EP0355393B1 - Fausse barre pour installations de coulée continue - Google Patents

Fausse barre pour installations de coulée continue Download PDF

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Publication number
EP0355393B1
EP0355393B1 EP89113111A EP89113111A EP0355393B1 EP 0355393 B1 EP0355393 B1 EP 0355393B1 EP 89113111 A EP89113111 A EP 89113111A EP 89113111 A EP89113111 A EP 89113111A EP 0355393 B1 EP0355393 B1 EP 0355393B1
Authority
EP
European Patent Office
Prior art keywords
contact elements
sheet metal
starting
strip
projections
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
EP89113111A
Other languages
German (de)
English (en)
Other versions
EP0355393A2 (fr
EP0355393A3 (fr
Inventor
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
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 filed Critical SMS Schloemann Siemag AG
Priority to AT89113111T priority Critical patent/ATE87518T1/de
Publication of EP0355393A2 publication Critical patent/EP0355393A2/fr
Publication of EP0355393A3 publication Critical patent/EP0355393A3/fr
Application granted granted Critical
Publication of EP0355393B1 publication Critical patent/EP0355393B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a start-up strand provided with a start-up head for continuous casting plants with an at least partially curved strand guide, several rows of contact members being fastened over a part of their length on a flexible metal band and free projections of contact members of different rows overlapping in the longitudinal direction of the start-up strand.
  • a plurality of rows of contact members are arranged in a staggered division on a flexible sheet metal.
  • the contact members are trapezoidal or beveled to form a bend-free overlap area and are attached to the sheet metal surface with their smaller area.
  • This approach strand has the following disadvantages:
  • the sheet metal can only be freely bent on the narrow overlap areas, which leads to notch stresses in these areas. Therefore, the start-up line is not suitable for line guides with a small arc radius.
  • Each time the driven rollers of the strand guide come into contact with an overlap area a tilting moment arises due to the smaller attachment surfaces of the contact members, as a result of which their attachment points are stressed too much.
  • the object of the invention is to provide a simple, reliable start-up line, particularly for continuous casting machines is suitable for thin steel strips with a small radius of curvature of the strand guide.
  • tilting moments in contact members and notch stresses in the flexible belt should be avoided.
  • the object of the invention is alternatively achieved in that the starting strand consists of a plurality of flexible sheet metal strips arranged next to one another at a distance, which are connected by transverse webs of contact members, and in that longitudinal webs with free projections of the contact members are located in the spacing area of the sheet metal strips.
  • the starting strands according to the invention are inexpensive to manufacture and require little maintenance.
  • the operational safety is increased by avoiding tilting moments and notch stresses.
  • the start-up strand 1 shown in FIGS. 1 and 2 consists of a flexible sheet metal 2, preferably made of spring steel, at one end of which a start-up head 3 is fastened for closing a continuous casting mold and for forming a connection with the casting strand.
  • the plate 2 is fastened in a slot 3a of the start head.
  • the flexible sheet metal 2 there are four rows of recesses 4, 5, 6, 7 arranged in the longitudinal direction, each of which two adjacent rows of the recesses 4, 5 and 6, 7 have a mutually offset division.
  • rectangular contact members 8 are fastened with rivets 9 on each side of the sheet, which protrude with projections 10 over the recesses 4, 5, 6, 7, where they are supported against each other by intermediate plates 11.
  • the offset attachment of the contact members 8 leads to the overlap of their projections 10, so that the starting strand 1 forms a gapless and therefore bumpless contact path for the strand guide rollers as it passes through the strand guide of the continuous casting installation.
  • the transition to the starting head 3 is achieved by projections 10a arranged thereon.
  • the contact-free guidance of the projections 10, 10a within the recesses 4, 5, 6, 7 enables the starting strand 1 to be freely adapted even within a strand guide with a small size Radius of curvature.
  • the new start strand 1 can also be used in a continuous caster according to the strand bending system.
  • the starting strand 12 shown in FIGS. 3 and 4 consists of five flexible sheet metal strips 13, 14, 15, 16, 17 arranged next to one another at a distance, preferably made of spring steel. The metal strips are inserted and fixed at one end in a slot 18a of a start head 18.
  • the metal strips 13, 14, 15, 16, 17 are connected on each side by the crossbars 19a, 20a of double cross-shaped contact members 19, 20 by rivets 21.
  • the longitudinal webs 19b, 20b of the contact members 19, 20 extend in the spacing areas 22 and 23 of the metal strips 13-17.
  • the longitudinal webs 19b, 20b of successive contact members 19, 20 overlap in alternating spacing areas 22, 23.
  • intermediate plates 24 are arranged between the longitudinal webs 19b, 20b of opposing contact members 19, 20, intermediate plates 24 are arranged.
  • the low-cost start-up strand 12 thus created can be conveyed evenly and smoothly by the strand guide rollers, a good adaptation to small radii of curvature of the strand guide or radius of curvature being possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Hydroponics (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Glass Compositions (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (8)

  1. Fausse barre (1, 12) pour installations de coulée continue ayant une allure au moins partiellement courbée, la fausse barrre étant munie d'une tête de barre (3, 18), plusieurs rangées d'éléments de contact (8) étant fixées des deux côtés d'une feuille métallique flexible (2), sur une partie de la longueur de ceux-ci et des parties en saillie libre (10, 19b, 20b) des éléments de contact (8) de diverses rangées se chevauchant dans la direction longitudinale de la fausse barre (1, 12),
       caractérisée en ce que la feuille métallique flexible (2) comporte des évidements (4, 5, 5, 7) correspondant à la projection des parties en saillie libre (10).
  2. Fausse barre (1, 12) pour installations de coulée continue ayant une allure au moins partiellement courbée, la fausse barre étant munie d'une tête de barre (3, 18), plusieurs rangées d'éléments de contact (8) étant fixées des deux côtés d'une feuille métallique flexible (2), sur une partie de la longueur de ceux-ci et des parties en saillie libre (10, 19b, 20b) des éléments de contact (8) de diverses rangées se chevauchant dans la direction longitudinale de la fausse barre (1, 12),
       caractérisée en ce qu'elle (12) consiste en plusieurs bandes métalliques (13, 14, 15, 16, 17) flexibles agencées à distance l'une à côté de l'autre, qui sont reliées par des traverses (19a, 20a) d'éléments de contact (19, 20) et en ce que des parties longitudinales (19b, 20b) munies de parties en saillie libre des éléments de contact (19, 20) se trouvent dans l'espace (22, 23) compris entre les bandes métalliques (13, 14, 15, 16, 17).
  3. Fausse barre selon la revendication 1 ou 2,
       caractérisée en ce que des feuilles métalliques intercalaires (11, 24) d'épaisseur correspondant à celle des feuilles métalliques (2 oubien 13, 14, 15, 16, 17) sont agencées entre les parties en saillie libre opposées (10) des éléments de contact (8, 19, 20), dans la zone des évidements (4, 5, 6, 7, 22, 23).
  4. Fausse barre selon la revendication 1,
       caractérisée en ce que les éléments de contact (8) sont rectangulaires.
  5. Fausse barre selon la revendication 1 ou 2,
       caractérisée en ce que les éléments de contact (19, 20) sont cruciformes ou, dans la direction transversale, pluri-cruciformes.
  6. Fausse barre selon l'une ou plusieurs des revendications 1 à 5,
       caractérisée en ce que les feuilles métalliques (2 ou 13, 14 , 15, 16, 17) consistent en acier ressort.
  7. Fausse barre selon l'une ou plusieurs des revendications 1 à 6,
       caractérisée en ce que les éléments de contact (8 ou 19, 20) sont reliés aux feuilles métalliques (2 ou 13, 14, 15, 16, 17) par des rivets (9, 21).
  8. Fausse barre selon l'une ou plusieurs des revendications 1 à 7,
       caractérisée en ce que les feuilles métalliques (2 ou 13, 14, 15, 16, 17) sont fixées dans des fentes (3a, 18a), à la face inférieure de la tête de barre (3 ou 18).
EP89113111A 1988-08-13 1989-07-18 Fausse barre pour installations de coulée continue Expired - Lifetime EP0355393B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113111T ATE87518T1 (de) 1988-08-13 1989-07-18 Anfahrstrang fuer stranggiessanlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827582A DE3827582A1 (de) 1988-08-13 1988-08-13 Anfahrstrang fuer stranggiessanlagen
DE3827582 1988-08-13

Publications (3)

Publication Number Publication Date
EP0355393A2 EP0355393A2 (fr) 1990-02-28
EP0355393A3 EP0355393A3 (fr) 1991-04-10
EP0355393B1 true EP0355393B1 (fr) 1993-03-31

Family

ID=6360831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113111A Expired - Lifetime EP0355393B1 (fr) 1988-08-13 1989-07-18 Fausse barre pour installations de coulée continue

Country Status (7)

Country Link
US (1) US4926929A (fr)
EP (1) EP0355393B1 (fr)
JP (1) JPH0289543A (fr)
AT (1) ATE87518T1 (fr)
CA (1) CA1329976C (fr)
DE (2) DE3827582A1 (fr)
ES (1) ES2039767T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135042A (en) * 1990-11-23 1992-08-04 Gunther Behrends Self-supporting, flexible continuous casting starter bar

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458205B1 (de) * 1963-09-02 1971-04-22 Schloemann Ag Anfahrstrang fuer stranggiessanlagen
US3262162A (en) * 1964-01-24 1966-07-26 Mesta Machine Co Flexible dummy bar for continuous casting machines
US3485292A (en) * 1966-09-29 1969-12-23 Horst Grothe Universal dummy bar for continuous castings
US3451466A (en) * 1967-04-25 1969-06-24 United States Steel Corp Flexible starter bar for continuouscasting mold
US3603375A (en) * 1968-12-31 1971-09-07 United States Steel Corp Flexible starter bar for continuous castings
US3610321A (en) * 1970-01-20 1971-10-05 Georgy Lukich Khim Starter bar for a continuous casting plant
US3656538A (en) * 1970-12-30 1972-04-18 United States Steel Corp Flexible starter bar
FR2382960A1 (fr) * 1977-03-08 1978-10-06 Fives Cail Babcock Faux-lingot flexible pour installation de coulee continue courbe
FR2604643B1 (fr) * 1986-10-02 1989-01-20 Siderurgie Fse Inst Rech Mannequin de coulee continue curviligne

Also Published As

Publication number Publication date
US4926929A (en) 1990-05-22
DE58903936D1 (de) 1993-05-06
EP0355393A2 (fr) 1990-02-28
DE3827582A1 (de) 1990-02-15
ES2039767T3 (es) 1993-10-01
ATE87518T1 (de) 1993-04-15
JPH0289543A (ja) 1990-03-29
CA1329976C (fr) 1994-06-07
EP0355393A3 (fr) 1991-04-10

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