DE59403219D1 - Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen - Google Patents

Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen

Info

Publication number
DE59403219D1
DE59403219D1 DE59403219T DE59403219T DE59403219D1 DE 59403219 D1 DE59403219 D1 DE 59403219D1 DE 59403219 T DE59403219 T DE 59403219T DE 59403219 T DE59403219 T DE 59403219T DE 59403219 D1 DE59403219 D1 DE 59403219D1
Authority
DE
Germany
Prior art keywords
carburisation
steels
hydrogen
gas mixt
avoid edge
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
DE59403219T
Other languages
English (en)
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
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
Application granted granted Critical
Publication of DE59403219D1 publication Critical patent/DE59403219D1/de
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
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/06—Extraction of hydrogen
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Arc Welding In General (AREA)
DE59403219T 1994-01-08 1994-09-27 Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen Expired - Lifetime DE59403219D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4400391A DE4400391A1 (de) 1994-01-08 1994-01-08 Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen

Publications (1)

Publication Number Publication Date
DE59403219D1 true DE59403219D1 (de) 1997-07-31

Family

ID=6507609

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4400391A Withdrawn DE4400391A1 (de) 1994-01-08 1994-01-08 Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen
DE59403219T Expired - Lifetime DE59403219D1 (de) 1994-01-08 1994-09-27 Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4400391A Withdrawn DE4400391A1 (de) 1994-01-08 1994-01-08 Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen

Country Status (4)

Country Link
US (1) US5498299A (de)
EP (1) EP0662525B1 (de)
AT (1) ATE154832T1 (de)
DE (2) DE4400391A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5795410A (en) * 1997-01-23 1998-08-18 Usx Corporation Control of surface carbides in steel strip
US6612154B1 (en) 1998-12-22 2003-09-02 Furnace Control Corp. Systems and methods for monitoring or controlling the ratio of hydrogen to water vapor in metal heat treating atmospheres
US6591215B1 (en) * 1999-02-18 2003-07-08 Furnace Control Corp. Systems and methods for controlling the activity of carbon in heat treating atmospheres
FR2826376B1 (fr) * 2001-06-25 2003-09-26 Serthel Procede de cementation et de carbonitruration des aciers par l'oxyde de carbone
DE10254846B4 (de) * 2002-11-25 2011-06-16 Robert Bosch Gmbh Verfahren zum Einsatzhärten von Bauteilen aus Warmarbeitsstählen mittels Unterdruckaufkohlung
AU2003283720A1 (en) * 2002-12-03 2004-06-23 Moltech Invent S.A. A method of conditioning iron alloy-based anodes for aluminium electrowinning cells
DE10321414B4 (de) * 2003-05-13 2008-12-18 Robert Bosch Gmbh Verfahren zur Wärmebehandlung von metallischen Werkstücken in Kammeröfen
US20080149227A1 (en) * 2006-12-26 2008-06-26 Karen Anne Connery Method for oxygen free carburization in atmospheric pressure furnaces
US20080149226A1 (en) * 2006-12-26 2008-06-26 Karen Anne Connery Method of optimizing an oxygen free heat treating process
US20080149225A1 (en) * 2006-12-26 2008-06-26 Karen Anne Connery Method for oxygen free carburization in atmospheric pressure furnaces
US20080187850A1 (en) * 2007-02-06 2008-08-07 Xerox Corporation Tunable electrophotographic imaging member and method of making same
US9109277B2 (en) 2011-01-10 2015-08-18 Air Products And Chemicals, Inc. Method and apparatus for heat treating a metal
EP3168314A1 (de) 2015-11-13 2017-05-17 Air Liquide Deutschland GmbH Verfahren zur wärmebehandlung metallischer werkstücke
AU2017268409B2 (en) 2016-05-20 2021-12-16 Ideapaint, Inc. Dry-erase compositions and methods of making and using thereof

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049473A (en) * 1976-03-11 1977-09-20 Airco, Inc. Methods for carburizing steel parts
US4152177A (en) * 1977-02-03 1979-05-01 General Motors Corporation Method of gas carburizing
CH641840A5 (en) * 1977-06-16 1984-03-15 Standardgraph Filler & Fiebig Process for increasing the abrasion resistance of workpieces of stainless steel or nickel metal alloys
US4175986A (en) * 1978-10-19 1979-11-27 Trw Inc. Inert carrier gas heat treating control process
US4935073A (en) * 1981-11-27 1990-06-19 Sri International Process for applying coatings of zirconium and/or titantuim and a less noble metal to metal substrates and for converting the zirconium and/or titanium to an oxide, nitride, carbide, boride or silicide
SU1204642A1 (ru) * 1982-04-09 1986-01-15 Центральное Производственно-Техническое Предприятие По Ремонту,Наладке И Проектированию Энергетических Установок Предприятий Черной Металлургии Способ производства тонкостенных изделий из высокоуглеродистой стали
US4643402A (en) * 1985-07-24 1987-02-17 Mg Industries System for producing a regulated atmosphere for a high-temperature process
FR2586259B1 (fr) * 1985-08-14 1987-10-30 Air Liquide Procede de cementation rapide dans un four continu
FR2640646B1 (fr) * 1988-12-20 1993-02-05 Air Liquide Procede et installation de traitement thermique de cementation, carbonitruration ou chauffage avant trempe de pieces metalliques
SE466755B (sv) * 1989-06-30 1992-03-30 Aga Ab Foerfarande foer uppkolning av staal med reducering av vaetehalten i uppkolningsskiktet
WO1991000929A1 (de) * 1989-07-07 1991-01-24 Aga Ab Verfahren zum einsatzhärten von wälzlagerelementen aus niedriglegiertem, nickelhaltigem stahl
US5143558A (en) * 1991-03-11 1992-09-01 Thermo Process Systems Inc. Method of heat treating metal parts in an integrated continuous and batch furnace system

Also Published As

Publication number Publication date
EP0662525A1 (de) 1995-07-12
EP0662525B1 (de) 1997-06-25
ATE154832T1 (de) 1997-07-15
DE4400391A1 (de) 1995-07-13
US5498299A (en) 1996-03-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AIR LIQUIDE DEUTSCHLAND GMBH, 47805 KREFELD, DE