FR2282472A1 - Heat treatment furnace sepg. devices - to remove debris from steel strip surface and keep atmospheres in successive furnaces unmixed - Google Patents

Heat treatment furnace sepg. devices - to remove debris from steel strip surface and keep atmospheres in successive furnaces unmixed

Info

Publication number
FR2282472A1
FR2282472A1 FR7525786A FR7525786A FR2282472A1 FR 2282472 A1 FR2282472 A1 FR 2282472A1 FR 7525786 A FR7525786 A FR 7525786A FR 7525786 A FR7525786 A FR 7525786A FR 2282472 A1 FR2282472 A1 FR 2282472A1
Authority
FR
France
Prior art keywords
furnace
furnaces
strip
sepg
unmixed
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
FR7525786A
Other languages
French (fr)
Other versions
FR2282472B1 (en
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
Priority claimed from JP9520874A external-priority patent/JPS5122607A/en
Priority claimed from JP9521074A external-priority patent/JPS5122609A/en
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of FR2282472A1 publication Critical patent/FR2282472A1/en
Application granted granted Critical
Publication of FR2282472B1 publication Critical patent/FR2282472B1/fr
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
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • 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
    • C21D9/565—Sealing arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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

Installation for treatment of a strip of steel in a continuous treatment line having a high treatment rate (e.g. 50 tonnes/hr) comprising a horizontal direct heating furnace and a following vertical furnace comprosing (a) a radiation heating and redn. zone, (b) a slow cooling zone, (c) a rapid cooling zone and (d) a controlled cooling zone, is characterised in that the two furnaces are connected by a constricted region in which are provided devices for removing or expelling foreign matter carried on the strip, and for inhibiting mixt. of the gases in the two furnaces. In a refractory brkck or bits of linign material were to fall from the wall of the first furnace onto the strip, it would be collected before reaching the second furnace, while the atmosphere of the second chamber remains unpolluted by gas from the first.
FR7525786A 1974-08-20 1975-08-20 Heat treatment furnace sepg. devices - to remove debris from steel strip surface and keep atmospheres in successive furnaces unmixed Granted FR2282472A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9520874A JPS5122607A (en) 1974-08-20 1974-08-20 KOTAIRENZOKU SHORIRAINNO SHODONSOCHI
JP9521074A JPS5122609A (en) 1974-08-20 1974-08-20 KOBANRENZOKUNETSUSHORIRONO ROKANSHIKIRISOCHI

Publications (2)

Publication Number Publication Date
FR2282472A1 true FR2282472A1 (en) 1976-03-19
FR2282472B1 FR2282472B1 (en) 1979-05-18

Family

ID=26436480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7525786A Granted FR2282472A1 (en) 1974-08-20 1975-08-20 Heat treatment furnace sepg. devices - to remove debris from steel strip surface and keep atmospheres in successive furnaces unmixed

Country Status (4)

Country Link
BR (1) BR7505330A (en)
ES (1) ES440667A1 (en)
FR (1) FR2282472A1 (en)
IT (1) IT1044419B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066523A1 (en) * 1981-06-03 1982-12-08 Stein Heurtey Apparatus for the surface treatment of galvanized sheet iron in a confined atmosphere
EP0161861A2 (en) * 1984-05-04 1985-11-21 Kawasaki Steel Corporation Continuous annealing method and apparatus for cold rolled steel strips
EP0795616A1 (en) * 1996-03-13 1997-09-17 STEIN HEURTEY, Société Anonyme: Process for continuously heat treating metal strip in different atmospheres
EP0995807A1 (en) * 1998-10-23 2000-04-26 Kawasaki Steel Corporation Sealing apparatus in continuous heat-treatment furnace and sealing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066523A1 (en) * 1981-06-03 1982-12-08 Stein Heurtey Apparatus for the surface treatment of galvanized sheet iron in a confined atmosphere
EP0161861A2 (en) * 1984-05-04 1985-11-21 Kawasaki Steel Corporation Continuous annealing method and apparatus for cold rolled steel strips
EP0161861A3 (en) * 1984-05-04 1986-02-19 Kawasaki Steel Corporation Continuous annealing method and apparatus for cold rolled steel strips
EP0795616A1 (en) * 1996-03-13 1997-09-17 STEIN HEURTEY, Société Anonyme: Process for continuously heat treating metal strip in different atmospheres
FR2746112A1 (en) * 1996-03-13 1997-09-19 Stein Heurtey METHOD OF CONTINUOUS HEAT TREATMENT OF METAL STRIPS IN ATMOSPHERES OF DIFFERENT NATURE
US5798007A (en) * 1996-03-13 1998-08-25 Stein Heurtey Process and apparatus for the continuous heat treatment of a metal strip travelling in a different atmosphere
EP0995807A1 (en) * 1998-10-23 2000-04-26 Kawasaki Steel Corporation Sealing apparatus in continuous heat-treatment furnace and sealing method
US6341955B1 (en) 1998-10-23 2002-01-29 Kawasaki Steel Corporation Sealing apparatus in continuous heat-treatment furnace and sealing method

Also Published As

Publication number Publication date
FR2282472B1 (en) 1979-05-18
AU8414675A (en) 1977-02-24
IT1044419B (en) 1980-03-20
BR7505330A (en) 1976-08-03
ES440667A1 (en) 1977-03-01

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Legal Events

Date Code Title Description
ST Notification of lapse