ES2148693T3 - Procedimiento de cementacion de metales. - Google Patents

Procedimiento de cementacion de metales.

Info

Publication number
ES2148693T3
ES2148693T3 ES96309409T ES96309409T ES2148693T3 ES 2148693 T3 ES2148693 T3 ES 2148693T3 ES 96309409 T ES96309409 T ES 96309409T ES 96309409 T ES96309409 T ES 96309409T ES 2148693 T3 ES2148693 T3 ES 2148693T3
Authority
ES
Spain
Prior art keywords
gas
oven
prevent
pressure
gas supply
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
ES96309409T
Other languages
English (en)
Other versions
ES2148693T5 (es
Inventor
Toshiyuki Kawamura
Fumitaka Abukawa
Hitoshi Goi
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.)
Dowa Holdings Co Ltd
Original Assignee
Dowa Mining Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18424016&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2148693(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dowa Mining Co Ltd filed Critical Dowa Mining Co Ltd
Application granted granted Critical
Publication of ES2148693T3 publication Critical patent/ES2148693T3/es
Publication of ES2148693T5 publication Critical patent/ES2148693T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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)
  • Furnace Details (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

EN UN METODO DE CEMENTACION DE METALES DE ACUERDO CON LA PRESENTE INVENCION EN DONDE SE INTRODUCEN GAS DE HIDROCARBURO Y GAS DE OXIDACION EN UN HORNO DE TRATAMIENTO TERMICO, UNA PEQUEÑA CANTIDAD DE GAS DE HIDROCARBURO DE BAJA PRESION ES INTRODUCIDA EN EL HORNO DE TRATAMIENTO TERMICO. EL TIEMPO DE DESPLAZAMIENTO Y EL GRADIENTE DEL POTENCIAL DE CARBONO QUE VARIA HACIA UN NIVEL ALTO O BAJO PREDETERMINADO SON CONTROLADOS MEDIANTE EL INCREMENTO O REDUCCION DE LA CANTIDAD DE GAS DE CEMENTACION Y GAS DE OXIDACION A SER SUMINISTRADOS AL HORNO. DESPUES DE QUE EL POTENCIAL DE CARBONO HA ALCANZADO EL NIVEL MAS ALTO O BAJO, EL POTENCIAL DE CARBONO ES MANTENIDO DURANTE UN TIEMPO PREDETERMINADO DE PERIODO PARA EVITAR QUE EL CARBURO DEPOSITADO SE HINCHE. CON EL FIN DE EVITAR QUE EL CONDUCTO DE SUMINISTRO DE GAS (17) CHOQUE CON EL HOLLIN DEL HIDROCARBURO SE VIERTE GAS DE OXIDACION DE PRESION INTERMEDIA EN EL CONDUCTO DE SUMINISTRO DE GAS (17). CON EL FIN DE EVITAR QUE LOS COMPONENTES DE LA ATMOSFERA EN ELHORNO VARIEN DEBIDO AL CAMBIO EN LA PRESION DEL HORNO CUANDO SE ABRA O CIERRE LA PUERTA (16), SE AÑADEN GAS DE HIDROCARBURO DE PRESION BAJA Y GAS DE OXIDACION DE PRESION INTERMEDIA EN EL CONDUCTO DE CONVERSION EN LA ZONA DE PRECALENTAMIENTO. SE SUMINISTRA CO{SUB,2} DE PRESION INTERMEDIA EN CADA CONDUCTO DE SUMINISTRO DE GAS (17) AL MISMO TIEMPO CON EL FIN DE ELIMINAR EL HOLLIN EN CADA UNO DE LOS CONDUCTOS DE SUMINISTRO DE GAS (17) Y PARA EVITAR QUE LA FALTA DE CO SEA INTRODUCIDA EN EL HORNO.
ES96309409T 1995-12-28 1996-12-23 Procedimiento de cementacion de metales. Expired - Lifetime ES2148693T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35242895A JP3460075B2 (ja) 1995-12-28 1995-12-28 金属の浸炭方法
JP35242895 1995-12-28

Publications (2)

Publication Number Publication Date
ES2148693T3 true ES2148693T3 (es) 2000-10-16
ES2148693T5 ES2148693T5 (es) 2005-07-01

Family

ID=18424016

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96309409T Expired - Lifetime ES2148693T5 (es) 1995-12-28 1996-12-23 Procedimiento de cementacion de metales.

Country Status (6)

Country Link
US (1) US5795406A (es)
EP (1) EP0781858B2 (es)
JP (1) JP3460075B2 (es)
KR (1) KR100432956B1 (es)
DE (1) DE69608652T3 (es)
ES (1) ES2148693T5 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4041602B2 (ja) * 1998-10-28 2008-01-30 Ｄｏｗａホールディングス株式会社 鋼部品の減圧浸炭方法
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
JP5428032B2 (ja) * 2001-06-05 2014-02-26 Ｄｏｗａサーモテック株式会社 浸炭処理方法
DE10209382B4 (de) * 2002-03-02 2011-04-07 Robert Bosch Gmbh Verfahren zur Aufkohlung von Bauteilen
JP5209921B2 (ja) * 2007-09-13 2013-06-12 Ｄｏｗａサーモテック株式会社 熱処理方法及び熱処理設備
JP5408465B2 (ja) * 2008-07-24 2014-02-05 アイシン精機株式会社 鋼の浸炭処理方法
CN109504935B (zh) * 2018-12-18 2021-03-05 上海嘉恒热处理有限公司 一种薄片金属件热处理工艺
RU2704044C1 (ru) * 2019-02-02 2019-10-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Курский государственный университет" Способ цементации деталей из конструкционных и инструментальных сталей в цементуемой пасте

Family Cites Families (24)

* 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
JPS5315231A (en) * 1976-07-29 1978-02-10 Komatsu Mfg Co Ltd Process for generating grain boundary oxidation by vacuum carburizing
JPS55128577A (en) * 1979-03-28 1980-10-04 Taiyo Sanso Kk Manufacture of carburizing-nitriding atmosphere gas
JPS565976A (en) * 1979-06-29 1981-01-22 Komatsu Ltd Removing method for soot in vacuum carburizing furnace
JPS5721866A (en) * 1980-07-16 1982-02-04 Toshiba Corp Manufacture of insulated gate type field effect transistor
DE3149212A1 (de) * 1981-01-14 1982-08-05 Holcroft & Co., Livonia, Mich. Verfahren zur eintellung von ofen-atmosphaeren
EP0063655B1 (en) * 1981-04-27 1986-06-18 Air Products And Chemicals, Inc. Process for carburizing ferrous metals
JPS58126975A (ja) * 1982-01-22 1983-07-28 Komatsu Ltd 真空浸炭炉による浸炭処理方法
JPS60228664A (ja) * 1984-04-24 1985-11-13 Chugai Ro Kogyo Kaisha Ltd ガス浸炭炉の炉内状況検知方法
JPS62130271A (ja) * 1985-11-30 1987-06-12 Tokyo Netsushiyori Kogyo Kk 熱処理方法及びその装置
KR910004557B1 (ko) * 1986-08-12 1991-07-06 미쯔비시지도오샤 고오교오 가부시기가이샤 가스침탄방법 및 장치
DE3714283C1 (de) † 1987-04-29 1988-11-24 Ipsen Ind Internat Gmbh Verfahren zur Gasaufkohlung von Stahl
JPS6438870A (en) * 1987-08-04 1989-02-09 Nec Corp Electronic cutform system
FR2623209B1 (fr) * 1987-11-17 1993-09-03 Air Liquide Procede de traitement thermique sous atmosphere gazeuse a base d'azote et d'hydrocarbure
US5133813A (en) * 1990-07-03 1992-07-28 Tokyo Heat Treating Company Ltd. Gas-carburizing process and apparatus
JP2919654B2 (ja) * 1991-08-21 1999-07-12 同和鉱業株式会社 鋼の迅速浸炭法
FR2681332B1 (fr) * 1991-09-13 1994-06-10 Innovatique Sa Procede et dispositif de cementation d'un acier dans une atmosphere a basse pression.
JP3103905B2 (ja) * 1991-11-22 2000-10-30 同和鉱業株式会社 バッチ型雰囲気炉の炉圧調整方法
JPH0621866A (ja) 1992-07-03 1994-01-28 Hitachi Ltd 蓄電池内蔵移動無線通信機
JPH0651904A (ja) * 1992-07-29 1994-02-25 Nec Corp 状態入力複数装置および方法
JP3009792B2 (ja) * 1992-11-17 2000-02-14 トヨタ自動車株式会社 連続式ガス浸炭焼入炉
JPH06172960A (ja) * 1992-12-10 1994-06-21 Nippon Seiko Kk 真空浸炭方法
DE4343927C1 (de) * 1993-12-22 1995-01-05 Linde Ag Verfahren zur Wärmebehandlung von Werkstücken unter Behandlungsgas
DE4427507C1 (de) * 1994-08-03 1995-06-01 Linde Ag Verfahren zur Wärmebehandlung, insbesondere Aufkohlung, metallischer Werkstücke

Also Published As

Publication number Publication date
DE69608652D1 (de) 2000-07-06
EP0781858B2 (en) 2004-12-08
US5795406A (en) 1998-08-18
DE69608652T2 (de) 2001-02-01
ES2148693T5 (es) 2005-07-01
JP3460075B2 (ja) 2003-10-27
KR100432956B1 (ko) 2004-11-03
KR970043264A (ko) 1997-07-26
JPH09184057A (ja) 1997-07-15
DE69608652T3 (de) 2005-07-28
EP0781858A1 (en) 1997-07-02
EP0781858B1 (en) 2000-05-31

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