EP0912275B1 - Vorrichtung zum spannen einer giesstisches einer vertikal- stranggiessmaschine für das giessen von roheisenwerkstücken, insbesonderen rohren - Google Patents

Vorrichtung zum spannen einer giesstisches einer vertikal- stranggiessmaschine für das giessen von roheisenwerkstücken, insbesonderen rohren Download PDF

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Publication number
EP0912275B1
EP0912275B1 EP97933732A EP97933732A EP0912275B1 EP 0912275 B1 EP0912275 B1 EP 0912275B1 EP 97933732 A EP97933732 A EP 97933732A EP 97933732 A EP97933732 A EP 97933732A EP 0912275 B1 EP0912275 B1 EP 0912275B1
Authority
EP
European Patent Office
Prior art keywords
die block
clamping device
casting
jacks
casting table
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
EP97933732A
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English (en)
French (fr)
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EP0912275A1 (de
Inventor
Denis Girardin
Fabien Arnould
Yvan Morcel
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.)
Pont a Mousson SA
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Pont a Mousson SA
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Filing date
Publication date
Application filed by Pont a Mousson SA filed Critical Pont a Mousson SA
Publication of EP0912275A1 publication Critical patent/EP0912275A1/de
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B22D11/14—Plants for continuous casting
    • B22D11/145—Plants for continuous casting for upward casting
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting

Definitions

  • the present invention relates to the casting of metals into fusion, and more particularly to the vertical continuous casting of parts of metal, in particular of tubes, of cast iron. Although it applies to casting of different types of metal parts, it is particularly advantageous for casting thin cast iron tubes.
  • thin tubes applies to a tube with a low thickness / diameter ratio, less than 10 percent, rather than the thickness considered in isolation.
  • the invention relates more precisely to a casting machine vertical continuous, according to the preamble of claim 1, which is based on WO-A-94/26 444, along a vertical axis of extraction, of cast iron tubes, comprising a die block aligned along the vertical extraction axis and a liquid iron supply device feeding the die, machine in which at least one seal is disposed between the outlet of the device supply and entry of the sector.
  • the present invention aims to overcome these various drawbacks by proposing a casting machine in which sealing against liquid metal is ensured both in the ramp-up phase and in the constant high temperature operating phase.
  • the subject of the invention is a device for clamping a casting table of a vertical continuous casting machine, along an axis vertical extraction, of parts, in particular of tubes, in cast iron, the table casting comprising on the one hand a die block aligned along the vertical axis extraction, and secondly a device for supplying liquid iron supplying the die block, at least one seal being disposed between the outlet of the liquid iron supply device and the die block, characterized in that it comprises constant force clamping means, in parallel to the vertical extraction axis, from the die block against the exit of the supply of liquid iron to tighten the seals.
  • the invention also relates to a casting table of a vertical continuous casting machine, along a vertical axis (X-X) of extraction, of parts, in particular tubes, of cast iron, the casting table comprising on the one hand, a die block aligned along the vertical axis (X-X) of extraction, and secondly, a device for supplying liquid iron supplying the die block, at least one seal being disposed between the outlet of the device for supplying liquid iron and the die block, characterized in that it includes a clamping device as defined above.
  • Figure 1 a continuous casting table 1 vertical ascending of parts, in particular of T tubes, in cast iron.
  • This table casting includes a device 3 for supplying liquid iron and a die block 5 powered by its lower end by this supply device 3.
  • the tube T is extracted from the die block 5 by non-extracting means represented, upwards, along the vertical X-X extraction axis.
  • the meaning of the extraction force is represented by an arrow F.
  • the device 3 for supplying liquid iron is placed on a chassis 6 and secured against lateral and vertical displacement thereon by vertical tie rods 7 and horizontal crosspieces 8. It includes a siphon 9 in the shape of a U made of a single piece of molded refractory concrete.
  • This siphon 9 includes a liquid iron supply channel 10 formed by a vertical downward portion 10A of entry of the molten iron, a horizontal part (not visible in the figures) and a vertical part 10B liquid iron outlet, directed upwards.
  • a base heater 11 is interposed between the die block 5 and the outlet of the siphon 9. Sealing of molten metal is ensured by two seals annulars 12A and 12B, a first 12A disposed between the outlet of the siphon 9 and the underside of the heating base 11, and a second 12B disposed between the upper face of the heating base 11 and the lower face of the die block 5.
  • the siphon 9 and the heating base 11 are surrounded a carcass 13 in the thickness of which are wound windings inductors 14. These inductor windings 14 are supplied with current electric by an external current generator not shown for maintain molten iron by induction heating.
  • the die block 5 is fixedly mounted in a retractable support 15 tray-shaped.
  • This die block includes a cooling block 17 connected to a coolant circuit by 17A inlet pipes and output 17B.
  • Block 17 has an extension on its upper face of reduced diameter. It is received in a conjugate housing 15A of the support 15 with vertical axis Y-Y and is fixed to it by means of a crown of axial screws 15B ( Figure 2).
  • the relative position of the support 15 relative to the chassis 6 is determined by two columns 18 directed downwards, fixed to the support 15 diametrically opposite with respect to the die block 5, as the shows figure 2.
  • figure 3 shows that each baluster 18 is guided in an associated ball bushing 19 which is fixed to the chassis 6.
  • the relative position of the support 15 relative to the chassis 6 and therefore the relative position of the die block 5 with respect to the chassis 6, are precisely defined in a plane perpendicular to the vertical axis X-X extraction, while the support-chassis distance can be adjusted parallel to the X-X axis.
  • each cylinder 21 has a rod 22 of which the free end 23 is fixed by a pin 24 in a clevis 25 integral of the chassis 6.
  • Each pin 24 is stopped in the yoke 25 by pins (not shown) so that the support 15 can easily be disassembled from the chassis 6.
  • the body 21A of the jacks 21 is fixed by a flange 21B on the upper face of the plate 15 so as to be out of reach of the field induction generated by the inductor windings 14.
  • each fluid cylinder 21 is connected by a pipe 26, 27 to a common pipe 29.
  • This pipe common 29 is connected to a hydraulic unit 31 for regulating the clamping force of each cylinder, shown schematically.
  • this hydraulic unit is also mounted on the chassis 6.
  • the clamping force exerted on the seals 12A and 12B corresponds to the clamping force exerted by the jacks 21 to pull the yokes 25 in the direction of the support 15. Thanks to the fact that two cylinders connected to the hydraulic unit 31 by a common pipe 29, the applied clamping force is identical for each cylinder. In addition, once regulated, it is constant despite expansion phenomena which occur at the level of the heating base 11, and despite the phenomena of creep of the joints and adhesion of the tube T to the die, this thanks to the principle hydraulic operation.
  • the clamping arrangement by hydraulic cylinders also acts as a "safety fuse". Indeed, when the extraction force of the tube T becomes greater than the force applied by the jacks, the elements of the die block tend to dissociate in the direction of extraction of the tube T. This results in loosening of the seals and a leakage of the liquid metal towards outside, and the machine stops without damage for the installation of tube production.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • General Induction Heating (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (7)

  1. Spannvorrichtung für einen Gießtisch einer Maschine zum senkrechten Strangguß von Teilen, insbesondere Rohren (T), aus Roheisen gemäß einer senkrechten Entnahmeachse (X-X), wobei der Gießtisch einerseits eine Extrudierdüse (5), die fluchtend mit der senkrechten Entnahmeachse (X-X) angeordnet ist, und andererseits eine Zufuhrvorrichtung (3) von flüssigem Roheisen aufweist, die die Extrudierdüse (5) speist, wobei mindestens eine Dichtung (12A; 12B) zwischen dem Ausgang der Zufuhrvorrichtung (3) von flüssigem Roheisen und der Extrudierdüse (5) angeordnet ist, dadurch gekennzeichnet, daß sie Mittel (15, 6, 21) aufweist, um die Extrudierdüse (5) parallel zur senkrechten Entnahmeachse (X-X) mit konstanter Kraft gegen den Ausgang der Zufuhrvorrichtung (3) von flüssigem Roheisen anzupressen, um die Dichtung(en) (12A; 12B) zusammenzupressen.
  2. Spannvorrichtung für einen Maschinen-Gießtisch nach Anspruch 1, dadurch gekennzeichnet, daß die Anpreßmittel einen Träger (15) für die Extrudierdüse (5), der gemäß einer im wesentlichen parallel zur senkrechten Entnahmeachse (X-X) verlaufenden Achse verschiebbar ist, ein Gestell (6), auf dem die Zufuhrvorrichtung (3) von flüssigem Roheisen angeordnet ist, und mindestens zwei gleichmäßig um die Extrudierdüse (5) herum verteilte Fluidzylinder (21) aufweisen, wobei jeder Zylinder (21) sowohl mit dem Träger (15) als auch mit dem Gestell (6) verbunden ist und jeder Zylinder (21) mittels einer Fluidleitung (26, 27) mit einer Regelungseinrichtung (31) für den Anpreßdruck jedes Zylinders verbunden ist.
  3. Spannvorrichtung für einen Gießtisch einer Maschine nach Anspruch 2, dadurch gekennzeichnet, daß die Fluidleitungen (26, 27) der Zylinder (21) in einer gemeinsamen Fluidleitung (29) vereinigt sind, und daß diese gemeinsame Leitung (29) mit der Regelungseinrichtung (31) für den Anpreßdruck verbunden ist.
  4. Spannvorrichtung für einen Gießtisch einer Maschine nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Fluidzylinder (21) Hydraulikzylinder sind.
  5. Spannvorrichtung für einen Gießtisch einer Maschine nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Fluidzylinder (21) Pneumatikzylinder sind.
  6. Spannvorrichtung für einen Gießtisch einer Maschine nach einem beliebigen der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Körper der Zylinder (21) gänzlich außerhalb des Raums angeordnet sind, der zwischen den beiden waagrechten Ebenen liegt, die die Erregerwicklungen (14) begrenzen.
  7. Gießtisch einer Maschine zum senkrechten Strangguß von Teilen, insbesondere Rohren (T), aus Roheisen gemäß einer senkrechten Entnahmeachse (X-X), wobei der Gießtisch einerseits eine Extrudierdüse (5), die zur senkrechten Entnahmeachse (X-X) fluchtend angeordnet ist, und andererseits eine Zufuhrvorrichtung (3) von flüssigem Roheisen aufweist, die die Extrudierdüse (5) speist, wobei mindestens eine Dichtung (12A; 12B) zwischen dem Ausgang der Zufuhrvorrichtung (3) von flüssigem Roheisen und der Extrudierdüse (5) angeordnet ist, dadurch gekennzeichnet, daß er eine Spannvorrichtung gemäß einem beliebigen der Ansprüche 1 bis 6 aufweist.
EP97933732A 1996-07-17 1997-07-11 Vorrichtung zum spannen einer giesstisches einer vertikal- stranggiessmaschine für das giessen von roheisenwerkstücken, insbesonderen rohren Expired - Lifetime EP0912275B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9608960 1996-07-17
FR9608960A FR2751250B1 (fr) 1996-07-17 1996-07-17 Dispositif de bridage d'une table de coulee d'une machine de coulee continue verticale de pieces, en particulier de tubes, en fonte
PCT/FR1997/001300 WO1998003289A1 (fr) 1996-07-17 1997-07-11 Dispositif de bridage d'une table de coulee d'un machine de coulee continue verticale de pieces, en particulier de tubes, en fonte

Publications (2)

Publication Number Publication Date
EP0912275A1 EP0912275A1 (de) 1999-05-06
EP0912275B1 true EP0912275B1 (de) 2000-10-18

Family

ID=9494156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97933732A Expired - Lifetime EP0912275B1 (de) 1996-07-17 1997-07-11 Vorrichtung zum spannen einer giesstisches einer vertikal- stranggiessmaschine für das giessen von roheisenwerkstücken, insbesonderen rohren

Country Status (14)

Country Link
US (1) US6192971B1 (de)
EP (1) EP0912275B1 (de)
JP (1) JP2001507991A (de)
CN (1) CN1072064C (de)
AU (1) AU3698197A (de)
BR (1) BR9710481A (de)
CA (1) CA2259511C (de)
CO (1) CO4700496A1 (de)
DE (1) DE69703354T2 (de)
EG (1) EG21242A (de)
ES (1) ES2151289T3 (de)
FR (1) FR2751250B1 (de)
RU (1) RU2166406C2 (de)
WO (1) WO1998003289A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938673B1 (en) 2003-07-24 2005-09-06 Hayes Lemmerz International, Inc. Safety block device for use in a press device
CN105689668A (zh) * 2016-03-13 2016-06-22 安徽鑫旭新材料股份有限公司 一种防止结晶器堵塞的铜材上引连铸机
CN110976827B (zh) * 2019-12-20 2021-06-25 安徽宏华铸造有限公司 一种浇铸装置的对准机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1357949A (fr) * 1963-05-16 1964-04-10 Amco Industrieofenbau G M B H Dispositif permettant de mouler des profilés métalliques
FR2523006A1 (fr) * 1982-03-12 1983-09-16 Pont A Mousson Filiere tubulaire pour la coulee continue d'un tube, a paroi mince, en fonte
FR2548935B1 (fr) * 1983-07-12 1986-07-11 Pont A Mousson Procede et installation pour la coulee continue d'un tuyau en fonte a emboitement
FR2574328B1 (fr) * 1984-12-07 1987-01-09 Pont A Mousson Dispositif d'alimentation rotative en fonte liquide d'une installation de coulee continue verticale d'un tuyau en fonte a graphite speroidal
FR2705259B1 (fr) * 1993-05-19 1995-07-07 Pont A Mousson Dispositif d'alimentation en métal en fusion, notamment en fonte, d'une machine de coulée, et installation de coulée intégrant ce dispositif d'alimentation.

Also Published As

Publication number Publication date
RU2166406C2 (ru) 2001-05-10
EG21242A (en) 2001-04-30
CN1072064C (zh) 2001-10-03
AU3698197A (en) 1998-02-10
CN1225599A (zh) 1999-08-11
FR2751250A1 (fr) 1998-01-23
BR9710481A (pt) 1999-08-17
ES2151289T3 (es) 2000-12-16
FR2751250B1 (fr) 1998-08-21
WO1998003289A1 (fr) 1998-01-29
DE69703354D1 (de) 2000-11-23
CA2259511C (fr) 2001-09-11
CA2259511A1 (fr) 1998-01-29
US6192971B1 (en) 2001-02-27
CO4700496A1 (es) 1998-12-29
DE69703354T2 (de) 2001-03-01
JP2001507991A (ja) 2001-06-19
EP0912275A1 (de) 1999-05-06

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