ES2028338T3 - Procedimiento de tratamiento termico de aceros bajo atmosfera gaseosa a base de nitrogeno y de hidrocarburo. - Google Patents

Procedimiento de tratamiento termico de aceros bajo atmosfera gaseosa a base de nitrogeno y de hidrocarburo.

Info

Publication number
ES2028338T3
ES2028338T3 ES198888402840T ES88402840T ES2028338T3 ES 2028338 T3 ES2028338 T3 ES 2028338T3 ES 198888402840 T ES198888402840 T ES 198888402840T ES 88402840 T ES88402840 T ES 88402840T ES 2028338 T3 ES2028338 T3 ES 2028338T3
Authority
ES
Spain
Prior art keywords
nitrogen
thermal treatment
hydrocarbon
treatment procedure
gaseous atmosphere
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 - Lifetime
Application number
ES198888402840T
Other languages
English (en)
Inventor
Pascal Baldo
Eric Duchateau
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Application granted granted Critical
Publication of ES2028338T3 publication Critical patent/ES2028338T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Furnace Details (AREA)

Abstract

PROCEDIMIENTO DE TRATAMIENTO TERMICO DE ACEROS DEBILMENTE ALEADOS A TEMPERATURAS SUPERIORES A 600 (GRADOS) C COMO EL RECOCIDO, EL CALENTAMIENTO ANTES DE ETC. DICHO TRATAMIENTO SE EFECTUA EN UNA ATMOSFERA DE PROTECCION PRODUCIDA POR INYECCION DE NITROGENO, DE HIDROCARBURO CXHY, Y EVENTUALMENTE DE H, CON UNA REGULACION DE LA ATMOSFERA. SEGUN LA INVENCION SE CONTROLA LA COMPOSICION DE ESPECIES RESIDUALES CH4, CO, H2O Y LA TEMPERATURA DE MEZCLA GASEOSA EN EL HORNO QUE PERMITE DOMINAR LA CARBURACION Y LA DESCARBURACION DE LOS ACEROS TRATADOS.
ES198888402840T 1987-11-17 1988-11-14 Procedimiento de tratamiento termico de aceros bajo atmosfera gaseosa a base de nitrogeno y de hidrocarburo. Expired - Lifetime ES2028338T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8715860A FR2623209B1 (fr) 1987-11-17 1987-11-17 Procede de traitement thermique sous atmosphere gazeuse a base d'azote et d'hydrocarbure

Publications (1)

Publication Number Publication Date
ES2028338T3 true ES2028338T3 (es) 1992-07-01

Family

ID=9356869

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888402840T Expired - Lifetime ES2028338T3 (es) 1987-11-17 1988-11-14 Procedimiento de tratamiento termico de aceros bajo atmosfera gaseosa a base de nitrogeno y de hidrocarburo.

Country Status (10)

Country Link
US (1) US4992113A (es)
EP (1) EP0317407B1 (es)
JP (1) JPH01162722A (es)
KR (1) KR890008333A (es)
AU (1) AU615958B2 (es)
CA (1) CA1318839C (es)
DE (1) DE3868015D1 (es)
ES (1) ES2028338T3 (es)
FR (1) FR2623209B1 (es)
ZA (1) ZA888534B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL89525A0 (en) * 1988-03-21 1989-09-10 Exxon Chemical Patents Inc Silicon-bridged transition metal compounds
KR930001008B1 (ko) * 1989-12-26 1993-02-12 동양나이론 주식회사 열처리 가열로의 분위기 조절방법
US5194228A (en) * 1990-10-12 1993-03-16 General Signal Corporation Fluidized bed apparatus for chemically treating workpieces
US5205485A (en) * 1992-06-25 1993-04-27 The Boc Group, Inc. Apparatus and method of controlling moisture content within a reaction vessel
US5298090A (en) * 1992-12-22 1994-03-29 Air Products And Chemicals, Inc. Atmospheres for heat treating non-ferrous metals and alloys
JP3460075B2 (ja) * 1995-12-28 2003-10-27 同和鉱業株式会社 金属の浸炭方法
NZ314334A (en) * 1996-04-19 1997-09-22 Boc Group Inc Method of heat treating a metal with nitrogen rich gas preheated and then having oxygen-reactive gas added
JPH1012141A (ja) * 1996-06-26 1998-01-16 Mitsubishi Electric Corp Ｃｒｔ内部材の製造方法及び製造装置
FR2777910B1 (fr) * 1998-04-27 2000-08-25 Air Liquide Procede de regulation du potentiel carbone d'une atmosphere de traitement thermique et procede de traitement thermique mettant en oeuvre une telle regulation
US6612154B1 (en) * 1998-12-22 2003-09-02 Furnace Control Corp. Systems and methods for monitoring or controlling the ratio of hydrogen to water vapor in metal heat treating atmospheres
US6591215B1 (en) * 1999-02-18 2003-07-08 Furnace Control Corp. Systems and methods for controlling the activity of carbon in heat treating atmospheres
US6635121B2 (en) 2000-02-04 2003-10-21 American Air Liquide, Inc. Method and apparatus for controlling the decarburization of steel components in a furnace
US6458217B1 (en) * 2000-02-29 2002-10-01 American Air Liquide, Inc. Superadiabatic combustion generation of reducing atmosphere for metal heat treatment
DE10347312B3 (de) * 2003-10-08 2005-04-14 Air Liquide Deutschland Gmbh Verfahren zur Wärmebehandlung von Eisenwerkstoffen
BRPI0515442B1 (pt) * 2004-09-15 2019-06-25 Nippon Steel & Sumitomo Metal Corporation Métodos de produção de peças de alta resistência
US20080187850A1 (en) * 2007-02-06 2008-08-07 Xerox Corporation Tunable electrophotographic imaging member and method of making same
EP3168314A1 (en) * 2015-11-13 2017-05-17 Air Liquide Deutschland GmbH Method for heat treating metallic work pieces
CN114196809A (zh) * 2021-12-21 2022-03-18 新疆八一钢铁股份有限公司 一种降低钢坯加热脱碳的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815305A (en) * 1955-07-20 1957-12-03 Harold N Ipsen Method of and apparatus for heat treating metal parts
NL126085C (es) * 1960-06-17
GB1471880A (en) * 1973-10-26 1977-04-27 Air Prod & Chem Furnace atmosphere for the heat treatment of ferrous metal
FR2285461A1 (fr) * 1974-09-20 1976-04-16 Air Liquide Procede de traitement thermique de l'acier en atmosphere reductrice et non decarburante
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
CH628092A5 (de) * 1978-03-21 1982-02-15 Ipsen Ind Int Gmbh Verfahren und vorrichtung zur regelung des kohlenstoffpegels eines chemisch reagierenden gasgemisches.
GB2044804A (en) * 1979-03-16 1980-10-22 Boc Ltd Heat treatment method
US4445945A (en) * 1981-01-14 1984-05-01 Holcroft & Company Method of controlling furnace atmospheres
JPS6058286B2 (ja) * 1982-06-28 1985-12-19 中外炉工業株式会社 雰囲気ガス加湿装置
FR2586259B1 (fr) * 1985-08-14 1987-10-30 Air Liquide Procede de cementation rapide dans un four continu

Also Published As

Publication number Publication date
CA1318839C (fr) 1993-06-08
AU2496588A (en) 1989-05-18
EP0317407A1 (fr) 1989-05-24
DE3868015D1 (de) 1992-03-05
AU615958B2 (en) 1991-10-17
FR2623209B1 (fr) 1993-09-03
US4992113A (en) 1991-02-12
ZA888534B (en) 1989-09-27
KR890008333A (ko) 1989-07-10
EP0317407B1 (fr) 1992-01-22
JPH01162722A (ja) 1989-06-27
FR2623209A1 (fr) 1989-05-19

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