EP0992303A1 - Strangabzugsverfahren und hiermit korrespondierende Bogenstranggiessanlage - Google Patents
Strangabzugsverfahren und hiermit korrespondierende Bogenstranggiessanlage Download PDFInfo
- Publication number
- EP0992303A1 EP0992303A1 EP99116308A EP99116308A EP0992303A1 EP 0992303 A1 EP0992303 A1 EP 0992303A1 EP 99116308 A EP99116308 A EP 99116308A EP 99116308 A EP99116308 A EP 99116308A EP 0992303 A1 EP0992303 A1 EP 0992303A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal strip
- guide roller
- segment
- speed
- arc
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009749 continuous casting Methods 0.000 title abstract 3
- 239000002184 metal Substances 0.000 claims abstract description 99
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000007665 sagging Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Images
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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1282—Vertical casting and curving the cast stock to the horizontal
-
- 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
Definitions
- the present invention relates to a strand withdrawal method for a metal strip cast in a continuous sheet caster, in particular a steel band, the metal band initially with a an input speed driven arc input segment is withdrawn vertically from a casting mold, the metal strip an arc shape is embossed in the arc entrance segment so that the metal band runs into an arc, the metal band after reaching a horizontal tape running direction from one with an output speed driven sheet output segment straightened and fed out of the sheet exit segment with the metal strip between the arc entry segment and the arc output segment is initially arranged on a circular arc Reaction role and then guided over a guide role is, as well as a corresponding continuous sheet caster.
- Such a strand withdrawal process or such a continuous sheet casting installation are from the company SMS Schloemann-Siemag distributed as so-called CSP systems.
- CSP systems Thin slabs cast with a strip thickness between 40 mm and 150 mm.
- the metal strip is made from a casting mold deducted vertically. After that, the metal strip is driven by a Arch input segment (bending driver) stamped an arch shape. After reaching a horizontal tape running direction, this will be Metal strip from a driven sheet exit segment (pull-out direction driver) straightened.
- the metal band runs between the two drivers exactly circular arc.
- this ahead of both drivers act on the metal strip at exactly the same speed. Differences in speeds either cause one tendon-shaped course or a sack-like sagging of the metal band between the two drivers. Sagging can be mechanical be counteracted by the fact that a reaction role and an additional guide roller supports the metal band from below.
- Deviations of the metal strip from its ideal line can Malfunctions can lead to the casting being stopped. Differences in speed must therefore be corrected immediately in order to Deviations of the metal strip from its ideal line as far as possible to avoid.
- the metal band should at least a roll arranged on the circular arc roll firmly to the total course of the metal strip and thus also the entire continuous sheet caster increased stability and increased synchronization to rent.
- the object of the present invention is a strand withdrawal method and a corresponding continuous sheet caster to provide, by means of which the metal band with sufficient accuracy is guided on its ideal line and Deviations from the ideal line with certainty in time are detectable that the deviations are counteracted can.
- the task is solved for the strand withdrawal process in that the guide roller is arranged below the arc that a Applying the metal tape to the guide roller or lifting it off of the metal strip is gripped by the guide roller and that the Initial speed when the metal band is applied to the Guide roller increased and when lifting the metal strip from the Leadership role is lowered.
- the object is achieved in that the guide roller is arranged below the arc that the Leadership role has a detection device by means of which the metal tape lies against the guide roller or is lifted off of the metal strip can be detected by the guide roller, and that the Detection device with a control element in operative connection stands, by means of which the output drive corresponding to the application of the metal strip to the guide roller or lifting the Metal strip can be controlled by the guide roller.
- the guide roller rotates at a peripheral speed. If the circumferential speed is the metal band on the guide roller necessarily equal to the input speed. It it is therefore possible for the metal strip to lie against the guide roller is detected when the difference in peripheral speed a predetermined speed barrier to the input speed falls below, and that on lifting the metal strip is recognized by the leadership role when the difference the peripheral speed to the input speed the predetermined Speed limit exceeded.
- the detection device can be, for example, as Speed sensor for detecting a peripheral speed the leadership role.
- the metal band lies on the guide roller, it exercises one Contact force on the guide roller. It is therefore also possible that recognized on the metal tape on the guide roller if the contact force exceeds a predetermined force barrier, and that on lifting the metal strip from the guide roller is detected when the applied force exceeds the predetermined force barrier falls below.
- the detection device can act as a contact force sensor to detect a contact force with which the metal strip abuts the guide roller, be formed.
- a Metal strip 1 here a steel strip 1, castable.
- the metal strip 1 has a strip thickness between 40 mm and 150 mm.
- a so-called Thin slab caster At the continuous sheet caster 1 is a so-called Thin slab caster.
- the continuous sheet caster has a casting mold 2 on.
- An arc entry segment 3 is arranged below the casting mold.
- the arc input segment 3 is from an input drive system 4 controlled such that it with the metal strip 1 an input velocity ve perpendicular from the casting mold 2 subtracts and impresses an arc shape on the metal strip 1.
- the metal band 1 therefore runs when leaving the sheet entry segment 3 into an arc.
- a reaction roller 5 is located below the arc input segment 3 arranged.
- the reaction roller 5 in turn is a leadership role 6 subordinate.
- the guide roller 6 is an arc exit segment 7 subordinate.
- the sheet exit segment 7 is speed controllable Output drive system 8 driven.
- the sheet exit segment 7 aligns the metal strip 1 after reaching it a horizontal tape running direction x straight again. Further promotes it the metal strip 1 at an initial speed va from the Arch output segment 7 from.
- the guide roller 6 is not on the arc, but below the Arranged circular arc.
- the distance of the guide roller 6 from the arc is between 5 cm and 15 cm.
- the Guide roller 6 on a detection device 9.
- the detection device 9 is in the present case as a speed sensor educated.
- the detection device 9 can be used to detect at what peripheral speed vu the guide roller 6 rotates. If the difference in peripheral speed vu to Input speed ve a predetermined speed limit falls below, is applied by a control element 10 of the metal strip 1 to the guide roller 6 recognized. If on the other hand, the difference between the peripheral speed vu and the input speed ve exceeds the predetermined speed limit, is from the control element 10 on lifting the metal strip 1 recognized by the guide roller 6.
- the detection device 9 can therefore be used to put on the Metal strip 1 to the guide roller 6 or lifting the metal strip 1 can be captured by the guide roller 6. So can also by specifying a corresponding setpoint va * to the output drive system 8 the initial speed, especially when putting on of the metal strip 1 to the guide roller and when lifting the Metal strip 1 are lowered by the guide roller 6.
- the detection device 9 can also be used as a contact force sensor be trained.
- the metal tape 1 against the guide roller 6 can be recognized when the applied force is a predetermined force barrier exceeds.
- the metal strip can be lifted off 1 can be recognized by the guide roller 6 when the contact force falls below a predetermined force barrier.
Abstract
Description
- Figur 1
- eine Bogenstranggießanlage für ein Metallband.
- 1
- Stahlband
- 2
- Gießkokille
- 3
- Bogeneingangssegment
- 4
- Eingangs-Antriebssystem
- 5
- Reaktionsrolle
- 6
- Führungsrolle
- 7
- Bogenausgangssegment
- 8
- Ausgangs-Antriebssystem
- 9
- Erfassungseinrichtung
- 10
- Steuerelement
- d
- Abstand
- va
- Ausgangsgeschwindigkeit
- va*
- Sollwert
- ve
- Eingangsgeschwindigkeit
- vu
- Umfangsgeschwindigkeit
- x
- Bandlaufrichtung
Claims (6)
- Strangabzugsverfahren für ein in einer Bogenstranggießanlage gegossenes Metallband (1), insbesondere ein Stahlband (1), wobei das Metallband (1) zunächst von einem mit einer Eingangsgeschwindigkeit (ve) angetriebenen Bogeneingangssegment (3) senkrecht aus einer Gießkokille (2) abgezogen wird, wobei dem Metallband (1) im Bogeneingangssegment (3) eine Bogenform aufgeprägt wird, so daß das Metallband (1) in einen Kreisbogen einläuft,wobei das Metallband (1) nach Erreichen einer waagerechten Bandlaufrichtung (x) von einem mit einer Ausgangsgeschwindigkeit (va) angetriebenen Bogenausgangssegment (7) gerade gerichtet und aus dem Bogenausgangssegment (7) ausgefördert wird,wobei das Metallband (1) zwischen dem Bogeneingangssegment (3) und dem Bogenausgangssegment (7) zunächst über eine am Kreisbogen angeordnete Reaktionsrolle (5) und sodann über eine Führungsrolle (6) geführt wird,
dadurch gekennzeichnet,daß die Führungsrolle (6) unterhalb des Kreisbogens angeordnet ist,daß ein Sichanlegen des Metallbandes (1) an die Führungsrolle (6) bzw. ein Abheben des Metallbandes (1) von der Führungsrolle (6) erfaßt wird unddaß die Ausgangsgeschwindigkeit (va) beim Sichanlegen des Metallbandes (1) an die Führungsrolle (6) erhöht und beim Abheben des Metallbandes (1) von der Führungsrolle (6) erniedrigt wird. - Strangabzugsverfahren nach Anspruch 1,
dadurch gekennzeichnet,daß die Führungsrolle (6) mit einer Umfangsgeschwindigkeit (vu) rotiert,daß auf Sichanlegen des Metallbandes (1) an die Führungsrolle (6) erkannt wird, wenn die Differenz der Umfangsgeschwindigkeit (vu) zur Eingangsgeschwindigkeit (ve) eine vorbestimmte Geschwindigkeitsschranke unterschreitet, und daß auf Abheben des Metallbandes (1) von der Führungsrolle (6) erkannt wird, wenn die Differenz der Umfangsgeschwindigkeit (vu) zur Eingangsgeschwindigkeit (ve) die vorbestimmte Geschwindigkeitsschranke überschreitet. - Strangabzugsverfahren nach Anspruch 1,
dadurch gekennzeichnet,daß das Metallband (1) auf die Führungsrolle (6) eine Anliegekraft ausübt,daß auf Sichanlegen des Metallbandes (1) an die Führungsrolle (6) erkannt wird, wenn die Anliegekraft eine vorbestimmte Kraftschranke überschreitet, unddaß auf Abheben des Metallbandes (1) von der Führungsrolle (6) erkannt wird, wenn die Anliegekraft die vorbestimmte Kraftschranke unterschreitet. - Bogenstranggießanlage zum Gießen eines Metallbandes (1), insbesondere eines Stahlbandes (1),mit einer Gießkokille (2),mit einem unterhalb der Gießkokille (2) angeordneten Bogeneingangssegment (3), mittels dessen das Metallband (1) senkrecht aus der Gießkokille (2) abziehbar und dem Metallband (1) eine Bogenform aufprägbar ist, so daß das Metallband (1) beim Verlassen des Bogeneingangssegments (3) in einen Kreisbogen einläuft,mit einer unterhalb des Bogeneingangssegments (3) am Kreisbogen angeordneten Reaktionsrolle (5),mit einer der Reaktionsrolle (5) nachgeordneten Führungsrolle (6),mit einem der Führungsrolle (6) nachgeordneten Bogenausgangssegment (7) mit einem geschwindigkeitssteuerbaren Ausgangsantrieb (8), mittels dessen das Metallband (1) nach Erreichen einer waagerechten Bandlaufrichtung (x) gerade richtbar und aus dem Bogenausgangssegment (7) ausförderbar ist,
dadurch gekennzeichnet,daß die Führungsrolle (6) unterhalb des Kreisbogens angeordnet ist,daß die Führungsrolle (6) eine Erfassungseinrichtung (9) aufweist, mittels derer ein Sichanlegen des Metallbandes (1) an die Führungsrolle (6) bzw. Abheben des Metallbandes (1) von der Führungsrolle (6) erfaßbar ist, unddaß die Erfassungseinrichtung (9) mit einem Steuerelement (10) in Wirkverbindung steht, mittels dessen der Ausgangsantrieb (8) entsprechend dem Sichanlegen des Metallbandes (1) an die Führungsrolle (6) bzw. dem Abheben des Metallbandes (1) von der Führungsrolle (6) ansteuerbar ist. - Bogenstranggießanlage nach Anspruch 4,
dadurch gekennzeichnet,daß die Erfassungseinrichtung (9) als Geschwindigkeitssensor (9) zum Erfassen einer Umfangsgeschwindigkeit (vu) der Führungsrolle (6) ausgebildet ist. - Bogenstranggießanlage nach Anspruch 4,
dadurch gekennzeichnet,daß die Erfassungseinrichtung (9) als Anliegekraftsensor zum Erfassen einer Anliegekraft, mit der das Metallband (1) an der Führungsrolle (6) anliegt, ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19838774A DE19838774A1 (de) | 1998-08-26 | 1998-08-26 | Strangabzugsverfahren und hiermit korrespondierende Bogenstranggießanlage |
DE19838774 | 1998-08-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0992303A1 true EP0992303A1 (de) | 2000-04-12 |
EP0992303B1 EP0992303B1 (de) | 2003-06-25 |
Family
ID=7878771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99116308A Expired - Lifetime EP0992303B1 (de) | 1998-08-26 | 1999-08-19 | Strangabzugsverfahren und hiermit korrespondierende Bogenstranggiessanlage |
Country Status (5)
Country | Link |
---|---|
US (1) | US6427758B1 (de) |
EP (1) | EP0992303B1 (de) |
AT (1) | ATE243588T1 (de) |
DE (2) | DE19838774A1 (de) |
ES (1) | ES2202974T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202015105526U1 (de) | 2015-10-19 | 2015-11-09 | Sms Group Gmbh | Minimal-Richtaggregat für Dünnbrammen-Gießanlagen |
CN110312581A (zh) * | 2017-02-23 | 2019-10-08 | 普锐特冶金技术日本有限公司 | 薄板连续铸造装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6648059B2 (en) * | 2001-02-22 | 2003-11-18 | Aktiebolaget Skf | Method for detecting a roller failure |
DE102004002783A1 (de) * | 2004-01-20 | 2005-08-04 | Sms Demag Ag | Verfahren und Einrichtung zum Bestimmen der Lage der Sumpfspitze im Gießstrang beim Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen |
DE102005028703A1 (de) * | 2005-06-20 | 2006-12-28 | Siemens Ag | Verfahren zur Regelung und/oder Steuerung eines Anstellsegmentes in einer Stranggießanlage und Vorrichtung hierfür |
DE102007005778A1 (de) * | 2006-03-09 | 2007-09-13 | Sms Demag Ag | Stranggießanlage und Verfahren zum Betreiben einer Stranggießanlage |
US10850322B2 (en) | 2017-10-30 | 2020-12-01 | Nucor Corporation | Casting stand control system with radius roll feedback and method of use |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3344841A (en) * | 1965-06-18 | 1967-10-03 | Koppers Co Inc | Control apparatus for a continuous cast billet |
EP0614714A1 (de) * | 1993-03-10 | 1994-09-14 | Sms Schloemann-Siemag Aktiengesellschaft | Stranggiessmaschine für die kontinuierliche Herstellung von Dünnbrammen aus Stahl |
DE19637545A1 (de) * | 1996-09-14 | 1998-03-19 | Schloemann Siemag Ag | Vorrichtung zur Umleitung eines in einer Stranggießkokille gegossenen Dünnbrammenstranges aus der Vertikalen in eine horizontale Ausförderrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3478808A (en) * | 1964-10-08 | 1969-11-18 | Bunker Ramo | Method of continuously casting steel |
AT378707B (de) * | 1983-01-11 | 1985-09-25 | Voest Alpine Ag | Verfahren zum ueberwachen einer bogenstranggiessanlage |
US4949777A (en) * | 1987-10-02 | 1990-08-21 | Kawasaki Steel Corp. | Process of and apparatus for continuous casting with detection of possibility of break out |
DE69228411T2 (de) * | 1991-04-19 | 1999-09-16 | Nippon Steel Corp | Doppelroll-stranggiessverfahren und vorrichtung |
-
1998
- 1998-08-26 DE DE19838774A patent/DE19838774A1/de not_active Withdrawn
-
1999
- 1999-08-19 ES ES99116308T patent/ES2202974T3/es not_active Expired - Lifetime
- 1999-08-19 DE DE59906073T patent/DE59906073D1/de not_active Expired - Lifetime
- 1999-08-19 AT AT99116308T patent/ATE243588T1/de active
- 1999-08-19 US US09/377,352 patent/US6427758B1/en not_active Expired - Fee Related
- 1999-08-19 EP EP99116308A patent/EP0992303B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3344841A (en) * | 1965-06-18 | 1967-10-03 | Koppers Co Inc | Control apparatus for a continuous cast billet |
EP0614714A1 (de) * | 1993-03-10 | 1994-09-14 | Sms Schloemann-Siemag Aktiengesellschaft | Stranggiessmaschine für die kontinuierliche Herstellung von Dünnbrammen aus Stahl |
DE19637545A1 (de) * | 1996-09-14 | 1998-03-19 | Schloemann Siemag Ag | Vorrichtung zur Umleitung eines in einer Stranggießkokille gegossenen Dünnbrammenstranges aus der Vertikalen in eine horizontale Ausförderrichtung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202015105526U1 (de) | 2015-10-19 | 2015-11-09 | Sms Group Gmbh | Minimal-Richtaggregat für Dünnbrammen-Gießanlagen |
CN110312581A (zh) * | 2017-02-23 | 2019-10-08 | 普锐特冶金技术日本有限公司 | 薄板连续铸造装置 |
Also Published As
Publication number | Publication date |
---|---|
US6427758B1 (en) | 2002-08-06 |
EP0992303B1 (de) | 2003-06-25 |
ES2202974T3 (es) | 2004-04-01 |
ATE243588T1 (de) | 2003-07-15 |
DE59906073D1 (de) | 2003-07-31 |
DE19838774A1 (de) | 2000-03-02 |
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