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WO2007121074A3 - Annealing of hot rolled steel coils with clam shell furnace - Google Patents

Annealing of hot rolled steel coils with clam shell furnace Download PDF

Info

Publication number
WO2007121074A3
WO2007121074A3 PCT/US2007/065739 US2007065739W WO2007121074A3 WO 2007121074 A3 WO2007121074 A3 WO 2007121074A3 US 2007065739 W US2007065739 W US 2007065739W WO 2007121074 A3 WO2007121074 A3 WO 2007121074A3
Authority
WO
WIPO (PCT)
Prior art keywords
hot rolled
rolled steel
steel coils
annealing
furnace
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.)
Ceased
Application number
PCT/US2007/065739
Other languages
French (fr)
Other versions
WO2007121074A2 (en
Inventor
David L Chase
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.)
Nucor Corp
Original Assignee
Nucor 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
Priority claimed from US11/549,286 external-priority patent/US7204894B1/en
Application filed by Nucor Corp filed Critical Nucor Corp
Publication of WO2007121074A2 publication Critical patent/WO2007121074A2/en
Publication of WO2007121074A3 publication Critical patent/WO2007121074A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • 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)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

Disclosed is a high temperature annealing furnace (10) for hot rolled steel coils. The furnace (10) of the present invention pivotably rotates about a pivot member (13) between an opened and a closed position. Prior to the annealing step, the hot rolled coils are supported on a retaining element secured to a base portion (1 1) located within the housing (12) of the furnace (10). The hot rolled steel coils may be positioned on the base portion (11) such that the axial opening of each coil is generally horizontal with the base portion (11).
PCT/US2007/065739 2006-04-10 2007-03-31 Annealing of hot rolled steel coils with clam shell furnace Ceased WO2007121074A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US27919206A 2006-04-10 2006-04-10
US11/279,192 2006-04-10
US11/549,286 2006-10-13
US11/549,286 US7204894B1 (en) 2004-03-18 2006-10-13 Annealing of hot rolled steel coils with clam shell furnace

Publications (2)

Publication Number Publication Date
WO2007121074A2 WO2007121074A2 (en) 2007-10-25
WO2007121074A3 true WO2007121074A3 (en) 2008-01-24

Family

ID=38610296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/065739 Ceased WO2007121074A2 (en) 2006-04-10 2007-03-31 Annealing of hot rolled steel coils with clam shell furnace

Country Status (1)

Country Link
WO (1) WO2007121074A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016012860A1 (en) * 2014-07-24 2016-01-28 Sabic Global Technologies.B.V. Annealed cold rolled steel and method for preparing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6177044B1 (en) * 1997-01-30 2001-01-23 Loi Thermprocess Gmbh Bell-shaped furnace
US6346214B1 (en) * 1998-10-14 2002-02-12 Otto Junker Gmbh Top hat furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6177044B1 (en) * 1997-01-30 2001-01-23 Loi Thermprocess Gmbh Bell-shaped furnace
US6346214B1 (en) * 1998-10-14 2002-02-12 Otto Junker Gmbh Top hat furnace

Also Published As

Publication number Publication date
WO2007121074A2 (en) 2007-10-25

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