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 PDFInfo
- 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- Withdrawn
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.
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)
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 |
WO2019099480A1 (en) * | 2017-11-15 | 2019-05-23 | Novelis Inc. | Metal level overshoot or undershoot mitigation at transition of flow rate demand |
Citations (4)
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)
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 |
-
1985
- 1985-05-07 LU LU85878A patent/LU85878A1/en unknown
-
1986
- 1986-04-21 EP EP86105504A patent/EP0200981A3/en not_active Withdrawn
-
1987
- 1987-07-31 US US07/081,621 patent/US4774999A/en not_active Expired - Fee Related
Patent Citations (4)
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)
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 |
---|---|
LU85878A1 (en) | 1986-12-05 |
US4774999A (en) | 1988-10-04 |
EP0200981A2 (en) | 1986-11-12 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19890406 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KRAUS, ANDRE |