EP0013654A1 - Procédé de traitement thermique de l'acier et de contrôle dudit traitement; acier ainsi obtenu - Google Patents

Procédé de traitement thermique de l'acier et de contrôle dudit traitement; acier ainsi obtenu Download PDF

Info

Publication number
EP0013654A1
EP0013654A1 EP80400048A EP80400048A EP0013654A1 EP 0013654 A1 EP0013654 A1 EP 0013654A1 EP 80400048 A EP80400048 A EP 80400048A EP 80400048 A EP80400048 A EP 80400048A EP 0013654 A1 EP0013654 A1 EP 0013654A1
Authority
EP
European Patent Office
Prior art keywords
hydrocarbon
carbon monoxide
steel
atmosphere
carbon
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.)
Ceased
Application number
EP80400048A
Other languages
German (de)
English (en)
French (fr)
Inventor
Michel Kostelitz
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 SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP0013654A1 publication Critical patent/EP0013654A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/28—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 more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding 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
    • 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

Definitions

  • the treatment being controlled by measuring the residual content of hydrocarbon, CO 2 and H 2 O in the atmosphere leaving the oven and by adjusting the flow rate of hydrocarbon introduced into the atmosphere entering the oven for l 'obtaining the desired fuel activity, that is to say by controlling the addition of hydrocarbon at the inlet of the furnace.
  • charts were previously established which gave a relationship between on the one hand the residual hydrocarbon content, the residual H 2 0 content, the residual CO 2 content at the outlet of the oven and on the other hand the amount of carbon introduced into the steel. Reading these charts allows the adjustment of the carbon potential as indicated above.
  • the carburetted depth on the side of the part is increased as well as that at the bottom of the groove.
  • the homogeneity of treatment is better with a much more satisfactory relative difference.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
EP80400048A 1979-01-15 1980-01-14 Procédé de traitement thermique de l'acier et de contrôle dudit traitement; acier ainsi obtenu Ceased EP0013654A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7900872A FR2446322A2 (fr) 1979-01-15 1979-01-15 Procede de traitement thermique de l'acier et de controle dudit traitement
FR7900872 1979-01-15

Publications (1)

Publication Number Publication Date
EP0013654A1 true EP0013654A1 (fr) 1980-07-23

Family

ID=9220744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400048A Ceased EP0013654A1 (fr) 1979-01-15 1980-01-14 Procédé de traitement thermique de l'acier et de contrôle dudit traitement; acier ainsi obtenu

Country Status (13)

Country Link
US (1) US4322255A (US20020095090A1-20020718-M00002.png)
EP (1) EP0013654A1 (US20020095090A1-20020718-M00002.png)
JP (2) JPS5597465A (US20020095090A1-20020718-M00002.png)
AR (1) AR221133A1 (US20020095090A1-20020718-M00002.png)
AU (1) AU524217B2 (US20020095090A1-20020718-M00002.png)
BE (1) BE881119R (US20020095090A1-20020718-M00002.png)
BR (1) BR8000212A (US20020095090A1-20020718-M00002.png)
CA (1) CA1146844A (US20020095090A1-20020718-M00002.png)
ES (1) ES8105036A2 (US20020095090A1-20020718-M00002.png)
FR (1) FR2446322A2 (US20020095090A1-20020718-M00002.png)
IT (1) IT1130857B (US20020095090A1-20020718-M00002.png)
LU (1) LU82080A1 (US20020095090A1-20020718-M00002.png)
ZA (1) ZA797062B (US20020095090A1-20020718-M00002.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027649A1 (en) * 1979-10-23 1981-04-29 Air Products And Chemicals, Inc. Protective atmosphere process for annealing and or spheroidizing ferrous metals
EP0040094A1 (en) * 1980-05-12 1981-11-18 Air Products And Chemicals, Inc. Carburizing process utilizing atmospheres generated from nitrogen-ethanol based mixtures
FR2639252A1 (US20020095090A1-20020718-M00002.png) * 1988-11-24 1990-05-25 Air Liquide
FR2777910A1 (fr) * 1998-04-27 1999-10-29 Air Liquide Procede de regulation du potentiel carbone d'une atmosphere de traitement thermique et procede de traitement thermique mettant en oeuvre une telle regulation

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436696A (en) 1981-05-20 1984-03-13 Air Products And Chemicals, Inc. Process for providing a uniform carbon distribution in ferrous compacts at high temperatures
US4415379A (en) * 1981-09-15 1983-11-15 The Boc Group, Inc. Heat treatment processes
FR2524006B1 (fr) * 1982-03-23 1985-10-11 Air Liquide Procede de durcissement superficiel de pieces metalliques
FR2527641A1 (fr) * 1982-05-28 1983-12-02 Air Liquide Procede de traitement thermique de pieces metalliques par carburation
US4597807A (en) * 1984-11-13 1986-07-01 Air Products And Chemicals, Inc. Accelerated carburizing method with discrete atmospheres
US5168200A (en) * 1989-12-18 1992-12-01 Payne Kenneth R Automatic powered flowmeter valves and control thereof
WO1995029270A1 (en) * 1994-04-25 1995-11-02 Sturm, Ruger & Company, Inc. Method of treating titanium parts
US6074493A (en) * 1994-06-15 2000-06-13 Kawasaki Steel Corporation Method of continuously carburizing metal strip
WO1997014820A1 (en) * 1995-10-18 1997-04-24 Sturm, Ruger & Company, Inc. Method of treating titanium parts
JP3960697B2 (ja) * 1998-12-10 2007-08-15 株式会社日本テクノ 浸炭および浸炭窒化処理方法
DE10003526A1 (de) * 2000-01-27 2001-08-09 Messer Griesheim Gmbh Frankfur Verfahren zum Karbonitrieren von kohlenstoffreichen und hochlegierten Stählen
FR2821362B1 (fr) * 2001-02-23 2003-06-13 Etudes Const Mecaniques Procede de cementation basse pression
DE10221605A1 (de) * 2002-05-15 2003-12-04 Linde Ag Verfahren und Vorrichtung zur Wärmebehandlung metallischer Werkstücke
EP3168314A1 (en) * 2015-11-13 2017-05-17 Air Liquide Deutschland GmbH Method for heat treating metallic work pieces

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1116055A (fr) * 1954-12-18 1956-05-03 Renault Procédé de préparation de gaz pour la cémentation de l'acier ou la protection des aciers contre l'oxydation ou la décarburation
FR1150079A (fr) * 1956-04-26 1958-01-07 Renault Procédé de préparation d'atmosphère pour traitement thermique des métaux
FR67920E (fr) * 1955-06-10 1958-03-26 Renault Procédé de préparation de gaz pour la cémentation de l'acier ou la protection des aciers contre l'oxydation ou la décarburation
FR1578942A (US20020095090A1-20020718-M00002.png) * 1968-05-09 1969-08-22
FR2258456A1 (US20020095090A1-20020718-M00002.png) * 1974-01-18 1975-08-18 Messer Griesheim Gmbh
FR2388896A2 (fr) * 1977-04-27 1978-11-24 Air Prod & Chem Procede de traitement thermique de metaux ferreux

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011873A (en) * 1959-01-30 1961-12-05 Leeds & Northrup Co Measurement and control of constituent potentials
NL121448C (US20020095090A1-20020718-M00002.png) * 1961-07-17 1900-01-01
US3693409A (en) * 1970-10-12 1972-09-26 Tokyo Gas Co Ltd Method and apparatus for measuring the carbon potential in gas atmospheres
JPS5120171B2 (US20020095090A1-20020718-M00002.png) * 1971-11-24 1976-06-23
US4035203A (en) * 1973-12-21 1977-07-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for the heat-treatment of steel and for the control of said treatment
FR2285461A1 (fr) * 1974-09-20 1976-04-16 Air Liquide Procede de traitement thermique de l'acier en atmosphere reductrice et non decarburante
US3946817A (en) * 1974-12-23 1976-03-30 Hughes Tool Company Differentially carburized rock bit cutter
US4188242A (en) * 1975-10-16 1980-02-12 Hughes Tool Company Combination carburizing and boronizing methods
US4049472A (en) * 1975-12-22 1977-09-20 Air Products And Chemicals, Inc. Atmosphere compositions and methods of using same for surface treating ferrous metals
JPS5277836A (en) * 1975-12-23 1977-06-30 Fujikoshi Kk Surface treatment of martensitic stainless steel
US4145232A (en) * 1977-06-03 1979-03-20 Union Carbide Corporation Process for carburizing steel
US4175986A (en) * 1978-10-19 1979-11-27 Trw Inc. Inert carrier gas heat treating control process
US4208224A (en) * 1978-11-22 1980-06-17 Airco, Inc. Heat treatment processes utilizing H2 O additions

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1116055A (fr) * 1954-12-18 1956-05-03 Renault Procédé de préparation de gaz pour la cémentation de l'acier ou la protection des aciers contre l'oxydation ou la décarburation
FR67920E (fr) * 1955-06-10 1958-03-26 Renault Procédé de préparation de gaz pour la cémentation de l'acier ou la protection des aciers contre l'oxydation ou la décarburation
FR1150079A (fr) * 1956-04-26 1958-01-07 Renault Procédé de préparation d'atmosphère pour traitement thermique des métaux
FR1578942A (US20020095090A1-20020718-M00002.png) * 1968-05-09 1969-08-22
FR2258456A1 (US20020095090A1-20020718-M00002.png) * 1974-01-18 1975-08-18 Messer Griesheim Gmbh
FR2388896A2 (fr) * 1977-04-27 1978-11-24 Air Prod & Chem Procede de traitement thermique de metaux ferreux

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027649A1 (en) * 1979-10-23 1981-04-29 Air Products And Chemicals, Inc. Protective atmosphere process for annealing and or spheroidizing ferrous metals
EP0040094A1 (en) * 1980-05-12 1981-11-18 Air Products And Chemicals, Inc. Carburizing process utilizing atmospheres generated from nitrogen-ethanol based mixtures
FR2639252A1 (US20020095090A1-20020718-M00002.png) * 1988-11-24 1990-05-25 Air Liquide
EP0370872A1 (fr) * 1988-11-24 1990-05-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé d'élaboration d'une atmosphère de traitement thermique par séparation d'air par adsorption
FR2777910A1 (fr) * 1998-04-27 1999-10-29 Air Liquide Procede de regulation du potentiel carbone d'une atmosphere de traitement thermique et procede de traitement thermique mettant en oeuvre une telle regulation
WO1999055921A1 (fr) * 1998-04-27 1999-11-04 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede de cementation ou carbonitruration de pieces metalliques

Also Published As

Publication number Publication date
AR221133A1 (es) 1980-12-30
BR8000212A (pt) 1980-09-30
JPH0356304B2 (US20020095090A1-20020718-M00002.png) 1991-08-27
JPS5597465A (en) 1980-07-24
IT1130857B (it) 1986-06-18
AU524217B2 (en) 1982-09-02
AU5444980A (en) 1980-07-24
ZA797062B (en) 1980-11-26
ES487618A0 (es) 1981-04-01
FR2446322A2 (fr) 1980-08-08
ES8105036A2 (es) 1981-04-01
CA1146844A (fr) 1983-05-24
LU82080A1 (fr) 1980-04-23
IT8019164A0 (it) 1980-01-11
US4322255A (en) 1982-03-30
BE881119R (fr) 1980-07-11
FR2446322B2 (US20020095090A1-20020718-M00002.png) 1981-05-29
JPS63241158A (ja) 1988-10-06

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19830613

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Inventor name: KOSTELITZ, MICHEL