AU2002358765A1 - Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips - Google Patents

Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips

Info

Publication number
AU2002358765A1
AU2002358765A1 AU2002358765A AU2002358765A AU2002358765A1 AU 2002358765 A1 AU2002358765 A1 AU 2002358765A1 AU 2002358765 A AU2002358765 A AU 2002358765A AU 2002358765 A AU2002358765 A AU 2002358765A AU 2002358765 A1 AU2002358765 A1 AU 2002358765A1
Authority
AU
Australia
Prior art keywords
cold rolled
rolled strips
atmosphere
recrystallization annealing
avoiding
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.)
Abandoned
Application number
AU2002358765A
Inventor
Philipe Grognet
Hans-Peter Schmidt
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of AU2002358765A1 publication Critical patent/AU2002358765A1/en
Abandoned 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
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D9/663—Bell-type furnaces
    • C21D9/667—Multi-station furnaces
    • C21D9/67—Multi-station furnaces adapted for treating the charge in vacuum or special atmosphere
    • 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
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

According to a known method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips in bell-type furnaces, which comprises the phases of heating, maintaining and cooling, the cold rolled strip is subjected during the maintaining phase to an atmosphere with an oxidizing partial pressure P(CO2)/P(CO) >1, adjusted by admixing an oxidant to the protective furnace gas. In order to improve the known method with respect to its reproducibility of avoiding adhesions during the annealing of cold rolled strips under a protective atmosphere with gases having a high hydrogen content (>5%), without the formation of thick, oxidic cover layers required. The oxidant is added together with unburnt gas that contains carbon dioxide in a concentration of maximally 40 % by volume and hydrogen. The partial pressure ratio of the water and hydrogen formed in the furnace atmosphere is determined and controlled.
AU2002358765A 2001-12-19 2002-12-19 Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips Abandoned AU2002358765A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10162702A DE10162702C1 (en) 2001-12-19 2001-12-19 Process for avoiding adhering and scratching during recrystallization annealing of cold strips in a hood type furnace in a protective gas containing hydrogen comprises subjecting the cold strip to an atmosphere adjusted using an oxidant
DE10162702.5 2001-12-19
PCT/EP2002/014553 WO2003052148A1 (en) 2001-12-19 2002-12-19 Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips

Publications (1)

Publication Number Publication Date
AU2002358765A1 true AU2002358765A1 (en) 2003-06-30

Family

ID=7709999

Family Applications (2)

Application Number Title Priority Date Filing Date
AU2002366345A Withdrawn AU2002366345A1 (en) 2001-12-19 2002-11-14 Method for preventing adhesive substances and scratches from occurring during recrystallization annealing of cold strips
AU2002358765A Abandoned AU2002358765A1 (en) 2001-12-19 2002-12-19 Method for avoiding adhesions and scratches during recrystallization annealing of cold rolled strips

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AU2002366345A Withdrawn AU2002366345A1 (en) 2001-12-19 2002-11-14 Method for preventing adhesive substances and scratches from occurring during recrystallization annealing of cold strips

Country Status (5)

Country Link
EP (1) EP1456422B1 (en)
AT (1) ATE478159T1 (en)
AU (2) AU2002366345A1 (en)
DE (2) DE10162702C1 (en)
WO (2) WO2003052147A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3575008B1 (en) * 2018-05-30 2022-08-24 Muhr und Bender KG Method for avoiding band sticking to flexible rolled strip material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873377A (en) * 1973-11-21 1975-03-25 Bethlehem Steel Corp Process for improving batch annealed strip surface quality
DE4207394C1 (en) * 1992-03-09 1993-02-11 Messer Griesheim Gmbh, 6000 Frankfurt, De
US5233379A (en) 1992-03-10 1993-08-03 Eastman Kodak Company Dust purging method and apparatus for deploying lens cameras
DE19531447A1 (en) * 1995-08-26 1997-02-27 Messer Griesheim Gmbh Method of avoiding glue when annealing cold rolled strip
DE19738653A1 (en) * 1997-09-04 1999-03-11 Messer Griesheim Gmbh Method and device for heat treating parts
DE19840778A1 (en) * 1998-09-07 2000-03-09 Messer Griesheim Gmbh Method and device for cleaning metal surfaces

Also Published As

Publication number Publication date
EP1456422B1 (en) 2010-08-18
EP1456422A1 (en) 2004-09-15
WO2003052148A1 (en) 2003-06-26
DE50214598D1 (en) 2010-09-30
WO2003052147A1 (en) 2003-06-26
ATE478159T1 (en) 2010-09-15
DE10162702C1 (en) 2003-04-17
AU2002366345A1 (en) 2003-06-30

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase