ES8200926A1 - Un metodo de recocer un articulo de metal ferreo - Google Patents

Un metodo de recocer un articulo de metal ferreo

Info

Publication number
ES8200926A1
ES8200926A1 ES496153A ES496153A ES8200926A1 ES 8200926 A1 ES8200926 A1 ES 8200926A1 ES 496153 A ES496153 A ES 496153A ES 496153 A ES496153 A ES 496153A ES 8200926 A1 ES8200926 A1 ES 8200926A1
Authority
ES
Spain
Prior art keywords
annealing
spheroidizing
ferrous metals
protective atmosphere
atmosphere process
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
ES496153A
Other languages
English (en)
Other versions
ES496153A0 (es
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of ES496153A0 publication Critical patent/ES496153A0/es
Publication of ES8200926A1 publication Critical patent/ES8200926A1/es
Expired 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
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/32—Soft annealing, e.g. spheroidising

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

METODO DE RECOCIDO DE METALES FERREOS BAJO ATMOSFERAS CONTROLADAS. SE CARACTERIZA POR EL RECORRIDO DE UN METAL FERREO EN VARIAS ETAPAS. PRIMERO SE INTRODUCEN LO S PRODUCTOS A TRATAR EN UN HORNO MANTENIDO A UNA TEMPERATURA SUPERIOR A LA TRANSFORMACION DEL PRODUCTO. SE INTRODUCE EN EL HORNO, A LA TEMPERATURA AMBIENTE, UNA MEZCLA DE 0,1 A 10 POR 100 MOLAR DE METANOL Y EL RESTO DE NITROGENO GASEOSO. ESTA MEZCLA FORMA UNA ATMOSFERA PROTECTORA QUE INHIBE LA DESCARBURACION. SE MANTINEN LOS PRODUCTOS EN EL INTERIOR DEL HORNO, HASTQ QUE EXPERIMENTAN UNA TRANSFORMACION CRISTALINA EN AUSTENITA. FINALMENTE SE ENFRIAN HASTA LA TEMPERATURA AMBIENE A LA VELOCIDAD ADECUADA PARA OBTENER LA MICROESTRUCTURA APROPIADA PARA LAS SIGUIENTES OPERACION DE FABRICACION.
ES496153A 1979-10-23 1980-10-22 Un metodo de recocer un articulo de metal ferreo Expired ES8200926A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/087,360 US4359351A (en) 1979-10-23 1979-10-23 Protective atmosphere process for annealing and or spheroidizing ferrous metals

Publications (2)

Publication Number Publication Date
ES496153A0 ES496153A0 (es) 1981-11-16
ES8200926A1 true ES8200926A1 (es) 1981-11-16

Family

ID=22204722

Family Applications (2)

Application Number Title Priority Date Filing Date
ES496153A Expired ES8200926A1 (es) 1979-10-23 1980-10-22 Un metodo de recocer un articulo de metal ferreo
ES498036A Granted ES498036A0 (es) 1979-10-23 1980-12-22 Un metodo mejorado para esferoidizar un articulo de metal ferreo

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES498036A Granted ES498036A0 (es) 1979-10-23 1980-12-22 Un metodo mejorado para esferoidizar un articulo de metal ferreo

Country Status (9)

Country Link
US (1) US4359351A (es)
EP (1) EP0027649A1 (es)
JP (1) JPS5665920A (es)
AR (1) AR222104A1 (es)
BR (1) BR8006801A (es)
CA (1) CA1147634A (es)
ES (2) ES8200926A1 (es)
MX (1) MX152840A (es)
ZA (1) ZA806460B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648914A (en) * 1984-10-19 1987-03-10 The Boc Group, Inc. Process for annealing ferrous wire
DE3440876A1 (de) * 1984-11-08 1986-05-15 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtung zum herstellen einer schutzgasatmosphaere
JP2779170B2 (ja) * 1988-07-25 1998-07-23 マツダ株式会社 浸炭焼入方法
FR2649123B1 (fr) * 1989-06-30 1991-09-13 Air Liquide Procede de traitement thermique de metaux
FR2649124A1 (fr) * 1989-07-03 1991-01-04 Air Liquide Procede de traitement thermique de metaux sous atmosphere
US5102606A (en) * 1991-03-15 1992-04-07 Kimberly-Clark Corporation Primary blade tempering for high speed microcreping
US6620262B1 (en) * 1997-12-26 2003-09-16 Nsk Ltd. Method of manufacturing inner and outer races of deep groove ball bearing in continuous annealing furnace
EP2806241A1 (en) * 2013-05-23 2014-11-26 Linde Aktiengesellschaft Method of providing methanol for a heat treatment atmosphere in furnace

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673821A (en) * 1950-11-18 1954-03-30 Midwest Research Inst Heat treatment of steel in a protective atmosphere
BE545645A (es) 1954-01-29
BE534801A (es) 1954-01-29
GB816051A (en) * 1954-12-18 1959-07-08 Renault Improvements in or relating to a process for preparing a gas suitable for the case hardening of steel
US2875113A (en) * 1957-11-15 1959-02-24 Gen Electric Method of decarburizing silicon steel in a wet inert gas atmosphere
IT649978A (es) 1960-06-17
US3260623A (en) * 1963-10-04 1966-07-12 American Can Co Method of tempering continuously annealed metal sheet
JPS51115222A (en) * 1975-04-02 1976-10-09 Nachi Fujikoshi Corp Method and apparatus for heat treatment of steels in non-explosive atm osphere
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
JPS5277836A (en) * 1975-12-23 1977-06-30 Fujikoshi Kk Surface treatment of martensitic stainless steel
GB2018299A (en) * 1978-01-17 1979-10-17 Boc Ltd Heat treatment of metal
US4139375A (en) * 1978-02-06 1979-02-13 Union Carbide Corporation Process for sintering powder metal parts
FR2446322A2 (fr) * 1979-01-15 1980-08-08 Air Liquide Procede de traitement thermique de l'acier et de controle dudit traitement

Also Published As

Publication number Publication date
US4359351A (en) 1982-11-16
CA1147634A (en) 1983-06-07
MX152840A (es) 1986-06-18
ZA806460B (en) 1981-10-28
ES496153A0 (es) 1981-11-16
EP0027649A1 (en) 1981-04-29
AR222104A1 (es) 1981-04-15
ES8200927A1 (es) 1981-11-16
JPS5665920A (en) 1981-06-04
ES498036A0 (es) 1981-11-16
BR8006801A (pt) 1981-04-28

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