JPS5677321A - Energy saving type atmosphere furnace for metal heat treatment - Google Patents

Energy saving type atmosphere furnace for metal heat treatment

Info

Publication number
JPS5677321A
JPS5677321A JP15289779A JP15289779A JPS5677321A JP S5677321 A JPS5677321 A JP S5677321A JP 15289779 A JP15289779 A JP 15289779A JP 15289779 A JP15289779 A JP 15289779A JP S5677321 A JPS5677321 A JP S5677321A
Authority
JP
Japan
Prior art keywords
furnace
atmosphere
gas
heat treatment
metal heat
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.)
Pending
Application number
JP15289779A
Other languages
Japanese (ja)
Inventor
Susumu Takahashi
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.)
Kanto Yakin Kogyo Co Ltd
Original Assignee
Kanto Yakin Kogyo 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
Application filed by Kanto Yakin Kogyo Co Ltd filed Critical Kanto Yakin Kogyo Co Ltd
Priority to JP15289779A priority Critical patent/JPS5677321A/en
Publication of JPS5677321A publication Critical patent/JPS5677321A/en
Pending 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

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)
  • Furnace Details (AREA)

Abstract

PURPOSE:To decrease the raw material gas consumption of a metal heat treatment atmosphere furnace by feeding the atmosphere exhaust gas which is being exhausted from the furnace again into a converting furnace which produces atmosphere gas. CONSTITUTION:An atmosphere gas for accomplishment of nonoxidative heating, reducing treatment, carburizing treatment, etc. is fed through a feed port 15 into a metal heat treatment atmosphere furnace consisting of a treating chamber 1 and a cooling chamber 2. The composition of the atmosphere gas is changed by sending hydrocarbon gas such as propane and air to a converting furnace 12 by means of a pump 6 and controlling a propane flowmeter 8 and an air flowmeter 17 to meet the purpose. The composition changes in the furnace 1 and chamber 2. The exhaust gas of increased harmful components such as N2O, CO2 O2 is gathered at capturing ports 3, 3' and part thereof is cooled in a cooler 4 and is then flowed through a a flowmeter 5. The oxygen content thereof is measured with an oxygen content measuring gauge 18, and the proper amount of the exhaust gas is circulated to the furnace 12 based on the results thereof, whereby the consumption of the propane which is a raw material is decreased.
JP15289779A 1979-11-28 1979-11-28 Energy saving type atmosphere furnace for metal heat treatment Pending JPS5677321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15289779A JPS5677321A (en) 1979-11-28 1979-11-28 Energy saving type atmosphere furnace for metal heat treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15289779A JPS5677321A (en) 1979-11-28 1979-11-28 Energy saving type atmosphere furnace for metal heat treatment

Publications (1)

Publication Number Publication Date
JPS5677321A true JPS5677321A (en) 1981-06-25

Family

ID=15550514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15289779A Pending JPS5677321A (en) 1979-11-28 1979-11-28 Energy saving type atmosphere furnace for metal heat treatment

Country Status (1)

Country Link
JP (1) JPS5677321A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056059A (en) * 1983-09-06 1985-04-01 Koyo Rindobaagu Kk Method for converting and reutilizing waste gas from carburization heat treating furnace
WO1997001402A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Method and plant for the manufacture of a strip of formable steel
WO1997001403A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Method and plant for the manufacture of a thin hot-rolled steel strip
WO1997001401A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Plant for the manufacture of steel strip
JPH11131209A (en) * 1997-10-29 1999-05-18 Daihatsu Motor Co Ltd Gas carburization method
JP2000001764A (en) * 1998-06-16 2000-01-07 Iwatani Internatl Corp Carburization method in continuous carburization furnace
JP2008267778A (en) * 2007-03-23 2008-11-06 Dowa Thermotech Kk Heat treatment system
JP2010001567A (en) * 2008-06-20 2010-01-07 Ipsen Internatl Gmbh Method and apparatus for heat-treating metallic material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056059A (en) * 1983-09-06 1985-04-01 Koyo Rindobaagu Kk Method for converting and reutilizing waste gas from carburization heat treating furnace
WO1997001402A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Method and plant for the manufacture of a strip of formable steel
WO1997001403A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Method and plant for the manufacture of a thin hot-rolled steel strip
WO1997001401A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Plant for the manufacture of steel strip
US6053996A (en) * 1995-06-29 2000-04-25 Hoogovens Staal Bv Method for the manufacture of a strip of formable steel
JPH11131209A (en) * 1997-10-29 1999-05-18 Daihatsu Motor Co Ltd Gas carburization method
JP2000001764A (en) * 1998-06-16 2000-01-07 Iwatani Internatl Corp Carburization method in continuous carburization furnace
JP2008267778A (en) * 2007-03-23 2008-11-06 Dowa Thermotech Kk Heat treatment system
JP2010001567A (en) * 2008-06-20 2010-01-07 Ipsen Internatl Gmbh Method and apparatus for heat-treating metallic material

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