ES8706850A1 - Procedimiento de cementacion rapida en un horno continuo cerrado - Google Patents
Procedimiento de cementacion rapida en un horno continuo cerradoInfo
- Publication number
- ES8706850A1 ES8706850A1 ES556249A ES556249A ES8706850A1 ES 8706850 A1 ES8706850 A1 ES 8706850A1 ES 556249 A ES556249 A ES 556249A ES 556249 A ES556249 A ES 556249A ES 8706850 A1 ES8706850 A1 ES 8706850A1
- Authority
- ES
- Spain
- Prior art keywords
- furnace
- atmosphere
- concentration
- charge
- injected
- 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.)
- Expired
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Tunnel Furnaces (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Carbon And Carbon Compounds (AREA)
- Multiple-Way Valves (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
MODIFICACIONES EN UN PROCEDIMIENTO DE CEMENTACION RAPIDA EN UN HORNO CONTINUO CERRADO. CONSISTENTES EN INYECTAR UN GAS PORTADOR Y UN HIDROCARBURO SUSCEPTIBLES DE ENGORDAR UNA ATMOSFERA CON UNA CONCENTRACION NOMINAL DE MONOXIDO DE CARBONO, AUMENTANDO CON LA MISMA PERIODICIDAD LA CONCENTRACION DE MONOXIDO DE CARBONO DE LA ATMOSFERA INYECTADA EN EL HORNO, PARA COMPENSAR EL AUMENTO DE LA CONCENTRACION DE ESPECIES OXIDANTES DEL HORNO Y MANTENER ASI SENSIBLEMENTE CONSTANTE EL POTENCIAL CARBONO DE LA ATMOSFERA DE CEMENTACION DEL HORNO DURANTE LA DURACION DE CEMENTACION DE LAS PIEZAS DE CEMENTAR. TIENE APLICACION EN LA CEMENTACION DE CARGAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8512380A FR2586259B1 (fr) | 1985-08-14 | 1985-08-14 | Procede de cementation rapide dans un four continu |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8706850A1 true ES8706850A1 (es) | 1987-07-01 |
ES556249A0 ES556249A0 (es) | 1987-07-01 |
Family
ID=9322228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES556249A Expired ES8706850A1 (es) | 1985-08-14 | 1986-06-19 | Procedimiento de cementacion rapida en un horno continuo cerrado |
Country Status (11)
Country | Link |
---|---|
US (1) | US4769090A (es) |
EP (1) | EP0213991B1 (es) |
JP (1) | JPS6240359A (es) |
AT (1) | ATE40416T1 (es) |
AU (1) | AU587045B2 (es) |
BR (1) | BR8603865A (es) |
CA (1) | CA1259550A (es) |
DE (1) | DE3661943D1 (es) |
ES (1) | ES8706850A1 (es) |
FR (1) | FR2586259B1 (es) |
ZA (1) | ZA865392B (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2586258B1 (fr) * | 1985-08-14 | 1987-10-30 | Air Liquide | Procede pour la cementation rapide et homogene d'une charge dans un four |
FR2623209B1 (fr) * | 1987-11-17 | 1993-09-03 | Air Liquide | Procede de traitement thermique sous atmosphere gazeuse a base d'azote et d'hydrocarbure |
FR2626292A1 (fr) * | 1988-01-26 | 1989-07-28 | Paturle Aciers | Procede de traitement thermochimique superficiel de bandes d'acier et en particulier de bandes de faibles epaisseurs et installation pour sa mise en oeuvre |
IT1229078B (it) * | 1988-03-16 | 1991-07-18 | Air Liquide | Procedimento e dispositivo di trattamento di ricottura di articoli metallici. |
FR2639250B1 (es) * | 1988-11-24 | 1990-12-28 | Air Liquide | |
US5133813A (en) * | 1990-07-03 | 1992-07-28 | Tokyo Heat Treating Company Ltd. | Gas-carburizing process and apparatus |
DE4400391A1 (de) * | 1994-01-08 | 1995-07-13 | Messer Griesheim Gmbh | Verfahren zur Vermeidung von Randoxidation beim Aufkohlen von Stählen |
US5934871A (en) * | 1997-07-24 | 1999-08-10 | Murphy; Donald G. | Method and apparatus for supplying a anti-oxidizing gas to and simultaneously cooling a shaft and a fan in a heat treatment chamber |
CN102828143A (zh) * | 2012-08-30 | 2012-12-19 | 天津创真金属科技有限公司 | 工件高温渗碳工艺 |
CN113215519B (zh) * | 2021-04-19 | 2023-08-15 | 常州天山重工机械有限公司 | 一种无马弗罐碳饱和控制工艺 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US26935A (en) * | 1860-01-24 | Attaching bonnets to sails | ||
FR439241A (fr) * | 1911-01-25 | 1912-06-08 | Giovanni Romei | Perfectionnements dans les roues pour chars et autres véhicules en général |
US2955062A (en) * | 1952-02-27 | 1960-10-04 | Midland Ross Corp | Method for carburizing in a continuous furnace |
US4049472A (en) * | 1975-12-22 | 1977-09-20 | Air Products And Chemicals, Inc. | Atmosphere compositions and methods of using same for surface treating ferrous metals |
US4145232A (en) * | 1977-06-03 | 1979-03-20 | Union Carbide Corporation | Process for carburizing steel |
CH632013A5 (de) * | 1977-09-22 | 1982-09-15 | Ipsen Ind Int Gmbh | Verfahren zur gasaufkohlung von werkstuecken aus stahl. |
US4175986A (en) * | 1978-10-19 | 1979-11-27 | Trw Inc. | Inert carrier gas heat treating control process |
US4306918A (en) * | 1980-04-22 | 1981-12-22 | Air Products And Chemicals, Inc. | Process for carburizing ferrous metals |
DE3038081A1 (de) * | 1980-10-08 | 1982-05-06 | Linde Ag, 6200 Wiesbaden | Verfahren zum aufkohlen und kohlungsneutralen gluehen von werkstuecken |
DE3038082A1 (de) * | 1980-10-08 | 1982-05-06 | Linde Ag, 6200 Wiesbaden | Verfahren zum einsatzhaerten metallischer werkstuecke |
DE3149212A1 (de) * | 1981-01-14 | 1982-08-05 | Holcroft & Co., Livonia, Mich. | Verfahren zur eintellung von ofen-atmosphaeren |
FR2527641A1 (fr) * | 1982-05-28 | 1983-12-02 | Air Liquide | Procede de traitement thermique de pieces metalliques par carburation |
DE3310733C2 (de) * | 1983-03-24 | 1986-04-03 | Daimler-Benz Ag, 7000 Stuttgart | Verfahren zur Verringerung des Schutzgasverbrauchs sowie der Randoxidation von zu behandelnden Bauteilen in Schleusen-Durchstoßanlagen mit Endogas als brennbarem Schutzgas |
JPS6130659A (ja) * | 1984-07-20 | 1986-02-12 | Tokyo Netsu Shiyori Kogyo Kk | 窒素ベ−スガス浸炭法 |
FR2586258B1 (fr) * | 1985-08-14 | 1987-10-30 | Air Liquide | Procede pour la cementation rapide et homogene d'une charge dans un four |
-
1985
- 1985-08-14 FR FR8512380A patent/FR2586259B1/fr not_active Expired
-
1986
- 1986-06-19 ES ES556249A patent/ES8706850A1/es not_active Expired
- 1986-07-10 US US06/883,927 patent/US4769090A/en not_active Expired - Lifetime
- 1986-07-16 AU AU60225/86A patent/AU587045B2/en not_active Ceased
- 1986-07-16 DE DE8686401584T patent/DE3661943D1/de not_active Expired
- 1986-07-16 EP EP86401584A patent/EP0213991B1/fr not_active Expired
- 1986-07-16 AT AT86401584T patent/ATE40416T1/de not_active IP Right Cessation
- 1986-07-18 ZA ZA865392A patent/ZA865392B/xx unknown
- 1986-08-13 BR BR8603865A patent/BR8603865A/pt not_active IP Right Cessation
- 1986-08-13 CA CA000515899A patent/CA1259550A/fr not_active Expired
- 1986-08-14 JP JP61189733A patent/JPS6240359A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
ZA865392B (en) | 1987-03-25 |
ATE40416T1 (de) | 1989-02-15 |
CA1259550A (fr) | 1989-09-19 |
US4769090A (en) | 1988-09-06 |
BR8603865A (pt) | 1987-03-24 |
ES556249A0 (es) | 1987-07-01 |
AU587045B2 (en) | 1989-08-03 |
JPS6356304B2 (es) | 1988-11-08 |
JPS6240359A (ja) | 1987-02-21 |
FR2586259B1 (fr) | 1987-10-30 |
EP0213991B1 (fr) | 1989-01-25 |
DE3661943D1 (en) | 1989-03-02 |
AU6022586A (en) | 1987-02-19 |
FR2586259A1 (fr) | 1987-02-20 |
EP0213991A1 (fr) | 1987-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4049473A (en) | Methods for carburizing steel parts | |
GB1471880A (en) | Furnace atmosphere for the heat treatment of ferrous metal | |
IE46155L (en) | Converting iron oxide to iron carbide | |
ES8706850A1 (es) | Procedimiento de cementacion rapida en un horno continuo cerrado | |
ES8206658A1 (es) | Procedimiento paa endurecer por cementacion piezas de traba-jo metalicas. | |
ATE29154T1 (de) | Verfahren zur oberflaechenhaertung von metallteilen. | |
US4519853B1 (es) | ||
ES461548A1 (es) | Procedimiento para la regulacion de una carburacion de pie- zas al vacio. | |
US4776901A (en) | Nitrocarburizing and nitriding process for hardening ferrous surfaces | |
ATE40415T1 (de) | Verfahren zur schnellen und homogenen aufkohlung von werkstuecken in einem ofen. | |
ES8200927A1 (es) | Un metodo mejorado para esferoidizar un articulo de metal ferreo | |
DE68914624D1 (de) | Verfahren und Anlage für Wärmebehandlungen wie Einsatzhärten, Karbonitrieren oder Erwärmung vor dem Härten von metallischen Werkstoffen. | |
GB1461083A (en) | Methods of treating metal | |
DE69902258D1 (de) | Verfahren und vorrichtung zur reduktion von eisenoxiden | |
JPH0726191B2 (ja) | 歯車の浸炭浸窒法 | |
JPH0138870B2 (es) | ||
DE59604291D1 (de) | Verfahren zur Plasmaaufkohlung metallischer Werkstücke | |
ATE73859T1 (de) | Verfahren zur erzreduktion im schachtofen. | |
DE59604119D1 (de) | Verfahren zum Nitrieren und/oder Nitrocarburieren metallischer Werkstücke | |
RU1780340C (ru) | Способ химико-термической обработки стальных деталей | |
JPS51141739A (en) | Method of controlling carbon concentration in gas carburizing furnace | |
GB1507954A (en) | Carburising heat treatments | |
Shepherd | Applications of fluidized bed furnaces for the heat treatment of tool steels | |
Bavaro et al. | Results of Industrial Carburizing Tests With Methyl Alcohol | |
Astolfi | Gas Techniques in the Heat Treatment of Metals |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed |
Effective date: 19960506 |