EP0036777A1 - Machine pour la coulée continue horizontale - Google Patents

Machine pour la coulée continue horizontale Download PDF

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Publication number
EP0036777A1
EP0036777A1 EP81301231A EP81301231A EP0036777A1 EP 0036777 A1 EP0036777 A1 EP 0036777A1 EP 81301231 A EP81301231 A EP 81301231A EP 81301231 A EP81301231 A EP 81301231A EP 0036777 A1 EP0036777 A1 EP 0036777A1
Authority
EP
European Patent Office
Prior art keywords
mold
passage
casting
horizontal
molten
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Withdrawn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
EP81301231A
Other languages
German (de)
English (en)
Inventor
Irving Rossi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0036777A1 publication Critical patent/EP0036777A1/fr
Withdrawn legal-status Critical Current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
    • B22D11/04—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

  • the supply problem is to cause molten metal to fill the mold fully and to press against the upper face of the mold.
  • the molten metal is caused to fill this upper space, by employing an intermittent casting-withdrawal rate - a stop-and-go withdrawal.
  • an intermittent casting-withdrawal rate - a stop-and-go withdrawal.
  • a relatively short cooled horizontal mold passage or nozzle is provided, and liquid metal is continuously and constantly forced into filling contact with the mold; the constant force is achieved by a head of ferrostatic pressure in the molten metal within the mold, assuring pressure around the entire metal surface of the cooled mold, to thereby form an embryo shell.
  • Molten metal 16 is continuously supplied to the upstream end of mold 13, via a tundish 17 and via a broken passage 18 in a conduit member 19 of suitable refractory material, such as graphite, or other material impervious to a flow of liquid steel.
  • suitable refractory material such as graphite, or other material impervious to a flow of liquid steel.
  • the term "broken" is employed to describe the preferred directional change in the flow path determined by passage 18; passage 18 is inclined below the horizontal, to establish a net vertical head or drop H from its upstream end to its downstream end, the upstream end is curved to receive a continuous horizontal discharge of molten metal 16 at exit from tundish 17, while the downstream end is similarly but oppositely curved, to permit the casting to form and to exit in horizontal alignment with the support and conveyor means 11-12-12'.
  • the length L of conduit member 19 and the steepness of downward slope of passage 18 will be understood to be such as to assure ferrostatically pressurised delivery of molten metal to the full peripher
  • Figs. 4 and 5 illustrate further refractory-passage configurations which embody the ferrostatic-head principle discussed, corresponding reference numerals being used where applicable.
  • the function of the refractory conduit member 19' is to provide the head or drop H within a short length L so as to avoid as much as possible any cooling within the refractory passage 18', all for the situation in which upstream supply from the tundish is horizontal, and in which discharge to mold 13 is on the horizontal alignment of the mold liner 14.
  • Fig. 4 illustrate further refractory-passage configurations which embody the ferrostatic-head principle discussed, corresponding reference numerals being used where applicable.
  • the function of the refractory conduit member 19' is to provide the head or drop H within a short length L so as to avoid as much as possible any cooling within the refractory passage 18', all for the situation in which upstream supply from the tundish is horizontal, and in which discharge to mold 13 is on the horizontal alignment of the mold liner 14.
  • Fig. 4 illustrate
  • the refractory conduit member 19' further reduces refractory-passage length for the requisite ferrostatic head which is operative within the-mold, by accepting vertically downward discharge of molten metal from the tundish, provision being made at 30 for flow regulation as may be needed for achievement of correct supply of metal to the mold.
  • the horizontal caster of the invention does not require the wide-face (i.e., large-diameter) rolls which obstruct and preclude cooling access to as much as 85 percent of a vertically cast slab surface, so that therefore the horizontal- caster product is immediately and fully exposed and accessible. And quick-cooling is not only tolerable but desirable. Horizontal casting therefore offers a major saving both in number and size of rolls and in roll maintenance, as well as ideal cooling conditions (i.e. accessibility for cooling) for every grade of steel.
  • the machine and method of the invention is applicable to the production of a full range of size and shape of cast strands, including slabs.
  • a substantial part of the heat of the molten steel is available for rolling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP81301231A 1980-03-26 1981-03-23 Machine pour la coulée continue horizontale Withdrawn EP0036777A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13396980A 1980-03-26 1980-03-26
US133969 1980-03-26
US21922580A 1980-12-23 1980-12-23
US219225 1980-12-23

Publications (1)

Publication Number Publication Date
EP0036777A1 true EP0036777A1 (fr) 1981-09-30

Family

ID=26831849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81301231A Withdrawn EP0036777A1 (fr) 1980-03-26 1981-03-23 Machine pour la coulée continue horizontale

Country Status (2)

Country Link
EP (1) EP0036777A1 (fr)
ES (1) ES8306040A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566526A (en) * 1982-09-27 1986-01-28 Concast, Incorporated Method and apparatus for semi-horizontal continuous casting
WO1990007997A1 (fr) * 1989-01-13 1990-07-26 Davy Mckee (Sheffield) Limited Appareil de moulage horizontal en coulee continue

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146078A (en) * 1976-12-17 1979-03-27 Concast Ag Method of and apparatus for continuous horizontal casting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146078A (en) * 1976-12-17 1979-03-27 Concast Ag Method of and apparatus for continuous horizontal casting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566526A (en) * 1982-09-27 1986-01-28 Concast, Incorporated Method and apparatus for semi-horizontal continuous casting
WO1990007997A1 (fr) * 1989-01-13 1990-07-26 Davy Mckee (Sheffield) Limited Appareil de moulage horizontal en coulee continue

Also Published As

Publication number Publication date
ES500641A0 (es) 1982-09-16
ES8306040A1 (es) 1982-09-16

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Legal Events

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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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AK Designated contracting states

Designated state(s): AT DE FR GB IT SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19820906