FR2288785A2 - 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
FR2288785A2
FR2288785A2 FR7435315A FR7435315A FR2288785A2 FR 2288785 A2 FR2288785 A2 FR 2288785A2 FR 7435315 A FR7435315 A FR 7435315A FR 7435315 A FR7435315 A FR 7435315A FR 2288785 A2 FR2288785 A2 FR 2288785A2
Authority
FR
France
Prior art keywords
carburisation
esp
degrees
controlled
heat treating
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.)
Granted
Application number
FR7435315A
Other languages
English (en)
French (fr)
Other versions
FR2288785B2 (ref
Inventor
Mathurin L Hermite
Raymond Le Bossenec
Pierre Godart
Francois Pierrard
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 FR7435315A priority Critical patent/FR2288785A2/fr
Priority to US05/534,301 priority patent/US4035203A/en
Priority to LU71534A priority patent/LU71534A1/xx
Priority to ES433191A priority patent/ES433191A1/es
Priority to CA216,837A priority patent/CA1038734A/en
Priority to IT30886/74A priority patent/IT1027936B/it
Priority to JP49145843A priority patent/JPS5096410A/ja
Priority to CH1710574A priority patent/CH606449A5/xx
Publication of FR2288785A2 publication Critical patent/FR2288785A2/fr
Application granted granted Critical
Publication of FR2288785B2 publication Critical patent/FR2288785B2/fr
Granted 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
    • 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)
FR7435315A 1973-12-21 1974-10-21 Procede de traitement thermique de l'acier et de controle dudit traitement Granted FR2288785A2 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7435315A FR2288785A2 (fr) 1974-10-21 1974-10-21 Procede de traitement thermique de l'acier et de controle dudit traitement
LU71534A LU71534A1 (ref) 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
CA216,837A CA1038734A (en) 1973-12-21 1974-12-20 Heat-treatment of steels
ES433191A ES433191A1 (es) 1973-12-21 1974-12-20 Procedimiento de tratamiento termico del acero y de control de dicho tratamiento.
IT30886/74A IT1027936B (it) 1973-12-21 1974-12-20 Procedimento per il trattamento termico dell acciato e per la regolazione del detto trattamento
JP49145843A JPS5096410A (ref) 1973-12-21 1974-12-20
CH1710574A CH606449A5 (ref) 1973-12-21 1974-12-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7435315A FR2288785A2 (fr) 1974-10-21 1974-10-21 Procede de traitement thermique de l'acier et de controle dudit traitement

Publications (2)

Publication Number Publication Date
FR2288785A2 true FR2288785A2 (fr) 1976-05-21
FR2288785B2 FR2288785B2 (ref) 1978-10-06

Family

ID=9144311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435315A Granted FR2288785A2 (fr) 1973-12-21 1974-10-21 Procede de traitement thermique de l'acier et de controle dudit traitement

Country Status (1)

Country Link
FR (1) FR2288785A2 (ref)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777911A1 (fr) * 1998-04-28 1999-10-29 Aubert & Duval Sa Procede de carbonitruration a basse pression de pieces en alliage metallique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508735A (fr) * 1966-01-21 1968-01-05 Procédé pour la carbonitruration à basse température des fontes et aciers structurés, ainsi que les produits conformes à ceux obtenus par le présent procédé ou procédé similaire
FR2040026A5 (ref) * 1969-03-26 1971-01-15 Union Carbide Corp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508735A (fr) * 1966-01-21 1968-01-05 Procédé pour la carbonitruration à basse température des fontes et aciers structurés, ainsi que les produits conformes à ceux obtenus par le présent procédé ou procédé similaire
FR2040026A5 (ref) * 1969-03-26 1971-01-15 Union Carbide Corp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777911A1 (fr) * 1998-04-28 1999-10-29 Aubert & Duval Sa Procede de carbonitruration a basse pression de pieces en alliage metallique
WO1999055928A1 (fr) * 1998-04-28 1999-11-04 Aubert & Duval Procede de carbonitruration a basse pression de pieces en alliage metallique

Also Published As

Publication number Publication date
FR2288785B2 (ref) 1978-10-06

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