FR2388896A2 - Procede de traitement thermique de metaux ferreux - Google Patents
Procede de traitement thermique de metaux ferreuxInfo
- Publication number
- FR2388896A2 FR2388896A2 FR7812463A FR7812463A FR2388896A2 FR 2388896 A2 FR2388896 A2 FR 2388896A2 FR 7812463 A FR7812463 A FR 7812463A FR 7812463 A FR7812463 A FR 7812463A FR 2388896 A2 FR2388896 A2 FR 2388896A2
- Authority
- FR
- France
- Prior art keywords
- treatment process
- thermal treatment
- ferrous metals
- relates
- improved
- 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
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)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Furnace Details (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
La présente invention a pour objet un procédé perfectionné de traitement thermique. Elle consiste à introduire dans une chambre de four un milieu oxygéné, un hydrocarbure et l'oxyde de carbone. Elle se rapporte à un tel procédé perfectionné.
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 (2)
Publication Number | Publication Date |
---|---|
FR2388896A2 true FR2388896A2 (fr) | 1978-11-24 |
FR2388896B2 FR2388896B2 (fr) | 1981-01-09 |
Family
ID=10098140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7812463A Granted FR2388896A2 (fr) | 1977-04-27 | 1978-04-27 | Procede de traitement thermique de metaux ferreux |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2818558A1 (fr) |
FR (1) | FR2388896A2 (fr) |
GB (1) | GB1575342A (fr) |
ZA (1) | ZA782403B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0013654A1 (fr) * | 1979-01-15 | 1980-07-23 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé de traitement thermique de l'acier et de contrôle dudit traitement; acier ainsi obtenu |
EP0089885A2 (fr) * | 1982-03-23 | 1983-09-28 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé de durcissement superficiel de pièces métalliques |
Families Citing this family (2)
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 |
DE3230723A1 (de) * | 1982-08-18 | 1984-02-23 | Linde Ag, 6200 Wiesbaden | Verfahren zum herstellen einer gasatmosphaere fuer das gluehen metallischer werkstuecke |
Citations (5)
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 |
FR1504278A (fr) * | 1965-12-09 | 1967-12-01 | Four Electr Delemont Sa Du | Procédé de cémentation gazeuse |
FR2249179A1 (fr) * | 1973-10-26 | 1975-05-23 | Air Prod Ltd | |
FR2296016A1 (fr) * | 1974-12-28 | 1976-07-23 | Kobe Steel Ltd | Procede de traitement thermique d'agglomeres de poudre d'acier |
FR2343817A1 (fr) * | 1976-03-11 | 1977-10-07 | Airco Inc | Procede de carburation ou de carbonitruration de pieces en acier |
-
1977
- 1977-04-27 GB GB17609/77A patent/GB1575342A/en not_active Expired
-
1978
- 1978-04-27 FR FR7812463A patent/FR2388896A2/fr active Granted
- 1978-04-27 DE DE19782818558 patent/DE2818558A1/de not_active Ceased
- 1978-04-27 ZA ZA00782403A patent/ZA782403B/xx unknown
Patent Citations (5)
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 |
FR1504278A (fr) * | 1965-12-09 | 1967-12-01 | Four Electr Delemont Sa Du | Procédé de cémentation gazeuse |
FR2249179A1 (fr) * | 1973-10-26 | 1975-05-23 | Air Prod Ltd | |
FR2296016A1 (fr) * | 1974-12-28 | 1976-07-23 | Kobe Steel Ltd | Procede de traitement thermique d'agglomeres de poudre d'acier |
FR2343817A1 (fr) * | 1976-03-11 | 1977-10-07 | Airco Inc | Procede de carburation ou de carbonitruration de pieces en acier |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0013654A1 (fr) * | 1979-01-15 | 1980-07-23 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé de traitement thermique de l'acier et de contrôle dudit traitement; acier ainsi obtenu |
EP0089885A2 (fr) * | 1982-03-23 | 1983-09-28 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé de durcissement superficiel de pièces métalliques |
EP0089885A3 (en) * | 1982-03-23 | 1984-12-05 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method of surface-hardening metallic parts |
US4531984A (en) * | 1982-03-23 | 1985-07-30 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Surface hardening process for metal parts |
Also Published As
Publication number | Publication date |
---|---|
DE2818558A1 (de) | 1978-11-09 |
FR2388896B2 (fr) | 1981-01-09 |
GB1575342A (en) | 1980-09-17 |
ZA782403B (en) | 1979-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2411244B1 (fr) | Procede pour la fabrication de demi-produits en un alliage al-mn presentant des proprietes mecaniques ameliorees et produits obtenus | |
FR2395969A1 (fr) | Compositions pour ciments a base d'amiante, leur procede de production et leurs applications | |
BE827962A (fr) | Procede pour le traitement de metal fondu dans une enceinte de reaction a garnissage refractaire | |
FR2388896A2 (fr) | Procede de traitement thermique de metaux ferreux | |
IT1100493B (it) | Procedimento di trattamento termico di prodotti spessi in leghe di alluminio della serie 7000 contenenti del rame | |
IT7819729A0 (it) | Camera di cokefazione e processo per la produzione di coke per grafite. | |
FR2453833A1 (fr) | Procede pour l'obtention d'une charge de verre contenant de l'acide borique anhydre | |
FR2400559A1 (fr) | Procede et installation pour rechauffage en continu du fer en fusion | |
BE803050A (fr) | Procede et appareil pour la production et le refroidissement de gaz contenant de l'hydrogene et de l'oxyde de carbone | |
RO75791A (fr) | Procede pour le traitement thermique des materiaux | |
FR2400681A1 (fr) | Nouvelles parois de fours utilisables a hautes temperatures | |
BE856823A (fr) | Procede de traitement de surface pour le travail a froid d'un acier au carbone et d'un acier allie | |
FR2392126A1 (fr) | Procede et dispositif pour ajouter un agent de traitement a du metal en fusion | |
BE824414R (fr) | Procede d'affinage de metaux ferreux | |
ES8702636A1 (es) | Procedimiento y dispositivo para la fusion de metales lige- ros | |
ES474118A1 (es) | Perfeccionamientos en hornos para soldar aluminio por vacio. | |
JPS5285906A (en) | Lining of heating furnace skid pipe | |
FR2393841A1 (fr) | Procede pour fabriquer un produit a haute teneur en carbone a partir d'un materiau residuel a base de suie | |
SU730458A1 (ru) | Устройство дл непрерывного лить металла | |
FR2409315A1 (fr) | Procede pour obtenir des briquettes destinees a des fours verticaux de reduction et briquettes ainsi obtenues | |
FR2303860A1 (fr) | Procede de traitement thermique de pieces d'acier sans formation d'oxydes des elements d'alliage en surface | |
FR2375337A1 (fr) | Procede perfectionne pour durcir une matiere minerale en surface par diffusion d'une autre matiere minerale | |
SU659640A1 (ru) | Способ переплава алюминиевых сплавов в газопламенных печах | |
FR2355896A1 (fr) | Procede pour ignifuger des matieres fibreuses en polyester avec des sulfurylamides substitues | |
SU689000A1 (ru) | Электрододержатель дуговой электропечи |