ZA782403B - Improvements relating to the production of furnace atmospheres for the heat treatments of ferrous metals - Google Patents

Improvements relating to the production of furnace atmospheres for the heat treatments of ferrous metals

Info

Publication number
ZA782403B
ZA782403B ZA00782403A ZA782403A ZA782403B ZA 782403 B ZA782403 B ZA 782403B ZA 00782403 A ZA00782403 A ZA 00782403A ZA 782403 A ZA782403 A ZA 782403A ZA 782403 B ZA782403 B ZA 782403B
Authority
ZA
South Africa
Prior art keywords
production
heat treatments
ferrous metals
improvements relating
furnace atmospheres
Prior art date
Application number
ZA00782403A
Other languages
English (en)
Inventor
D Knight
Original Assignee
Air Prod & Chem
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 Prod & Chem filed Critical Air Prod & Chem
Publication of ZA782403B publication Critical patent/ZA782403B/xx

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
    • C23C8/08—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
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Furnace Details (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
ZA00782403A 1977-04-27 1978-04-27 Improvements relating to the production of furnace atmospheres for the heat treatments of ferrous metals ZA782403B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17609/77A GB1575342A (en) 1977-04-27 1977-04-27 Production of furnace atmospheres for the heat treatment of ferrous metals

Publications (1)

Publication Number Publication Date
ZA782403B true ZA782403B (en) 1979-06-27

Family

ID=10098140

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00782403A ZA782403B (en) 1977-04-27 1978-04-27 Improvements relating to the production of furnace atmospheres for the heat treatments of ferrous metals

Country Status (4)

Country Link
DE (1) DE2818558A1 (ref)
FR (1) FR2388896A2 (ref)
GB (1) GB1575342A (ref)
ZA (1) ZA782403B (ref)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322255A (en) 1979-01-15 1982-03-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Heat treatment of steel and method for monitoring the treatment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3038078A1 (de) * 1980-10-08 1982-05-06 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtung zum aufkohlen metallischer werkstuecke
FR2524006B1 (fr) * 1982-03-23 1985-10-11 Air Liquide Procede de durcissement superficiel de pieces metalliques
DE3230723A1 (de) * 1982-08-18 1984-02-23 Linde Ag, 6200 Wiesbaden Verfahren zum herstellen einer gasatmosphaere fuer das gluehen metallischer werkstuecke

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1150079A (fr) * 1956-04-26 1958-01-07 Renault Procédé de préparation d'atmosphère pour traitement thermique des métaux
CH448673A (fr) * 1965-12-09 1967-12-15 Four Electr Delemont Sa Du Procédé de cémentation gazeuse d'acier
GB1471880A (en) * 1973-10-26 1977-04-27 Air Prod & Chem Furnace atmosphere for the heat treatment of ferrous metal
JPS5178714A (en) * 1974-12-28 1976-07-08 Kobe Steel Ltd Kofunmatsutaino kanetsuhoho
US4049473A (en) * 1976-03-11 1977-09-20 Airco, Inc. Methods for carburizing steel parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322255A (en) 1979-01-15 1982-03-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Heat treatment of steel and method for monitoring the treatment

Also Published As

Publication number Publication date
DE2818558A1 (de) 1978-11-09
FR2388896A2 (fr) 1978-11-24
FR2388896B2 (ref) 1981-01-09
GB1575342A (en) 1980-09-17

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