FR2124881A5 - Continuous annealing of steel strip -with heat exchange between - outgoing and ingoing strip - Google Patents

Continuous annealing of steel strip -with heat exchange between - outgoing and ingoing strip

Info

Publication number
FR2124881A5
FR2124881A5 FR7202659A FR7202659A FR2124881A5 FR 2124881 A5 FR2124881 A5 FR 2124881A5 FR 7202659 A FR7202659 A FR 7202659A FR 7202659 A FR7202659 A FR 7202659A FR 2124881 A5 FR2124881 A5 FR 2124881A5
Authority
FR
France
Prior art keywords
strip
heat
continuous annealing
ingoing
heat exchange
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.)
Expired
Application number
FR7202659A
Other languages
French (fr)
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.)
British Steel Corp
Original Assignee
British 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 British Steel Corp filed Critical British Steel Corp
Application granted granted Critical
Publication of FR2124881A5 publication Critical patent/FR2124881A5/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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

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 Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The heat remaining in steel strip emerging from a continuous annealing furnace is used to heat up the ingoing strip. The time for heat exchange is lengthened by threading the strips close together in a looping tower, which is divided into compartment by vertical walls alternately from floor and roof. Fans or blowers circulate an inert or reducing gas through the compartments in order to promote transfer of heat by radiation and convection. The heat requirements of the soaking zone of the furnace can be reduced by 50% or more.
FR7202659A 1971-02-02 1972-01-27 Continuous annealing of steel strip -with heat exchange between - outgoing and ingoing strip Expired FR2124881A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB369971 1971-02-02

Publications (1)

Publication Number Publication Date
FR2124881A5 true FR2124881A5 (en) 1972-09-22

Family

ID=9763287

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7202659A Expired FR2124881A5 (en) 1971-02-02 1972-01-27 Continuous annealing of steel strip -with heat exchange between - outgoing and ingoing strip

Country Status (3)

Country Link
DE (1) DE2202115A1 (en)
FR (1) FR2124881A5 (en)
IT (1) IT948917B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286984A1 (en) * 1987-04-16 1988-10-19 ITALIMPIANTI Società Italiana Impianti p.a. Reheating furnace with rotating flame burners for slabs and billets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286984A1 (en) * 1987-04-16 1988-10-19 ITALIMPIANTI Società Italiana Impianti p.a. Reheating furnace with rotating flame burners for slabs and billets

Also Published As

Publication number Publication date
IT948917B (en) 1973-06-11
DE2202115A1 (en) 1972-08-10

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Legal Events

Date Code Title Description
ST Notification of lapse