EP0035088A2 - Abzugsvorrichtung für einen Startstrang beim Stranggiessen - Google Patents

Abzugsvorrichtung für einen Startstrang beim Stranggiessen Download PDF

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Publication number
EP0035088A2
EP0035088A2 EP80830056A EP80830056A EP0035088A2 EP 0035088 A2 EP0035088 A2 EP 0035088A2 EP 80830056 A EP80830056 A EP 80830056A EP 80830056 A EP80830056 A EP 80830056A EP 0035088 A2 EP0035088 A2 EP 0035088A2
Authority
EP
European Patent Office
Prior art keywords
arm
billet
haulage
casting
continuous casting
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Withdrawn
Application number
EP80830056A
Other languages
English (en)
French (fr)
Other versions
EP0035088A3 (de
Inventor
Ferruccio Sclippa
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.)
SIMAC SpA
Original Assignee
SIMAC SpA
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 SIMAC SpA filed Critical SIMAC SpA
Publication of EP0035088A2 publication Critical patent/EP0035088A2/de
Publication of EP0035088A3 publication Critical patent/EP0035088A3/de
Withdrawn legal-status Critical Current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
    • B22D11/085—Means for storing or introducing the starter bars in the moulds

Definitions

  • the invention relates to a draft gear of the billet at the beginning of the casting in continuous casting plants.
  • Draft gears of the billet in continuous casting plants are well known in prior art.
  • the said draft gears in continuous casting plants for the production of for example billets, blooms, slabs etc... generally consist in a mobile chain with an end plug commonly called “the false billet” movable along the continuous casting extraction pathway which is therefore destined to run along the said pathway downstream from the casting box to begin the continuous casting and then withdrawn progressively with the feeding of the downstream casting.
  • the haulage of the said false billet occurs normally by means of the utilisation of a draught unit placed at the beginning on the tangency of the curve, outside the cooling chamber.
  • the whole of the false billet presents a considerable length (about 8-10 mt.) and so equal to 90 * of the curve plus about 1 mt. in connection of the bending radius of the casting confer- ming that the said chain occupies a remarkable lot of room in length when its extraction from its pathway is completed; in this case so as not to interfere with the casting line, the said chain must be raised, or moved sideways, or moved underneath the said pathway of the casting, or it must be made to continue in retraction sending it forward into a ground tunnel as stated before.
  • the scope of this invention is the realisation of a draft gear of the billet in which the haulage chain is totally eliminated or other similar devices to achieve a plant less costly, more simple, and functional, subject to minor use and not in need of an eccessively obstructional chain.
  • the device of the said invention consists essentially in a haulage apparatus formed by an arm rotating around a determined point of rotation fixed or mobile in.which the end of this said arm results connectable to the end plug of the continuous casting billet and is able in its rotation to drag the billet continuously formed in the casting box, with its attachment point along the casting extraction pathway to then, once arrived at the point of- finished haulage, unhook itself automatically moving itself outside the feeding pathway of the billet; being provided with drive means for driving the said arm to lead into traction and controlled feeding, the ends of the said arm hooked onto the said billet from the moment of hooking until the moment of unhooking.
  • the new device substitutes the said "false billet" and is a very simple one in which a haulage arm is alone and positioned on a fixed rotational haulage centre, whilst it is understood that the arm could be articulated (for example built from two arms jointed between themselves), and/or, the centre of rotation of the arm itself or of half-arms could not be fixed, for example in its turn undergo a controlled movement on a truck.
  • the haulage arm is referred to as n. 1 and in a continued line represents the starting position of working or initial casting therefore the starting position of haulage of the end plug 2 of the continuous casting billet 17.
  • the arm 1 results attached in a fixed " position on a driving shaft 18 operated by a screwed reduction gear without end 3 the which in its turn receives its movement from an epicycloidal reducer 4 which is primarily operated by a direct current motor or hydraulic motor 5 at variable speed.
  • the free rotational end of the arm 1 presents in this embodiment by a support bracket 6, an interchangeable haulage arm 7 the which is complete with a hooking eyelet 8 to hook itself to a hooking-up system 9 provided behind the end plug 2.
  • the apparatus obviously results installed and works under context of the casting plan 10 where in the specific case the curve casting box 11 is supported (but it could even be straight). In the case for example of a straight casting box (not illustrated) the haulage support 7 on the end of the arm 1 could even be jointed for example with the application of a further intermediate articulation (not illustrated in the figure).
  • FIG. 1 schematically represented is the position of the oscillation device of the casting box 12 and of the billet supporting rollers 13; the continuous casting chamber presents also a closing wall chamber 14 whilst before the closing wall is provided a pair of rollers of a straightening action 15 and on the exit from the chamber is provided a draught and straightening unit by haulage rollers 16', 16".
  • the casting pathways can be several, placed side-by-side, and obviously the haulage arms 1 can be several, one for each pathway, destined to haul each billet in continuous casting 17.
  • the haulage arm 1 results substantially oriented in a vertical position above the height of the first pair of haulage rollers 16' of draught and straightening unit and that is to understand the structure and working of the device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP80830056A 1980-03-04 1980-07-16 Abzugsvorrichtung für einen Startstrang beim Stranggiessen Withdrawn EP0035088A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT83328/80A IT1141781B (it) 1980-03-04 1980-03-04 Dispositivo di traino della billetta negli impianti a colata continua
IT8332880 1980-03-04

Publications (2)

Publication Number Publication Date
EP0035088A2 true EP0035088A2 (de) 1981-09-09
EP0035088A3 EP0035088A3 (de) 1981-09-16

Family

ID=11320205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80830056A Withdrawn EP0035088A3 (de) 1980-03-04 1980-07-16 Abzugsvorrichtung für einen Startstrang beim Stranggiessen

Country Status (2)

Country Link
EP (1) EP0035088A3 (de)
IT (1) IT1141781B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131453A (en) * 1989-04-24 1992-07-21 Concast Standard Ag Modular continuous casting apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1493639A (fr) * 1966-07-18 1967-09-01 Creusot Forges Ateliers Dispositif de dégagement d'un demi-produit cour dans une machine de coulée continue à cintrage des demi-produits coulés
US3628595A (en) * 1969-10-22 1971-12-21 Koppers Co Inc Pivotally mounted starter bar in a continuous casting machine
CH537223A (de) * 1971-08-06 1973-05-31 Concast Ag Vorrichtung für die Zuführung eines kurzen Anfahrstranges aus der Strangbahn in den Kokillenbereich
DE2714338A1 (de) * 1977-03-31 1978-10-05 Demag Ag Stranggiessvorrichtung, insbesondere fuer knueppelstraenge aus stahl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1493639A (fr) * 1966-07-18 1967-09-01 Creusot Forges Ateliers Dispositif de dégagement d'un demi-produit cour dans une machine de coulée continue à cintrage des demi-produits coulés
US3628595A (en) * 1969-10-22 1971-12-21 Koppers Co Inc Pivotally mounted starter bar in a continuous casting machine
CH537223A (de) * 1971-08-06 1973-05-31 Concast Ag Vorrichtung für die Zuführung eines kurzen Anfahrstranges aus der Strangbahn in den Kokillenbereich
DE2714338A1 (de) * 1977-03-31 1978-10-05 Demag Ag Stranggiessvorrichtung, insbesondere fuer knueppelstraenge aus stahl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131453A (en) * 1989-04-24 1992-07-21 Concast Standard Ag Modular continuous casting apparatus

Also Published As

Publication number Publication date
EP0035088A3 (de) 1981-09-16
IT1141781B (it) 1986-10-08
IT8083328A0 (it) 1980-03-04

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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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Effective date: 19820823

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Inventor name: SCLIPPA, FERRUCCIO