WO2016166576A1 - Appareil pour la production de lingots de métal par coulée - Google Patents

Appareil pour la production de lingots de métal par coulée Download PDF

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Publication number
WO2016166576A1
WO2016166576A1 PCT/IB2015/052810 IB2015052810W WO2016166576A1 WO 2016166576 A1 WO2016166576 A1 WO 2016166576A1 IB 2015052810 W IB2015052810 W IB 2015052810W WO 2016166576 A1 WO2016166576 A1 WO 2016166576A1
Authority
WO
WIPO (PCT)
Prior art keywords
casting
shell
bodies
segment
cooling
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.)
Ceased
Application number
PCT/IB2015/052810
Other languages
English (en)
Inventor
Cristian TOMASONI
Davide Ferrari
Siliano FERRARI
Federico BIANCHETTI
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.)
B2FT Srl
Original Assignee
B2FT Srl
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 B2FT Srl filed Critical B2FT Srl
Priority to PCT/IB2015/052810 priority Critical patent/WO2016166576A1/fr
Publication of WO2016166576A1 publication Critical patent/WO2016166576A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0688—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0608—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/0657—Caterpillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D5/00—Machines or plants for pig or like casting
    • B22D5/02—Machines or plants for pig or like casting with rotary casting tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D5/00—Machines or plants for pig or like casting
    • B22D5/04—Machines or plants for pig or like casting with endless casting conveyors

Definitions

  • the present invention relates to an apparatus for the production, by casting, and preferably by continuous casting, of metal ingots, and in particular of ingots of nonferrous metals such as, for example, primary aluminum, aluminum alloy, brass, zinc alloys, etc. .
  • all metals are extracted from mined minerals, or they are obtained by recycling scrap metal and, after various transitions, are made available in commercial form and reduced to suitable sizes.
  • the present invention relates to an apparatus for the production of ingots, i.e. of the format that is easy to handle, is especially suitable for re- melting, and has a weight comprised between a few kilograms and a few dozen kilograms.
  • the ingots are required, according to requirements of use, in various different sizes and they must have characteristics which are such as to ensure the desired quantity of molten metal.
  • One of the most commonly used techniques for producing ingots involves the use of a continuous casting machine which is provided with a movable casting shell composed of a plurality of segments, or casting bodies, which are arranged in succession, each with a segment of the casting shell defined with bottom and sides, and open on the sides directed toward the contiguous segments.
  • the segments are movable along a closed path which has at least one substantially rectilinear first segment at the casting region.
  • the closed path defines a second, cooling segment, also substantially rectilinear in extension, in which the segments are closed by a closure belt that faces, with a segment thereof, the second, cooling segment and is arranged on the opposite side with respect to the bottom of the shell.
  • cooling segment are positioned means of cooling the metal cast in the shell, which are constituted, for example, by nozzles for dispensing a cooling fluid that is adapted to strike, with the fluid, the belt element and the side walls and bottom of the segments that define the open shell.
  • the path of the segments has a variation of direction for the progressive release of the casting shell by the metal bar that derives from the solidification of the molten metal.
  • the non-continuous pouring of the metal carried out individually, shell by shell further reduces the speed of the apparatus in addition to presenting further criticalities owing to the fact that the filling of the individual shells is not always constant.
  • the cooling of the ingots occurs by convection of a fluid on the outer surface of the individual shells.
  • the shells for cooling/solidification have a very limited heat exchange surface and this results in low solidification speeds and thus low hourly production.
  • the aim of the present invention is to solve the above mentioned problems and overcome the drawbacks, by providing an apparatus for the production, by casting, of metal ingots which makes it possible to appreciably increase hourly production.
  • an object of the invention is to provide an apparatus that is easy to operate. Another object of the present invention is to make available an apparatus for the production, by continuous casting, of metal ingots which is low cost so as to make its adoption advantageous from an economic viewpoint as well.
  • Figure 1 is a schematic side elevation view of a portion of the apparatus according to the invention.
  • Figure 2 is an enlarged cross-sectional view of a portion of the apparatus, taken along the line II-II in Figure 1 ;
  • Figure 3 is an exploded view of an embodiment of the casting body
  • Figure 4 is a perspective view of a casting body
  • Figure 5 is a view from below of the casting body shown in Figure 3;
  • Figure 6 is a side elevation view of the casting body;
  • Figure 7 is a front elevation view of the casting body
  • Figure 8 is a schematic view from above of a second type of apparatus for the production of ingots
  • Figure 9 is a cross-sectional view taken along the line IX-IX in Figure 8.
  • Figure 10 is a schematic view from above of a third type of apparatus for the production of ingots
  • Figure 1 1 is a cross-sectional view taken along the line XI-XI in Figure 10.
  • the present invention relates to an apparatus, generally designated by the reference numeral 1 , for the production, by casting, of ingots and, in particular, of nonferrous metals.
  • the apparatus 1 comprises a casting device 2 associated with at least one casting shell 3.
  • the casting shell or shells 3 is/are movable along a closed path 100.
  • the casting shell or shells 3 defines/define at least one containment receptacle 4 for the molten metal fed by the casting device 2.
  • the casting shell 3 comprises at least one finned body 5 for the dissipation of the heat from the casting shell 3 by way of forced convection.
  • the (or each) finned body 5 is associated stably with a respective mating portion 6 which is defined on the outer surface of the casting shell 3.
  • the casting shell 3 comprises a continuous casting device 2a.
  • the casting shell 3 comprises a plurality of casting bodies 7, which are arranged in succession and are movable along the closed path 100.
  • each casting body 7 defines a segment 3a, with bottom 7a and sides 7b, of the casting shell 3.
  • each casting body 7 is open on the sides directed toward the contiguous casting bodies 7.
  • the casting bodies 7 are movable along the closed path 100.
  • the closed path 100 has a first segment 101 , advantageously substantially rectilinear, which is arranged at the casting region and, downstream of the first segment 101 , a second, cooling segment 102, substantially rectilinear, in which the casting bodies 7 are substantially aligned so as to define, with the respective bottoms 7a and the respective sides 7b, the casting shell 3.
  • the casting shell 3 thus is continuous, rectilinear and closed for at least one segment of the closed path 100, downstream of the casting region, by closure means 8 at its side that is opposite with respect to the bottom.
  • the closed path 100 of the casting bodies 7 has, furthermore, conveniently downstream of the second, cooling segment 102, a variation of direction for the progressive release of the casting shell 3 by the metal bar 9 that derives from the solidification of the metal in the casting shell 3.
  • the apparatus 1 has, downstream of the casting shell 3 in the direction of advancement of the metal bar 9, a first cooling station, for example of the tunnel type.
  • a cutter for example of the rotating type, for the cutting, into ingots of the desired length, of the metal bar 9.
  • each casting body 7 defines at least one respective mating portion 6 with which to stably associate at least one respective fmned body 5.
  • the (or each) finned body 5 is associated stably with the respective mating portion 6 by way of forced mating and/or by way of mutual fixing by way of screws 1 1.
  • the (or each) finned body 5 is associated stably with the respective mating portion 6 by way of interposition of a heat-conducting paste 10.
  • the heat-conducting paste is of the adhesive type and, advantageously, is water-resistant.
  • the mating portion 6 is defined at a portion of the outer surface of each casting body 7 that is designed to be directed downward along the second, cooling segment 102.
  • the (or each) finned body 5 comprises a plurality of fins 5a which are mutually spaced apart.
  • the fins 5a are arranged along a direction that is substantially parallel to the advancement direction of the casting shell 3 along the closed path 100.
  • the finned body 5 is made of aluminum or copper.
  • the casting bodies 7 are made of copper.
  • the closure means 8 can be constituted by a belt element 8a.
  • the belt element 8a can move along a path that faces, with a segment thereof, at least one portion of the second, cooling segment 102.
  • the casting bodies 7 are connected to the mesh of a closed loop chain 12 and such chain 12 is wound around at least two pinions on mutually parallel axes.
  • the second, cooling segment 102 is defined at the upper level of the chain 12.
  • the apparatus 1 is provided with cooling means, designated with the reference numeral 13, of the metal poured into the casting shell 3.
  • the cooling means 13 comprise a plurality of nozzles 13a for dispensing a cooling fluid, which are adapted to strike the finned bodies 5 with the cooling fluid.
  • the subject matter of the present invention can equally effectively be applied to apparatuses for the production, by casting, of metal ingots, and specifically of non-ferrous metal, differently from the apparatus described and illustrated in Figures 1 to 7.
  • the finned body 5 can also be associated with apparatuses of similar type to that described, but with the movable shell constituted by the casting bodies 7 wound on a wheel in order to provide, in this case also, a continuous casting bar 9.
  • Figures 8 and 9 show an apparatus 30 with casting bodies 7 arranged side by side and each defining a containment receptacle 4 which is already shaped like an ingot.
  • the casting device 2 feeds the quantity of molten metal required into the containment receptacle 4, on which a casting body 7 is defined.
  • the casting body 7 is associated, at its outer surface, with a finned body 5.
  • Figures 9 and 10 schematically show an apparatus 1 of the carousel type 40 which has a plurality of casting bodies 7 which each define a plurality of containment receptacles 4 for a respective ingot.
  • the outer surface of the casting bodies 7 is associated with at least one finned body 5.
  • Operation of the apparatus 1 according to the invention is the following.
  • the molten metal is fed continuously into the crucible and, from the crucible, it is poured into the movable casting shell 3 defined by the casting bodies 7.
  • the metal is cooled by means of the jets of fluid emitted by the dispensing nozzles 13a.
  • the presence of the finned bodies 5 on the casting shell 3 and, in particular, at each casting body 7, makes it possible to reduce the cooling times and, consequently, to increase the speed of the casting shell 3 and, therefore, the productivity of the apparatus. Furthermore it is possible to likewise reduce the length of the second, cooling segment 102 and, thus, the overall space occupation of the apparatus 1.
  • finned bodies 5 cannot be used in apparatuses for the production of ingots which involve performing individual castings, in open shells, arranged on a moving belt.
  • the fmned body or bodies 5 is/are associated with a respective mating portion 6 defined on the outer surface of an open casting shell that defines a receptacle 4 which is shaped to that it corresponds to the ingot that it is desired to obtain.
  • the apparatus according to the invention fully achieves the intended aim and objects in that it makes it possible to reduce the cooling times of the metal poured into the casting shell 3 thus increasing, effectively, the productivity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un appareil (1) pour la production, par coulée, de lingots de métal, qui comprend un dispositif de coulée (2) associé à au moins une coquille de coulée (3) qui peut se déplacer le long d'un trajet fermé (100), la coquille de coulée (3) délimitant au moins un récipient de confinement (4) pour le métal en fusion fourni par le dispositif de coulée (2). La coquille de coulée (3) comprend au moins un corps à ailettes (5) pour l'évacuation de la chaleur hors de la coquille de coulée (3) par convection forcée.
PCT/IB2015/052810 2015-04-17 2015-04-17 Appareil pour la production de lingots de métal par coulée Ceased WO2016166576A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2015/052810 WO2016166576A1 (fr) 2015-04-17 2015-04-17 Appareil pour la production de lingots de métal par coulée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2015/052810 WO2016166576A1 (fr) 2015-04-17 2015-04-17 Appareil pour la production de lingots de métal par coulée

Publications (1)

Publication Number Publication Date
WO2016166576A1 true WO2016166576A1 (fr) 2016-10-20

Family

ID=53276930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2015/052810 Ceased WO2016166576A1 (fr) 2015-04-17 2015-04-17 Appareil pour la production de lingots de métal par coulée

Country Status (1)

Country Link
WO (1) WO2016166576A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800006009A1 (it) * 2018-06-04 2019-12-04 Apparato di colata continua di prodotti

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE688836C (de) * 1937-10-26 1940-03-04 Dortmund Hoerder Huettenver Ak Vorrichtung zum fortlaufenden Giessen von Straenge
US5899260A (en) * 1996-02-20 1999-05-04 Hulek; Anton Crawler-mounted ingot mold for a continuous casting plant
US6345801B1 (en) * 1998-06-16 2002-02-12 Alain Renaud Boulet Mould for molten magnesium and method of producing magnesium ingots

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE688836C (de) * 1937-10-26 1940-03-04 Dortmund Hoerder Huettenver Ak Vorrichtung zum fortlaufenden Giessen von Straenge
US5899260A (en) * 1996-02-20 1999-05-04 Hulek; Anton Crawler-mounted ingot mold for a continuous casting plant
US6345801B1 (en) * 1998-06-16 2002-02-12 Alain Renaud Boulet Mould for molten magnesium and method of producing magnesium ingots

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800006009A1 (it) * 2018-06-04 2019-12-04 Apparato di colata continua di prodotti
WO2019234777A1 (fr) * 2018-06-04 2019-12-12 Danieli & C. Officine Meccaniche S.P.A. Appareil pour le coulage continu de produits

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