JPS55148721A - Metal heat treatment furnace - Google Patents

Metal heat treatment furnace

Info

Publication number
JPS55148721A
JPS55148721A JP5504879A JP5504879A JPS55148721A JP S55148721 A JPS55148721 A JP S55148721A JP 5504879 A JP5504879 A JP 5504879A JP 5504879 A JP5504879 A JP 5504879A JP S55148721 A JPS55148721 A JP S55148721A
Authority
JP
Japan
Prior art keywords
heat treatment
furnace
heat
exhaust
indirect
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
JP5504879A
Other languages
Japanese (ja)
Inventor
Takamasa Sekiguchi
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.)
Mitsubishi Light Metal Industries Ltd
Original Assignee
Mitsubishi Light Metal Industries 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 Mitsubishi Light Metal Industries Ltd filed Critical Mitsubishi Light Metal Industries Ltd
Priority to JP5504879A priority Critical patent/JPS55148721A/en
Publication of JPS55148721A publication Critical patent/JPS55148721A/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
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof

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)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

PURPOSE:To achieve higher thermal efficiency by disposing a gaseous material circulating means between a heat feed chamber provided with an indirect heater and a heat treatment chamber, a partial circulating means for combustion exhaust gas of the indirect heater, and in-furnace gaseous material exhaust means, etc. in the metal heat treatment furnace. CONSTITUTION:The metal heat treatment furnace 1 which is divided to a heat feed chamber 2 provided with an indirect heater 5 provided with a burner 6 at one and commucating with a chimney 8 at the other end and a heat treatment chamber 3 for a metal body 4 by means of a partition plate 14 is so constituted as to be operated, in the case of not requiring indirect heating of the metal body 4, by opening dampers 11, 13 and closing 12 to circulate combustion gas between the heat feed chamber 2 and heat treatment chamber 3 by way of a pipe 9 and fan 7 and exhaust part thereof through an exhaust pipe 10 to increase the temperature of the gaseous material and enhance the heat transfer efficiency to the metal body 4 and, in the case of requiring indirect heating, by closing dampers 11, 13 and opening 12 in the same manner as in conventional methods. It is equally well to circulate part of the combustion gas from the indirect heater 5 into the furnace 1.
JP5504879A 1979-05-04 1979-05-04 Metal heat treatment furnace Pending JPS55148721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5504879A JPS55148721A (en) 1979-05-04 1979-05-04 Metal heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5504879A JPS55148721A (en) 1979-05-04 1979-05-04 Metal heat treatment furnace

Publications (1)

Publication Number Publication Date
JPS55148721A true JPS55148721A (en) 1980-11-19

Family

ID=12987777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5504879A Pending JPS55148721A (en) 1979-05-04 1979-05-04 Metal heat treatment furnace

Country Status (1)

Country Link
JP (1) JPS55148721A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106636577A (en) * 2017-01-10 2017-05-10 菏泽锅炉厂有限公司 Annealing furnace for heating by burning liquefied petroleum gas

Citations (1)

* 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

Patent Citations (1)

* 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106636577A (en) * 2017-01-10 2017-05-10 菏泽锅炉厂有限公司 Annealing furnace for heating by burning liquefied petroleum gas

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