ES470447A1 - Un procedimiento mejorado para cementar acero en un horno - Google Patents

Un procedimiento mejorado para cementar acero en un horno

Info

Publication number
ES470447A1
ES470447A1 ES470447A ES470447A ES470447A1 ES 470447 A1 ES470447 A1 ES 470447A1 ES 470447 A ES470447 A ES 470447A ES 470447 A ES470447 A ES 470447A ES 470447 A1 ES470447 A1 ES 470447A1
Authority
ES
Spain
Prior art keywords
flow rate
carburizing
steel
carburizing steel
passages
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
Application number
ES470447A
Other languages
English (en)
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES470447A1 publication Critical patent/ES470447A1/es
Expired 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Un procedimiento mejorado para cementar acero en un horno que tiene al menos una cámara de cementación, estando dicha cámara cerrada excepto por al menos un paso por el que el acero entra y sale de la cámara, y que tiene medios para abrir y cerrar el paso, comprendiendo dicho procedimiento abrir el paso, introducir acero por el paso en la cámara, cerrar el paso, exponer el acero a una atmósfera de cementación a una temperatura comprendida entre aproximadamente 649ºC y aproximadamente 1.204ºC hasta que se cementa el acero, abrir el paso, retirar el acero por el paso, y cerrar el paso, en donde la mejora comprende introducir un gas vehículo y un hidrocarburo gaseoso en la cámara, para proporcionar la atmósfera de cementación, comprendiendo dicha atmósfera, en tanto por ciento en volumen, aproximadamente 4 a aproximadamente 30% de monóxido de carbono, aproximadamente 10 a aproximadamente 60% de hidrógeno, aproximadamente 10 a aproximadamente 85% de nitrógeno, 0 a aproximadamente 4% de dióxidode carbono, 0 a aproximadamente 5% de vapor de agua y aproximadamente 1 a aproximadamente 10% de hidrocarburo, estando basado dicho tanto por ciento en volumen en el volumen total de la atmósfera.
ES470447A 1977-06-03 1978-06-02 Un procedimiento mejorado para cementar acero en un horno Expired ES470447A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/803,202 US4145232A (en) 1977-06-03 1977-06-03 Process for carburizing steel

Publications (1)

Publication Number Publication Date
ES470447A1 true ES470447A1 (es) 1979-01-01

Family

ID=25185880

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470447A Expired ES470447A1 (es) 1977-06-03 1978-06-02 Un procedimiento mejorado para cementar acero en un horno

Country Status (11)

Country Link
US (1) US4145232A (es)
BE (1) BE867782A (es)
BR (1) BR7803544A (es)
CA (1) CA1099203A (es)
CH (1) CH634112A5 (es)
DE (1) DE2824171A1 (es)
ES (1) ES470447A1 (es)
FR (1) FR2393077A1 (es)
IT (1) IT1104655B (es)
MX (1) MX5896E (es)
NL (1) NL7806040A (es)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH628092A5 (de) * 1978-03-21 1982-02-15 Ipsen Ind Int Gmbh Verfahren und vorrichtung zur regelung des kohlenstoffpegels eines chemisch reagierenden gasgemisches.
FR2446322A2 (fr) * 1979-01-15 1980-08-08 Air Liquide Procede de traitement thermique de l'acier et de controle dudit traitement
US4366008A (en) * 1979-02-09 1982-12-28 Kabushiki Kaisha Fujikoshi Method for hardening steel
US4288062A (en) * 1979-08-09 1981-09-08 Holcroft Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace
US4362580A (en) * 1980-02-04 1982-12-07 Corning Glass Works Furnace and method with sensor
US4306918A (en) * 1980-04-22 1981-12-22 Air Products And Chemicals, Inc. Process for carburizing ferrous metals
ZA812776B (en) * 1980-05-02 1982-07-28 African Oxygen Ltd Heat treatment of metals
GB2076023B (en) * 1980-05-02 1983-08-03 Air Prod & Chem Gas carburising
US4334938A (en) * 1980-08-22 1982-06-15 Air Products And Chemicals, Inc. Inhibited annealing of ferrous metals containing chromium
US4306919A (en) * 1980-09-04 1981-12-22 Union Carbide Corporation Process for carburizing steel
US4445945A (en) * 1981-01-14 1984-05-01 Holcroft & Company Method of controlling furnace atmospheres
US4386973A (en) * 1981-05-08 1983-06-07 General Signal Corporation Vacuum carburizing steel
US4378257A (en) * 1981-05-11 1983-03-29 Daimler-Benz Aktiengesellschaft Process for the temporary shutdown of continuous discharge carburizing plants
DE3235807A1 (de) * 1981-10-01 1983-04-21 Kabushiki Kaisha Komatsu Seisakusho, Tokyo Oberflaechenhaertung von stahl durch waermebehandlung
US4597807A (en) * 1984-11-13 1986-07-01 Air Products And Chemicals, Inc. Accelerated carburizing method with discrete atmospheres
FR2586259B1 (fr) * 1985-08-14 1987-10-30 Air Liquide Procede de cementation rapide dans un four continu
FR2586258B1 (fr) * 1985-08-14 1987-10-30 Air Liquide Procede pour la cementation rapide et homogene d'une charge dans un four
WO1992005295A1 (en) * 1986-08-12 1992-04-02 Nobuo Nishioka Gas carburizing process and apparatus
AT392899B (de) * 1988-02-18 1991-06-25 Klampfer Franz Vorrichtung zur massage und entspannung
US5527399A (en) * 1993-08-30 1996-06-18 The Arnold Engineering Company Magnetic strips and methods for making the same
US5431746A (en) * 1993-08-30 1995-07-11 Sps Technologies, Inc. Method for making thin magnetic strips
JP5428031B2 (ja) * 2001-06-05 2014-02-26 Ｄｏｗａサーモテック株式会社 浸炭処理方法及びその装置
US7468107B2 (en) * 2002-05-01 2008-12-23 General Motors Corporation Carburizing method
US6969430B2 (en) * 2002-06-05 2005-11-29 Praxair Technology, Inc. Process and apparatus for producing atmosphere for high productivity carburizing
US20030226620A1 (en) * 2002-06-05 2003-12-11 Van Den Sype Jaak Stefaan Process and apparatus for producing amtospheres for high productivity carburizing
US7431777B1 (en) * 2003-05-20 2008-10-07 Exxonmobil Research And Engineering Company Composition gradient cermets and reactive heat treatment process for preparing same
WO2004111292A1 (ja) * 2003-06-12 2004-12-23 Koyo Thermo Systems Co., Ltd. ガス浸炭方法
WO2005068679A1 (ja) * 2004-01-20 2005-07-28 Parker Netsushori Kogyo K.K. 金属部材表面の活性化方法
US20050269074A1 (en) * 2004-06-02 2005-12-08 Chitwood Gregory B Case hardened stainless steel oilfield tool
US20080149225A1 (en) * 2006-12-26 2008-06-26 Karen Anne Connery Method for oxygen free carburization in atmospheric pressure furnaces
US20080149227A1 (en) * 2006-12-26 2008-06-26 Karen Anne Connery Method for oxygen free carburization in atmospheric pressure furnaces
JP4295350B1 (ja) * 2008-09-17 2009-07-15 エア・ウォーター株式会社 熱処理炉の使用方法および熱処理方法ならびに熱処理炉
US9365919B2 (en) * 2010-12-17 2016-06-14 Bhagavan Raghavan Method for reduction of time in a gas carburizing process and cooling apparatus utilizing a high speed quenching oil flow rate
MX2018011359A (es) * 2016-03-30 2019-01-31 Nhk Spring Co Ltd Miembro de muelle hueco y metodo de produccion de muelle hueco.
JP6592588B2 (ja) * 2016-03-30 2019-10-16 日本発條株式会社 中空スタビライザ製造方法及び中空スタビライザ製造装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1961766A (en) * 1933-02-28 1934-06-05 Gen Electric Furnace
US2886478A (en) * 1953-06-29 1959-05-12 Honeywell Regulator Co Method and control apparatus for carburizing ferrous objects
GB910741A (en) * 1957-10-02 1962-11-21 Efco Furnaces Ltd Improvements relating to batch-type controlled-atmosphere heat-treatment furnaces
IT649978A (es) * 1960-06-17
DE1433735B1 (de) * 1963-09-21 1969-09-04 Werner Goehring Verfahren zur Erzielung einer Ofenatmosphaere,mit der eine oxydationsfreie Waermebehandlung von Werkstuecken aus Stahl unter gleichzeitiger Beeinflussung des Kohlenstoffgehalts durchfuehrbar ist
US3356541A (en) * 1965-08-20 1967-12-05 Midland Ross Corp Carburizing method and apparatus
US3397875A (en) * 1966-05-20 1968-08-20 Leeds & Northrup Co Apparatus for maintaining a carburizing atmosphere during heat treatment
US4008163A (en) * 1970-04-14 1977-02-15 Ingels Glenn R Method of preparing a saturated fluid mixture
US3693409A (en) * 1970-10-12 1972-09-26 Tokyo Gas Co Ltd Method and apparatus for measuring the carbon potential in gas atmospheres
GB1471880A (en) * 1973-10-26 1977-04-27 Air Prod & Chem Furnace atmosphere for the heat treatment of ferrous metal
US3950192A (en) * 1974-10-30 1976-04-13 Monsanto Company Continuous carburizing method
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
US4049473A (en) * 1976-03-11 1977-09-20 Airco, Inc. Methods for carburizing steel parts

Also Published As

Publication number Publication date
BR7803544A (pt) 1979-02-20
IT1104655B (it) 1985-10-21
FR2393077A1 (fr) 1978-12-29
US4145232A (en) 1979-03-20
FR2393077B1 (es) 1983-04-15
IT7849693A0 (it) 1978-06-02
CH634112A5 (fr) 1983-01-14
NL7806040A (nl) 1978-12-05
CA1099203A (en) 1981-04-14
BE867782A (fr) 1978-12-04
DE2824171A1 (de) 1978-12-07
MX5896E (es) 1984-08-22

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