JPS55122819A - Heat treatment furnace - Google Patents

Heat treatment furnace

Info

Publication number
JPS55122819A
JPS55122819A JP3014779A JP3014779A JPS55122819A JP S55122819 A JPS55122819 A JP S55122819A JP 3014779 A JP3014779 A JP 3014779A JP 3014779 A JP3014779 A JP 3014779A JP S55122819 A JPS55122819 A JP S55122819A
Authority
JP
Japan
Prior art keywords
heat
gas
furnace
heat treatment
heating zone
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.)
Granted
Application number
JP3014779A
Other languages
Japanese (ja)
Other versions
JPS5827323B2 (en
Inventor
Yasushi Ouchi
Akira Shoji
Ryozo Tomosaki
Susumu Takahashi
Hitoshi Yoshinaga
Akio Takeuchi
Original Assignee
Hitachi Ltd
Kanto Yakin Kogyo Kk
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 Hitachi Ltd, Kanto Yakin Kogyo Kk filed Critical Hitachi Ltd
Priority to JP54030147A priority Critical patent/JPS5827323B2/ja
Publication of JPS55122819A publication Critical patent/JPS55122819A/en
Publication of JPS5827323B2 publication Critical patent/JPS5827323B2/ja
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76Adjusting the composition of the atmosphere
    • C21D1/763Adjusting the composition of the atmosphere using a catalyst

Abstract

PURPOSE:To enhance the thermal efficiency of a heat generation type gas producing unit by placing the unit at the temp. rising section of the heating zone of a nonoxidation heat treatment furnace so that it can be heat exchanged for a means of conveying a substance to be treated. CONSTITUTION:Heat generation type unit 4 for producing a gas used in a heat treatment furnace is placed at the temp. rising section of heating zone 11 of the furnace, and combustion chamber 56 packed with gas conversion catalyst 55 is heat insulated with heat shielding plate 57. When heat treatment operation is carried out in the furnace, a gas mixed with combustion air is fed to chamber 56 through piping 53, burned with burner 54, and acceleratedly converted with catalyst 55. This hot converted gas radiates its heat in radiation tube 581, etc. to heat substance 72 to be treated. The gas leaving tube 581 is cooled and dehydrated with heat exchanger 41 and further cooled and dehydrated with refrigerator 22. The resulting gas is then fed to heating zone 11 and cooling zones 121, 122, where it is used as a gas for nonoxidation treatment.
JP54030147A 1979-03-14 1979-03-14 Expired JPS5827323B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54030147A JPS5827323B2 (en) 1979-03-14 1979-03-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54030147A JPS5827323B2 (en) 1979-03-14 1979-03-14

Publications (2)

Publication Number Publication Date
JPS55122819A true JPS55122819A (en) 1980-09-20
JPS5827323B2 JPS5827323B2 (en) 1983-06-08

Family

ID=12295644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54030147A Expired JPS5827323B2 (en) 1979-03-14 1979-03-14

Country Status (1)

Country Link
JP (1) JPS5827323B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779110A (en) * 1980-11-01 1982-05-18 Daido Steel Co Ltd Operating method for heat treatment device
JPS58113315A (en) * 1981-12-25 1983-07-06 Daido Steel Co Ltd Atmospheric heat treating furnace

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09170091A (en) 1995-12-19 1997-06-30 Kanto Yakin Kogyo Kk Method for removing vapor of oil-component of metal worked article
JP2014074566A (en) * 2012-10-05 2014-04-24 Kanto Yakin Kogyo Co Ltd Heat treat furnace of steel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100915A (en) * 1975-03-04 1976-09-06 Sky Aluminium Yakinamashironi okeru haishutsugasuno ryohoho
JPS51115212A (en) * 1975-04-02 1976-10-09 Daido Steel Co Ltd Apparatus for heat treatment with non-oxidizing atmosphere

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100915A (en) * 1975-03-04 1976-09-06 Sky Aluminium Yakinamashironi okeru haishutsugasuno ryohoho
JPS51115212A (en) * 1975-04-02 1976-10-09 Daido Steel Co Ltd Apparatus for heat treatment with non-oxidizing atmosphere

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779110A (en) * 1980-11-01 1982-05-18 Daido Steel Co Ltd Operating method for heat treatment device
JPS6347770B2 (en) * 1980-11-01 1988-09-26 Daido Steel Co Ltd
JPS58113315A (en) * 1981-12-25 1983-07-06 Daido Steel Co Ltd Atmospheric heat treating furnace

Also Published As

Publication number Publication date
JPS5827323B2 (en) 1983-06-08

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