KR970043264A - 금속의 침탄법 - Google Patents

금속의 침탄법 Download PDF

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Publication number
KR970043264A
KR970043264A KR1019960075271A KR19960075271A KR970043264A KR 970043264 A KR970043264 A KR 970043264A KR 1019960075271 A KR1019960075271 A KR 1019960075271A KR 19960075271 A KR19960075271 A KR 19960075271A KR 970043264 A KR970043264 A KR 970043264A
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South Korea
Prior art keywords
gas
carburizing
furnace
prevent
gas supply
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KR1019960075271A
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English (en)
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KR100432956B1 (ko
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토시유키 키와무라
히토시 고이
후미타카 아부카와
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하라다 켄조
도와 코교 가부시키가이샤
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    • 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

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  • 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

탄화수소가스와 산화가스가 열처리로 속으로 유입되는 본발명에 따른 그속의 침탄법에 있어서, 저압의 소량의 탄화수소가스가 열처리로 속으로 유입된다. 소정의 고레벨 또는 저레벨로 변하는 카본포텐셜의 이동시간 및 기울기는 로에 공급될 침탄가스 및 산화가스의 양을 증감시킴으로써 제어된다. 카본포텐셜이 고레벨 또는 저레벨에 도달한 후, 침착탄화물이 커지는 것을 방지하기 위하여 카본포텐셜이 소정시간 유지된다. 가스공급관(17)이 탄화수소의 그을음으로 막히는 것을 방지하기 위하여 중간압의 산화가스가 가스공급관(17)속으로 유입된다. 문(16)이 개방되거나 폐쇄될 때 로의 압력변화에 의해 로내의 분위기의 성분이 변하는 것을 방지하기 위하여 저압의 탄화수소가스와 중간압의 산화가스가 예열구역의 변환관속에 부가된다. 각각의 가스공급관(17)의 그을음을 제거하고 로속으로 유입된 CO의 부족을 방지하기 위해 중간압의 CO2가 동시에 각각의 가스공급관(17)속으로 공급된다.

Description

금속의 침탄법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
도1은 본 발명에 따른 금속의 침탄법을 설명하는 그래프,
도2는 도1에 도시한 일부의 확대도.
도3은 종래의 배치로의 측단면도.

Claims (6)

  1. 탄화수소가스와 산화수소가스가 열처리로속으로 유입되는 금속의 침탄법에 있어서, 초기분위기를 형성하기 위하여 저압의 소량의 탄화수소가스를 열처리로속으로 유입하는 단계로 구성되는 것을 특징으로 하는 금속의 침탄법.
  2. 제1항에 있어서, 다른 레벨로 변화하는 카본포텐셜의 이동시간과 기울기는 탄화수소가스와 산화가스의 양을 증감시킴으로써 제어되는 것을 특징으로 하는 금속의 침탄법.
  3. 제1항에 있어서, 로내의 분위기의 카본포텐셜은 침탄법이 실시될 때 처리할 작업물에 침착되는 탄화물이 커지는 것을 방지하기 위한 고레벨엣 소정시간 유지되며, 침탄법이 실시될 때 침착된 탄화물의 용해처리를 실시하기 위해 카본포텐셜이 저레벨에서 소정시간 유지되는 것을 특징으로 하는 금속의 침탄법.
  4. 제1항 내지 제3항중의 한 항에 있어서, 가스공급관(17)에 그을음이 생기는 것을 방지하기 위하여 중간압력의 산화가스가 가스공급관(17)속으로 유입되는 것을 특징으로 하는 금속의 침탄법.
  5. 제1항 내지 제4항중의 한 항에 있어서, 로내의 분위기성분이 교란되는 것을 방지하기 위하여 저압의 탄화수소가스와 중간압의 산화가스가 예열구역의 변환관속으로 공급되는 것을 특징으로 하는 금속의 침탄법.
  6. 제1항 내지 제5항중의 한 항에 있어서, 각각의 상기 가스공급관(17)으로부터 그을음을 제거하고 로내의 CO의 부족으 방지하기 위하여 중간압의 CO2가 동시게 모든 가스공급관(17)속으로 주입되는 것을 특징으로 하는 금속의 침탄법.
KR1019960075271A 1995-12-28 1996-12-28 금속침탄방법 KR100432956B1 (ko)

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
JP352,428/95 1995-12-28

Publications (2)

Publication Number Publication Date
KR970043264A true KR970043264A (ko) 1997-07-26
KR100432956B1 KR100432956B1 (ko) 2004-11-03

Family

ID=18424016

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960075271A KR100432956B1 (ko) 1995-12-28 1996-12-28 금속침탄방법

Country Status (6)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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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
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
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
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

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Also Published As

Publication number Publication date
EP0781858A1 (en) 1997-07-02
DE69608652T2 (de) 2001-02-01
EP0781858B2 (en) 2004-12-08
ES2148693T3 (es) 2000-10-16
US5795406A (en) 1998-08-18
DE69608652D1 (de) 2000-07-06
JP3460075B2 (ja) 2003-10-27
DE69608652T3 (de) 2005-07-28
KR100432956B1 (ko) 2004-11-03
ES2148693T5 (es) 2005-07-01
JPH09184057A (ja) 1997-07-15
EP0781858B1 (en) 2000-05-31

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