EP0325792A2 - Procédé pour la coulée d'une bande d'acier dans une installation de coulée pour bandes d'acier - Google Patents

Procédé pour la coulée d'une bande d'acier dans une installation de coulée pour bandes d'acier Download PDF

Info

Publication number
EP0325792A2
EP0325792A2 EP88121756A EP88121756A EP0325792A2 EP 0325792 A2 EP0325792 A2 EP 0325792A2 EP 88121756 A EP88121756 A EP 88121756A EP 88121756 A EP88121756 A EP 88121756A EP 0325792 A2 EP0325792 A2 EP 0325792A2
Authority
EP
European Patent Office
Prior art keywords
casting
mold
melt
pouring
steel
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
Application number
EP88121756A
Other languages
German (de)
English (en)
Other versions
EP0325792B1 (fr
EP0325792A3 (en
Inventor
Manfred Kolakowski
Günter Dr. Flemming
Hans Streubel
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag 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 SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT88121756T priority Critical patent/ATE79313T1/de
Publication of EP0325792A2 publication Critical patent/EP0325792A2/fr
Publication of EP0325792A3 publication Critical patent/EP0325792A3/de
Application granted granted Critical
Publication of EP0325792B1 publication Critical patent/EP0325792B1/fr
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
    • B22D11/086—Means for connecting cast ingots of different sizes or compositions

Definitions

  • the invention relates to a method for casting a steel strip in a steel strip casting installation with a cooled mold, in the pouring area of which a pouring tube is immersed in the steel melt, the melt supply being temporarily interrupted and continued after a pause.
  • the invention also relates to a device for performing the method.
  • Japanese patent application No. 57921/75 discloses a method for casting steel slabs in sequential casting, with an I profile being partially inserted horizontally into a first melt after the melt supply has been interrupted is immersed, the melt is covered by cooling material and solidified, and to continue the casting, the upper part of the I-profile is cast around the second melt and is held in a positive manner after solidification. Then the web of the I-profile overrides the pull-out force between the strand parts.
  • the object of the invention is to provide a method for the sequential casting of steel strips, with a temporary interruption of the melt supply, a tensile connection between the casting strip end and the beginning of successive melts being achievable with the required speed under casting conditions. In addition, jamming of the connection area of the cast strip within the mold should be avoided.
  • This object is achieved according to the invention in that after interruption of the melt supply to the side of the pouring area of the mold tie rods are immersed over part of their length in the steel melt, then the level of the casting level is lowered to below the pouring area and then Tar conveyor and mold oscillation ask are switched, and that after continuation of the melt supply, raising the level of the casting level via the pouring tube outlet opening and application of casting powder, strand extraction and mold oscillation are switched on.
  • tie rods can be easily inserted and aligned from the outside into the mold, and due to their great depth of penetration they freeze in the melt within a few seconds.
  • the difficulties associated with the horizontal insertion of a connecting element are eliminated.
  • the new melt immediately forms a tensile connection with the upper end of the tie rod.
  • the tie rods are introduced into parallel areas to the side of the pouring area, whereupon the casting level is lowered to below the enlarged pouring area.
  • the walls of the mold are advantageously provided with a protective coating, for example Molykote, after the casting level has been lowered below the pouring area.
  • a protective coating for example Molykote
  • a tie rod for carrying out the method has a cross-section which changes over its length in order to form a positive and secure connection with the molten steel.
  • the tie rods advantageously have a length of 800-1000 mm and are immersed in the first melt about 250-400 mm.
  • two opposite broad side walls 1, 2 and two narrow side walls 4, 5 arranged between parallel side regions 3 of the wide side walls 1, 2 form the molding space.
  • the broad side walls 1, 2 and the narrow side walls 4, 5 are provided with channels.
  • the broad side walls 1, 2 form an enlarged pouring area 7 towards their center, into which a pouring tube 8 with lateral outlet openings protrudes.
  • the format part 9 is located below the pouring area 7.
  • the mold is through the casting tube 8 filled.
  • Belt take-off speed and pouring rate are kept in equilibrium, so that the honeysuckle 10 is held at a desired height hs.
  • the honeysuckle 10 is covered by insulating casting powder 11, from which liquid slag forms in the contact area with the liquid steel.
  • the slag acts as a lubricant between the mold walls 1, 2, 4, 5 and the strand shell 12 that forms. This lubrication is supported by an oscillating movement of the mold and the sticking of the strand shell to the mold walls 1, 2, 4, 5 is prevented (FIGS. 1-3).
  • tie rods 13 are immersed approximately one third of their length in the melt, preferably in the vicinity of the narrow side walls 4, 5, which freeze in the surrounding steel melt within a few seconds due to their cold mass and the cooled mold walls ( 4, 5).
  • the bath level 10 By interrupting the melt feed, the bath level 10 is lowered to a lower height Hu below the pouring area 7 with continued strip removal and with mold oscillation.
  • the narrowing from the pouring area 7 to the lower format part 14 leads to an increase in the molten steel and the tie rods 13.
  • the pouring tube and / or intermediate container can be replaced and, if necessary, the steel grade can be changed.
  • the free walls are coated with a protective coating (Fig. 6).
  • the casting process is continued with the opening of the melt feed, the goat mirror 10 being raised and the upper parts of the tie rods 13 being cast and being connected to the solidifying new steel strip B.
  • pouring powder is applied to the pouring level.
  • strand withdrawal and mold oscillation are started.
  • the tie rods 13 transmit the tensile forces from the belt part A to the belt part B until it reaches the area of the belt take-off, not shown, below the mold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP88121756A 1988-01-23 1988-12-28 Procédé pour la coulée d'une bande d'acier dans une installation de coulée pour bandes d'acier Expired - Lifetime EP0325792B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121756T ATE79313T1 (de) 1988-01-23 1988-12-28 Verfahren zum giessen eines stahlbandes in einer stahlbandgiessanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3801932A DE3801932A1 (de) 1988-01-23 1988-01-23 Verfahren zum giessen eines stahlbandes in einer stahlbandgiessanlage
DE3801932 1988-01-23

Publications (3)

Publication Number Publication Date
EP0325792A2 true EP0325792A2 (fr) 1989-08-02
EP0325792A3 EP0325792A3 (en) 1990-08-08
EP0325792B1 EP0325792B1 (fr) 1992-08-12

Family

ID=6345850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121756A Expired - Lifetime EP0325792B1 (fr) 1988-01-23 1988-12-28 Procédé pour la coulée d'une bande d'acier dans une installation de coulée pour bandes d'acier

Country Status (8)

Country Link
US (1) US4969506A (fr)
EP (1) EP0325792B1 (fr)
JP (1) JPH01245948A (fr)
CN (1) CN1021205C (fr)
AT (1) ATE79313T1 (fr)
CA (1) CA1325324C (fr)
DE (2) DE3801932A1 (fr)
ES (1) ES2034148T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398378A3 (fr) * 1989-05-19 1992-04-08 Dislich, Margrit, Dr. Arrangement pour liaison d'une nouvelle billette en coulée continue

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19639052C2 (de) * 1996-09-24 1998-07-09 Daimler Benz Ag Dünnwandiges, aus Leichtmetall bestehendes Druckgußteil als Strukturbauteil für Karosserien
RU2136435C1 (ru) * 1998-09-08 1999-09-10 Институт машиноведения и металлургии ДВО РАН Способ получения непрерывнолитых деформированных полых заготовок и устройство для его осуществления
RU2162765C2 (ru) * 1999-03-16 2001-02-10 Институт машиноведения и металлургии ДВО РАН Способ получения непрерывных биметаллических деформированных заготовок из разливаемых металлов и устройство для его осуществления
RU2147263C1 (ru) * 1999-04-07 2000-04-10 Институт машиноведения и металлургии Дальневосточного отделения РАН Способ получения непрерывнолитых деформированных биметаллических заготовок и устройство для его осуществления
RU2198056C2 (ru) * 2000-11-14 2003-02-10 Государственное учреждение Институт машиноведения и металлургии ДВО РАН Способ получения непрерывных деформированных полых заготовок из измельченного металла и устройство для его осуществления
RU2200073C2 (ru) * 2001-05-04 2003-03-10 Государственное учреждение Институт машиноведения и металлургии ДВО РАН Способ получения непрерывных деформированных полых заготовок и установка для его реализации
RU2198057C1 (ru) * 2001-05-04 2003-02-10 Государственное учреждение Институт машиноведения и металлургии ДВО РАН Способ получения непрерывных деформированных полых заготовок и установка для его осуществления
RU2203766C1 (ru) * 2001-10-31 2003-05-10 Государственное учреждение ГУ Институт машиноведения и металлургии ДВО РАН Способ получения непрерывных деформированных полых заготовок и установка для его реализации

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7144775U (de) * 1972-02-17 Voeest Ag Einrichtung zum Verbinden von Strängen beim Vollkontinuierlichen Stranggießen schmelzflüssiger Metalle
JPS5057921A (fr) * 1973-09-25 1975-05-20
JPS53106337A (en) * 1977-02-28 1978-09-16 Kyoei Steel Ltd Continuous casting rolling method
JPS54114434A (en) * 1978-02-25 1979-09-06 Sumitomo Metal Ind Continuous casting method
JPS5942587B2 (ja) * 1978-06-20 1984-10-16 川崎製鉄株式会社 異鋼種溶鋼の連続鋳造方法
JPS558376A (en) * 1978-07-05 1980-01-21 Kawasaki Steel Corp Continuous casting method of different kind of steel
JPS5725256A (en) * 1980-07-22 1982-02-10 Kawasaki Steel Corp Joint fitting for continuous casting of dissimilar kind molten steels
US4730660A (en) * 1984-09-05 1988-03-15 Metacon Aktiengesellschaft Process for casting molten metal into several strands
DE3509932A1 (de) * 1985-03-19 1986-10-02 Metacon AG, Zürich Verfahren zum anfahren einer stranggiessanlage
DE3603190A1 (de) * 1986-02-03 1987-08-06 Schloemann Siemag Ag Anfahrkopf fuer eine stahlbandgiessanlage
KR950014347B1 (ko) * 1986-02-27 1995-11-25 에스 엠 에스 슐레만-지이마크 악티엔게젤샤프트 강대주조공장에 있어서의 주조방법 및 장치
DE3606289A1 (de) * 1986-02-27 1987-09-03 Schloemann Siemag Ag Verfahren zur beendigung des giessbetriebes einer stahlbandgiessanlage
US4716954A (en) * 1986-10-24 1988-01-05 Allegheny Ludlum Corporation Method and apparatus for sequentially continuous casting different composition grades of steel
DE3640525C2 (de) * 1986-11-27 1996-02-15 Schloemann Siemag Ag Kokille zum Stranggießen von Stahlband

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398378A3 (fr) * 1989-05-19 1992-04-08 Dislich, Margrit, Dr. Arrangement pour liaison d'une nouvelle billette en coulée continue

Also Published As

Publication number Publication date
CN1021205C (zh) 1993-06-16
JPH01245948A (ja) 1989-10-02
DE3873733D1 (de) 1992-09-17
DE3801932A1 (de) 1989-08-03
US4969506A (en) 1990-11-13
ES2034148T3 (es) 1993-04-01
EP0325792B1 (fr) 1992-08-12
EP0325792A3 (en) 1990-08-08
CA1325324C (fr) 1993-12-21
ATE79313T1 (de) 1992-08-15
CN1034326A (zh) 1989-08-02

Similar Documents

Publication Publication Date Title
DE702638C (de) Vorrichtung zum ununterbrochenen Giessen von Metallrohren
DE69712180T2 (de) Metallzuführsytem für stranggiessanlage
EP0325792B1 (fr) Procédé pour la coulée d'une bande d'acier dans une installation de coulée pour bandes d'acier
EP0107068A1 (fr) Procédé pour la coulée continue horizontale de métaux, en particulier de l'acier
DE2951977A1 (de) Hohlzeug fuer steigendes giessen
EP0238844B1 (fr) Procédé pour démarrer une machine de coulée continue d'acier en bande
DE2104616A1 (de) Vorrichtung zum Stranggießen
DE3146417A1 (en) Method of manufacturing metallic wire products by direct casting of molten metal,and apparatus for carrying out the method
DE68907644T2 (de) Verfahren zur Kühlung eines metallischen Stranggussproduktes.
DE3050939C2 (fr)
CH626822A5 (fr)
EP0036611B1 (fr) Procédé et dispositif pour soutenir une barre d'acier fabriquée par un procédé de coulée continue
DE3922549C2 (fr)
EP0234491A2 (fr) Procédé pour terminer l'opération de coulée dans une installation de coulée de bandes d'acier
DE2811546A1 (de) Verfahren und vorrichtung zum kontinuierlichen giessen von stahl
DE3136847C1 (de) Verfahren und Vorrichtung zum Horizontalstranggiessen von fluessigen Metallen,insbesondere von Stahl
DE69703793T2 (de) Stranggussverfahren von metallen und kokille zur durchführung dieses verfahrens
DE69714078T2 (de) Verfahren und anlage stranggiessen von metall
DE69000282T2 (de) Verfahren und vorrichtung zur herstellung von duennen metallprodukten mittels strangguss.
DE3802203C2 (fr)
DE2903245A1 (de) Verfahren und vorrichtung zum aendern der breite eines gusstranges
CH623247A5 (fr)
EP0161475B1 (fr) Dispositif pour la fermeture latérale d'une cavité de façonnage avec une coupe transversale substantiellement rectangulaire dans une installation de coulée continue
EP0674958A2 (fr) Procédé et dispositif pour la coulée d'un produit proche de ses dimensions finales
EP3593923A1 (fr) Procédé de coulée en continu, en particulier dans une installation de coulée verticale permettant de couler de l'acier

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

17P Request for examination filed

Effective date: 19890118

AK Designated contracting states

Kind code of ref document: A2

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

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

17Q First examination report despatched

Effective date: 19911128

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 79313

Country of ref document: AT

Date of ref document: 19920815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3873733

Country of ref document: DE

Date of ref document: 19920917

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930108

Year of fee payment: 5

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2034148

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

Ref country code: BE

Effective date: 19931231

BERE Be: lapsed

Owner name: SCHLOEMANN-SIEMAG A.G. SMS

Effective date: 19931231

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

Ref country code: ES

Payment date: 19941222

Year of fee payment: 7

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

Ref country code: FR

Payment date: 19951115

Year of fee payment: 8

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

Ref country code: GB

Payment date: 19951222

Year of fee payment: 8

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

Ref country code: GB

Effective date: 19961228

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: 19961229

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

Effective date: 19961228

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

Ref country code: FR

Effective date: 19970829

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: AT

Payment date: 20011203

Year of fee payment: 14

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

Ref country code: DE

Payment date: 20011208

Year of fee payment: 14

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: 20021228

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: 20030701

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19970113

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: 20051228