FR2271295B1 - - Google Patents

Info

Publication number
FR2271295B1
FR2271295B1 FR7345946A FR7345946A FR2271295B1 FR 2271295 B1 FR2271295 B1 FR 2271295B1 FR 7345946 A FR7345946 A FR 7345946A FR 7345946 A FR7345946 A FR 7345946A FR 2271295 B1 FR2271295 B1 FR 2271295B1
Authority
FR
France
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
Application number
FR7345946A
Other versions
FR2271295A1 (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.)
Air Liquide SA
Original Assignee
Air Liquide SA
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 filed Critical Air Liquide SA
Priority to FR7345946A priority Critical patent/FR2271295A1/fr
Priority to US05/534,301 priority patent/US4035203A/en
Priority to LU71534A priority patent/LU71534A1/xx
Priority to CA216,837A priority patent/CA1038734A/fr
Priority to CH1710574A priority patent/CH606449A5/xx
Priority to IT30886/74A priority patent/IT1027936B/it
Priority to ES433191A priority patent/ES433191A1/es
Priority to JP49145843A priority patent/JPS5096410A/ja
Priority to BE151752A priority patent/BE823648A/fr
Publication of FR2271295A1 publication Critical patent/FR2271295A1/fr
Application granted granted Critical
Publication of FR2271295B1 publication Critical patent/FR2271295B1/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
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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

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)
FR7345946A 1973-12-21 1973-12-21 Gas mixtures for heat treating steel - esp. for controlled carburisation Granted FR2271295A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7345946A FR2271295A1 (en) 1973-12-21 1973-12-21 Gas mixtures for heat treating steel - esp. for controlled carburisation
LU71534A LU71534A1 (fr) 1973-12-21 1974-12-19
US05/534,301 US4035203A (en) 1973-12-21 1974-12-19 Method for the heat-treatment of steel and for the control of said treatment
CH1710574A CH606449A5 (fr) 1973-12-21 1974-12-20
CA216,837A CA1038734A (fr) 1973-12-21 1974-12-20 Methode pour le traitement thermique des aciers, et regulation dudit traitement
IT30886/74A IT1027936B (it) 1973-12-21 1974-12-20 Procedimento per il trattamento termico dell acciato e per la regolazione del detto trattamento
ES433191A ES433191A1 (es) 1973-12-21 1974-12-20 Procedimiento de tratamiento termico del acero y de control de dicho tratamiento.
JP49145843A JPS5096410A (fr) 1973-12-21 1974-12-20
BE151752A BE823648A (fr) 1973-12-21 1974-12-20 Procede de traitement thermique de l'acier et de controle dudit traitement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7345946A FR2271295A1 (en) 1973-12-21 1973-12-21 Gas mixtures for heat treating steel - esp. for controlled carburisation

Publications (2)

Publication Number Publication Date
FR2271295A1 FR2271295A1 (en) 1975-12-12
FR2271295B1 true FR2271295B1 (fr) 1978-09-08

Family

ID=9129589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345946A Granted FR2271295A1 (en) 1973-12-21 1973-12-21 Gas mixtures for heat treating steel - esp. for controlled carburisation

Country Status (2)

Country Link
BE (1) BE823648A (fr)
FR (1) FR2271295A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175986A (en) * 1978-10-19 1979-11-27 Trw Inc. Inert carrier gas heat treating control process
FR2595801B1 (fr) * 1986-03-12 1988-06-10 Innovatique Sa Procede et dispositif pour l'elaboration d'un melange gazeux apte a assurer une atmosphere de traitement dans un four de traitement thermochimique par bombardement ionique
FR2777911B1 (fr) * 1998-04-28 2000-07-28 Aubert & Duval Sa Procede de carbonitruration a basse pression de pieces en alliage metallique
DE10221605A1 (de) * 2002-05-15 2003-12-04 Linde Ag Verfahren und Vorrichtung zur Wärmebehandlung metallischer Werkstücke
FR2884523B1 (fr) 2005-04-19 2008-01-11 Const Mecaniques Sa Et Procede et four de carbonitruration a basse pression
CN117230403B (zh) * 2023-11-10 2024-01-09 烟台福尔精密机械有限公司 一种用于共轨喷油器加工的渗碳热处理控制系统

Also Published As

Publication number Publication date
BE823648A (fr) 1975-06-20
FR2271295A1 (en) 1975-12-12

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Legal Events

Date Code Title Description
ST Notification of lapse