DE69224596T2 - Method and device for the automatic control of continuous furnaces heated with jet pipes - Google Patents

Method and device for the automatic control of continuous furnaces heated with jet pipes

Info

Publication number
DE69224596T2
DE69224596T2 DE69224596T DE69224596T DE69224596T2 DE 69224596 T2 DE69224596 T2 DE 69224596T2 DE 69224596 T DE69224596 T DE 69224596T DE 69224596 T DE69224596 T DE 69224596T DE 69224596 T2 DE69224596 T2 DE 69224596T2
Authority
DE
Germany
Prior art keywords
oven
temperature
strip
zones
speed
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.)
Expired - Fee Related
Application number
DE69224596T
Other languages
German (de)
Other versions
DE69224596D1 (en
Inventor
Frederic Parant
Frederic Racle
Jean-Michel Walter
Jean Drykoningen
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Publication of DE69224596D1 publication Critical patent/DE69224596D1/en
Application granted granted Critical
Publication of DE69224596T2 publication Critical patent/DE69224596T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C21D9/56—Continuous furnaces for strip 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
    • C21D11/00—Process control or regulation for heat treatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Looms (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

Process for automatic control of a continuous annealing oven with radiation via radiant tubes of the type comprising a number of successive zones for heating to distinct temperatures, employed especially for continuously performing different heat treatments of strips connected to each other and requiring specific annealing operations, in which the position of the strip ends, the speed of forward travel of the strip and the temperature in each of the zones of the oven are determined, characterised in that the change in the temperature of each of the zones of the oven and in the speed of forward travel in the course of time are determined from the measured results and from the characteristics of the strip which has just entered the oven and of the one following it, so that the temperature in the different zones of the oven is always higher than or equal to the values necessary for the heat treatment and so that the speed of the strip is adapted to the necessary period of treatment in each zone as a function of the temperature of the said zone. <IMAGE>
DE69224596T 1991-11-28 1992-11-20 Method and device for the automatic control of continuous furnaces heated with jet pipes Expired - Fee Related DE69224596T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9114724A FR2684436B1 (en) 1991-11-28 1991-11-28 METHOD AND DEVICE FOR AUTOMATICALLY OPERATING A CONTINUOUS ANNUIT OVEN.

Publications (2)

Publication Number Publication Date
DE69224596D1 DE69224596D1 (en) 1998-04-09
DE69224596T2 true DE69224596T2 (en) 1998-11-12

Family

ID=9419447

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224596T Expired - Fee Related DE69224596T2 (en) 1991-11-28 1992-11-20 Method and device for the automatic control of continuous furnaces heated with jet pipes

Country Status (5)

Country Link
EP (1) EP0545768B1 (en)
AT (1) ATE163685T1 (en)
DE (1) DE69224596T2 (en)
ES (1) ES2114923T3 (en)
FR (1) FR2684436B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2820148B1 (en) 2001-01-31 2003-10-31 Stein Heurtey IMPROVEMENTS IN METHODS FOR HEATING STEEL STRIPS IN VERTICAL OVENS
DE10337502B4 (en) * 2003-08-14 2006-03-30 Kramer, Carl, Prof. Dr.-Ing. Method for operating a continuous heat treatment plant for webs and belts with predominantly convective heat transfer
CN115074496B (en) * 2022-05-19 2023-08-15 首钢京唐钢铁联合有限责任公司 Control method and device of continuous annealing furnace, medium and electronic equipment
CN116732307A (en) * 2023-06-15 2023-09-12 宁波固远管件有限公司 Pipe fitting annealing method, system, storage medium and intelligent terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2326135A1 (en) * 1973-05-23 1974-12-12 Krupp Gmbh Travelling sheet metal oven - controlled by thickness-dependent potentiometer in series with resistance thermometer
JPS5924166B2 (en) * 1977-10-20 1984-06-07 新日本製鐵株式会社 Method for controlling plate temperature during continuous heating of strip
US4316717A (en) * 1980-10-27 1982-02-23 Midland-Ross Corporation Method of controlling strip temperatures
DE3583212D1 (en) * 1984-11-08 1991-07-18 Mitsubishi Heavy Ind Ltd METHOD AND DEVICE FOR HEATING A METAL STRIP IN A CONTINUOUS FURNACE.

Also Published As

Publication number Publication date
FR2684436A1 (en) 1993-06-04
FR2684436B1 (en) 1998-02-06
DE69224596D1 (en) 1998-04-09
ATE163685T1 (en) 1998-03-15
EP0545768A1 (en) 1993-06-09
EP0545768B1 (en) 1998-03-04
ES2114923T3 (en) 1998-06-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee