EP0332939B1 - Bogenstranggiessanlage für Knüppelstränge - Google Patents

Bogenstranggiessanlage für Knüppelstränge Download PDF

Info

Publication number
EP0332939B1
EP0332939B1 EP89103611A EP89103611A EP0332939B1 EP 0332939 B1 EP0332939 B1 EP 0332939B1 EP 89103611 A EP89103611 A EP 89103611A EP 89103611 A EP89103611 A EP 89103611A EP 0332939 B1 EP0332939 B1 EP 0332939B1
Authority
EP
European Patent Office
Prior art keywords
bow
billet
straightening
starting
strand
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 - Lifetime
Application number
EP89103611A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0332939A2 (de
EP0332939A3 (en
Inventor
Adalbert Röhrig
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.)
Concast Standard AG
Original Assignee
Concast Standard AG
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 Concast Standard AG filed Critical Concast Standard AG
Priority to AT89103611T priority Critical patent/ATE71863T1/de
Publication of EP0332939A2 publication Critical patent/EP0332939A2/de
Publication of EP0332939A3 publication Critical patent/EP0332939A3/de
Application granted granted Critical
Publication of EP0332939B1 publication Critical patent/EP0332939B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/081—Starter bars
    • B22D11/083—Starter bar head; Means for connecting or detaching starter bars and ingots
    • 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
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands

Definitions

  • the invention relates to a continuous sheet caster according to the preamble of claim 1.
  • a straightening roller which is also a decoupling between the starting line and cast strand, aligns the arcuate strand at the tangent point according to the single-point straightening process.
  • the rigid start-up line is brought into a parking device above the horizontal conveying path by means of a drive.
  • a correspondingly large circular arc for example between 4 and 8 m radius
  • such systems are also suitable for crack-sensitive steels or larger strand formats, because the elongation during straightening decreases with increasing circular arc radius. If a radius of the circular arc of 3 m or less is provided, the elongation increases when straightening at the tangent point.
  • the distance between the pair of driving rollers at the tangent point and the decoupling and straightening roller is also becoming shorter. This leads to structural and / or surface defects on the cast strands.
  • the invention has for its object to provide a continuous casting system with a rigid start-up strand, which on the one hand has a low overall height with an arc radius of, for example, R ⁇ 3 m and at the same time avoids structural and / or surface defects, such as cracks, etc. on the cast strand.
  • the invention proposes a continuous sheet caster according to the sum of the features of claim 1.
  • the continuous strand casting installation according to the invention allows a rigid, circular-arc-shaped starting strand to be passed through an oval-arc-shaped strand guiding part without radial bending forces acting on the starting strand. Furthermore, the basic concept according to the invention makes it possible to replace part of the circular-arc-shaped strand guideway by the oval-arc-shaped straightening section, as a result of which the cast arc-shaped strand can be gently bent open in two or more stages early, for example before reaching the tangent point.
  • the bending reaction roll (s) ensure that the strand, regardless of its possibly irregular temperature, especially during the pouring period, is exposed to precisely defined changes in elongation along the straightening section.
  • the strand in the known single-point straightening the strand is straightened in one step in an uncontrolled manner.
  • the strand is not directed along a curve, but according to its current local bending resistance.
  • bulky sheet continuous casting plants with a rigid start-up strand can therefore be significantly reduced in structure for the first time without disadvantages for the cast strand, which has a positive effect both on the overall height of the installation and on the length of the parking facility for the rigid start-up strand.
  • the oval-arched straightening section can be seen in the direction of the strand, e.g. start with a vertical beam of radii and the outfeed section for cast strands following the straightening section can rise slightly or be arranged horizontally.
  • An advantageous embodiment is obtained when the pair of drive rollers is arranged on a radius beam which lies in front of the vertical radius beam in the strand running direction and an angle of up to 30 degrees, preferably between 5-20 degrees, is provided between the two radius rays.
  • the start of the bending process along the strand guide can be freely selected depending on the size of the intended casting format, steel quality, etc. by placing the pair of drive rollers.
  • the design principle also enables the number of straightening stages to be freely designed between the pair of drive rollers and the straightening roller.
  • the straightening roller arranged in the strand conveying direction after the vertical radius beam can be used Separate the cast strand at the decoupling point from the start-up strand at the same time and transfer it from the circular arc via an oval arc to a straight line in at least two straightening stages.
  • Any number of bending reaction rollers can be arranged between the pair of drive rollers and the straightening roller along the outside of the oval-curved straightening path.
  • the start head with the coupling element for the cast strand can be attached directly to the rigid start strand.
  • Variants are also known which provide an additional coupling element between the starting head and the rigid starting strand, which ensures a separation between the cast strand and the starting strand during each casting cycle.
  • the rigid starting strand has a pivotable starting head member with a pivot axis parallel to the pivoting axis of the starting strand. The role for decoupling the starting strand from the cast strand exerts a force essentially radially directed to the circular arc-shaped strand path on this starting head member. A decoupling is initiated before the cast strand reaches the straightening and uncoupling roll.
  • Such a start-up line can also then also be trouble-free be moved into the mold if the start-up strand or the strand guide have certain dimensional tolerances to the nominal dimension due to wear.
  • the start-up head can be swiveled slightly and centered.
  • Modern sealing methods that pinch a seal when retracting, as described for example in EP-PS 0'114'309, can also be used in such systems.
  • the precision of the introduction of the start-up line can be further increased if the start-up line is guided at its end opposite the start-up head by means of a pivot lever articulated in the center of the circular arc.
  • a continuous sheet caster with an arc mold 3, an oscillation device 4 and a secondary cooling device 5 is shown.
  • the center of the circular arc is designated 9.
  • a driving straightening machine is constructed from a pair of driving rollers 6, 6 ', a straightening roller 7 and a bending reaction roller 8.
  • An arc-shaped, rigid starting strand 10, which is held and guided by a pivot lever 11 articulated in the circular arc center 9 during the movement, is shown in a decoupling position by a cast strand 12.
  • a support 13 represents part of a parking device.
  • the swivel lever 11, which can be connected fixedly or coupled to the starting line 10, has a swivel drive, not shown, which is known per se.
  • An arrow 15 points to a decoupling point at which the straightening roller 7 separates or uncouples the cast strand 12 from the starting strand 10.
  • the bending reaction roller 8 is positioned so that a first bending radius of e.g. 4.5 m results.
  • a subsequent roller 20 is already arranged in the horizontal plane of a cooling bed. With 7 'dash-dotted line roller 7 is shown in a position after decoupling. In this position she acts as a judge.
  • the rollers 20 belong to the discharge path, which can be arranged horizontally or slightly inclined.
  • the pair of driving rollers 6, 6 lies on a radiant beam 21 which begins at the center 9 of the guideway 17 of the arc-shaped starting strand 10.
  • This radiate beam 21 lies in the strand running direction 22 in front of a vertical radiate beam 23.
  • the bending reaction roller 8 of the oval-arc-shaped straightening path 18 is also arranged on the vertical radiant beam 23. It lies below the guideway 17 of the arc-shaped starting strand 10, approximately in the middle of the oval-arc-shaped straightening section 18. Between the rollers 6, 6 'and this bending reaction roller 8, the strand is bent in a first step. Separates in the line conveying direction 22 after the vertical radius beam 23 at the decoupling point 15 the straightening roller 7 the cast strand from the starting strand and bends the cast strand in the two straightening stages mentioned from the circular arc over an oval arc into a straight line.
  • the position of the bending reaction roller 8 or the radius of the first bending step can be calculated such that there are two partial straightening sections along the straightening section 18 with essentially the same strains on the strand surface. For example, with a 100 mm thick strand, an arc radius of 2500 mm, a length of the straightening path of at least 1000 mm, elongation changes Epsilon in% / mm on the strand surface of a maximum of 0.002 can easily be realized.
  • the rigid starting line 10 is provided with a pivotable starting head member 25 with a pivot axis 26 parallel to the pivot axis in the circular arc center 9 (FIG. 1) of the starting line 10.
  • the roller 7 for decoupling the starting strand 10 from the cast strand 12 exerts a force which is essentially radially directed to the arcuate strand path on the starting head member 25. In this example, the uncoupling can be initiated earlier and the foot end of the strand 12 can thereby be better directed.
  • the starting head member 25 is provided with means which ensure that the member 25 tilts back into the arc shape of the starting strand 10.
  • a further bending reaction role 8 ' is included in this example, which gives an additional straightening level.
  • the cast strand 12 is directed simultaneously in three straightening stages by means of the roller 7.
  • the circular-arc-shaped guideway 17 of the starting strand 10 is shown in dash-dotted lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Wire Processing (AREA)
  • Dental Prosthetics (AREA)
EP89103611A 1988-03-18 1989-03-02 Bogenstranggiessanlage für Knüppelstränge Expired - Lifetime EP0332939B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89103611T ATE71863T1 (de) 1988-03-18 1989-03-02 Bogenstranggiessanlage fuer knueppelstraenge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1040/88 1988-03-18
CH1040/88A CH675975A5 (uk) 1988-03-18 1988-03-18

Publications (3)

Publication Number Publication Date
EP0332939A2 EP0332939A2 (de) 1989-09-20
EP0332939A3 EP0332939A3 (en) 1990-09-19
EP0332939B1 true EP0332939B1 (de) 1992-01-22

Family

ID=4201058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103611A Expired - Lifetime EP0332939B1 (de) 1988-03-18 1989-03-02 Bogenstranggiessanlage für Knüppelstränge

Country Status (6)

Country Link
EP (1) EP0332939B1 (uk)
JP (1) JP2756133B2 (uk)
AT (1) ATE71863T1 (uk)
CH (1) CH675975A5 (uk)
DE (1) DE58900741D1 (uk)
ES (1) ES2030545T3 (uk)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010054241A2 (en) 2008-11-07 2010-05-14 Saint-Gobain Performance Plastics Corporation Large diameter thermoplastic seal
WO2010054243A2 (en) * 2008-11-07 2010-05-14 Saint-Gobain Performance Plastics Corporation Method of forming large diameter thermoplastic seal
RU2614275C2 (ru) 2012-05-23 2017-03-24 Сен-Гобен Перфоманс Пластикс Корпорейшн Способ формования термопластических уплотнителей большого диаметра
CN107234219B (zh) * 2017-07-04 2018-10-23 重庆钢铁集团设计院有限公司 方坯连铸机引锭杆存放方法
CN110252982B (zh) * 2019-06-28 2021-05-04 上海二十冶建设有限公司 方坯连铸机扇形段安装调整方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629453C3 (de) * 1976-06-30 1981-01-08 Rokop Corp., Pittsburgh, Pa. (V.St.A.) Förder- und Haltevorrichtung für einen gezähnten, bogenförmig geführten Anfahrstrang einer StranggieBmaschine
US4291748A (en) * 1980-02-25 1981-09-29 Concast Incorporated Dummy bar for a continuous casting machine
CH658210A5 (de) * 1982-07-16 1986-10-31 Concast Service Union Ag Bogenstranggiessanlage mit bogenfoermigem, starrem anfahrstrang und verfahren zum betrieb einer solchen anlage.
CH659016A5 (de) * 1982-12-20 1986-12-31 Concast Service Union Ag Verfahren und einrichtung zum abdichten eines anfahrkopfes in einer stranggiesskokille.
IT1171101B (it) * 1983-03-04 1987-06-10 Continua Int Macchina per la colata continua in curva di metalli in particolare d acciaio con falsa barra corta
JPS60190453U (ja) * 1984-05-28 1985-12-17 株式会社神戸製鋼所 小断面連続鋳造機の引抜矯正装置
JPS61150753A (ja) * 1984-12-24 1986-07-09 Mitsubishi Heavy Ind Ltd 連続鋳造装置用ソリツド型ダミ−バ−の格納装置

Also Published As

Publication number Publication date
ES2030545T3 (es) 1992-11-01
JP2756133B2 (ja) 1998-05-25
EP0332939A2 (de) 1989-09-20
JPH02155537A (ja) 1990-06-14
CH675975A5 (uk) 1990-11-30
DE58900741D1 (de) 1992-03-05
EP0332939A3 (en) 1990-09-19
ATE71863T1 (de) 1992-02-15

Similar Documents

Publication Publication Date Title
DE69320322T2 (de) Giessform zum Stranggiessen von dünnen Brammen
EP0323958B1 (de) Einrichtung zum stranggiessen von flachen brammen
AT401744B (de) Verfahren und anlage zum stranggiessen
EP0329639B1 (de) Verfahren und Anlage zum Stranggiessen von Stahl
EP0332939B1 (de) Bogenstranggiessanlage für Knüppelstränge
AT408420B (de) Anlage zur herstellung von warmgewalztem stahlband
CH658009A5 (de) Verfahren und plattenkokille zum kuehlen und stuetzen eines stranges in einer plattenkokille einer stahlstranggiessanlage.
WO2002034432A1 (de) Verfahren und vorrichtung zum stranggiessen und anschliessendem verformen eines giessstranges aus stahl, insbesondere eines giessstranges mit blockformat oder vorprofil-format
DE102010007659B4 (de) Stranggießmaschine mit einem Kaltstrang
DE2208635B2 (de) Verfahren und vorrichtung zum einfahren des anfahrstranges in eine stranggiesskokille
EP1132161B1 (de) Verfahren zum Stranggiessen von Brammen, und insbesondere von Dünnbrammen
DE19639299C2 (de) Vorrichtung zur Herstellung eines Vielkant- oder Profil-Formats in einer Stranggießanlage
EP0209059A2 (de) Verfahren und Vorrichtung zum Antreiben eines gegossenen Stranges in einer Stranggiessanlage
US4561490A (en) Method of, and apparatus for, continuously casting a curved strand using a curved rigid dummy bar
US6913065B2 (en) Device for continuously casting metals, especially steel
DE2853868C2 (de) Verfahren zum Stranggießen von Stahl sowie dementsprechend hergestellter Stahlstrang
EP1103321B1 (de) Strangführung einer Vertikalabbiege-Stranggiessanlage
DE69513263T2 (de) Vorrichtung zum Stranggiessen von Produkten mit einem Rundprofilabschnitt und Produkten mit einem Profilabschnitt mit ebener Fläche
CH685432A5 (de) Kokille zum Stranggiessen von Metall, insbesondere von Stahl in Knüppel- und Vorblockquerschnitte.
EP0394776B1 (de) Bogenstranggiessanlage für Stahlstränge mit einer oszillierbaren Durchlaufkokille
DE1508884A1 (de) Vorrichtung zum Stranggiessen,insbesondere von Metallen
US6070648A (en) Method for preventing snaking of continuously cast metal slab
DE3236284C2 (de) Vorrichtung zur Herstellung von Stahlsträngen in einer Ovalbogenstranggießmaschine
CA2182021A1 (en) Roller for a guide system for continuously cast metal
EP1441871B1 (de) Verfahren und giessmaschine zur produktion von gusssträngen im knüppel- oder blockformat

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE DE ES FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19901113

17Q First examination report despatched

Effective date: 19910628

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT SE

REF Corresponds to:

Ref document number: 71863

Country of ref document: AT

Date of ref document: 19920215

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 58900741

Country of ref document: DE

Date of ref document: 19920305

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2030545

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89103611.3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980209

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980212

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980217

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980220

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980225

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19980311

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19980320

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990302

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990303

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

BERE Be: lapsed

Owner name: CONCAST STANDARD A.G.

Effective date: 19990331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990302

EUG Se: european patent has lapsed

Ref document number: 89103611.3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

EUG Se: european patent has lapsed

Ref document number: 89103611.3

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050302

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070622

Year of fee payment: 19

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201