BE823648A - Procede de traitement thermique de l'acier et de controle dudit traitement - Google Patents

Procede de traitement thermique de l'acier et de controle dudit traitement

Info

Publication number
BE823648A
BE823648A BE151752A BE151752A BE823648A BE 823648 A BE823648 A BE 823648A BE 151752 A BE151752 A BE 151752A BE 151752 A BE151752 A BE 151752A BE 823648 A BE823648 A BE 823648A
Authority
BE
Belgium
Prior art keywords
treatment
steel
control
thermal treatment
thermal
Prior art date
Application number
BE151752A
Other languages
English (en)
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 filed Critical
Publication of BE823648A publication Critical patent/BE823648A/fr

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)
BE151752A 1973-12-21 1974-12-20 Procede de traitement thermique de l'acier et de controle dudit traitement BE823648A (fr)

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 (1)

Publication Number Publication Date
BE823648A true BE823648A (fr) 1975-06-20

Family

ID=9129589

Family Applications (1)

Application Number Title Priority Date Filing Date
BE151752A BE823648A (fr) 1973-12-21 1974-12-20 Procede de traitement thermique de l'acier et de controle dudit traitement

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
FR2271295B1 (fr) 1978-09-08
FR2271295A1 (en) 1975-12-12

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: S.A. L' AIR LIQUIDE POUR L'ETUDE ET L'EXPLOITATION

Effective date: 19911231