JPS57108221A - Temperature controller for slab of slab heating furnace - Google Patents

Temperature controller for slab of slab heating furnace

Info

Publication number
JPS57108221A
JPS57108221A JP18466380A JP18466380A JPS57108221A JP S57108221 A JPS57108221 A JP S57108221A JP 18466380 A JP18466380 A JP 18466380A JP 18466380 A JP18466380 A JP 18466380A JP S57108221 A JPS57108221 A JP S57108221A
Authority
JP
Japan
Prior art keywords
slab
temp
furnace
phi
heating
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
JP18466380A
Other languages
Japanese (ja)
Other versions
JPH0129855B2 (en
Inventor
Masaru Tajiri
Yoshifumi Nakano
Takenobu Washida
Fumio Kojima
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.)
Toshiba Corp
Kobe Steel Ltd
Original Assignee
Toshiba Corp
Kobe Steel Ltd
Tokyo Shibaura Electric Co 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 Toshiba Corp, Kobe Steel Ltd, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP18466380A priority Critical patent/JPS57108221A/en
Publication of JPS57108221A publication Critical patent/JPS57108221A/en
Publication of JPH0129855B2 publication Critical patent/JPH0129855B2/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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets

Abstract

PURPOSE:To control the temp. of a slab in the outlet of a heating furnace to a target temp. by controlling the furnace temp. with the difference between the temp. of the slab by the calculation from the temp. of the heating furnace and the residence time of the slab in the furnace and the actually measured temp. at the stage of heating the slab in the heating furnace. CONSTITUTION:While a slab 2 is moved in an arrow direction in a heating furnace 1, it is heated. The temps. in the furnace are measured with thermocouples 3, and is inputted to a slab temp. calculator 4; at the same time, the heating target temp. theta (tEx) of the slab and an overall heat transfer coefft. phi are applied to the device 4, by which the time signal is obtained from the time elements incorporated therein. The slab surface temp. is detected with a radiation thermometer 5 provided to the wall of the furnace 1 and the detected value theta (tO) thereof is applied to a phi corrector 6. The slab temp. signal theta (tx) by the calculation from the device 4 is applied to the corrector 6, by which the coefft. phi is corrected. The corrected phi is utilized for controlling the elevation of the temp. of the furnace 1, whereby the slab 2 is controlled to the target temp. at the outlet. This slab is extracted from the furnace.
JP18466380A 1980-12-25 1980-12-25 Temperature controller for slab of slab heating furnace Granted JPS57108221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18466380A JPS57108221A (en) 1980-12-25 1980-12-25 Temperature controller for slab of slab heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18466380A JPS57108221A (en) 1980-12-25 1980-12-25 Temperature controller for slab of slab heating furnace

Publications (2)

Publication Number Publication Date
JPS57108221A true JPS57108221A (en) 1982-07-06
JPH0129855B2 JPH0129855B2 (en) 1989-06-14

Family

ID=16157168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18466380A Granted JPS57108221A (en) 1980-12-25 1980-12-25 Temperature controller for slab of slab heating furnace

Country Status (1)

Country Link
JP (1) JPS57108221A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003329374A (en) * 2002-05-10 2003-11-19 Ishino Seisakusho:Kk Baking temperature control system of baking object

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5151236B2 (en) * 2007-04-27 2013-02-27 新日鐵住金株式会社 Temperature control system, heating furnace, temperature control method, and computer program

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52117215A (en) * 1976-03-29 1977-10-01 Sumitomo Metal Ind Ltd Control of continuous heat treating furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52117215A (en) * 1976-03-29 1977-10-01 Sumitomo Metal Ind Ltd Control of continuous heat treating furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003329374A (en) * 2002-05-10 2003-11-19 Ishino Seisakusho:Kk Baking temperature control system of baking object

Also Published As

Publication number Publication date
JPH0129855B2 (en) 1989-06-14

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