DE50308274D1 - Process for glue-free annealing of metal parts - Google Patents

Process for glue-free annealing of metal parts

Info

Publication number
DE50308274D1
DE50308274D1 DE50308274T DE50308274T DE50308274D1 DE 50308274 D1 DE50308274 D1 DE 50308274D1 DE 50308274 T DE50308274 T DE 50308274T DE 50308274 T DE50308274 T DE 50308274T DE 50308274 D1 DE50308274 D1 DE 50308274D1
Authority
DE
Germany
Prior art keywords
metal parts
glue
free annealing
annealing
free
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 - Lifetime
Application number
DE50308274T
Other languages
German (de)
Inventor
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.)
Air Liquide Deutschland GmbH
Original Assignee
Air Liquide Deutschland 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 Air Liquide Deutschland GmbH filed Critical Air Liquide Deutschland GmbH
Application granted granted Critical
Publication of DE50308274D1 publication Critical patent/DE50308274D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr

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 Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

Annealing metal parts, especially steel parts containing chromium and manganese, comprises acquiring the dew point of the hydrogen-steam atmosphere during heat-maintaining and cooling, and automatically regulating by adjusting with empirically determined theoretical values.
DE50308274T 2002-11-28 2003-11-25 Process for glue-free annealing of metal parts Expired - Lifetime DE50308274D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10255590A DE10255590A1 (en) 2002-11-28 2002-11-28 Process for glue-free annealing of metal parts

Publications (1)

Publication Number Publication Date
DE50308274D1 true DE50308274D1 (en) 2007-11-08

Family

ID=32240499

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10255590A Ceased DE10255590A1 (en) 2002-11-28 2002-11-28 Process for glue-free annealing of metal parts
DE50308274T Expired - Lifetime DE50308274D1 (en) 2002-11-28 2003-11-25 Process for glue-free annealing of metal parts

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10255590A Ceased DE10255590A1 (en) 2002-11-28 2002-11-28 Process for glue-free annealing of metal parts

Country Status (3)

Country Link
EP (1) EP1424402B1 (en)
AT (1) ATE374262T1 (en)
DE (2) DE10255590A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500686B1 (en) * 2004-06-28 2007-03-15 Ebner Ind Ofenbau METHOD FOR THE HEAT TREATMENT OF A METAL STRIP BEFORE A METALLIC COATING
RU2456370C2 (en) * 2010-07-26 2012-07-20 Государственное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет" (СГТУ) Method for steam-thermal oxydation of steel items and furnace for its implementation
DE102018217284A1 (en) * 2018-10-10 2020-04-16 Siemens Aktiengesellschaft Improvement of the low temperature oxidation resistance of chrome steel, component and process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207394C1 (en) 1992-03-09 1993-02-11 Messer Griesheim Gmbh, 6000 Frankfurt, De
JP3014537B2 (en) * 1992-05-01 2000-02-28 新日本製鐵株式会社 Manufacturing method for high strength galvannealed steel sheet
JPH0853712A (en) * 1994-08-09 1996-02-27 Nippon Steel Corp Control of distribution of dew point in continuous decarburize-annealing furnace
DE19531447A1 (en) * 1995-08-26 1997-02-27 Messer Griesheim Gmbh Method of avoiding glue when annealing cold rolled strip
US5772428A (en) * 1996-02-09 1998-06-30 Praxair Technology, Inc. Method and apparatus for heat treatment including H2 /H2 O furnace region control
JPH11158559A (en) * 1997-11-27 1999-06-15 Sumitomo Metal Ind Ltd Method for controlling atmosphere in continuous annealing furnace
GB9800528D0 (en) * 1998-01-12 1998-03-11 Boc Group Plc Furnace atmosphere dew point control

Also Published As

Publication number Publication date
EP1424402A1 (en) 2004-06-02
EP1424402B1 (en) 2007-09-26
DE10255590A1 (en) 2004-06-17
ATE374262T1 (en) 2007-10-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition