JPS569331A - Setting of correction for temperature of multizone type continuous heating furnace - Google Patents

Setting of correction for temperature of multizone type continuous heating furnace

Info

Publication number
JPS569331A
JPS569331A JP8331779A JP8331779A JPS569331A JP S569331 A JPS569331 A JP S569331A JP 8331779 A JP8331779 A JP 8331779A JP 8331779 A JP8331779 A JP 8331779A JP S569331 A JPS569331 A JP S569331A
Authority
JP
Japan
Prior art keywords
zone
steel strips
temperatures
corrections
heated
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
JP8331779A
Other languages
Japanese (ja)
Other versions
JPS5941489B2 (en
Inventor
Yoshihiro Yamaguchi
Ichiro Kokubo
Tokuo Mizuta
Ryuichi Ishida
Akinori Otomo
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP54083317A priority Critical patent/JPS5941489B2/en
Publication of JPS569331A publication Critical patent/JPS569331A/en
Publication of JPS5941489B2 publication Critical patent/JPS5941489B2/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
    • C21D11/00—Process control or regulation for heat treatments

Abstract

PURPOSE:To reduce the fuel basic unit of a furnace and stabilize the productivity and quality of steel strips to be heated by obtaining the temperature and residual staying time of steel strips in preheating, heating, and soaking zones of a heating furnace and then correcting properly the temperature of each zone according to the obtained data. CONSTITUTION:In a multizone type continuous heating furnace consisting of a preheating zone, a heating zone, and a soaking zone, steel strips of different shapes and sizes are heated to respective target temperatures. The temperatures of steel strips in each zone are obtained from the temperatures of the three zones, the characteristics of the furnace, and the thermal characteristics and heat hysteresis of steel strips to be heated. Furthermore, the residual staying times of steel strips in each zone are obtained from the positions of steel strips, the positions of steel strips going ahead in the extracting direction, and the extracting pitch of steel strips. Then, the corrections DELTATli for the temperatures of each zone for each steel strip are obtained to determine the corrections DELTATl for the temperatures of each zone. In this case, using the corrections DELTATli for the temperatures of each zone for each steel strip and also the weight coefficient Wli determined according to the magnitudes of DELTATli and DELTATl, the corrections DELTATl for the temperatures of each zone are determined by the equation [I], where n is the number of steel strips to be heated in the zone l.
JP54083317A 1979-06-29 1979-06-29 How to set the furnace temperature correction amount for a multi-zone continuous heating furnace Expired JPS5941489B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54083317A JPS5941489B2 (en) 1979-06-29 1979-06-29 How to set the furnace temperature correction amount for a multi-zone continuous heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54083317A JPS5941489B2 (en) 1979-06-29 1979-06-29 How to set the furnace temperature correction amount for a multi-zone continuous heating furnace

Publications (2)

Publication Number Publication Date
JPS569331A true JPS569331A (en) 1981-01-30
JPS5941489B2 JPS5941489B2 (en) 1984-10-08

Family

ID=13799039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54083317A Expired JPS5941489B2 (en) 1979-06-29 1979-06-29 How to set the furnace temperature correction amount for a multi-zone continuous heating furnace

Country Status (1)

Country Link
JP (1) JPS5941489B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57126919A (en) * 1981-01-30 1982-08-06 Kawasaki Steel Corp Controlling method for continuous steel-heating purnace
JPS57137424A (en) * 1981-02-20 1982-08-25 Kawasaki Steel Corp Control method for continuous heating furnace

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130526A (en) * 1974-09-07 1976-03-15 Nippon Steel Corp ATSUENMAMAKOJINSEIKOZAINOSEIZOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130526A (en) * 1974-09-07 1976-03-15 Nippon Steel Corp ATSUENMAMAKOJINSEIKOZAINOSEIZOHO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57126919A (en) * 1981-01-30 1982-08-06 Kawasaki Steel Corp Controlling method for continuous steel-heating purnace
JPS57137424A (en) * 1981-02-20 1982-08-25 Kawasaki Steel Corp Control method for continuous heating furnace

Also Published As

Publication number Publication date
JPS5941489B2 (en) 1984-10-08

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