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EP4072751B1 - Dispositif de coulage et procédé de coulage - Google Patents

Dispositif de coulage et procédé de coulage Download PDF

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Publication number
EP4072751B1
EP4072751B1 EP20838331.5A EP20838331A EP4072751B1 EP 4072751 B1 EP4072751 B1 EP 4072751B1 EP 20838331 A EP20838331 A EP 20838331A EP 4072751 B1 EP4072751 B1 EP 4072751B1
Authority
EP
European Patent Office
Prior art keywords
melt
container
lance
melt container
receiving space
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.)
Active
Application number
EP20838331.5A
Other languages
German (de)
English (en)
Other versions
EP4072751A1 (fr
EP4072751C0 (fr
Inventor
Gerhard Sieglhuber
Harald SEHRSCHÖN
Johannes VOITHOFER
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.)
Fill GmbH
Original Assignee
Fill GmbH
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 Fill GmbH filed Critical Fill GmbH
Publication of EP4072751A1 publication Critical patent/EP4072751A1/fr
Application granted granted Critical
Publication of EP4072751C0 publication Critical patent/EP4072751C0/fr
Publication of EP4072751B1 publication Critical patent/EP4072751B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/28—Melting pots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/30—Accessories for supplying molten metal, e.g. in rations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/06—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B22D41/13—Ladle turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures

Definitions

  • the invention relates to a casting device and a method for casting melt.
  • the DE 10 2007 011 253 A1 discloses a casting device with a melt container for metallic materials.
  • An injector is arranged on the underside of the melt container and has an opening for discharging the melt.
  • a closing device is designed, which serves to close the opening.
  • the object of the present invention was to overcome the disadvantages of the prior art and to provide an improved device and a method for casting melt.
  • a lance in the sense of this document is seen as a spout with a narrowed cross-section in relation to the melt container.
  • the lance is at least partially tubular.
  • the device according to the invention has the advantage that melt can be introduced into casting molds more easily.
  • the melt transport device comprises a pivoting device by means of which the melt container can be tilted out of a vertical position. This has the advantage that the lance can be pivoted during the casting process, so that improved quality of the casting can be achieved.
  • the pivoting device has a horizontally oriented pivot bearing, by means of which the melt container can be pivoted about a horizontal axis of rotation.
  • the melt container can be easily brought into its correct angular position, particularly using a horizontally aligned swivel bearing.
  • the casting device comprises at least a first melt container and a second melt container, which are arranged on the melt transport device.
  • An embodiment is also advantageous, according to which it can be provided that the first melt container and the second melt container are designed identically. Particularly when casting identical cast workpieces, it can be achieved that both cast workpieces have the same quality.
  • first melt container and the second melt container it is possible for the first melt container and the second melt container to have a common pivot drive.
  • This has the advantage that, on the one hand, only a single swivel drive is used for both melt containers, which simplifies the casting device.
  • this measure can ensure that the first melt container and the second melt container are guided synchronously with one another despite the technically simplest possible means.
  • a distance between the lance of the first melt container and the lance of the second melt container can be adjusted.
  • This measure makes it possible to move the two lances of the two melt containers towards each other in order to absorb melt into the two melt containers and thus to immerse the lance in a melting crucible, so that both lances can be immersed in the melting crucible at the same time.
  • the distance between the two lances can be adjusted can be enlarged to each other so that the molds can be spaced at a sufficient distance and a lance can be inserted into each mold.
  • the lance is removably arranged on the melt container.
  • the lance can be coupled to the melt container by means of a quick-release fastener, in particular a bayonet fastener. This has the advantage that the lance can be replaced without tools and therefore as quickly and easily as possible.
  • an immersion aid is arranged on the underside of the lance.
  • the immersion aid is used to tear open the oxide skin on the surface of the melting crucible when the lance is immersed in a melting crucible, so that the lance can be dipped under the layer of the oxide skin to fill the melt container and, as a result, the oxide skin is not possible when filling the melt container enters the melt receiving space.
  • the melt transport device comprises a swivel arm robot on which the melt container is arranged.
  • This has the advantage that the melt container can be freely guided using such a swivel arm robot in order to move the melt container into the desired position. This is particularly advantageous for small cast workpieces, since precise positioning of the melt container is required and the mass of the melt container can also be kept low.
  • control is designed to be dependent on the filling level.
  • Such a system can, for example, be implemented using a flatness-based control approach and enable the adjustment of parameters in the control based on the actual mass and fill level of the melt.
  • an acceleration sensor is formed, which is coupled to the melt container. Using the acceleration sensor, the accelerations occurring at the melt container can be detected and, based on these detected acceleration values, the movement parameters of the melt container and/or the internal pressure in the melt receiving space can be adjusted.
  • At least one partition wall is formed in the melt container. This has the advantage that this measure allows the sloshing movement of the melt received in the melt receiving space to be kept as low as possible.
  • the partition wall can be arranged on the ceiling of the melt container and extend from above to below the target filling level.
  • the partition wall can be arranged directly in the melt receiving space and attached to a side wall of the melt receiving space.
  • the partitions are designed to be displaceable, so that they are designed to float on the melt, for example, or are designed to be displaceable by an actuator, not shown. This has the advantage that the melt surface can be calmed over a wide range of filling heights.
  • the floating body can be solidified melt areas that form a lid. It can also be slag or bound slag and melt and slag. Furthermore, it is also conceivable that media of different viscosity stabilize the surface. This is particularly advantageous if the lance is not completely emptied when melt is dispensed, but rather the filling quantity level is constantly within the melt receiving space during casting. This ensures that such a floating body does not settle in the melt receiving space.
  • At least one structural element is arranged on a ceiling of the melt container, wherein the structural element has a cross section that widens upwards, and wherein the structural element extends below the target filling quantity level.
  • the spout comprises a siphon, the siphon comprising a container which is open at the top, the container being displaceable relative to the lance, so that a pouring channel of the lance can be closed from the environment.
  • a gas line in which the gas valve is arranged is designed with a barrier for melt.
  • This has the advantage that melt moved by dynamic effects cannot penetrate into the gas line and contaminate the gas line there.
  • Such protection can be, for example, a grid, sieve or porous materials such as Flushing stones of melting furnaces that pass through gas but prevent a surge of melt caused by a sloshing movement.
  • the gas line is heated in the connection area to the melt receiving space in order to prevent the melt from solidifying in this area.
  • a mechanical closure is formed that prevents melt from entering the gas line.
  • the mechanical closure is designed as a float.
  • the mechanical closure is formed by a lump of slag which floats on the melt.
  • the invention also relates to a method for casting melt according to independent claim 9.
  • the method according to the invention has the advantage that cast workpieces can be cast with improved quality.
  • the melt container when the at least one cast workpiece is cast, the melt container is tilted out of a vertical position.
  • calm watering can be achieved.
  • the melt container and also the casting mold are moved, in particular that the melt container and the casting mold are moved simultaneously with one another or relative to one another, in particular that the melt container and the casting mold are at the same angle and/or moved synchronously with each other.
  • This has the advantage that a surprisingly high quality of the cast workpiece can be achieved.
  • this measure can achieve particularly smooth casting of the cast workpiece.
  • the casting device comprises at least a first melt container and a second melt container, wherein during casting a first cast workpiece from the first melt container and a second cast workpiece from the second melt container are cast simultaneously.
  • the casting device comprises at least a first melt container and a second melt container, a distance between the lance of the first melt container and the lance of the second melt container being adjustable, the distance between the lance of the first melt container being used to fill the melt container with melt and the lance of the second melt container is reduced, so that both lances are simultaneously immersed in a common melting crucible and wherein when casting a first cast workpiece and a second cast workpiece, the distance between the lance of the first melt container and the lance of the second melt container is increased, the lance of the first Melt container is introduced into a first mold and the lance of the second melt container is inserted into a second mold.
  • This has the advantage that the melt containers can be easily filled and the molds can be at a sufficiently large distance from one another.
  • the melt from the melt container is admitted into the casting mold in a first process step at a first inflow speed until the pouring opening is at least partially immersed in the melt introduced into the casting mold and that in a second process step the melt is let into the mold at a second inflow speed, the second inflow speed being greater than the first inflow speed.
  • the lance moves on the surface of the melting crucible in such a way that in particular pivoted, the oxide skin located on the surface is torn open and in a second process step the lance is immersed in the torn area of the oxide skin into the melt located in the melting crucible.
  • the oxide skin is torn open using the immersion aid.
  • melt container when filling the melt container with melt, so much more melt is taken up into the melt receiving space that when the melt container is filled again with melt, the level of the melt surface of the melt remaining in the melt receiving space is above the lance, in particular within the melt receiving space .
  • This has the advantage that the oxide skin on the melt surface remains in an area with an approximately constant cross-section and is therefore not excessively deformed. This means that the oxide skin is not mixed with the melt.
  • an internal pressure in the melt receiving space is reduced when the melt container is accelerated upwards in a vertical direction and that the internal pressure in the melt receiving space is increased again when the vertical acceleration of the melt container is ended.
  • the adjustment of the interior pressure in the melt receiving space takes place shortly before the start of a relevant movement or simultaneously with the movement of the melt container.
  • the acceleration occurring on the melt container during a casting cycle is determined by means of an acceleration sensor and that the interior pressure in the melt receiving space is adjusted during a subsequent casting cycle based on the determined acceleration values.
  • a necessary adjustment of the interior pressure of the melt receiving space is calculated in a simulation to compensate for accelerations of the melt container and that the interior pressure of the melt receiving space is adjusted during a casting cycle on the basis of the calculations.
  • the melt container is actively tilted when the melt container is accelerated in a horizontal direction. This measure can counteract a sloshing movement of the melt.
  • the acceleration of the melt container is specifically changed during the movement of the melt container in order to compensate for a sloshing movement of the melt received in the melt receiving space and thus to calm the melt. This has the advantage that this measure can prevent unwanted pouring of the melt.
  • An advantageous embodiment of the system is when the planned movement of the swivel arm robot and the accelerations of the swivel arm robot are used to control the negative pressure.
  • the target values and/or actual values of movement, movement speed and acceleration determined in the robot program can be used in a pre-control of the negative pressure change.
  • the values can also be determined by a calculation program on a computer for the movement programmed on the swivel arm robot.
  • the surface of the siphon should be as large as possible.
  • the surface of the melt receiving space should be as large as possible so that the height of the melt column remains small.
  • a narrowing of the melt holding space in the area of the target filling level makes sense because the area ratio to the siphon becomes smaller. The smaller the remaining air volume in the melt receiving space in a melt container filled with melt, the better this is when the melt container accelerates during a movement of the melt container.
  • Fig. 1 shows a first exemplary embodiment of a melt transport device 1, which is used to transport melt 2.
  • the melt transport device 1 has a melt container 3, in which a melt receiving space 4 is formed, which serves to hold the melt 2.
  • the melt receiving space 4 has a surface 38 on its inside, which is in contact with the melt 2 when the melt receiving space 4 is filled.
  • the melt transport device 1 includes a spout 5, which is coupled to the melt container 3.
  • the spout 5 can be designed as an integral part of the melt container 3.
  • the spout 5 is designed as a separate component, which is coupled to the melt container 3.
  • the spout 5 has a pouring opening 6 through which the melt 2 received in the melt container 3 can flow out of the melt transport device 1 into a casting mold.
  • the pouring opening 6 can have a circular cross section. Furthermore, it is also conceivable that the pouring opening 6 has a square cross section. In addition, it is also conceivable that the pouring opening 6 has a rectangular cross section, in particular a longitudinal extent of the pouring opening 6, which runs normal to the cutting plane, can have a large extent. For example, the longitudinal extent of the pouring opening 6 can be up to 2000mm, in particular up to 500mm. This is particularly advantageous for elongated cast workpieces, such as cylinder blocks or cylinder heads.
  • a gas valve 7 is formed, which is fluidly connected to the melt receiving space 4 and which is designed to regulate the gas entry into the otherwise gas-tight melt receiving space 4.
  • the gas valve 7 is arranged above a filling level maximum 8, so that no melt 2 can flow into the gas valve 7.
  • the filling level maximum is selected so that when the melt container 3 is filled with melt 2 up to the filling level maximum 8, a gas-filled space remains in the melt receiving space 4, in which a pressure can be adjusted using the gas valve 7.
  • a pressure detection means 9 can be provided, by means of which an internal pressure in the melt receiving space 4 can be detected.
  • the gas pressure in the melt receiving space 4 can thus be adjusted specifically using the gas valve 7.
  • the melt transport device 1 has a fill level sensor 10, which serves to detect an actual fill quantity level 11.
  • the actual filling quantity level 11 can thus be continuously recorded and compared with a target filling quantity level 12.
  • a weighing cell 39 can be designed, by means of which the weight and thus the fill level of the melt receiving space 4 can be recorded.
  • the melt transport device 1 has a siphon 13 which has a reservoir 14 which is arranged between the melt receiving space 4 and the pouring opening 6. Furthermore, a siphon wall 15 is formed, which projects into the reservoir 14 in such a way that when the reservoir 14 is filled with melt up to an overflow level 17, the melt receiving space 4 is closed gas-tight with respect to the outside of the melt container 16.
  • the siphon 13 is designed in the spout 5 so that the reservoir 14 has the overflow level 17, with the siphon wall 15 being designed such that it has a lower edge 32 of the siphon wall.
  • the siphon wall 15 projects into the reservoir 14 in such a way that a lower edge 32 of the siphon wall is arranged at a lower level than the overflow level 17.
  • Fig. 1 the melt container 3 is shown partially filled with melt 2. How out Fig. 1 As can be seen, the structure described results in a first melt surface 18, which is arranged on the outside of the melt container 16 or is assigned to it. Further a second melt surface 19 is formed, which is arranged in the melt receiving space 4 of the melt container 3. The second melt surface 19 corresponds to the filling level 11. The ambient pressure of the melt container 3 acts on the first melt surface 18. The internal pressure of the melt receiving space 4 acts on the second melt surface 19.
  • the first melt surface 18 is slightly below the overflow level 17. This means that spilling of the melt 2 can be avoided as best as possible.
  • This level difference can be achieved, for example, by reducing the pressure in the melt receiving space 4.
  • the melt container 3 can be shaken or slightly tilted immediately after filling in order to achieve this level difference immediately after the melt container 3 has been filled.
  • the melt container 3 it is also possible for the melt container 3 to be manipulated while the level of the first melt surface 18 is the same as the overflow level 17.
  • the spout 5 is designed in the form of a lance 20 and the siphon 13 is arranged on the underside of the lance 20.
  • the diameter of the lance 20 is shown to be excessively large to improve clarity.
  • the lance 20 is designed to be slimmer than shown and therefore has a greater length compared to its diameter.
  • siphon 13 is integrated directly into the lance 20.
  • a siphon 13 integrated into the lance 20 can work according to the same operating principle as described here.
  • the siphon 13 can comprise an upwardly open container 21, which is coupled to the spout 5 by means of struts 22.
  • an upper edge of the container 21 simultaneously defines the overflow level 17.
  • the second melt surface 19 lowers, as a result of which the melt 2 located in the melt receiving space 4 runs through a pouring channel 23 into the reservoir 14, whereby the first melt surface 18 is raised. The first The melt surface 18 rises until the melt 2 runs out over the overflow level 17.
  • the container 21, which is open at the top, is arranged on the spout 5 in a changeable manner.
  • an immersion aid 47 is arranged on the underside of the lance 20a, 20b.
  • the dipping aid 47 serves to tear open the oxide skin located on the surface of the melting crucible 25 when the lance 20a, 20b is dipped into the melting crucible 25, so that the lance 20a, 20b can be dipped under the layer of the oxide skin to fill the melt container and further When filling the melt container 3, the oxide skin should, if possible, not get into the melt receiving space 4.
  • the immersion aid 47 has a pointed shape, so that tearing open the oxide skin is made easier.
  • the underside of the lance 20a, 20b or the immersion aid 47 is designed in such a way that they do not have any protruding surfaces, so that when the lance 20a, 20b is pulled out of the crucible 25, there is as little oxide skin as possible on the
  • Lance 20a, 20b adheres.
  • all upwardly directed surfaces of the lance 20a, 20b are designed to be conical or to point obliquely downwards, so that the oxide skin is rejected when the lance 20a, 20b is pulled out.
  • Fig. 2a As can be seen, it can be provided that the melt 2 is provided in a melting crucible 25 of a melting furnace 24 and that the melt container 3 is positioned above the melting crucible 25.
  • the melt container 3 can be at least partially immersed in the melt 2 arranged in the melting crucible 25 in a further process step, so that the pouring opening 6 is immersed in the melting crucible 25 below the crucible filling level 27 of the melt 2. If the gas valve 7 is now opened or is already open during immersion, the melt 2 can flow into the melt receiving space 4 of the melt container 3 via the pouring opening 6. This position of the melt container 3 can also be referred to as the filling position 26.
  • the actual filling level 11 will adapt to the furnace filling level 27 when the melt container 3 is filled.
  • the gas valve 7 is subsequently closed and the melt container 3 is raised, the actual filling level 11 will decrease until the negative pressure in the melt receiving space 4 is sufficiently large to keep the melt 2 at the same level due to the pressure difference between the interior pressure in the melt receiving space 4 and the ambient pressure.
  • the gas valve 7 can be closed and the melt container 3, as in Fig. 2c visible, can be raised again.
  • melt container 3 When the melt container 3 is lifted, as much melt 2 flows from the melt receiving space 4 back into the melting crucible 25 until a pressure that is reduced compared to the environment is established in the melt receiving space 4, which holds the melt in the melt receiving space 4.
  • melt 2 is then drained from the melt receiving space 4 by opening the gas valve 7 until a desired fill level of melt 2 in the melt receiving space 4 is reached.
  • the desired fill level of melt 2 can be selected in this way
  • This desired level of melt 2 in the melt receiving space 4 is selected so that after casting the cast workpiece or workpieces, a remainder of melt 2 remains in the melt receiving space 4.
  • melt container 3 can be transported to its casting position.
  • Fig. 3a As can be seen, it can be provided that immediately before the melt container 3 is refilled, a remainder of melt 2, which has an oxide skin formed on the melt surface 19, is located in the melt receiving space 4 of the melt container 3. In other words, the melt 2 was not completely poured out during the previous casting process. Of course, several cast workpieces can also have been cast, although not all of the melt 2 located in the melt receiving space 4 of the melt container 3 was consumed when the last cast workpiece was cast.
  • melt container 3 only dips so far into the melting crucible 25 that the pouring opening 6 is below the crucible filling level 27.
  • the melt receiving space 4 can be evacuated by means of a vacuum pump 28, whereby the melt 2 is drawn into the melt receiving space 4.
  • the gas valve 7 can then be closed in order to keep the actual filling level 11 in the melt receiving space 4 at a constant level during the transport of the melt transport device 1.
  • the melt transport device 1 is filled by means of a low-pressure furnace 33 known to those skilled in the art.
  • a riser pipe 34 which projects into the melting crucible 25 of the low-pressure furnace 33, can be coupled directly to the pouring opening 6 in order to establish a flow connection between the riser pipe 34 and the melt receiving space 4. If the gas valve 7 is opened during the filling process, the function of the low-pressure furnace 33 can be used to push the melt 2 upwards in the riser pipe 34 until the melt receiving space 4 is filled with melt 2 up to its target filling level 12.
  • the riser pipe 34 of the low-pressure furnace 33 and the spout 5 are coupled to one another by means of a coupling 31.
  • the siphon 13 is tubular.
  • Various design options for the pouring opening 6 are shown.
  • the pouring opening 6 is round. Such a shape of the pouring opening 6 results when the pipe which forms the siphon 13 is cut off normal to the pipe center axis.
  • a drip nose 35 is formed on the pouring opening 6.
  • the drip nose 35 serves to keep the oxide adhesion to the pouring opening 6 as low as possible when casting a cast workpiece.
  • the pouring opening 6 also, as in the exemplary embodiment Fig. 6 , arranged at right angles to the pipe center axis.
  • the pipe is in the exemplary embodiment Fig. 6 and Fig. 7 in the area of the pouring opening 6 when the lance 20 is in a vertical position, it is slightly inclined downwards, with a pipe end angle 36 being formed at an angle smaller than 90°.
  • the pipe is cut obliquely in the area of the pouring opening 6, so that the pouring opening 6 is oval.
  • the pouring opening 6 is fan-shaped and thus has a greater extent in its width than the extent in its height.
  • a pouring opening 6 designed in this way is particularly suitable for casting wide cast workpieces.
  • FIG. 10 A further and possibly independent embodiment of the casting device 37 is shown, with the same reference numbers or component names as in the previous ones for the same parts Figures 1 to 9 be used. Around To avoid unnecessary repetitions, refer to the detailed description in the preceding Figures 1 to 9 pointed out or referred to.
  • Fig. 10 shows a first embodiment of a casting device 37 for casting cast workpieces. How out Fig. 10 As can be seen, it can be provided that the melt transport device 1 has a first melt container 3a and a second melt container 3b.
  • the first melt container 3a has a first melt receiving space 4a and a first spout 5a in the form of a lance 20a located at the bottom of the first melt container 3a.
  • the spout 5a has a pouring opening 6a.
  • the second melt container 3b can be designed to be identical to the first melt container 3a.
  • the second melt container 3b has a second melt receiving space 4b and a second spout 5b in the form of a lance 20b located at the bottom of the second melt container 3b.
  • the spout 5b has a pouring opening 6b.
  • the melt transport device 1 can be designed such that both melt containers 3a, 3b can be moved simultaneously and synchronously with one another. In particular, it can be provided that both melt containers 3a, 3b are moved together by means of common drive devices. As a result, the structure of the melt transport device 1 can be kept as simple as possible.
  • the casting device 37 also includes a casting mold 29, which has a mold cavity 30.
  • a first mold 29a is assigned to the first melt container 3a and a second mold 29b is assigned to the second melt container 3b.
  • a pivoting device 40 which has a pivot bearing 41, by means of which the melt containers 3a, 3b can be pivoted about a horizontal axis of rotation 42.
  • each of the melt containers 3a, 3b has its own pivot drive 43 has. The two melt containers 3a, 3b can thus be pivoted individually and independently of one another.
  • the mold 29 can also be pivoted about a horizontal axis.
  • the mold 29 and the melt container 3 can thus be pivoted at the same time.
  • a distance adjustment device 44 is formed, by means of which a distance 45 of the lance 20a of the first melt container 3a and the lance 20b of the second melt container 3b can be adjusted to one another.
  • the distance adjustment device 44 can be as follows Fig. 10 can be seen, for example in the form of a linear adjustment device.
  • the distance adjustment device 44 is designed, for example, in the form of a fastening arm for receiving the melt container 3a, 3b, with a change in the distance 45 being achieved by pivoting the fastening arm and thus the melt container 3a, 3b about a vertical axis can be.
  • FIG. 11 A further and possibly independent embodiment of the casting device 37 is shown, with the same reference numbers or component names as in the previous ones for the same parts Figures 1 to 10 be used. In order to avoid unnecessary repetitions, please refer to the detailed description in the previous sections Figures 1 to 10 pointed out or referred to.
  • the in Fig. 11 Casting device 37 shown has a similar structure to that in Fig. 10 illustrated casting device 37.
  • both melt containers 3a, 3b are arranged on a common receptacle, the pivot bearing 41 being designed such that both melt containers 3a, 3b can be pivoted at the same time about the horizontal axis of rotation 42 by means of the one pivot drive 43.
  • Fig. 12 the lance 20 is coupled to the melt container 3 by means of a quick-release fastener 46, in particular by means of a bayonet fastener.
  • a quick-release fastener 46 in particular by means of a bayonet fastener.
  • a shaped element is formed in the melt container 3, with a recess corresponding to the shaped element being formed on the lance 20. If the lance 20 is placed on the melt container 3 and rotated through a certain angle, the lance 20 can be locked on the melt container 3 using the quick-release fastener 46.
  • a further and possibly independent embodiment of the melt transport device 1 is shown, with the same reference numbers or component names as in the previous ones for the same parts Figures 1 to 13 be used.
  • the same reference numbers or component names as in the previous ones for the same parts Figures 1 to 13 be used.
  • Fig. 13 As can be seen, it can be provided that several partition walls are formed in the melt receiving space 4 of the melt container 3. The partitions can divide the melt receiving space 4 into several small chambers. Furthermore, it can be provided that a flow opening 49 is formed in the partition walls, which serves to allow melt 2 to flow between the individual chambers or to the pouring opening 6.
  • an acceleration sensor 50 is arranged on the melt container 3.
  • the acceleration sensor 50 can be designed, for example, in the form of a gyro sensor.
  • an actuator 54 is designed, by means of which the container 21 can be displaced relative to the lance 20a, 20b. As a result, a pouring channel 23 of the lance 20a, 20b can be closed to the environment.
  • the actuator 54 can be designed, for example, in the form of a cylinder.
  • the actuator 54 is designed in the form of an electric motor drive.
  • the actuator 54 is designed in the form of an electric motor drive.
  • melt container 3 is arranged on a swivel arm robot 53.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (15)

  1. Dispositif de coulée (37) comprenant un dispositif de transport de fonte (1) avec au moins un récipient de fonte (3a, 3b) dans lequel un espace de logement de fonte (4a, 4b) et un bec verseur (5a, 5b) est réalisé sous la forme d'une lance (20a, 20b) située en bas sur le récipient de fonte (3a, 3b), dans lequel le bec verseur (5a, 5b) comprend une ouverture de déversement (6a, 6b), qui est relié en écoulement avec l'espace de logement de fonte (4a, 4b), dans lequel un siphon (13) est réalisé sur un côté inférieur de la lance (20), caractérisé en ce que la lance (20a, 20b) est disposée de manière amovible sur le récipient de fonte (3a, 3b).
  2. Dispositif de coulée (37) selon la revendication 1, dans lequel le dispositif de coulée (37) comprend au moins un premier récipient de fonte (3a) et un deuxième récipient de fonte (3b), qui sont disposés sur le dispositif de transport de fonte (1).
  3. Dispositif de coulée (37) selon la revendication 2, dans lequel le premier récipient de fonte (3a) et le deuxième récipient de fonte (3b) sont conçus de manière identique.
  4. Dispositif de coulée (37) selon la revendication 2 ou 3, dans lequel le premier récipient de fonte (3a) et le deuxième récipient de fonte (3b) comprennent un entraînement pivotant (43) commun.
  5. Dispositif de coulée (37) selon l'une des revendications 2 à 4, dans lequel un dispositif de réglage de distance (44) est prévu, au moyen duquel une distance (45) entre la lance (20a) du premier récipient de fonte (3a) et la lance (20b) du deuxième récipient de fonte (3b) peut être réglée.
  6. Dispositif de coulée (37) selon la revendication 1, dans lequel la lance (20a, 20b) peut être couplée avec le récipient de fonte (3a, 3b) au moyen d'une fermeture rapide (46), plus particulièrement une fermeture à baïonnette.
  7. Dispositif de coulée (37) selon l'une des revendications précédentes, dans lequel un capteur d'accélération (50) est prévu, qui est couplé avec le récipient de fonte (3a, 3b).
  8. Dispositif de coulée (37) selon l'une des revendications précédentes, dans lequel le bec verseur (5a, 5b) comprend un siphon (13), dans lequel le siphon (13) comprend un récipient (21) ouvert vers le haut, dans lequel le récipient (21) est coulissant par rapport à la lance (20a, 20b), de sorte qu'un canal de déversement (23) de la lance (20a, 20b) peut être fermé par rapport à l'environnement.
  9. Procédé de coulage de fonte (2) au moyen d'un récipient de fonte (3a, 3b), dans lequel un espace de logement de fonte (4a, 4b) est prévu, dans lequel le récipient de fonte (3a, 3b) comprend un bec verseur (5a, 5b) sous la forme d'une lance (20a, 20b) située en bas sur le récipient de fonte (3a, 3b), dans lequel un siphon (13) est réalisé sur un côté inférieur de la lance (20), dans lequel le procédé comprend les étapes suivantes :
    - remplissage du récipient de fonte (3a, 3b) avec de la fonte (2), dans lequel la fonte (2) est introduite, par l'intermédiaire d'une ouverture de déversement (6a, 6b) de la lance (20a, 20b), d'un creuset de fusion (25) vers l'espace de logement de fonte (4a, 4b) du récipient de fonte (3a, 3b) ;
    - coulage d'au moins une pièce coulée avec de fonte (2) provenant du récipient de fonte (3a, 3b), dans lequel la fonte (2) logée dans l'espace de logement de fonte (4a, 4b) est introduite, par l'intermédiaire de l'ouverture de déversement (6a, 6b) de la lance (20a, 20b), dans un moule de coulée (29a, 29b) ;
    - nouveau remplissage du récipient de fonte (3a, 3b) avec de la fonte (2), caractérisé en ce que la lance (20a, 20b) est disposée de manière amovible sur le récipient de fonte (3a, 3b), dans lequel la lance (20a, 20b) peut être remplacée simplement lorsque la lance (20a, 20b) est endommagée ou lorsque la lance (20a, 20b) a été encrassée de manière excessive par la fonte (2).
  10. Procédé selon la revendication 9, dans lequel le dispositif de coulée (37) comprend au moins un premier récipient de fonte (3a) et un deuxième récipient de fonte (3b), dans lequel, lors du coulage d'une première pièce de coulée à partir du premier récipient de fonte (3a) et d'une deuxième pièce coulée à partir du deuxième récipient de fonte (3b), le versement est effectué simultanément.
  11. Procédé selon l'une des revendications 9 à 10, dans lequel le dispositif de coulée (37) comprend au moins un premier récipient de fonte (3a) et un deuxième récipient de fonte (3b), dans lequel une distance (45) entre la lance (20a) du premier récipient de fonte (3a) et la lance (20b) du deuxième récipient de fonte (3b) peut être réglée, dans lequel, pour le remplissage des récipients de fonte (3a, 3b) avec de la fonte (2), la distance (45) entre la lance (20a) du premier récipient de fonte (3a) et la lance (20b) du deuxième récipient de fonte (3b) est réduite, de sorte que les deux lances (20a, 20b) plongent simultanément dans un creuset de fusion (25) commun et dans lequel, lors du coulage d'une première pièce coulée et d'une deuxième pièce coulée, la distance (45) entre la lance (20a) du premier récipient de fonte (3a) et la lance (20b) du deuxième récipient de fonte (3b) est augmentée, dans lequel la lance (20a) du premier récipient de fonte (3a) est introduite dans un moule de coulée (29a) et la lance (20b) du deuxième récipient de fonte (3b) est introduite dans un deuxième moule de coulée (29b).
  12. Procédé selon l'une des revendications 9 à 11, dans lequel, lors du coulage de l'au moins une pièce coulée, la fonte (2) provenant du récipient de fonte (3a, 3b) est introduite, dans une première étape du procédé, avec une première vitesse d'entrée, dans le moule de coulée (29a, 29b), jusqu'à ce que l'ouverture de déversement (6) plonge au moins partiellement dans la fonte (2) introduite dans le moule de coulée (29a, 29b) et, dans une deuxième étape du procédé, la fonte (2) est introduite, avec une deuxième vitesse d'entrée, dans le moule de coulée (29a, 29b), dans lequel la deuxième vitesse d'entrée est supérieure à la première vitesse d'entrée.
  13. Procédé selon l'une des revendications 9 à 12, dans lequel, lors du remplissage du récipient de fonte (3) avec de la fonte (2), une quantité de fonte (2) est logée dans l'espace de logement de fonte (4) de sorte que, lors d'un nouveau remplissage du récipient de fonte (3) avec de la fonte (2) le niveau de la surface de fonte (19) de la fonte restant dans l'espace de logement de fonte (4) se trouve au-dessus de la lance (20), plus particulièrement à l'intérieur de l'espace de logement de fonte (4).
  14. Procédé selon l'une des revendications 9 à 13, dans lequel le récipient de fonte (3a, 3b) est basculé activement lorsque le récipient de fonte (3a, 3b) est accéléré dans une direction horizontale.
  15. Procédé selon l'une des revendications 9 à 14, dans lequel, pendant le déplacement du récipient de fonte (3a, 3b), l'accélération du récipient de fonte (3a, 3b) est modifiée de manière ciblée afin de compenser un mouvement de clapotis de la fonte (2) logée dans l'espace de logement de fonte (4a, 4b) et donc afin d'apaiser la fonte (2).
EP20838331.5A 2019-12-13 2020-12-11 Dispositif de coulage et procédé de coulage Active EP4072751B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA51096/2019A AT523252A1 (de) 2019-12-13 2019-12-13 Gießvorrichtung umfassend eine Schmelzetransportvorrichtung mit zumindest einem Schmelzebehälter
PCT/AT2020/060447 WO2021113893A1 (fr) 2019-12-13 2020-12-11 Dispositif de coulée comprenant un dispositif de transport de bain de fusion comportant au moins un récipient pour bain de fusion

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EP4072751C0 EP4072751C0 (fr) 2023-09-27
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AT526114B1 (de) 2022-05-10 2024-06-15 Fill Gmbh Vorheizstation zum Vorheizen einer Schmelzetransportvorrichtung
WO2024007045A1 (fr) * 2022-07-07 2024-01-11 Fill Gesellschaft M.B.H. Dispositif de transport de matière fondue, ainsi que dispositif de transport de matière fondue équipé de la lance et procédé de fabrication d'une lance pour le dispositif de transport de matière fondue
AT526300B1 (de) * 2022-07-07 2024-08-15 Fill Gmbh Schmelzetransportvorrichtung, sowie eine mit der Lanze ausgestattete Schmelzetransportvorrichtung, sowie ein Verfahren zum Herstellen einer Lanze für die Schmelzetransportvorrichtung
CN118527622B (zh) * 2024-05-13 2024-10-29 苏州埃博斯电气有限公司 新能源汽车线束端子压铸成型装置及其成型工艺

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EP3378582A1 (fr) * 2015-11-17 2018-09-26 Posco Équipement de coulée et procédé de coulée

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EP4072751A1 (fr) 2022-10-19
WO2021113893A1 (fr) 2021-06-17
EP4072751C0 (fr) 2023-09-27
AT523252A1 (de) 2021-06-15

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