JPS5534615A - Heating method for steel material in multi-zone heating furnace - Google Patents

Heating method for steel material in multi-zone heating furnace

Info

Publication number
JPS5534615A
JPS5534615A JP10520678A JP10520678A JPS5534615A JP S5534615 A JPS5534615 A JP S5534615A JP 10520678 A JP10520678 A JP 10520678A JP 10520678 A JP10520678 A JP 10520678A JP S5534615 A JPS5534615 A JP S5534615A
Authority
JP
Japan
Prior art keywords
burners
zone
temp
heating
furnace
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
JP10520678A
Other languages
Japanese (ja)
Other versions
JPS5823444B2 (en
Inventor
Junichi Yamaguchi
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP53105206A priority Critical patent/JPS5823444B2/en
Publication of JPS5534615A publication Critical patent/JPS5534615A/en
Publication of JPS5823444B2 publication Critical patent/JPS5823444B2/en
Expired 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
    • C21D1/34—Methods of heating
    • C21D1/52—Methods of heating with flames

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)
  • Control Of Heat Treatment Processes (AREA)

Abstract

PURPOSE:To reduce fuel consumption and to prevent the equipment from being damaged in heating steel material to a prescribed temp. in a multizone heating furnace, by igniting burners in the heating zone and soaking zone at the same time, and by extinguishing the burners with the damper of a flue closed so as to lowers the temp. of the furnace slowly. CONSTITUTION:A steel material 8 is heated to a prescribed temp. in a multizone heating furnaces composed of a preheating zone PM, a heating zone H, and a soaking zone S, by igniting simultaneously the upper burners 4, 3 and the lower burners 7a-7c, 6a-6d of the heating zone H and the soaking zone S. Ignition of the upper burners 2 and the lower burners 5a-5c of the preheating zone PH after a predetermined time causes to raise the temp. to a prescribed temp. of 1250 deg.C in a short time. In extinguishing the burners, only the upper burners 4 of the soaking zone and upper burners 3 of the heating zone H are continued to burn until a prescribed time after the close of the flue damper 14 in order to lower the furnace temp. slowly. This method prevents the development of defects such as skid due to the rapid fall of furnace temp., and decresses remarkably the fuel consumption.
JP53105206A 1978-08-29 1978-08-29 Method of heating steel materials in a multi-zone heating furnace Expired JPS5823444B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53105206A JPS5823444B2 (en) 1978-08-29 1978-08-29 Method of heating steel materials in a multi-zone heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53105206A JPS5823444B2 (en) 1978-08-29 1978-08-29 Method of heating steel materials in a multi-zone heating furnace

Publications (2)

Publication Number Publication Date
JPS5534615A true JPS5534615A (en) 1980-03-11
JPS5823444B2 JPS5823444B2 (en) 1983-05-16

Family

ID=14401185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53105206A Expired JPS5823444B2 (en) 1978-08-29 1978-08-29 Method of heating steel materials in a multi-zone heating furnace

Country Status (1)

Country Link
JP (1) JPS5823444B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113145745A (en) * 2015-02-05 2021-07-23 本特勒尔汽车技术有限公司 Double-station blanking thermoforming tool and method for producing thermoformed and press-quenched motor vehicle parts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015713A (en) * 1973-06-15 1975-02-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015713A (en) * 1973-06-15 1975-02-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113145745A (en) * 2015-02-05 2021-07-23 本特勒尔汽车技术有限公司 Double-station blanking thermoforming tool and method for producing thermoformed and press-quenched motor vehicle parts

Also Published As

Publication number Publication date
JPS5823444B2 (en) 1983-05-16

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