FR2404051A1 - Procede de cementation gazeuse des pieces en acier - Google Patents

Procede de cementation gazeuse des pieces en acier

Info

Publication number
FR2404051A1
FR2404051A1 FR7826757A FR7826757A FR2404051A1 FR 2404051 A1 FR2404051 A1 FR 2404051A1 FR 7826757 A FR7826757 A FR 7826757A FR 7826757 A FR7826757 A FR 7826757A FR 2404051 A1 FR2404051 A1 FR 2404051A1
Authority
FR
France
Prior art keywords
gas
steel parts
cementation process
parts
gas cementation
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
FR7826757A
Other languages
English (en)
Other versions
FR2404051B1 (fr
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.)
Ipsen International GmbH
Original Assignee
Ipsen International GmbH
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 Ipsen International GmbH filed Critical Ipsen International GmbH
Publication of FR2404051A1 publication Critical patent/FR2404051A1/fr
Application granted granted Critical
Publication of FR2404051B1 publication Critical patent/FR2404051B1/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
    • C23C8/08—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
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Dans ce procédé de cémentation gazeuse des pièces en acier dans un four, qui est du type comportant une phase initiale dans laquelle on dissout dans la surface des pièces une quantité de carbone supérieure à la quantité finale désirée, tandis que, dans la phase finale, on ramène le taux de carbone à la valeur marginale désirée au moyen d'un gaz décarburant dont on règle le débit, l'opération de décarburation partielle s'effectue en introduisant dans la chambre du four exclusivement un gaz décarburant exempt d'hydrogène et contenant de l'oxygène, par exemple de l'air.
FR7826757A 1977-09-22 1978-09-19 Procede de cementation gazeuse des pieces en acier Granted FR2404051A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1160877A CH632013A5 (de) 1977-09-22 1977-09-22 Verfahren zur gasaufkohlung von werkstuecken aus stahl.

Publications (2)

Publication Number Publication Date
FR2404051A1 true FR2404051A1 (fr) 1979-04-20
FR2404051B1 FR2404051B1 (fr) 1982-04-30

Family

ID=4375117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826757A Granted FR2404051A1 (fr) 1977-09-22 1978-09-19 Procede de cementation gazeuse des pieces en acier

Country Status (9)

Country Link
US (1) US4201600A (fr)
JP (1) JPS5454931A (fr)
CH (1) CH632013A5 (fr)
DD (1) DD138332A5 (fr)
DE (1) DE2837272B2 (fr)
ES (1) ES473545A1 (fr)
FR (1) FR2404051A1 (fr)
GB (1) GB2006832A (fr)
IT (1) IT1098905B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586258A1 (fr) * 1985-08-14 1987-02-20 Air Liquide Procede pour la cementation rapide et homogene d'une charge dans un four
EP0859067A1 (fr) * 1997-02-18 1998-08-19 Dowa Mining Co., Ltd. Methode et appareillage pour contrÔler l'atmosphère d'un four de traitement thermique

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414043A (en) * 1982-01-22 1983-11-08 United States Steel Corporation Continuous decarburization annealing with recycle to convert carbon monoxide
JPS61117268A (ja) * 1984-11-13 1986-06-04 Chugai Ro Kogyo Kaisha Ltd 鋼材部品の真空浸炭方法
CA1227727A (fr) * 1984-11-21 1987-10-06 Kaare Johnsen Methode de finition a la magnetite de produits faconnes en acier, et produits ainsi obtenus
FR2586259B1 (fr) * 1985-08-14 1987-10-30 Air Liquide Procede de cementation rapide dans un four continu
SE466755B (sv) * 1989-06-30 1992-03-30 Aga Ab Foerfarande foer uppkolning av staal med reducering av vaetehalten i uppkolningsskiktet
JP3301857B2 (ja) * 1994-03-29 2002-07-15 マツダ株式会社 浸炭処理方法
US5663124A (en) * 1994-12-09 1997-09-02 Ford Global Technologies, Inc. Low alloy steel powder for plasma deposition having solid lubricant properties
DE10139620A1 (de) * 2001-08-11 2003-02-27 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen und ein Verfahren zur Härtung desselben
JP3884310B2 (ja) * 2002-03-22 2007-02-21 愛三工業株式会社 電磁式燃料噴射弁
US20050016831A1 (en) * 2003-07-24 2005-01-27 Paganessi Joseph E. Generation of acetylene for on-site use in carburization and other processes
JP5233258B2 (ja) * 2007-12-03 2013-07-10 アイシン精機株式会社 炭素濃度制御された鋼表面を有する鋼材の製造方法及び製造装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768317A (en) * 1929-03-30 1930-06-24 Peoples Gas By Products Corp Process of carburizing iron or steel
US1932032A (en) * 1932-01-28 1933-10-24 Surface Combustion Corp Continuous carburizing process
DE632935C (de) * 1931-05-16 1936-07-16 Benno Schilde Maschb Akt Ges Verfahren und Einrichtung zur Oberflaechenkohlung von Eisen und Stahl
FR835931A (fr) * 1938-03-30 1939-01-05 Procédé pour la cémentation gazeuse de pièces en acier
FR1039618A (fr) * 1951-02-03 1953-10-08 Procédés et dispositifs de cémentation au carbone, à vitesse de pénétration accélérée
FR1164640A (fr) * 1955-12-06 1958-10-13 Elino Ind Ofenbau Carl Hanf & Procédé pour la cémentation, la nitruration et la carbonitruration de pièces en acier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22452E (en) 1944-03-07 Method of making powdered iron
US1100193A (en) * 1910-03-24 1914-06-16 Carnegie Steel Company Process of treating armor-plates.
US1076768A (en) * 1911-02-04 1913-10-28 William H Jones Process of treating steel and steel alloys.
US2170158A (en) * 1935-11-04 1939-08-22 Rennerfelt Ivar Method of decarbonizing a carbon holding metal, for instance pig iron
US2201181A (en) * 1936-10-19 1940-05-21 Kalling Bo Michael Sture Method of decarbonizing carbonholding iron without melting
US2827407A (en) * 1954-06-15 1958-03-18 Federal Mogul Corp Method of producing powdered steel products
US3313660A (en) * 1963-07-15 1967-04-11 Crucible Steel Co America Cutting articles and stock therefor and methods of making the same
US4035203A (en) * 1973-12-21 1977-07-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for the heat-treatment of steel and for the control of said treatment
US4030712A (en) * 1975-02-05 1977-06-21 Alco Standard Corporation Method and apparatus for circulating a heat treating gas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768317A (en) * 1929-03-30 1930-06-24 Peoples Gas By Products Corp Process of carburizing iron or steel
DE632935C (de) * 1931-05-16 1936-07-16 Benno Schilde Maschb Akt Ges Verfahren und Einrichtung zur Oberflaechenkohlung von Eisen und Stahl
US1932032A (en) * 1932-01-28 1933-10-24 Surface Combustion Corp Continuous carburizing process
FR835931A (fr) * 1938-03-30 1939-01-05 Procédé pour la cémentation gazeuse de pièces en acier
FR1039618A (fr) * 1951-02-03 1953-10-08 Procédés et dispositifs de cémentation au carbone, à vitesse de pénétration accélérée
FR1164640A (fr) * 1955-12-06 1958-10-13 Elino Ind Ofenbau Carl Hanf & Procédé pour la cémentation, la nitruration et la carbonitruration de pièces en acier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586258A1 (fr) * 1985-08-14 1987-02-20 Air Liquide Procede pour la cementation rapide et homogene d'une charge dans un four
EP0213011A1 (fr) * 1985-08-14 1987-03-04 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé pour la cémentation rapide et homogène d'une charge dans un four
US4744839A (en) * 1985-08-14 1988-05-17 L'air Liquide Process for a rapid and homogeneous carburization of a charge in a furnace
EP0859067A1 (fr) * 1997-02-18 1998-08-19 Dowa Mining Co., Ltd. Methode et appareillage pour contrÔler l'atmosphère d'un four de traitement thermique

Also Published As

Publication number Publication date
DD138332A5 (de) 1979-10-24
ES473545A1 (es) 1979-04-01
GB2006832A (en) 1979-05-10
JPS5454931A (en) 1979-05-01
DE2837272B2 (de) 1980-06-04
DE2837272A1 (de) 1979-03-29
CH632013A5 (de) 1982-09-15
US4201600A (en) 1980-05-06
IT7827927A0 (it) 1978-09-21
FR2404051B1 (fr) 1982-04-30
IT1098905B (it) 1985-09-18

Similar Documents

Publication Publication Date Title
FR2404051A1 (fr) Procede de cementation gazeuse des pieces en acier
FR2668584A1 (fr) Procede d'elaboration d'une atmosphere de traitement thermique et installation de traitement thermique.
GB1461295A (en) Process for the production of epsilon-carconitride layers on ferrous metal parts
FR2416075A1 (fr) Procede de frittage de pieces formees a partir de poudre
ES386534A1 (es) Mejoras en un metodo de descarburacion al vacio de un metalfundido.
FR2387290A1 (fr) Procede d'enrichissement en azote des aciers a l'oxygene pendant leur decarburation
US3850617A (en) Refining of stainless steel
GB671678A (en) Improved method and apparatus for introducing gas into a molten metal
GB1248556A (en) Method and apparatus for purifying and vacuum degassing molten metals
US3619177A (en) Process for deoxidizing copper with natural gas-air mixture
US2346698A (en) Method of producing protective atmospheres
GB1524987A (en) Method for gaseous reduction of metal ores
SU638621A1 (ru) Способ выплавки нержавеющей стали
US2287651A (en) Method of carburizing without deterioration of furnace alloys
SU1384207A3 (ru) Способ получени стали
SU619522A1 (ru) Способ дегазации металла
SU443907A1 (ru) Способ обезуглероживани высоколегированной стали
SU1652375A1 (ru) Способ газовой цементации изделий из сплавов железа
GB833925A (en) A process and apparatus for the vacuum treatment of steel or steel alloy
SU679632A2 (ru) Способ выплавки нержавеющей стали
KR890017367A (ko) 철에서 질소의 제거
SU490844A1 (ru) Способ обезуглероживани жидкой стали
ES270953A1 (es) Procedimiento para la fabricaciën de fundiciën o de acero por reducciën de un mineral u ëxido de hierro
SU604503A3 (ru) Способ термической обработки изделий
SU749906A1 (ru) Способ рафинировани высокохромистых сталей

Legal Events

Date Code Title Description
ST Notification of lapse