KR970070213A - 열처리 대기를 형성하는 장치 및 방법 - Google Patents

열처리 대기를 형성하는 장치 및 방법 Download PDF

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Publication number
KR970070213A
KR970070213A KR1019970014384A KR19970014384A KR970070213A KR 970070213 A KR970070213 A KR 970070213A KR 1019970014384 A KR1019970014384 A KR 1019970014384A KR 19970014384 A KR19970014384 A KR 19970014384A KR 970070213 A KR970070213 A KR 970070213A
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KR
South Korea
Prior art keywords
heat treatment
treatment atmosphere
furnace
gas
nitrogen
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KR1019970014384A
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English (en)
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KR100247096B1 (ko
Inventor
하브하얀 에스 네이야
죤 제이 쥬니어 드와이어
에드워드 챵
Original Assignee
카셋트 래리 알
더 비오씨 그룹 인코포레이티드
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Publication of KR970070213A publication Critical patent/KR970070213A/ko
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Publication of KR100247096B1 publication Critical patent/KR100247096B1/ko

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    • 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
    • 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
    • C21D1/763—Adjusting the composition of the atmosphere using a catalyst
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Furnace Details (AREA)
  • Catalysts (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

본 발명은 소량의 산소를 함유하는 질소가 풍부한 기체를 예열하는, 열처리 대기의 형성 방법에 관한 것이다. 탄화수소 기체와 같은 산소-반응성 기체를 질소가 풍부한 기체와 혼합하고, 이 혼합물을 그 보다 높은 온도에서 그을음이 거의 일어나지 않는 온도의 노(furnace)의 외부에서 반응시킨다. 그 다음, 생성된 열처리 대기를 노로 보내어 열처리 공정을 수행한다.

Description

열처기 대기를 형성하는 장치 및 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따라 열처리 대기를 형성하기 적합한 장치를 개략적으로 도시한 것이다. 제2도는 제1도의 장치에 사용되는 가열 챔버의 단면도이다.

Claims (3)

  1. a) 질소가 풍부한 기체로 이루어진 기체를 예열 온도로 예열하는 단계; b) 예열된 질소가 풍부한 기체에 산소-반응성 기체를 첨가하여 그을음이 거의 일어나지 않는 반응 온도에서 반응 혼합물을 형성하는 단계; c) 상기 반응 온도에서 반응 혼합물을 반응시켜 촉매의 부재하에 열처리 대기를 형성하는 단계; d) 열처리 대기를 노(furnace)에 전달하는 단계; 및 e) 상기 노에서 상기 열처리 대기의 존재하에 금속을 열처리하는 단계를 포함하는, 금속의 열처리 방법.
  2. a) 질소가 풍부한 기체로 이루어진 기체를 400℃를 초과하는 예열 온도로 예열하는 단계; b) 예열된 질소가 풍부한 기체에 산소-반응성 기체를 첨가하여 반응 온도에서 반응 혼합물을 형성하는 단계; c) 상기 반응온도에서 반응 혼합물을 반응시켜 열처리 대기를 형성하는 단계; d) 열처리 대기를 노에 전달하는 단계; 및 e) 상기 노에서 상기 열처리 대기의 존재하에 금속을 열처리하는 단계를 포함하는, 금속의 열처리 방법.
  3. 제2항에 있어서, 귀금속 촉매 및 비금속 촉매로 이루어진 그룹에서 선택된 촉매의 존재하에 반응 혼합물을 반응시키는 단계를 추가로 포함하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970014384A 1996-04-19 1997-04-18 금속의 열처리방법 KR100247096B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US63508996A 1996-04-19 1996-04-19
US08/635,089 1996-04-19
US8/635,089 1996-04-19

Publications (2)

Publication Number Publication Date
KR970070213A true KR970070213A (ko) 1997-11-07
KR100247096B1 KR100247096B1 (ko) 2000-04-01

Family

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Application Number Title Priority Date Filing Date
KR1019970014384A KR100247096B1 (ko) 1996-04-19 1997-04-18 금속의 열처리방법

Country Status (9)

Country Link
US (1) US5779826A (ko)
EP (1) EP0802263A1 (ko)
KR (1) KR100247096B1 (ko)
CN (1) CN1066776C (ko)
AU (1) AU713784B2 (ko)
CA (1) CA2199099C (ko)
ID (1) ID20173A (ko)
NZ (1) NZ314334A (ko)
ZA (1) ZA971867B (ko)

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US5968457A (en) * 1994-06-06 1999-10-19 Praxair Technology, Inc. Apparatus for producing heat treatment atmospheres
DE69610404T3 (de) * 1996-03-20 2007-07-12 Sol S.P.A. Verfahren und Vorrichtung zur Wärmebehandlung metallischer Werkstücke unter Schutzgas
IT1291205B1 (it) * 1997-03-18 1998-12-29 Rivoira S P A Procedimento per la generazione di un'atmosfera protettiva a basso punto di rugiada ed esente da ossigeno, per l'effettuazione di
DE10051203A1 (de) * 2000-10-16 2002-04-25 Linde Ag Verfahren und Vorrichtung zur Erzeugung eines CO- und H2-haltigen Behandlungsgases für die Wärmebehandlung
US20070107818A1 (en) * 2005-11-16 2007-05-17 Bowe Donald J Deoxygenation of furnaces with hydrogen-containing atmoshperes
KR102535846B1 (ko) * 2015-09-02 2023-05-23 한국재료연구원 반응결합 질화규소 제조장치 및 제조방법

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Also Published As

Publication number Publication date
NZ314334A (en) 1997-09-22
ID20173A (id) 1998-10-22
KR100247096B1 (ko) 2000-04-01
CN1167160A (zh) 1997-12-10
US5779826A (en) 1998-07-14
CN1066776C (zh) 2001-06-06
EP0802263A1 (en) 1997-10-22
CA2199099C (en) 2000-12-19
AU713784B2 (en) 1999-12-09
AU1890897A (en) 1997-10-23
CA2199099A1 (en) 1997-10-19
ZA971867B (en) 1997-09-09

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