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WO2015104575A1 - Procédé de coulée continue à étirage par le haut et appareil de coulée continue à étirage par le haut - Google Patents

Procédé de coulée continue à étirage par le haut et appareil de coulée continue à étirage par le haut Download PDF

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Publication number
WO2015104575A1
WO2015104575A1 PCT/IB2014/002850 IB2014002850W WO2015104575A1 WO 2015104575 A1 WO2015104575 A1 WO 2015104575A1 IB 2014002850 W IB2014002850 W IB 2014002850W WO 2015104575 A1 WO2015104575 A1 WO 2015104575A1
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WO
WIPO (PCT)
Prior art keywords
draw
molten metal
machine
casting
starter
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/IB2014/002850
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English (en)
Inventor
Yusuke Yokota
Masafumi Nishida
Naoaki Sugiura
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of WO2015104575A1 publication Critical patent/WO2015104575A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B22D11/14—Plants for continuous casting
    • B22D11/145—Plants for continuous casting for upward casting

Definitions

  • the present invention relates to an up-drawing continuous casting method and an up-drawing continuous casting apparatus.
  • JP 2012-61518 A describes a free casting method as an epoch-making up-drawing continuous casting method that does not require a mold.
  • JP 2012-61518 A when a starter is immersed into a surface of molten metal (that is, a molten metal surface) and then the starter is drawn up, the molten metal follows the starter due to a surface film and a surface tension of the molten metal and the molten metal is also led out.
  • a casting having a desired sectional shape can be continuously casted by leading out the molten metal via a shape determining member placed near the molten metal surface, and then cooling the molten metal thus led out.
  • the sectional shape and the shape in a longitudinal direction are both determined by a mold.
  • solidified metal i.e., a casting
  • the shape determining member in the free casting method determines only the sectional shape of the casting and does not determine a longitudinal shape thereof.
  • castings having various longitudinal shapes can be obtained by drawing up the starter while moving the starter (or the shape determining member) horizontally.
  • JP 2012-61518 A describes a hollow casting (that is, pipe) formed not in a linear shape in its longitudinal direction, but in a zigzag shape or a helical shape in the longitudinal direction.
  • the inventor(s) found the following problem in terms of the up-drawing continuous casting method described in JP 2012-61518 A.
  • the casting cannot be cut while the casting is casted, so it is necessary to change a starter per product. That is, the up-drawing continuous casting method described in JP 2012-61518 A is a so-called batch-wise method. This requires a starter per product, which requires high cost, and further takes time to attach the starter per product, which has a possibility that productivity is low.
  • the present invention provides an up-drawing continuous casting method and an up-drawing continuous casting apparatus each of which does not require to change a starter per product and each of which is excellent in low cost and productivity.
  • An up-drawing continuous casting method is an up-drawing continuous casting method for forming a casting while drawing up molten metal held in a holding furnace, and includes: a step of drawing up the molten metal by a first draw-up machine via a starter gripped by the first draw-up machine; a step of gripping, by a second draw-up machine, the casting drawn up by the first draw-up machine; a step of fusion cutting the casting between the first draw-up machine and the second draw-up machine; and a step of drawing up the molten metal by the second draw-up machine via the casting gripped by the second draw-up machine.
  • the up-drawing continuous casting method includes: the step of gripping, by the second draw-up machine, the casting drawn up by the first draw-up machine; and the step of fusion cutting the casting between the first draw-up machine and the second draw-up machine. This makes it possible to cut off a casting while continue casting. Accordingly, it is not necessary to change a starter per product, and thus, the draw-up continuous casting method of the one aspect of the present invention is excellent in low cost and productivity.
  • the molten metal may be drawn up while being passed through a shape determining member placed on a rriolten metal surface of the molten metal and configured to determine a sectional shape of the casting. According to such a configuration, it is possible to form a casting with accuracy.
  • the draw-up continuous casting method of the one aspect of the present invention may further include, after the step of drawing up the molten metal by the second' draw-up machine: a step of gripping, by the first draw-up machine, the casting drawn up by the second draw-up machine on a lower side relative to the second draw-up machine; a step of fusion cutting again the casting between the first draw-up machine and the second draw-up machine; and a step of drawing up the molten metal by the first draw-up machine via the casting gripped by the first draw-up machine.
  • the casting may be fusion cut by laser fusion cutting. According to such a configuration, it is possible to form a casting with accuracy.
  • An up-drawing continuous casting apparatus is an up-drawing continuous casting apparatus for forming a casting while drawing up molten metal held in a holding furnace, and includes: a first draw-up machine configured to grip a starter and draw up the molten metal via the starter; a second draw-up machine configured to grip the casting drawn up by the first draw-up machine and draw up the molten metal via the casting; and a fusion cutting portion configured to fusion cut the casting between the first draw-up machine and the Second draw-up machine.
  • the up-drawing continuous casting apparatus includes: the second draw-up machine configured to grip the casting drawn up by the first draw-up machine and draw up the molten metal via the casting; and the fusion cutting portion configured to fusion cutting the casting between the first draw-up machine and the second draw-up machine.
  • the draw-up continuous casting apparatus of the one aspect of the present invention may further include a shape determining member placed on a molten metal surface of the molten metal and configured to determine a sectional shape of the casting, and the molten metal may be drawn up while being passed through the shape determining member. According to such a configuration, it is possible to form a casting with accuracy.
  • the fusion cutting portion may fusion cut the casting by laser fusion cutting. According to such a configuration, it is possible to cut the casting with accuracy.
  • the fusion cutting portion may include a first laser machining head slidably connected to the first draw-up machine, and a second laser machining head slidably connected to the second draw-up machine. According to such a configuration, position control of the laser machining heads can be easily performed.
  • a plurality of shape determining members may be provided. According to such a configuration, a thickness and a width of the molten metal passage portion can be changed. Further, the plurality of shape determining members can move in a z-axis direction in sync with each other.
  • the molten metal may follow the starter due to a surface film and a surface tension of the molten metal and the molten metal may be led out, the molten metal may be led out via the shape determining member provided near the molten metal surface, and the molten metal may be cooled off so as to continuously cast the casting having a desired sectional shape.
  • FIG. 1 is a schematic side view of a free casting apparatus according to Embodiment
  • FIG. 2 is a plan view of a shape determining member 102 according Embodiment 1;
  • FIG. 3 is a flow chart showing a free casting method according to Embodiment 1;
  • FIG. 4 is a side view illustrating an operation of a first draw-up machine 107, a second draw-up machine 108, and a laser machining head 111;
  • FIG. 5 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111;
  • FIG. 6 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111;
  • FIG. 7 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111;
  • FIG. 8 is a top view of FIG. 7;
  • FIG. 9 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111 ;
  • FIG. 10 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111;
  • FIG. 11 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111;
  • FIG. 12 is a side view illustrating the operation of the first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111;
  • FIG. 13 is a plan view of a shape determining member 102 according a modification of Embodiment 1;
  • FIG. 14 is a schematic side view of a free casting apparatus according to Embodiment
  • FIG. 1 is a schematic side view of a free casting apparatus according to Embodiment 1.
  • the free casting apparatus according to Embodiment 1 includes a molten metal holding furnace 101, a shape determining member 102, a support rod 104, an actuator 105, a coolant gas nozzle 106, a first draw-up machine 107, a second draw-up machine 108, a laser oscillator 109, an optical fiber 110, and a laser machining head 111.
  • FIG. 1 is a schematic side view of a free casting apparatus according to Embodiment 1.
  • the free casting apparatus according to Embodiment 1 includes a molten metal holding furnace 101, a shape determining member 102, a support rod 104, an actuator 105, a coolant gas nozzle 106, a first draw-up machine 107, a second draw-up machine 108, a laser oscillator 109, an optical fiber 110, and a laser machining head 111.
  • FIG. 1 is a schematic side
  • a xy plane in the following figures constitutes a horizontal plane, and a positive side in a z-axis direction indicates a vertically upward direction.
  • the molten metal holding furnace 101 stores therein molten metal Ml of aluminum or its alloy, for example, and keeps the molten metal Ml at a predetermined temperature at which the molten metal Ml has fluidity.
  • molten metal is not replenished into the molten metal holding furnace 101 during casting, so that a surface of the molten metal Ml (i.e., a molten metal surface) drops as the casting proceeds.
  • molten metal may be replenished, as needed, into the molten metal holding furnace 101 during casting such that the molten metal surface is kept constant.
  • a preset temperature of the molten metal holding furnace 101 is increased, a position of a solidification interface SIF can be raised.
  • the preset temperature of the molten metal holding furnace 101 is decreased, the position of the solidification interface SIF can be lowered.
  • the molten metal Ml may be of metal or its alloy other than aluminum.
  • the shape determining member 102 is made of ceramics or stainless, for example, and is placed on the molten metal Ml.
  • the shape determining member 102 determines a sectional shape of a casting M3 to be casted.
  • the casting M3 illustrated in FIG. 1 is a solid casting (a plate material) of which a horizontal section (hereinafter referred to as a transverse section) has a rectangular shape.
  • the sectional shape of the casting M3 is not limited in particular.
  • the casting M3 may be a hollow casting such as a circular pipe or a square pipe.
  • the shape determining member 102 is placed so that a principal plane (a bottom face) of a lower side of the shape determining member 102 makes contact with the molten metal surface. Accordingly, it is possible to prevent an oxide film formed on the surface of the molten metal Ml and foreign matters floating on the surface of the molten metal Ml from mixing into the casting M3. Further, the shape determining member 102 is easily warmed by the molten metal Ml, which is preferable. ' Meanwhile, the shape determining member 102 may be placed so that its bottom face is distanced from the molten metal surface only by a predetermined distance (e.g., around 0.5 mm). In a case where the shape determining member 102 is placed so as to be distanced from the molten metal surface, heat deformation and erosion of the shape determining member 102 are restrained, so that durability of the shape determining member 102 is improved.
  • a predetermined distance e.g., around 0.5 mm
  • FIG. 2 is a plan view of the shape determining member 102 according to Embodiment 1.
  • the sectional view of the shape determining member 102 of FIG. 1 corresponds to a sectional view taken along a line I-I in FIG. 2.
  • the shape determining member 102 has a rectangular flat shape, for example, and has, in its central part, a rectangular opening (a molten metal passage portion 103) of a thickness tl x width wl and configured such that the molten metal passes therethrough.
  • the molten metal Ml is drawn up following the casting M3 due to its surface film and its surface tension and passes through the molten metal passage portion 103 of the shape determining member 102. That is, when the molten metal Ml passes through the molten metal passage portion 103 of the shape determining member 102, an external force is applied to the molten metal Ml from the shape determining member 102, so that a sectional shape of the casting M3 is determined.
  • the molten metal drawn up, from the molten metal surface, following the casting M3 due to the surface film and the surface tension of the molten metal is referred to as retained molten metal M2. Further, a boundary between the casting M3 and the molten metal M2 is the solidification interface SIR
  • the support rod 104 supports the shape determining member 102.
  • the support rod 104 is connected to the actuator 105. Due to the actuator 105, the shape determining member 102 is movable in an up-down direction (a vertical direction, that is, the z-axis direction) via the support rod 104. With such a configuration, the shape determining member 102 can be moved downward when the casting proceeds and the molten metal surface drops.
  • the coolant gas nozzle (cooling portion) 106 is cooling means configured to cool off the casting M3 by spraying, on the casting M3, coolant gas (e.g., air, nitrogen, argon, or the like) supplied from a coolant gas supply portion (not shown).
  • coolant gas e.g., air, nitrogen, argon, or the like
  • a flow rate of the coolant gas is increased, a position of the solidification interface SIF is lowered, and when the flow rate of the coolant gas is decreased, the position of the solidification interface SIF is raised.
  • the coolant gas nozzle 106 is also movable in the up-down direction (the vertical direction, that is, the z-axis direction) and in a horizontal direction (an x-axis direction and a y-axis direction).
  • the coolant gas nozzle 106 can move downward along with the movement of the shape determining member 102, when the casting proceeds and the molten metal surface drops.
  • the coolant gas nozzle 106 can move in the horizontal direction along with horizontal movement of the first draw-up machine 107 and the second draw-up machine 108.
  • the first draw-up machine 107 includes a gripper 107a, so as to grip a starter ST or the casting M3 by the gripper 107a to draw up the casting M3.
  • the first draw-up machine 107 is placed on a negative side relative to the casting M3 in the x-axis direction, and grips the casting M3 from the negative side in the x-axis direction.
  • the second draw-up machine 108 includes a gripper 108a, so as to grip the starter ST or the casting M3 by the gripper 108a to draw up the casting M3.
  • the second draw-up machine 108 is placed on a positive side relative to the casting M3 in the x-axis direction, and grips the casting M3 from the positive side in the x-axis direction. In the meantime, the first draw-up machine 107 and the second draw-up machine 108 can release the starter ST or the casting M3 thus gripped. It is preferable that the first draw-up machine 107 and the second draw-up machine 108 be freely movable in the x-axis, y-axis and z-axis directions and be robot arms, for example.
  • the starter ST is first gripped by the first draw-up machine 107, and draw up the casting M3.
  • the casting M3 is cooled off by the coolant gas, the retained molten metal M2 near the solidification interface SIF solidifies sequentially from an upper side (a positive side in the z-axis direction) to a lower side (a negative side in the z-axis direction), and thus, the casting M3 is formed.
  • a lower part of the casting M3 is gripped by the second draw-up machine 108.
  • the casting M3 near above the second draw-up machine 108 is laser- fusion cut by the laser machining head 111.
  • the casting M3 gripped by the first draw-up machine 107 is separated as a product.
  • casting can be continued by the second draw-up machine 108.
  • the solidification interface SIF is held at an appropriate position (height). That is, the casting is performed in a state where a solidification speed on the solidification interface SIF and the draw-up speed are generally balanced. From the viewpoint of productivity, it is preferable that the draw-up speed be larger. However, if only the draw-up speed is increased while the solidification speed is kept constant, the solidification interface SIF would be raised and the retained molten metal M2 would break off. In order to increase the solidification speed (to lower the solidification interface SIF), an amount of the coolant gas should be increased or a temperature of the molten metal temperature should be decreased, as described above.
  • the laser machining head (fusion cutting portion) 111 is scanned in the x-axis direction at a height between the first draw-up machine 107 and the second draw-up machine 108. It is possible to fusion cut the casting M3 with accuracy by a laser beam LB (see FIG. 8) emitted from the laser machining head 111. At the time of fusion cutting, it is preferable that the laser machining head 111 be also movable in the z-axis direction according to a casting speed. This makes it possible to fusion cut the casting M3 horizontally.
  • the laser beam LB is generated by the laser oscillator 109 and emitted from the laser machining head 111 via the optical fiber 110.
  • the laser beam LB fiber laser, YAG laser, and the like can be used, for example.
  • the free casting apparatus according to Embodiment 1 uses laser fusion cutting as a cutting method of the casting M3, but also can use noncontact cutting such as gas fusion cutting or arc fusion cutting. However, from the viewpoint of fusion cutting accuracy, it is preferable to use the laser fusion cutting. Meanwhile, in order to restrain vibration to be given to the retained molten metal M2, it is preferable to use noncontact cutting as the cutting method of the casting M3.
  • the free casting apparatus according to Embodiment 1 includes the second draw-up machine 108 in addition to the first draw-up machine 107. Further, the free casting apparatus includes the laser machining head 111 that can fusion cut the casting M3. This makes it possible to obtain a product by fusion cutting the casting M3 while continuing casting. That is, the free casting apparatus according to Embodiment 1 can save a starter and time to attach the starter because it is not necessary to change the starter per product, and thus, the free casting apparatus according to Embodiment 1 is excellent in low cost and productivity. A detailed mechanism about the effect will be described later in the description about a free casting method according to Embodiment 1.
  • FIG. 3 is a flow chart showing the free casting method according to Embodiment 1.
  • FIGS. 4 to 7, 9 to 12 are side views each illustrating an operation of t e first draw-up machine 107, the second draw-up machine 108, and the laser machining head 111.
  • FIG. 8 is a top view of FIG. 7.
  • the starter ST is gripped by one draw-up machine (step ST1).
  • the starter ST is gripped by the gripper 107a of the first draw-up machine 107 from the negative side in the x-axis direction.
  • a tip end (a lower end) of the starter ST is immersed into the molten metal Ml while the tip end of the starter ST is passed through the molten metal passage portion 103 of the shape determining member 102.
  • the starter ST is drawn up at a predetermined speed, so as to cast one product (step ST2).
  • the retained molten metal M2 drawn up, from the molten metal surface, following the starter ST due to the surface film and the surface tension is formed.
  • the retained molten metal M2 is formed by the molten metal passage portion 103 of the shape determining member 102. That is, a shape is given to the retained molten metal M2 by the shape determining member 102.
  • the starter ST or the casting M3 is cooled off by the coolant gas as illustrated in FIG. 5, the retained molten metal M2 is cooled off indirectly and solidified sequentially from the upper side to the lower side, so that the casting M3 grows.
  • step ST3 it is determined whether or not a product thus casted is a final product. If the product is not the final product (NO in step ST3), a lower part of the casting M3 is gripped by the other draw-up machine (step ST4).
  • the second draw-up machine 108 that stands by on the positive side relative to the casting M3 in the x-axis direction in FIG. 5 moves toward the negative side in the x-axis direction, so that that part of the casting M3 which is near above the cooling portion is gripped by the gripper 108a.
  • the second draw-up machine 108 moves toward the positive side in the z-axis direction in sync with the first draw-up machine 107.
  • a position, in the z-axis direction, of that part of the casting M3 which is gripped by the second draw-up machine 108 be above the cooling portion but as low as possible. As the position gripped by the second draw-up machine 108 is lower, vibration of the retained molten metal M2 at the time when the casting M3 is gripped can be restrained more.
  • the casting M3 is laser-fusion cut between the first draw-up machine 107 and the second draw-up machine 108 (step ST5). More specifically, as illustrated in FIGS. 7, 8, the laser machining head 111 that stands by in an end of the casting M3 on the negative side in the x-axis direction is scanned toward the positive direction in the x-axis direction over that part of the casting M3 which is near above the cooling portion, so that the casting M3 is fusion cut by the laser beam LB.
  • a first product M31 gripped by the first draw-up machine 107 via the starter ST is separated from the casting M3.
  • the starter ST and the product M31 are released from the first draw-up machine 107 after that. Note that, as for the first product M31, it is necessary to cut off the starter ST therefrom.
  • step ST4 related to the second product, as illustrated in FIG. 11, the first draw-up machine 107 that stands by on the negative side relative to the casting M3 in the x-axis direction in FIG. 10 moves toward the positive side in the x-axis direction, so that that part of the casting M3 which is near above the cooling portion is gripped by the gripper 107a.
  • the first draw-up machine 107 moves toward the positive side in the z-axis direction in sync with the second draw-up machine 108.
  • next step ST5 as illustrated in FIG. 12, the laser machining head 111 that stands by in an end of the casting M3 on the positive side in the x-axis direction is scanned toward the negative side in the x-axis direction, so that the casting M3 is fusion cut by the laser beam LB.
  • the second product M32 directly gripped by the second draw-up machine 108 is separated from the casting M3.
  • the casting M3 is gripped by the first draw-up machine 107, so casting of a third product is continued.
  • the first draw-up machine 107 and the second draw-up machine 108 alternately, it is possible to continue casting while cutting off a product.
  • step ST3 the final product (YES in step ST3) in FIG. 3
  • casting is finished.
  • the casting speed is increased, and the retained molten rhetal M2 is pulled off.
  • the final product can be obtained without laser fusion cutting. That is, it is necessary to perform laser fusion cutting on the final product.
  • the free casting method according to Embodiment 1 can save a starter and time to attach the starter because it is not necessary to change the starter per product, and thus, the free casting method according to Embodiment 1 is excellent in low cost and productivity.
  • FIG. 13 is a plan view of a shape determining member 102 according to the modification of Embodiment 1.
  • the shape determining member 102 according to Embodiment 1 as illustrated in FIG. 2 is constituted by a single plate, so the thickness tl and the width wl of the molten metal passage portion 103 are fixed.
  • the shape determining member 102 according to the modification of Embodiment 1 includes four rectangular shape determining plates 102a, 102b, 102c, 102d as illustrated in FIG. 13.
  • the shape determining member 102 according to the modification of Embodiment 1 is divided into a plurality of plates. With such a configuration, the thickness tl and the width wl of the molten metal passage portion 103 can be changed. Further, the four rectangular shape determining plates 102a, 102b, 102c, 102d can move in the z-axis direction in sync with each other.
  • the shape determining plates 102a, 102b are placed side by side in the x-axis direction so as to be opposed to each other. Further, the shape determining plates 102a, 102b are placed at the same height in the z-axis direction. An interval between the shape determining plates 102a, 102b determines the width wl of the molten metal passage portion 103. Further, the shape determining plates 102a, 102b are independently movable in the x-axis direction, so the width wl can be changed.
  • a laser displacement meter SI may be provided on the shape determining plate 102a and a laser passive reflector S2 may be provided on the shape determining plate 102b, as illustrated in FIG. 13.
  • the shape determining plates 102c, 102d are placed side by side in the y-axis direction so as to be opposed to each other. Further, the shape determining plates 102c, 102d are placed at the same height in the z-axis direction. An interval between the shape determining plates 102c, 102d determines the thickness tl of the molten metal passage portion 103. Further, the shape determining plates 102c, 102d are independently movable in the y-axis direction, so the thickness tl can be changed. The shape determining plates 102a, 102b are placed so as to make contact with top faces of the shape determining plates 102c, 102d.
  • FIG. 14 is a schematic side view of the free casting apparatus according to Embodiment 2.
  • a laser machining head 111a and a laser machining head 111b are slidably connected to a first draw-up machine 107 and a second draw-up machine 108, respectively. Since the other configuration is similar to the free casting apparatus according to Embodiment 1, description thereof is omitted.
  • the first draw-up machine 107 includes a guide 107b extended in the x-axis direction, and the laser machining head 111a slides over the guide 107b in the x-axis direction.
  • a laser beam is generated by a laser oscillator 109a, and emitted from the laser machining head 111a via an optical fiber 110a.
  • the second draw-up machine 108 includes a guide 108b extended in the x-axis direction, and the laser machining head 111b slides over the guide 108b in the x-axis direction.
  • a laser beam is generated by a laser oscillator 109b, and emitted from the laser machining head 111b via an optical fiber 110b.
  • the laser machining heads 111a, 111b slide over the guides 107b, 108b, respectively, so a casting M3 can be automatically fusion cut in the horizontal direction. Accordingly, the laser machining heads 111a, 111b of the free casting apparatus according to Embodiment 1 can easily perform a position control as compared with the laser machining head 111 of the free casting apparatus according to Embodiment 1.
  • the present invention is not limited to the above embodiments, and various modifications can be made within a range that does not deviate from a gist of the present invention.
  • the present invention is applicable to an up-drawing continuous casting method that does not use the shape determining member 102, provided that the method is an up-drawing continuous casting method for drawing up molten metal by use of a starter ST.
  • the use of the shape determining member 102 makes it possible to form the casting M3 accurately, which is preferable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Continuous Casting (AREA)

Abstract

La présente invention concerne un procédé de coulée continue à étirage par le haut, qui selon un aspect de l'invention, est un procédé de coulée continue à étirage par le haut destiné à la formation d'une pièce coulée en étirant par le haut un métal fondu contenu dans un four de rétention, et comprenant : une étape d'étirage par le haut du métal fondu par une première machine à étirage par le haut par l'intermédiaire d'une amorce saisie par la première machine à étirage par le haut ; une étape de saisie, par une seconde machine à étirage par le haut, de la pièce coulée étirée par le haut par la première machine à étirage par le haut ; une étape de découpe par fusion de la pièce coulée entre la première machine à étirage par le haut et la seconde machine à étirage par le haut ; et une étape d'étirage par le haut du métal fondu par la seconde machine à étirage par le haut par l'intermédiaire de la pièce coulée saisie par la seconde machine à étirage par le haut.
PCT/IB2014/002850 2014-01-08 2014-12-22 Procédé de coulée continue à étirage par le haut et appareil de coulée continue à étirage par le haut Ceased WO2015104575A1 (fr)

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JP2014001754A JP6036710B2 (ja) 2014-01-08 2014-01-08 引上式連続鋳造方法及び引上式連続鋳造装置
JP2014-001754 2014-01-08

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
TWI664034B (zh) * 2017-03-06 2019-07-01 呂錦明 冷拉加工設備及其加工方法
CN110181017A (zh) * 2019-06-24 2019-08-30 江西鑫凯顺科技协同创新有限公司 一种物联网上引法铜铝材连铸机组
CN110227808A (zh) * 2019-07-03 2019-09-13 嘉兴市集珵机械有限公司 一种上引机的压紧轮结构

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