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EP0200981A3 - Process for the automatic control of the starting operation of a continuous metal casting machine - Google Patents

Process for the automatic control of the starting operation of a continuous metal casting machine Download PDF

Info

Publication number
EP0200981A3
EP0200981A3 EP86105504A EP86105504A EP0200981A3 EP 0200981 A3 EP0200981 A3 EP 0200981A3 EP 86105504 A EP86105504 A EP 86105504A EP 86105504 A EP86105504 A EP 86105504A EP 0200981 A3 EP0200981 A3 EP 0200981A3
Authority
EP
European Patent Office
Prior art keywords
degree
opening
reaching
outflow
level
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.)
Withdrawn
Application number
EP86105504A
Other languages
German (de)
French (fr)
Other versions
EP0200981A2 (en
Inventor
André Kraus
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.)
Arcelor Luxembourg SA
Original Assignee
Arbed SA
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 Arbed SA filed Critical Arbed SA
Publication of EP0200981A2 publication Critical patent/EP0200981A2/en
Publication of EP0200981A3 publication Critical patent/EP0200981A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
    • B22D11/206—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level by using X-rays or nuclear radiation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Toxicology (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

Spätestens vor dem Ansprechen der Füllstandsmessvor­ richtung wird der Öffnungsgrad des Ausflusses (5) in Nähe des normalen Gieß-Öffnungsgrades gebracht und nach Erhalt eines eindeutigen Signales von der Füllstandsmessvorrich­ tung, oder beim Erreichen einer ersten vorbestimmten Füll­ standshöhe, wird die Abzugsmaschine eingeschaltet und die Abzugsgeschwindigkeit zur Bestimmung des Öffnungsgrades des Ausflusses hinzugezogen. Hierzu wird die Geschwindig­ keit der Rollen mittels eines Tachometers (18) gemessen, das abgegebene Signal normiert, dann mit dem den normalen Gieß-Öffnungsgrad bestimmenden Signal multipliziert und mit dem so erhaltenen Signal wird der Öffnungsgrad des Ausflus­ ses gesteuert. Nach der Anlaufphase der Abzugsmaschine oder nach Erreichen einer zweiten vorbestimmten Füllstands­ höhe, welche über obiger ersten Füllstandshöhe liegt, wird auf alleinige I-Regelung des Öffnungsgrades des Ausflusses und nach Erreichen einer dritten vorbestimmten Füllstands­ höhe, welche etwa mit der normalen Soll-Füllstandshöhe über­ einstimmt, wird auf eine I-P-Regelung übergegangen. At the latest before the level measurement is triggered direction is the degree of opening of the outflow (5) in the vicinity the normal pouring degree of opening and after receipt a clear signal from the level measuring device tion, or when reaching a first predetermined fill stand height, the fume cupboard is switched on and the Pull-off speed to determine the degree of opening of the discharge. For this the speed becomes speed of the rollers measured using a tachometer (18), the output signal normalized, then with the normal The pouring degree determining the signal multiplied and by The degree of opening of the outflow becomes the signal thus obtained controlled. After the start-up phase of the extraction machine or after reaching a second predetermined fill level height, which is above the first fill level only I regulation of the degree of opening of the outflow and after reaching a third predetermined fill level height, which is about the normal target level agrees, an I-P control is adopted.

EP86105504A 1985-05-07 1986-04-21 Process for the automatic control of the starting operation of a continuous metal casting machine Withdrawn EP0200981A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU85878A LU85878A1 (en) 1985-05-07 1985-05-07 METHOD FOR AUTOMATICALLY CONTROLLING THE START-UP OF A METAL CONTINUOUS CASTING SYSTEM
LU85878 1985-05-07

Publications (2)

Publication Number Publication Date
EP0200981A2 EP0200981A2 (en) 1986-11-12
EP0200981A3 true EP0200981A3 (en) 1988-10-05

Family

ID=19730456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105504A Withdrawn EP0200981A3 (en) 1985-05-07 1986-04-21 Process for the automatic control of the starting operation of a continuous metal casting machine

Country Status (3)

Country Link
US (1) US4774999A (en)
EP (1) EP0200981A3 (en)
LU (1) LU85878A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905328C1 (en) * 1989-02-17 1990-07-19 Mannesmann Ag, 4000 Duesseldorf, De
CH682376A5 (en) * 1990-02-28 1993-09-15 Stopinc Ag A method for automatic casting of a continuous casting plant.
FR2677284B1 (en) * 1991-06-07 1993-08-27 Pechiney Aluminium PROCESS AND APPARATUS FOR AUTOMATIC CASTING OF SEMI-PRODUCTS.
US5298887A (en) * 1991-10-04 1994-03-29 Sentech Corporation Molten metal gauging and control system employing a fixed position capacitance sensor and method therefor
AUPO591697A0 (en) * 1997-03-27 1997-04-24 Bhp Steel (Jla) Pty Limited Casting metal strip
FR2766113B1 (en) * 1997-07-16 1999-09-17 Usinor METHOD FOR STARTING A CONTINUOUS CASTING OF METALS
ITMI20010958A1 (en) * 2001-05-10 2002-11-10 Ori Martin Acciaieria E Ferrer PROCEDURE AND DEVICE FOR THE CONTROL OF THE LEVEL OF THE STEEL IN CONTINUOUS CASTING IN LINGOTTERY
AT512214B1 (en) * 2011-12-05 2015-04-15 Siemens Vai Metals Tech Gmbh PROCESS ENGINEERING MEASURES IN A CONTINUOUS CASTING MACHINE AT THE CASTING STAGE, AT THE CASTING END AND AT THE PRODUCTION OF A TRANSITION PIECE
CN103878334B (en) * 2012-12-21 2016-04-27 宝山钢铁股份有限公司 A kind of plug-in type conticaster automatic casting control method
CA3049465C (en) * 2017-11-15 2021-10-12 Novelis Inc. Metal level overshoot or undershoot mitigation at transition of flow rate demand

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU54473A1 (en) * 1966-09-26 1967-11-14
JPS589757A (en) * 1981-07-09 1983-01-20 Nippon Steel Corp Controlling method for charging of molten steel in continuous casting
DE3421344A1 (en) * 1984-06-08 1985-12-12 Krupp Stahl Ag, 4630 Bochum Method and apparatus for the automatic filling of a continuous casting mould for the initial casting of a strand
GB2172532A (en) * 1985-03-19 1986-09-24 Metacon Ag Method and apparatus for starting a continuous casting installation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877761A (en) * 1981-10-31 1983-05-11 Mitsubishi Heavy Ind Ltd Controller for level of molten steel in mold
JPS5884652A (en) * 1981-11-13 1983-05-20 Kawasaki Steel Corp Controlling method for automatic charging in continuous casting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU54473A1 (en) * 1966-09-26 1967-11-14
JPS589757A (en) * 1981-07-09 1983-01-20 Nippon Steel Corp Controlling method for charging of molten steel in continuous casting
DE3421344A1 (en) * 1984-06-08 1985-12-12 Krupp Stahl Ag, 4630 Bochum Method and apparatus for the automatic filling of a continuous casting mould for the initial casting of a strand
GB2172532A (en) * 1985-03-19 1986-09-24 Metacon Ag Method and apparatus for starting a continuous casting installation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 85 (M-206)[1230], 9. April 1983; & JP-A-58 009 757 (SHIN NIPPON SEITETSU K.K.) 20-01-1983 *
REGELUNGSTECHNISCHE PRAXIS UND PROZESS-RECHENTECHNIK, Band 14, Nr. 3, Juni 1972, Seiten 77-86, Verlag R. Oldenbourg, M}nchen, DE; W. BR]DERLE et al.: "Dynamische Probleme bei der Giessspiegelregelung einer Stranggiessanlage" *

Also Published As

Publication number Publication date
US4774999A (en) 1988-10-04
EP0200981A2 (en) 1986-11-12
LU85878A1 (en) 1986-12-05

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Inventor name: KRAUS, ANDRE