EP0912275A1 - 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

Info

Publication number
EP0912275A1
EP0912275A1 EP97933732A EP97933732A EP0912275A1 EP 0912275 A1 EP0912275 A1 EP 0912275A1 EP 97933732 A EP97933732 A EP 97933732A EP 97933732 A EP97933732 A EP 97933732A EP 0912275 A1 EP0912275 A1 EP 0912275A1
Authority
EP
European Patent Office
Prior art keywords
die block
clamping
machine
extraction
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.)
Granted
Application number
EP97933732A
Other languages
English (en)
French (fr)
Other versions
EP0912275B1 (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
Original Assignee
Pont a Mousson SA
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 Pont a Mousson SA filed Critical Pont a Mousson SA
Publication of EP0912275A1 publication Critical patent/EP0912275A1/de
Application granted granted Critical
Publication of EP0912275B1 publication Critical patent/EP0912275B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B22D11/14—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

  • Clamping device for a casting table of a vertical continuous casting machine for castings, in particular tubes.
  • the present invention relates to the casting of molten metals, and more particularly to the continuous vertical casting of metal parts, in particular tubes, of cast iron. Although it applies to the casting of different types of metal parts, it is particularly advantageous for the casting of thin cast iron tubes.
  • thin tubes applies to a tube whose thickness / diameter ratio is low, less than 10 percent, rather than to the thickness considered in isolation. self
  • the invention relates more precisely to a continuous vertical casting machine, along a vertical axis of extraction, of cast iron tubes, comprising a die block aligned along the vertical axis of extraction and a device for supplying liquid iron supplying the die, machine in which at least one seal is arranged between the outlet of the supply device and the inlet of the die
  • Difficulties of the same order can result from the creep of the joints over time, and also from phenomena of adhesion to the die of the tube during manufacture.
  • the present invention aims to overcome these various drawbacks by proposing a casting machine in which the sealing with liquid metal is ensured both in the ramp-up phase and in the operating phase at constant high temperature.
  • the subject of the invention is a device for clamping a casting table of a vertical continuous casting machine, along a vertical axis of extraction, of parts, in particular tubes, of cast iron, the table casting system comprising on the one hand a die block aligned along the vertical extraction axis, and on the other hand a device for supplying liquid iron supplying the die block, at least one seal being arranged between the outlet of the liquid iron supply device and the die block, characterized in that it comprises constant force clamping means, parallel to the vertical axis of extraction, of the die block against the exit of the supply device liquid iron to tighten the seals.
  • the clamping means comprise a support for the die block displaceable along an axis substantially parallel to the vertical extraction axis, a frame on which the liquid iron supply device is placed, and at least two fluid jacks, regularly distributed around the die block, each cylinder being connected to both said support and said chassis, and each cylinder being connected via a fluid line to a unit for regulating the clamping force of each cylinder,
  • the fluid lines of the cylinders are joined together in a common fluid line, and this common line is connected to the clamping force regulation unit,
  • the fluid cylinders are hydraulic cylinders
  • the fluid cylinders are pneumatic cylinders
  • the cylinders' bodies are entirely arranged outside the space between the two horizontal planes which limit the inductor windings.
  • the invention also relates to a casting table of a vertical continuous casting machine, along a vertical axis (XX) of extraction, of parts, in particular of tubes, made of cast iron, the casting table comprising d 'on the one hand a die block aligned along the vertical axis (XX) of extraction, and on the other hand a device for supplying liquid iron supplying the die block, at least one seal being arranged between the outlet the liquid iron supply device and the die block, characterized in that it comprises a clamping device as defined above.
  • FIG. 1 is a side view of a casting table according to the invention, with a first cutaway at the inlet of the device for supplying liquid iron and a second at the outlet of this device,
  • Figure 2 is a top view of the casting table, along arrow II of Figure 1; and Figure 3 is a cross-sectional view along line ill-III of Figure 2
  • FIG. 1 a table 1 for ascending vertical continuous casting of parts, in particular of T tubes, in cast iron.
  • This casting table comprises a device 3 for supplying liquid cast iron and a die block 5 fed by its lower end. , by this supply device
  • the tube T is extracted from the die block 5 by extraction means not shown, upwards, along the vertical axis XX of extraction
  • the direction 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 comprises a U-shaped siphon 9 made of a single piece of refractory molded concrete.
  • This siphon 9 comprises a liquid iron supply channel 10 formed by a vertical downward part 10A for entering the molten iron, a horizontal part (not visible in the figures) and a vertical part 10B for leaving the liquid iron , directed upwards.
  • a heating base 1 1 is interposed between the filter block 5 and the outlet of the siphon 9.
  • Sealing of the molten metal is provided by two annular seals 12A and 12B, a first 12A disposed between the outlet of the siphon 9 and the underside of the heating base 1 1, and a second 12B disposed between the top face of the heating base 1 1 and the underside of the filter block 5.
  • the siphon 9 and the heating base 1 1 are surrounded by a carcass 13 in the thickness of which are inductor windings 14. These inductor windings 14 are supplied with electric current 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 in the form of a tray.
  • This die block includes a cooling block 17 connected to a circuit of a cooling fluid by pipes 17A of inlet and 17B of outlet.
  • Block 17 has on its upper face an extension of reduced diameter. It is received in a conjugate housing 15A of the support 15 with a vertical axis Y-Y and is fixed there by means of a ring 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 in a diametrically opposite manner with respect to the die block 5, as shown in Figure 2.
  • Figure 3 shows that each column 18 is guided in a ball socket 19 associated which is fixed to the chassis 6 Due to the use of balusters 18 cooperating with ball bushings 19, the relative position of the support 15 relative to the chassis 6 and therefore the relative position of the die block 5 relative to the chassis 6, are precisely defined in a plane perpendicular to the vertical extraction axis XX, while the support-chassis distance can be adjusted parallel to the axis XX.
  • each cylinder 21 has a rod 22 whose free end 23 is fixed by a pin 24 in a yoke 25 secured to the frame 6
  • Each pin 24 is stopped in the yoke 25 by pins (not shown) so that the support 15 can easily be removed from the chassis 6.
  • the body 21 A of the jacks 21 is fixed by a flange 21 B on the upper face of the plate 15 so as to be out of reach of the generated induction field by the inductor windings 14
  • each fluid cylinder 21 is connected by a pipe 26, 27 to a common pipe 29
  • This common pipe 29 is connected to a hydraulic unit 31 for regulating the clamping force of each jack, shown schematically Advantageously, this hydraulic unit is also mounted on the chassis 6
  • a certain clamping force of the jacks is adjusted by means of the regulating unit 31.
  • the clamping force exerted on the seals 12A and 12B corresponds to the force 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 jacks connected to the hydraulic unit 31 by a common pipe 29 are used, the clamping force applied is identical for each cylinder. In addition, once adjusted, it is constant despite the phenomena of expansion which occur at the level of the heating base 1 1, 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".
  • 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 leak of the liquid metal to the outside, and the machine stops without damage to the installation for producing tubes.

Landscapes

  • 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)
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 true EP0912275A1 (de) 1999-05-06
EP0912275B1 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.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9803289A1 *

Also Published As

Publication number Publication date
RU2166406C2 (ru) 2001-05-10
EG21242A (en) 2001-04-30
CN1072064C (zh) 2001-10-03
EP0912275B1 (de) 2000-10-18
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

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