1) CA2308641C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008150205A1 (en) * 2007-06-05 2008-12-11 Sandvik Intellectual Property Ab A roller hearth furnace and roller therefore
CN102021309B (en) * 2010-12-16 2012-01-18 山西太钢不锈钢股份有限公司 Installation method of fiber roll of annealing furnace

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070362A (en) * 1961-03-02 1962-12-25 Midland Ross Corp Furnace roller
JPS52136812A (en) * 1976-05-13 1977-11-15 Nippon Kokan Kk <Nkk> Roll for process line
JPH07173524A (en) * 1993-12-17 1995-07-11 Nippon Steel Corp Hearth roll of continuous annealing furnace for steel sheet
JPH0931550A (en) * 1995-07-19 1997-02-04 Kobe Steel Ltd Method for controlling strip width in continuous casting equipment
JPH10298666A (en) * 1997-04-22 1998-11-10 Sumitomo Metal Ind Ltd Method for preventing buckling of steel strip and device therefor
JP3533072B2 (en) * 1997-09-26 2004-05-31 新日本製鐵株式会社 Hearth roll for heat treatment furnace

Also Published As

Publication number Publication date
CA2308641C (en) 2008-07-08
EP1158059B1 (en) 2005-07-27
CN1326007A (en) 2001-12-12
CN1318614C (en) 2007-05-30
EP1158059A1 (en) 2001-11-28

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EEER Examination request
MKLA Lapsed

Effective date: 20190517