JPH0217605B2 - - Google Patents

Info

Publication number
JPH0217605B2
JPH0217605B2 JP61080283A JP8028386A JPH0217605B2 JP H0217605 B2 JPH0217605 B2 JP H0217605B2 JP 61080283 A JP61080283 A JP 61080283A JP 8028386 A JP8028386 A JP 8028386A JP H0217605 B2 JPH0217605 B2 JP H0217605B2
Authority
JP
Japan
Prior art keywords
furnace
atmosphere
carbon
dimethyl ether
nitrogen
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
JP61080283A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61276916A (ja
Inventor
Eichi Shei Robaato
Esu Banosu Tomasu
Aaru Baagaa Kerii
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 JPS61276916A publication Critical patent/JPS61276916A/ja
Publication of JPH0217605B2 publication Critical patent/JPH0217605B2/ja
Granted 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
    • 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)
  • Heat Treatment Of Articles (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
JP61080283A 1985-04-09 1986-04-09 鉄金属を焼なましおよび／または焼入れするための保護雰囲気方法 Granted JPS61276916A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/721,335 US4632707A (en) 1985-04-09 1985-04-09 Protective atmosphere process for annealing and/or hardening ferrous metals
US721335 1985-04-09

Publications (2)

Publication Number Publication Date
JPS61276916A JPS61276916A (ja) 1986-12-06
JPH0217605B2 true JPH0217605B2 (en, 2012) 1990-04-23

Family

ID=24897559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61080283A Granted JPS61276916A (ja) 1985-04-09 1986-04-09 鉄金属を焼なましおよび／または焼入れするための保護雰囲気方法

Country Status (4)

Country Link
US (1) US4632707A (en, 2012)
JP (1) JPS61276916A (en, 2012)
KR (1) KR930003595B1 (en, 2012)
CA (1) CA1268690C (en, 2012)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989840A (en) * 1989-11-08 1991-02-05 Union Carbide Canada Limited Controlling high humidity atmospheres in furnace main body
US5168200A (en) * 1989-12-18 1992-12-01 Payne Kenneth R Automatic powered flowmeter valves and control thereof
KR100474414B1 (ko) * 2001-11-27 2005-03-08 조우석 고온에서 불활성의 중성가스 분위기에 의한 광휘열처리법
JP4823670B2 (ja) * 2005-12-13 2011-11-24 大陽日酸株式会社 浸炭用雰囲気ガス発生方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1817407A (en) * 1927-07-19 1931-08-04 Carbide & Carbon Chem Corp Process for case carburizing and heat treating metals
US2056175A (en) * 1933-10-31 1936-10-06 Leeds & Northrup Co Method of heat treatment in carbonaceous atmospheres
US2161162A (en) * 1938-01-06 1939-06-06 Leeds & Northrup Co Method of carburizing
US2329896A (en) * 1941-01-28 1943-09-21 Leeds & Northrup Co Method of and compound for carburizing
US2673821A (en) * 1950-11-18 1954-03-30 Midwest Research Inst Heat treatment of steel in a protective atmosphere
NL126085C (en, 2012) * 1960-06-17
US4306918A (en) * 1980-04-22 1981-12-22 Air Products And Chemicals, Inc. Process for carburizing ferrous metals
DE3038078A1 (de) * 1980-10-08 1982-05-06 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtung zum aufkohlen metallischer werkstuecke
US4415379A (en) * 1981-09-15 1983-11-15 The Boc Group, Inc. Heat treatment processes

Also Published As

Publication number Publication date
CA1268690A (en) 1990-05-08
JPS61276916A (ja) 1986-12-06
US4632707A (en) 1986-12-30
KR930003595B1 (ko) 1993-05-08
CA1268690C (en) 1990-05-08
KR860008292A (ko) 1986-11-14

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