JPS57104630A - Operating method for continuous heat treatment furnace for metallic strip coil - Google Patents

Operating method for continuous heat treatment furnace for metallic strip coil

Info

Publication number
JPS57104630A
JPS57104630A JP18002180A JP18002180A JPS57104630A JP S57104630 A JPS57104630 A JP S57104630A JP 18002180 A JP18002180 A JP 18002180A JP 18002180 A JP18002180 A JP 18002180A JP S57104630 A JPS57104630 A JP S57104630A
Authority
JP
Japan
Prior art keywords
muffles
gases
leaking
combustion
heat treatment
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
JP18002180A
Other languages
Japanese (ja)
Other versions
JPS6114221B2 (en
Inventor
Kimio Maeyama
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP18002180A priority Critical patent/JPS57104630A/en
Priority to US06/331,838 priority patent/US4406618A/en
Priority to FR8123743A priority patent/FR2496697B1/en
Priority to DE3150343A priority patent/DE3150343C2/en
Publication of JPS57104630A publication Critical patent/JPS57104630A/en
Publication of JPS6114221B2 publication Critical patent/JPS6114221B2/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • 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

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 Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To make the effective elimination of the harmful effect caused in a continuous heat treatment furnace making combination use of direct heating and indirect heating and the reduction of heat treatment costs possible by treating the leaking combustible gases from muffles adequately and easily in said furnace. CONSTITUTION:In a burner direct firing type heating zone, in the first half of the heating zone of a high temp. region (b), liquid fuel is burned by the excessive supply of combustion air to burners 12', whereby strip coils 11 under the protection of muffles 9 are heated. On the other hand, combustible gases such as H2 leaking through the skirt seals 10 of the muffles 9 are burned by the excess air and are made non-polluting. The waste gases of combustion are collectively released through a release port 17 then through a stack 19 by means of a suction fan 18. In the electric heating zones in the second half of the heating zone and a soaking zone, the air of the amt. enough for combustion of the combustible gases leaking from the muffles 9 is introduced through lead-in ports 16, so that the gases are burned. Next, in a low temp. region (a), the combustible gases leaking from the muffles 9 are released through the stack 19 without burning by introducing air of the amt. at which the gases are maintained below the combustion lower limit value.
JP18002180A 1980-12-19 1980-12-19 Operating method for continuous heat treatment furnace for metallic strip coil Granted JPS57104630A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP18002180A JPS57104630A (en) 1980-12-19 1980-12-19 Operating method for continuous heat treatment furnace for metallic strip coil
US06/331,838 US4406618A (en) 1980-12-19 1981-12-17 Method of operating continuous heat treatment furnace for metal strip coils
FR8123743A FR2496697B1 (en) 1980-12-19 1981-12-18 METHOD FOR OPERATING A CONTROLLED ATMOSPHERE OVEN FOR THE CONTINUOUS HEAT TREATMENT OF STEEL STRIP COILS
DE3150343A DE3150343C2 (en) 1980-12-19 1981-12-18 Method of operating a continuous tunnel annealing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18002180A JPS57104630A (en) 1980-12-19 1980-12-19 Operating method for continuous heat treatment furnace for metallic strip coil

Publications (2)

Publication Number Publication Date
JPS57104630A true JPS57104630A (en) 1982-06-29
JPS6114221B2 JPS6114221B2 (en) 1986-04-17

Family

ID=16076068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18002180A Granted JPS57104630A (en) 1980-12-19 1980-12-19 Operating method for continuous heat treatment furnace for metallic strip coil

Country Status (1)

Country Link
JP (1) JPS57104630A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119311A (en) * 1975-04-12 1976-10-19 Nippon Steel Corp An annular apparatus for heat treatment
JPS5496408A (en) * 1978-01-18 1979-07-30 Kawasaki Steel Co Nonoxidizing atomospheric annealing furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119311A (en) * 1975-04-12 1976-10-19 Nippon Steel Corp An annular apparatus for heat treatment
JPS5496408A (en) * 1978-01-18 1979-07-30 Kawasaki Steel Co Nonoxidizing atomospheric annealing furnace

Also Published As

Publication number Publication date
JPS6114221B2 (en) 1986-04-17

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