US3921706A - Starter bar for use in continuous casting plants - Google Patents

Starter bar for use in continuous casting plants Download PDF

Info

Publication number
US3921706A
US3921706A US509649A US50964974A US3921706A US 3921706 A US3921706 A US 3921706A US 509649 A US509649 A US 509649A US 50964974 A US50964974 A US 50964974A US 3921706 A US3921706 A US 3921706A
Authority
US
United States
Prior art keywords
starter bar
coupling
bar head
casting
starter
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
US509649A
Other languages
English (en)
Inventor
Horst Wiesinger
Gunter Holleis
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.)
Voestalpine AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3921706A publication Critical patent/US3921706A/en
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

Definitions

  • a coupling for providing a connection with the casting is insertable into a slit in the starter bar head and is detachably connectable with the starter bar head.
  • the coupling may e.g. be a rail or an l-beam.
  • the slit runs horizontally and parallel to the axes of the rollers transporting the starter bar and the casting, and widens to a recess. Rollers in the recess that form a support for the coupling, which is borne detachably and with a certain play in said slit, are arranged vertically.
  • ABSTRACT 6 Claims 4 Drawing Figures US. Patent Nov. 25, 1975 Sheet1of2' 3,921,706
  • the invention relates to a starter bar for use in continuous casting plants in which the starter bar has a head that closes the bottom of the mold a coupling that provides the connection with the casting, e.g. a rail or an I-beam, is insertable into a slit in the head and is detachably connectable with it.
  • a coupling that provides the connection with the casting, e.g. a rail or an I-beam, is insertable into a slit in the head and is detachably connectable with it.
  • the starter bar or the starter bar head is disengaged from the rail portions that are fused with the casting by lifting the entire starter bar off the transport roller path in the vertical direction.
  • a complicated lifting device has too be provided, e.g. a lifting device as described in Canadian Pat. No. 861, 392.
  • This lifting device comprises a number of carrier supports arranged between the rollers of the roller path and gripping the starter bar from below.
  • the starter bar head is hook-shaped and is connected with the, casting by means of a turning or swivel connection so that by turning or tilting the starterbar head the connection with the casting can be released (Swiss Pat. No. 475,049).
  • the starter bar or at least the starter bar head, which is articulately connected to said starter bar has to carry out a lifting, swivel or tilting movement in a vertical plane. Therefore, difficulties arise in receiving the starter bar.
  • storage boxes into which the starter bar is laid till the next casting procedure, must be provided above or below the roller path.
  • Such storage boxes are complicated and in many cases difficult to arrange. They impede the access to the roller path and/or to the starter bar. It is also a difficult procedure to disengage the starter bar head from the casting and a special machine is needed as is described e.g. in the German Offenlegungsschrift No. 2,120,694.
  • the invention aims at avoiding thesedisadvantages and difficulties. It is the object of the invention to provide a starter bar wherein it is connected tothe casting in a constructionally simple manner, wherein its head is easy to disengage, wherein no storage boxes for receiving the starter bar are necessary and wherein the machinery necessary for removing the starter bar into waiting position can be kept at a minimum.
  • This task is solved according to the invention in that in a starter bar of the above described type the slit runs horizontally and parallel in relation to the axes of the rollers transporting the starter bar and the casting, and in that the slit widensto a recess in which rollers are arranged vertically for forming a support for the coupling, which is borne in the slit detachably and with play.
  • the coupling acts together with a spring vertically arranged in the starter bar head to allow for a certain amount of play exclusively on the side facing the rollers for the transport of the casting and the starter bar.
  • the coupling be secured in position axially on the one side by a stop and on the opposite side by a detachable and swivable holding plate pressed against the coupling by means of a spring.
  • a detachable and swivable holding plate pressed against the coupling by means of a spring.
  • a transporting device be assigned to the transporting rollers for gripping the starter bar from below.
  • This device is shiftable horizontally and in parallel relation to the roller axes.
  • the transporting device comprises carrier supports and at least the carrier supports are shiftable in the vertical direction and in parallel relation to themselves by at least a small amount of play.
  • FIG. 1 is a top view of a starter bar of the invention resting upon a horizontal roller path and connected with a casting;
  • FIG. 2 shows a vertical section along line II-II of FIG. 3 of the connection between the starter bar head and the casting:
  • FIG. 3 illustrates a top view, partly in section and on an enlarged scale
  • FIG. 4 shows a section through a water-cooled mold with a starter bar head according to the invention before the beginning of casting.
  • FIG. 1 the casting l in this embodiment a slab of rectangular cross section is connected via a coupling 2 with an articulate starter bar 3.
  • the coupling 2 is cast into the casting l and is detachably fastened in the starter bar head 3.
  • Rollers of a roller path are denoted with 4. This roller path is arranged to follow an arcshaped strand guiding zone (not illustrated).
  • carrier supports 6, which are part of a starter bar shifting device (not illustrated either) are arranged.
  • the direction of movement of said carrier supports, denoted by the arrows 7, runs perpendicular to the horizontal transport direction 5 of the starter bar 3 and the casting 1.
  • the coupling 2 is formed by a rail portion whose head 8 is cast into the slab 1 and whose rail foot 9 is supported against rollers 11.
  • the rollers 11 are vertically arranged in a recess 10 of the starter bar head 3 and are freely rotatable about an axis 12. Distance bushings are denoted with 13.
  • a detachable portion 14 of the starter bar head 3' is secured to the head 3 by screws 15 so as to be removable in order to carry out the mounting and maintenance of the rollers 1 1.
  • a vertically shiftable ram 16 acting upon the rail foot 9 is arranged.
  • This ram by means of a pressure spring 17 supported by a pressure plate 18, presses the coupling 2 upward into the position shown in the drawing. Therefore, in the horizontal slit 10', which is connected with the recess 10 and serves for receiving the coupling 2, a play s of approx. 3 to 5 MM is formed.
  • the horizontal carrier supports 6 are actuated in the directions of the double arrow. When in the starting position, the carrier supports 6 lie below the starter bar 3 at a distance a. After lifting the starter bar 3 by a few mm it is shifted horizontallyand in parallel relation to itself in the direction of arrow 7. In so doing the rollers 11 roll on the rail foot 9 and practically no resistance on account of friction occurs, as is the case in known constructions in which the rails frequently become jammed in the slit.
  • a new coupling (FIG. 3) is inserted and is axially secured in its position by means of a holding plate 19 and a stop 21.
  • Plate 19 is swivable about a vertical axis 22 and has a tension spring secured to it. Subsequently, the starter bar 3 is again shifted towards the roller path and is lowered onto the rollers 4.
  • FIG. 4 denotes the water-cooled mold and 24 denotes the cavity for the cooling water.
  • the cooling water is supplied to and removed from the mold, respectively.
  • Reference number 27 indicates asbestos cords for sealing the gaps between the starter bar head and the mold, and reference number 28 indicates a layer of turning chips and scrap parts.
  • the starter bar 3 To use the starter bar 3 it together with the starter bar head 3 is first pushed into the mold 23.
  • asbestos cords 27, turning chips and/or scrap parts 28 the front side of the starter bar head 3 from which the coupling member 2 projects is covered and sealed.
  • the steel flowing from the tundish (not shown) into the mold 23 comes into contact with the layer 28 and solidifies immediately, welding only with the coupling member 2 and not with the front face of the starter bar head 3.
  • the strand 1 is extracted from the mold 23 most of the turning chip layer 28, inserted prior to casting, falls off and leaves the front face of the starter bar head 3 free.
  • a starter bar for use in a continous casting plant having rollers for transporting a casting comprising:
  • starter bar head attached to one end of said starter bar body, said starter bar head having a slit in it that runs horizontally and transverse to the longitudinal dimension of said starter bar body, the slit in said starter bar head opening into a wider recess in said starter bar head;
  • a coupling for connecting the casting with said starter bar head said coupling having one end adapted to be fused in the casting and the other end detachably connectable with said starter bar head, said other end of said coupling being horizontally insertable into the slit and recess of said starter bar head;
  • starter bar rollers arranged vertically in the recess of said starter bar head for supporting said coupling with play in the slit.
  • a starter bar for use in a continuous casting plant having rollers for transporting a casting comprising:
  • starter bar head attached to one end of said starter bar body, said starter bar head having a slit in it that runs horizontally and transverse to the longitudinal dimension of said starter bar body, the slit in said starter bar head opening into a wider recess in said starter bar head;
  • a coupling for connecting the casting with said starter bar head said coupling having one end adapted to 20 be fused in the casting and the other end detach ably connectable with said starter bar head, said 1 other end of said coupling being horizontally insertable into the slit and recess of said starter bar head;
  • starter bar rollers arranged vertically in therecess of said starter bar head for supporting said coupling with a certain play in the slit;
  • a starter bar for use in a continuous casting plant having rollers for transporting a casting comprising:
  • starter bar head attached to one end of said starter bar body, said starter bar head having a slit in.
  • a coupling for connecting the casting with said starter I bar head said coupling having one end'adapted to i be fused in the casting and the other end detachably connectable with said starter bar head, said other end of said coupling being horizontally insertable into the slit and recess of said starter bar head;
  • starter bar rollers arranged vertically in the recess'of said starter bar head for'supporting said coupling with play in the slit;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Hydroponics (AREA)
  • Casting Devices For Molds (AREA)
US509649A 1973-10-19 1974-09-26 Starter bar for use in continuous casting plants Expired - Lifetime US3921706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT887273A AT328119B (de) 1973-10-19 1973-10-19 Vorrichtung fur stranggiessanlagen

Publications (1)

Publication Number Publication Date
US3921706A true US3921706A (en) 1975-11-25

Family

ID=3609247

Family Applications (1)

Application Number Title Priority Date Filing Date
US509649A Expired - Lifetime US3921706A (en) 1973-10-19 1974-09-26 Starter bar for use in continuous casting plants

Country Status (13)

Country Link
US (1) US3921706A (fr)
JP (1) JPS5223860B2 (fr)
AT (1) AT328119B (fr)
BE (1) BE821096A (fr)
BR (1) BR7408688D0 (fr)
CH (1) CH580453A5 (fr)
DE (1) DE2446146A1 (fr)
ES (1) ES430954A1 (fr)
FR (1) FR2248102B1 (fr)
GB (1) GB1482174A (fr)
IT (1) IT1019407B (fr)
SE (1) SE392408B (fr)
SU (1) SU535890A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086955A (en) * 1975-12-18 1978-05-02 Fives-Cail Babcock Head for a starter bar used in the continuous casting of molten metal
US4113003A (en) * 1975-12-12 1978-09-12 Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft Starter bar head arrangement
DE2935395A1 (de) * 1979-09-01 1981-03-12 Proizvodstvennoe ob"edinenie Uralmaš, Sverdlovsk Anfahrstrang fuer eine kontinuierliche giessanlage zumgiessen von runden hohlbloecken.
CN102380590A (zh) * 2011-11-14 2012-03-21 振石集团东方特钢股份有限公司 浇注板坯不锈钢的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810304C1 (fr) * 1988-03-24 1989-12-07 Mannesmann Ag, 4000 Duesseldorf, De

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239894A (en) * 1963-03-06 1966-03-15 United States Steel Corp Starter-bar head with make-and-break joint
US3593776A (en) * 1968-10-30 1971-07-20 Soule Steel Co Starter bar having a frangible coupling
US3602290A (en) * 1968-08-23 1971-08-31 Mclouth Steel Corp Dummy bar for continuous casting
US3610321A (en) * 1970-01-20 1971-10-05 Georgy Lukich Khim Starter bar for a continuous casting plant
US3627017A (en) * 1968-04-29 1971-12-14 Concast Ag Dummy bar head for continuous casting and method of using same
US3627016A (en) * 1968-09-30 1971-12-14 Concast Ag Method for conducting a dummy bar into a mold
US3717198A (en) * 1970-01-27 1973-02-20 Concast Ag Adjustable dummy bar head for continuous casting

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239894A (en) * 1963-03-06 1966-03-15 United States Steel Corp Starter-bar head with make-and-break joint
US3627017A (en) * 1968-04-29 1971-12-14 Concast Ag Dummy bar head for continuous casting and method of using same
US3602290A (en) * 1968-08-23 1971-08-31 Mclouth Steel Corp Dummy bar for continuous casting
US3627016A (en) * 1968-09-30 1971-12-14 Concast Ag Method for conducting a dummy bar into a mold
US3593776A (en) * 1968-10-30 1971-07-20 Soule Steel Co Starter bar having a frangible coupling
US3610321A (en) * 1970-01-20 1971-10-05 Georgy Lukich Khim Starter bar for a continuous casting plant
US3717198A (en) * 1970-01-27 1973-02-20 Concast Ag Adjustable dummy bar head for continuous casting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113003A (en) * 1975-12-12 1978-09-12 Vereinigte Osterreichische Eisen- Und Stahlwerke - Alpine Montan Aktiengesellschaft Starter bar head arrangement
US4086955A (en) * 1975-12-18 1978-05-02 Fives-Cail Babcock Head for a starter bar used in the continuous casting of molten metal
DE2935395A1 (de) * 1979-09-01 1981-03-12 Proizvodstvennoe ob"edinenie Uralmaš, Sverdlovsk Anfahrstrang fuer eine kontinuierliche giessanlage zumgiessen von runden hohlbloecken.
CN102380590A (zh) * 2011-11-14 2012-03-21 振石集团东方特钢股份有限公司 浇注板坯不锈钢的方法
CN102380590B (zh) * 2011-11-14 2013-06-26 振石集团东方特钢股份有限公司 浇注板坯不锈钢的方法

Also Published As

Publication number Publication date
FR2248102B1 (fr) 1979-02-16
CH580453A5 (fr) 1976-10-15
DE2446146A1 (de) 1975-04-24
BR7408688D0 (pt) 1975-09-23
FR2248102A1 (fr) 1975-05-16
BE821096A (fr) 1975-02-03
AT328119B (de) 1976-03-10
IT1019407B (it) 1977-11-10
SE392408B (sv) 1977-03-28
ES430954A1 (es) 1976-10-16
JPS50157224A (fr) 1975-12-19
SU535890A3 (ru) 1976-11-15
GB1482174A (en) 1977-08-10
ATA887273A (de) 1975-05-15
SE7411554L (fr) 1975-04-21
JPS5223860B2 (fr) 1977-06-27

Similar Documents

Publication Publication Date Title
JP3742656B2 (ja) ストリップ鋳造のための非接触の吸熱部
US3921706A (en) Starter bar for use in continuous casting plants
US3814169A (en) Dummy bar handling system
US3433287A (en) Dummy bar device for continuous casting machine
GB1580239A (en) Continuous casting plant
US3464482A (en) Continuous casting
US3366162A (en) Apparatus for guiding a strand in a continuous casting machine
JPS5717358A (en) Ingot drawing out equipment for continuous casting instrument
US3429366A (en) Universal starting bar
JPS5758957A (en) Starting method for direct rolling type continuous casting machine
US5613547A (en) Nozzle with a baffle for a caster and an associated method of casting molten metal
BR102024005708A2 (pt) Cabeça quente contendo compartimento com cola
JPS6021169A (ja) 連続鋳造用ノズル
US3603376A (en) Apparatus for bending continuous cast slabs
EP0183855A4 (fr) Moule permettant de produire par coulee horizontale continue des pieces metalliques coulees a partir d'un metal en fusion.
GB2029294A (en) Method of changing the cross sectional format of a strand being continuously cast
JPS5788958A (en) Continuous casting method
Schruff et al. Dry Casting of Boron- and Titanium-Alloyed Steel Grades on a Billet Caster
Capotosti et al. Instrumented mold for breakout safety and assurance of product surface quality in stainless steel slab casting
Dindino et al. Casting Aluminum Fine-Grain Billets
JPS5937319Y2 (ja) 水平連続鋳造装置におけるダミ−バ−
Madill Improvements in Mould Powder Supply, Performance and the Mechanism of Slag Entrapment in the Solidifying Strand During Casting
NEMOTO Development of Continuous Casting Operation
JPS5557359A (en) Pouring device of continuous casting and rolling equipment
Thorner et al. Vertical or Curved Continuous-Casting Machine for Steel