US3261059A - Device for cooling the rod being formed in a machine for the continuous casting of metal rods of indefinite length - Google Patents

Device for cooling the rod being formed in a machine for the continuous casting of metal rods of indefinite length Download PDF

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Publication number
US3261059A
US3261059A US243087A US24308762A US3261059A US 3261059 A US3261059 A US 3261059A US 243087 A US243087 A US 243087A US 24308762 A US24308762 A US 24308762A US 3261059 A US3261059 A US 3261059A
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casting
rod
cooling
groove
metal
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Expired - Lifetime
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US243087A
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English (en)
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Properzi Ilario
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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
    • B22D11/06—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

Definitions

  • the present invention relates to a device for cooling the rod being formed in a machine for the continuous casting of metal rods of indefinite length.
  • the machine in question is of the type which comprises a drum rotatable on its own axis and provided with a peripheral groove: the molten metal, having been introduced into said groove at a point situated at a certain height, issues thereafter from the groove in the form of an ingot or rod, at a point a certain arcuate length away from said point of entrance.
  • An endless metallic belt or band contacts to the periphery of the drum along the length thereof from the point at which the molten metal enters the groove up to the point at which the ingot or rod issues therefrom, so that, at every instant, said belt closes the groove along said length of the drum and prevents the metal from escaping therefrom.
  • the metal As it travels through the arc stretching from the point of entrance of the metal to the point of issue of the ingot (which points are fixed in space while the grooved drum rotates about its axis), the metal must solidify and, in order to do so, must be cooled.
  • One cooling system already provided on a machine of this type comprises a dispersion of heat inside the drum (by cooling through water circulation) and a device which directs jets of water on to a length of said belt covering the groove, striking the outer surface of said belt.
  • ingot per unit of time depends on the speed of rotation of the grooved wheel, and this speed, for a given cooling system, cannot exceed a certain limit.
  • An object of the present invention is to provide for more powerful cooling of the forming ingot. This brings the advantage not only of being able to increase the output of ingot by increasing the speed of the drum, but also of achieving a finer crystalline structure and less segregation in the ingot.
  • the machine for the continuous casting of indefinite metallic bars comprises means for a preliminary cooling of the metal over at least a first part of the arc included between the two points respectively of metal inlet and ingot discharge, and is characterized in that there is provided a cooling device comprising means adapted to cause a length of belt, starting from a point in said are at which the forming ingot is in a state at least sufficiently pasty to give the ingot a certain mechanical strength, to be separated somewhat from said drum periphery, and means adapted to send jets of water such as will wash the surface of the length of ingot which is uncovered corresponding to the length of belt aforesaid which has moved a certain distance away from the periphery of the drum.
  • FIG. 1 shows a side view of a machine provided with the device in question
  • FIG. 2 shows a cross-section of the device taken along the line II-II of FIG. 1;
  • FIG. 3 shows a cross-section taken along the line IIIIII of FIG. 1.
  • the machine for the continuous .casting of metal rods of indefinite length that is visible in FIG. 1, comprises a drum 1, rotatable on its own horizontal axis and driven by a motor.
  • Drum 1 comprises a peripheral portion 2 formed with a groove 3 (around the whole of its circumference) into which the molten metal for the formation of the ingot or rod is drawn.
  • the metal in the liquid state 22 comes from a crucible 4 and is inducted into groove 3 at point A through a nozzle 5.
  • An endless belt 6, supported on a wheel 7 and on drum 1 itself, is looped partially around the latter so as to form a closing wall of the peripheral groove 3 along an are which starts at point A and ter minates at a point B where the metal 22 issues solidified in the form of an ingot.
  • Said belt keeps the metal, which is first molten and then pasty, inside said groove, and thereafter the metal, or rather the ingot, leaves the groove at point B. Once clear of the drum beyond point B, the ingot moves onward over sustaining and guiding means (not shown), and is then sent to successive machining processes whereby the finished rod or bar is obtained.
  • Said system for dispersing the heat inside the drum and also the schematically shown device 8, are in themselves independent of the invention but they also form part of the machine in question and provide for a preliminary cooling of the metal.
  • the device provided according to the invention for a more rapid and effective cooling, comprising two members 9 placed at the two sides of the drum and symmetrical one with the other in respect to the centre plane of said drum, i.e. the lane perpendicular to the axis of the drum and dividing the drum ideally into two halves (the edge of said plane being indicated in FIGURES 2 and 3 by the line P).
  • Each member 9 comprises two parts 16 and 17 joined together by means of pairs of screws 18.
  • Part 16 is formed with a cavity 19 extending along an are starting substantially from a point D and going up to the neighborhood of a point G at the end of member 9 near point B.
  • Cavity 19 is closed along one side by part 17 and is closed also at the two ends D and G of said are whereat said cavity starts and finishes.
  • a pipeline 20 admits water into cavity 19 whence the water, which enters said cavity along the whole length of said are DG, can issue only through a set of holes -21 formed at regular intervals along said arc.
  • the axes of holes 21 are so oriented that the jet of water issuing from each of them can impinge on the metal 22 of the rod, as will be apparent hereinafter.
  • each pipeline 20 admits water into cavity 19 of the respective member 9 near the end D thereof, but the point of connection between pipeline 20 and cavity 19 can be at any desired point on are DG.
  • the number, section and distribution of holes 21 along arc DG can be determined in various ways.
  • Each member 9 also carries a set of small rollers 23,
  • arc DG distributed along arc DG at equally spaced intervals, each of which is housed in a seat of member 19, protruding partly therefrom, and can freely rotate on its own axis.
  • the two members 9 are integral with each other so as to form a single body; this body, which extends from point E to point G, is pivoted on a fixed support 10 in such a manner that it can perform rotations about a horizontal axis indicated by the numeral 11.
  • Said body comprising the two members 9 is also pivoted at its end E to an arm 12 which is in turn pivoted at a threaded rod 13.
  • the lead screw of rod 13 is integral with a handwheel 14 and can rotate, without moving axially, inside a fixed support 15.
  • rod 13 moves, in an axial sense only, upwards or downwards, thus causing the assembly of members 9 to rotate about axis 11 so as to depart from or approach the drum.
  • each member 9 By admitting water into cavity 19 of each member 9 (e.g. by turning on a suitable tap which sends water simultaneously to both cavities 19), the water, issuing from holes 21, impinges on the metal 22 (v. FIG; 3) of the forming ingot along arc DB, exercising thereon the greatest possible cooling action.
  • the device comprising members 9 is set according to the conditions hereinabove described in which the belt is separated from the periphery of drum 1 along arc DB, and the tap which sends water into said members 9 is opened.
  • the metal which, as stated, enters in liquid form into the peripheral groove 3, begins immediately afterwards to cool, both on account of said dispersion inside the drum through the circulation therein of water, and on account of the jets of water sent by device 8 on to the outer surface Of belt 6.
  • the metal arrives at point D, where the length of belt that is detached from the drum begins, in a solid or almost solid state (i.e. pasty in practice) and, in any case, no longer liquid, so that it possesses a certain compactness at the moment when it enters into the portion of the groove 3 that is not completely closed by the belt, while still being at a relatively high temperature.
  • a machine for the continuous casting of molten metal in a continuous rod form having a rotatable casting wheel with a peripheral casting groove therein and a moving endless belt which contacts said wheel to define an enclosed casting area with the peripheral casting groove extending over an arcuate segmental length of the travel of the rotating wheel
  • said means for cooling said metal within a predetermined cooling portion of said segmental length of the moving enclosed casting area, into which the metal enters hardened to a degree that it is in a cohesive condition in the casting groove and will remain in that condition so that it may be separated slightly from the wall of the casting groove without breaking
  • said means cooling including apparatus comprising separating means for displacing the endless belt radially away from the wheel and casting groove in said predetermined cooling portion to an extent to provide for sufficient separation of casting wheel, bell and rod and permitting the rod in the casting groove to be positioned radially away from the same in said predetermined portion so that a cooling liquid may contact and cool the rod around its entire cross sectional periphery while the rod is still in said casting groove
  • a machine for the continuous casting of molten metal in a continuous rod form having a rotatable casting wheel with a peripheral casting groove therein and a moving endless belt which contacts said wheel to define an enclosed casting area with the peripheral casting groove extending over an arcuate segmental length of the travel of the rotating wheel
  • said means for cooling including apparatus having a part thereof on each side of the casting wheel adjacent the endless belt, separating means in each said part for displacing the endless belt radially away from the wheel and casting groove in said predetermined cooling portion to an extent to provide for sufficient separation of casting wheel, belt and rod and permitting the rod in the casting groove to be positioned radially away from the same in said predetermined portion so that a cooling liquid may contact and cool the
  • a machine for the continuous casting of molten metal in a continuous rod form having a rotatable casting wheel with a peripheral casting groove therein and a moving endless belt which contacts said wheel to define an enclosed casting area with the peripheral casting groove extending over an arcuate segmental length of the complete travel of the rotating wheel
  • said means for cooling including apparatus having a part thereof on each side of the casting wheel adjacent the endless belt, separating means each said part for displacing the endless belt radially out of contact with the wheel and casting groove in said predetermined cooling portion to an extent to provide for suflicient separation of casting wheel, belt and rod and permitting the rod in the casting groove to be positioned radially away from the same in said predetermined portion so that a cooling liquid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US243087A 1961-12-13 1962-12-07 Device for cooling the rod being formed in a machine for the continuous casting of metal rods of indefinite length Expired - Lifetime US3261059A (en)

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IT2232661 1961-12-13

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US (1) US3261059A (fi)
BE (1) BE626031A (fi)
DE (1) DE1188769B (fi)
FR (1) FR1340770A (fi)
GB (1) GB958761A (fi)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608076B1 (de) * 1967-01-24 1970-10-08 Pechiney Prod Chimiques Sa Vorrichtung zum Giessen kleiner Barren
US3575231A (en) * 1968-01-25 1971-04-20 Southwire Co Method and apparatus for injecting thermal conducting in a band wheel continuous casting shrinkage gap
US3623535A (en) * 1969-05-02 1971-11-30 Southwire Co High-speed continuous casting method
US3766968A (en) * 1971-04-30 1973-10-23 Voest Ag Continuous casting plant for slabs
US3989093A (en) * 1974-03-18 1976-11-02 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Continuous casting plant for slabs
US4122889A (en) * 1977-04-01 1978-10-31 Southwire Company Cooling of continuously cast bar by hydraulic band lifting
US4204568A (en) * 1976-11-15 1980-05-27 Southwire Company Method of prolonging the life of a rotary casting machine band
US4957155A (en) * 1988-08-04 1990-09-18 Zdenek Trnka Cooling system for continuous casting machines

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333629A (en) * 1966-07-18 1967-08-01 Southwire Co Casting wheel cooling apparatus
US3583474A (en) * 1967-11-10 1971-06-08 Ilario Properzi Cooling system for groove closing tapes of continuous ingot casting wheel machines

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US315045A (en) * 1885-04-07 Nathan e
US594583A (en) * 1897-11-30 Casting apparatus
US2659949A (en) * 1951-11-08 1953-11-24 Properzi Ilario Machine for the continuous casting of metal rods
US2659948A (en) * 1950-01-21 1953-11-24 Properzi Ilario Machine for the continuous casting of metal rods
US2710433A (en) * 1948-04-30 1955-06-14 Properzi Hario Continuous metal casting machine
US2714235A (en) * 1950-02-18 1955-08-02 Joseph B Brennan Method and apparatus for casting strip metal
US2865067A (en) * 1957-02-06 1958-12-23 Properzi Ilario Continuous casting machine
FR1178580A (fr) * 1957-06-26 1959-05-12 Pechiney Coulée continue des métaux
US2956320A (en) * 1955-12-28 1960-10-18 Olin Mathieson Casting of metal

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US315045A (en) * 1885-04-07 Nathan e
US594583A (en) * 1897-11-30 Casting apparatus
US2710433A (en) * 1948-04-30 1955-06-14 Properzi Hario Continuous metal casting machine
US2659948A (en) * 1950-01-21 1953-11-24 Properzi Ilario Machine for the continuous casting of metal rods
US2714235A (en) * 1950-02-18 1955-08-02 Joseph B Brennan Method and apparatus for casting strip metal
US2659949A (en) * 1951-11-08 1953-11-24 Properzi Ilario Machine for the continuous casting of metal rods
US2956320A (en) * 1955-12-28 1960-10-18 Olin Mathieson Casting of metal
US2865067A (en) * 1957-02-06 1958-12-23 Properzi Ilario Continuous casting machine
FR1178580A (fr) * 1957-06-26 1959-05-12 Pechiney Coulée continue des métaux

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608076B1 (de) * 1967-01-24 1970-10-08 Pechiney Prod Chimiques Sa Vorrichtung zum Giessen kleiner Barren
US3575231A (en) * 1968-01-25 1971-04-20 Southwire Co Method and apparatus for injecting thermal conducting in a band wheel continuous casting shrinkage gap
US3623535A (en) * 1969-05-02 1971-11-30 Southwire Co High-speed continuous casting method
US3766968A (en) * 1971-04-30 1973-10-23 Voest Ag Continuous casting plant for slabs
US3989093A (en) * 1974-03-18 1976-11-02 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Continuous casting plant for slabs
US4204568A (en) * 1976-11-15 1980-05-27 Southwire Company Method of prolonging the life of a rotary casting machine band
US4122889A (en) * 1977-04-01 1978-10-31 Southwire Company Cooling of continuously cast bar by hydraulic band lifting
US4957155A (en) * 1988-08-04 1990-09-18 Zdenek Trnka Cooling system for continuous casting machines

Also Published As

Publication number Publication date
DE1188769B (de) 1965-03-11
FR1340770A (fr) 1963-10-18
BE626031A (fi)
GB958761A (en) 1964-05-27

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