EP0453466A1 - Appareil de moulage horizontal en coulee continue - Google Patents

Appareil de moulage horizontal en coulee continue

Info

Publication number
EP0453466A1
EP0453466A1 EP19900901638 EP90901638A EP0453466A1 EP 0453466 A1 EP0453466 A1 EP 0453466A1 EP 19900901638 EP19900901638 EP 19900901638 EP 90901638 A EP90901638 A EP 90901638A EP 0453466 A1 EP0453466 A1 EP 0453466A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
longitudinal axis
outlet
inlet
feed tube
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Withdrawn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
EP19900901638
Other languages
German (de)
English (en)
Inventor
David Stonecliffe
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.)
Davy Mckee Sheffield Ltd
Original Assignee
Davy Mckee Sheffield Ltd
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 Davy Mckee Sheffield Ltd filed Critical Davy Mckee Sheffield Ltd
Publication of EP0453466A1 publication Critical patent/EP0453466A1/fr
Withdrawn legal-status Critical Current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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • B22D11/047—Means for joining tundish to mould

Definitions

  • This invention relates to horizontal continuous casting apparatus where the longitudinal axis of the mould passage provided by the mould assembly is arranged horizontal and the molten metal stored in a tundish is fed to the mould passage by way of a nozzle in a side wall of the tundish and a feed tube connecting the nozzle to the mould assembly.
  • the mould assembly is fixed, the feed tube is clamped to the mould assembly to prevent leakage of molten metal between the outlet of the feed tube and the inlet of the mould passage, and the tundish is urged towards the mould assembly to provide a leak-proof joint between the outlet of the nozzle and the inlet of the feed tube.
  • the casting apparatus is to be capable of casting workpieces of different cross-sections, then different moulds have to be employed and the axes of the moulds have to be raised and lowered with respect to the roller table. It is desirable for the longitudinal axis of the mould passage to be aligned with that of the feed tube and that of the outlet of the nozzle. Consequently, if the longitudinal axis of the mould passage is raised or lowered, it is usual to attempt to raise or lower the tundish. This can lead to difficulties, bearing in mind that the tundish supports a mass of molten metal.
  • An object of the present invention is to overcome these difficulties.
  • horizontal continuous casting apparatus comprises a tundish having a refractory nozzle fitted in a side wall thereof, said nozzle having an inlet and an outlet; a mould assembly having a horizontal mould passage therethrough; a refractory feed tube having an inlet in communication with the outlet of the nozzle and an outlet in communication with the inlet of the mould passage to provide a closed duct between the outlet of the nozzle and the inlet of the mould passage; characterised in that the longitudinal axis of the outlet of the feed tube is aligned with the longitudinal axis of the mould passage and is offset vertically from the longitudinal axis of the inlet of the nozzle.
  • the refractory nozzle may have an opening therethrough which has the longitudinal axis of the inlet offset from the longitudinal axis of the outlet.
  • the longitudinal axis of the outlet of the nozzle is aligned with the longitudinal axis of the mould passage and with the longitudinal axis of the feed tube.
  • the opening through the refractory nozzle has the longitudinal axes of its inlet and outlet ends aligned but the feed tube has the longitudinal axis of its inlet end aligned with the longitudinal axis of the outlet of the nozzle but vertically offset from the longitudinal axis of its outlet end which is aligned with the longitudinal axis of the mould passage.
  • moulds for producing castings of larger and smaller cross-sections can be employed- without having to raise or lower or tip the tundish.
  • Figure 1 is a sectional side elevation of conventional horizontal continuous casting apparatus
  • Figure 2 is a diagrammatic side elevation of continuous casting apparatus in accordance with the present invention.
  • Figure 3 is a diagrammatic side elevation of continuous casting apparatus in accordance with a second embodiment of the present invention
  • f A m- m dtn ⁇ 5 are a sectional
  • Figure 6 is a diagrammatic side elevation of continuous casting apparatus in accordance with a third embodiment of the present invention.
  • a part of a horizontal continuous casting mould assembly is indicated by reference numeral 1.
  • the mould passage is indicated by reference numeral 2.
  • a break ring 3 is located at the inlet end of the mould passage and abutting against the break ring there is a refractory feed tube 5.
  • a clamp 7 fits around the feed tube and means (not shown) associated with the clamp serve to urge the end of the feed tube into engagement with the break ring which, in turn, is forced into the inlet end of the mould passage 2.
  • the opposite end of the refractory feed tube 5 fits into a recessed end portion of a refractory nozzle 9 mounted within a seat 11 located in a side wall 13 of a tundish 15 for containing molten metal.
  • the tundish is mounted on jacking means 17 whereby the tundish can be raised or lowered so that the longitudinal axis 19 of the nozzle 9 is aligned with the longitudinal axis 21 of the mould passage.
  • the tundish is usually mounted on wheels or the like and means (not shown) urge the tundish in the direction towards the mould to make a fluid type connection between the outlet of the nozzle and the inlet of the feed tube.
  • molten metal from the tundish flows through the nozzle and the feed tube into the mould passage where contact with the cooled wall defining the mould passage causes the molten metal to start to solidify to form a casting defined by the shape of the mould passage.
  • FIG. 2 the mould 1, feed tube 5 and nozzle 9 are shown in more generalised form.
  • a pair of hydraulically operated hooks 23 which engage with a flange on the feed tube 5 show how the feed tube can be urged into engagement with the mould assembly.
  • a hydraulically operated jack shown by reference 25 indicates how the tundish can be urged towards the mould assembly 1.
  • the mould assembly 1 is raised or lowered so that the lower side of the casting leaving the mould passage is supported on the upper surface of the roller table 27.
  • the longitudinal axis 21 of the mould passage is raised and lowered.
  • the longitudinal axis of the feed tube 5 is aligned with the longitudinal axis 21 of the mould passage but this axis may not then be vertically aligned with the longitudinal axis of the nozzle 9.
  • the longitudinal axis 19 of the inlet end of the nozzle is. offset vertically with respect to the longitudinal axis 21 of the mould passage. It is, therefore, necessary for the nozzle 9 to be so arranged that the longitudinal axis of its inlet is aligned with axis 19 and the longitudinal axis of its outlet is aligned with axis 21.
  • Figures 4 and 5 show in more detail a typical nozzle 9' having an inlet 29, the longitudinal axis 31 of which is offset vertically from the longitudinal axis 33 of the outlet 35 of the nozzle.
  • the outlet is provided in a recessed part of the nozzle to enable the feed tube to project into the recessed part.
  • FIG 3 shows an alternative embodiment of the invention.
  • a different mould assembly 1A has a mould passage 2A where the longitudinal axis 21A of the mould passage is nearer to the support 27 than the axis 21 of Figure 2.
  • axis 21A is displaced vertically with respect to the axis 19 of the inlet end of the nozzle by a greater extent than is the case shown in Figure 2.
  • a different nozzle 9A is employed.
  • the means for securing the feed tube to the mould assembly and for biasing the tundish towards the mould assembly are not shown in Figure 3, but they may be the same form as shown in Figure 2 or, alternatively, they could be in the form of spring- loaded bolts or the like.
  • FIG. 6 An alternative arrangement is shown in Figure 6 where the nozzle 9B in the wall 13 of the tundish has an inlet aligned with its outlet and with the outlet of the nozzle aligned with the inlet of the feed tube 5B.
  • the longitudinal axis 19 of the nozzle is offset vertically from the longitudinal axis 21 of the mould passage so that the longitudinal axes of the inlet and outlet of the feed tube are offset vertically from one another.
  • the moulds may have passages of different cross-section and, by employing appropriate nozzles and feed tubes, it is possible to feed the two or more moulds without having to tip the tundish and maintain the lower surfaces of the moulds at a common level with each other and the roller tables.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

Dans un appareil de moulage horizontal en coulée continue, l'axe longitudinal (21) du passage de la coulée peut ne pas coïncider avec l'axe longitudinal (19) de la tuyère se trouvant dans la paroi de l'entonnoir de coulée (13). Afin de résoudre ce problème, la tuyère (9) et le tube d'alimentation (5), qui se trouve entre la tuyère (9) et le passage de coulée (2), sont disposés de sorte que l'axe longitudinal de la sortie du tube d'alimentation (5) coïncide avec l'axe longitudinal (21) du passage de coulée mais est décalé verticalement par rapport à l'axe longitudinal (19) de l'entrée de la tuyère.
EP19900901638 1989-01-13 1990-01-10 Appareil de moulage horizontal en coulee continue Withdrawn EP0453466A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8900739 1989-01-13
GB898900739A GB8900739D0 (en) 1989-01-13 1989-01-13 Horizontal continuous casting apparatus

Publications (1)

Publication Number Publication Date
EP0453466A1 true EP0453466A1 (fr) 1991-10-30

Family

ID=10649982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900901638 Withdrawn EP0453466A1 (fr) 1989-01-13 1990-01-10 Appareil de moulage horizontal en coulee continue

Country Status (4)

Country Link
EP (1) EP0453466A1 (fr)
AU (1) AU4844990A (fr)
GB (1) GB8900739D0 (fr)
WO (1) WO1990007997A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224590A1 (de) * 1992-07-22 1994-01-27 Mannesmann Ag Kokille für Horizontalstrangguß
GB0420611D0 (en) * 2004-09-16 2004-10-20 Rautomead Ltd Die mounting

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1954763A1 (de) * 1969-07-01 1971-02-04 Adamec Ing Alfred Verfahren zum Betrieb eines Induktors und Induktor hierfuer
GB2016978A (en) * 1977-12-19 1979-10-03 Alusuisse Pouring arrangement for horizontal casting
EP0036777A1 (fr) * 1980-03-26 1981-09-30 Irving Rossi Machine pour la coulée continue horizontale
DE3124202A1 (de) * 1981-06-19 1983-01-05 Nippon Steel Corp., Tokyo Verfahren und vorrichtung zum stranggiessen von metallgussteilen
DE3201633C2 (de) * 1982-01-20 1988-07-07 Technica-Guss GmbH, 8700 Würzburg Absperrvorrichtung bei einer horizontalen Stranggießanlage
JPH0636962B2 (ja) * 1987-06-05 1994-05-18 日本鋼管株式会社 水平連続鋳造におけるブレ−クリングの締付け方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9007997A1 *

Also Published As

Publication number Publication date
WO1990007997A1 (fr) 1990-07-26
AU4844990A (en) 1990-08-13
GB8900739D0 (en) 1989-03-08

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