EP4072750A1 - VERFAHREN ZUM GIEßEN VON SCHMELZE MITTELS EINES SCHMELZEBEHÄLTERS IN WELCHEM EIN SCHMELZEAUFNAHMERAUM AUSGEBILDET IST - Google Patents
VERFAHREN ZUM GIEßEN VON SCHMELZE MITTELS EINES SCHMELZEBEHÄLTERS IN WELCHEM EIN SCHMELZEAUFNAHMERAUM AUSGEBILDET ISTInfo
- Publication number
- EP4072750A1 EP4072750A1 EP20838330.7A EP20838330A EP4072750A1 EP 4072750 A1 EP4072750 A1 EP 4072750A1 EP 20838330 A EP20838330 A EP 20838330A EP 4072750 A1 EP4072750 A1 EP 4072750A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- melt
- receiving space
- container
- lance
- crucible
- 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.)
- Granted
Links
- 239000000155 melt Substances 0.000 title claims abstract description 311
- 238000005266 casting Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005429 filling process Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 230000000737 periodic effect Effects 0.000 claims description 9
- 238000007654 immersion Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 14
- 238000011109 contamination Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 101100512901 Caenorhabditis elegans mes-4 gene Proteins 0.000 description 1
- 101100512902 Drosophila melanogaster Mes-4 gene Proteins 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000772 tip-enhanced Raman spectroscopy Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- B22D11/10—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
- 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
- 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 method for pouring melt by means of a Schmelzebereheatl age in which a melt receiving space is formed.
- DE 102007 011 253 A1 discloses a casting device with a melt container for metallic materials.
- An injector is arranged on an underside of the melt container and has an opening for discharging the melt. Furthermore, a United locking device is formed, which is used 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 pouring melt.
- the invention relates to a method for pouring melt by means of a melt container in which a melt receiving space is formed, the melt container having a spout in the form of a lance located at the bottom of the melt container, the method comprising the following method steps:
- melt container When the melt container is filled with melt, more melt is received in the melt receiving space than is required when casting the cast workpiece, so that after the end of the casting process of the cast workpiece, a remainder of melt, which has an oxide skin formed on the melt surface, is in the melt receiving space of the melt container remains.
- the method according to the invention has the advantage that the oxide skin that is formed is not introduced into the casting mold. As a result, the quality of the cast workpiece can be improved. Furthermore, the method according to the invention has the advantage that the oxide skin does not get into the spout of the melt container, which means that contamination of the spout of the melt container can be prevented. In particular, it can thereby be achieved that the melt container remains functional over a longer period of time, since contamination of the spout would reduce the functionality of the melt container for future casts. In addition, the measures according to the invention can prevent oxide skin residues or melt residues from freezing in the sink. Particularly with aluminum or aluminum alloys, an oxide skin forms very quickly on the surface.
- the lance is immersed in a crucible filled with melt that the pouring opening of the lance is below the level of the tie during the entire filling process.
- This has the advantage that by dipping the lance into the crucible filled with melt, the melt can be introduced into the melt receiving space of the melt container via the lance, which also functions as a spout.
- the lance can be immersed so deeply into the crucible that the melt penetrates into the melt receiving space of the melt container through the action of the communicating vessels from the crucible due to gravity.
- a negative pressure can be applied in the melt receiving space of the melt container, as a result of which the melt is drawn from the crucible into the melt receiving space. Furthermore, it can be provided that during and / or immediately before the lance is immersed in the melting crucible, at least part of the remaining melt located in the melt receiving space of the melt container is drained into the melting crucible. This has the advantage that the drained melt breaks through or displaces the oxide skin in the crucible, so that when the lance is immersed in the crucible, the oxide skin is pushed away from the lance and the oxide skin can thus be prevented from sticking to the lance. On the one hand, this has the surprising advantage that the quality of the melt received in the melt receiving space can be improved.
- this measure can prevent the oxide skin in the melting crucible from clogging the lance.
- these measures have the advantage that the oxide skin located in the crucible does not adhere to the outside of the lance, as a result of which the durability of the lance can be improved.
- the melt receiving space of the melt container has a non-wettable surface, in particular a ceramic surface, to which the oxide skin of the melt does not adhere.
- melt container when the melt container is filled with melt, between 1% and 30%, in particular between 5% and 20%, preferably between 10% and 15%, more melt is taken up in the melt receiving space than is required for casting the cast workpiece.
- a filling in this range of values results in a surprisingly good efficiency of the casting process.
- freezing of the melt can be avoided particularly efficiently and a good quality of the melt can be achieved.
- melt receiving space of the melt container is emptied completely at periodic intervals and / or before the melt container is shut down, and the oxide skin is blown out of the melt receiving space by means of a gas surge.
- the oxide skin located on the surface of the melt in the melt receiving space is sucked off at periodic intervals and / or before the melt container is shut down. This has the advantage that even when the melt container is shut down, no oxide skin remains in the melt receiving space or that the melt receiving space can be thoroughly cleaned at periodic intervals.
- the oxide skin located in the melt receiving space on the surface of the melt is drained at periodic intervals and / or before the melt container is shut down via an oxide skin drainage opening formed in the melt container. This has the advantage that even when the melt container is shut down, no oxide skin remains in the melt receiving space or that the melt receiving space can be thoroughly cleaned out at periodic intervals.
- the melt receiving space is designed in such a way that it is sealed gas-tight when it is at least partially filled with melt, a gas valve being formed by means of which gas can be introduced into the melt receiving space or discharged from it, with when filling the melt container with Melt the gas valve is open so that the melt can flow into the melt receiving space via the lance from the crucible, and after the melt inflow process the gas valve is closed and then, with the gas valve closed, as much melt is drained back into the crucible via the lance from the melt receiving space until a negative pressure is established which is sufficiently large to keep the remaining melt in the melt receiving space.
- the melt container does not have to be designed to be able to generate negative pressure in the melt receiving space, but that only one valve is sufficient for introducing gas into the melt receiving space or for releasing gas from the melt receiving space.
- the melt is pressed into the melt receiving space by means of a pressure line, such as the line of a low-pressure furnace, which is coupled to the lance.
- the melt container is immersed so deeply into a crucible filled with melt that the melt flows into the crucible via the lance due to the force of gravity due to the communicating vessels.
- the melt from the melt container is let 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 In the process step, the melt is admitted into the casting mold at a second inflow speed, the second inflow speed being greater than the first inflow speed.
- the lance when the melt container is filled with melt in a first process step, the lance is moved, in particular pivoted, on the surface of the crucible in such a way that the oxide skin on the surface is torn open and in a second process step the lance dips into the melt in the crucible in the torn area of the oxide skin.
- the oxide skin is torn open by means of the immersion aid.
- a spout with a cross section that is narrowed in relation to the melt container is seen as a lance in the context of this document.
- the lance is tubular at least in some areas.
- melt container when the melt container is filled with melt, so much more melt is taken up in 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 above the lance, in particular within the melt receiving space lies.
- This has the advantage that the oxide skin located on the melt surface is in an area with an approximately constant cross section remains and thus is not excessively deformed. As a result, the oxide skin is not mixed with the melt.
- FIG. 1 shows a schematic sectional illustration of a first exemplary embodiment of a melt transport device with a siphon
- 2 shows individual method steps of a first-time filling process for filling a melt receiving space with melt
- 3 shows individual method steps of a renewed filling process for filling a melt receiving space with melt
- Fig. 5 is a schematic representation of a further alternative filling process for Fül len a melt receiving space with melt using a low-pressure furnace
- FIG. 6 shows a first variant embodiment of a pouring opening
- FIG. 11 shows a second exemplary embodiment of a casting device
- FIG. 12 shows an exemplary embodiment of a quick-release fastener for coupling a fance to a melt container.
- the same parts are provided with the same reference numerals or the same component names, whereby the disclosures contained in the entire description can be applied accordingly to the same parts with the same reference numerals or the same component names.
- the position details chosen in the description, such as above, below, side, etc., also relate to the figure immediately described and shown and these position details are to be transferred accordingly to the new position in the event of a change in position.
- 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 is used to receive the melt 2.
- the melt receiving space 4 has on its inside a surface 38 which is in contact with the melt 2 in the filled state of the melt receiving space 4.
- the melt transport device 1 comprises a spout 5 which is coupled to the melt container 3.
- the spout 5 can be designed as an integral part of the melt ze mattersers 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 for the pouring opening 6 to have a rectangular cross section, wherein in particular a longitudinal extension of the pouring opening 6, which runs normal to the cutting plane, can have a large extension.
- the longitudinal extent of the pouring opening 6 can be up to 2000mm, in particular up to 500mm. This is particularly advantageous in the case of elongated cast workpieces such as cylinder blocks or cylinder heads.
- a gas valve 7 is formed which is flow-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 maximum filling level is selected so that when the melt container 3 is filled with melt 2 up to the maximum filling level 8, a gas-filled space remains in the melt receiving space 4, in which a pressure can be set by means of 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 set in a targeted manner by means of the gas valve 7.
- the melt transport device 1 has a fill level sensor 10 which is used to detect an actual fill quantity 11.
- the actual filling quantity level 11 can thus be continuously recorded and compared with a target filling quantity level 12.
- a load cell 39 can be formed, 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 protrudes 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 in a gas-tight manner with respect to an outer side 16 of the melt container.
- the siphon 13 is formed in the spout 5 such that the reservoir 14 has the overflow level 17, the siphon wall 15 being formed in such a way that it has a lower edge 32 of the siphon wall.
- the siphon wall 15 protrudes into the reservoir 14 in such a way that a siphon wall lower edge 32 is arranged at a lower level than the overflow level 17.
- the melt container 3 is shown partially filled with melt 2.
- the structure described results in a first melt surface 18 which is arranged on the outside 16 of the melt container or is assigned to it.
- 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 actual fill 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. Spilling of the melt 2 can thereby be avoided in the best possible way.
- 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 tilted slightly 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 that the siphon 13 is arranged on the underside of the lance 20.
- the lance 20 is shown excessively large in diameter to improve the 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 in the lance 20 can work according to the same operating principle as described here.
- the siphon 13 can comprise a container 21 which is open at the top and 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 container 21, which is open at the top, is arranged on the spout 5 such that it can be replaced.
- an immersion aid 47 is arranged on the underside of the lance 20a, 20b.
- the immersion aid 47 serves to tear open the oxide skin on the upper surface of the crucible 25 when the lance 20a, 20b is immersed in the crucible 25, so that the lance 20a, 20b can be immersed under the layer of oxide skin to fill the melt container and in As a further consequence, the oxide skin does not get into the melt receiving space 4 as far as possible when the melt container 3 is filled.
- the immersion aid 47 has a pointed shape, so that the tearing open of the oxide skin is facilitated.
- the underside of the lance 20a, 20b or the immersion aid 47 is designed in such a way that it does 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 obliquely pointing downward, so that the oxide skin is rejected when the lance 20a, 20b is pulled out.
- FIGS. 2a to 2c a further and possibly independent embodiment of the melt transport device 1 is shown, the same reference numerals or component designations being used for the same parts as in the previous FIG. In order to avoid unnecessary repetitions, reference is made to the detailed description in the preceding FIG. 1.
- FIGS. 2a to 2c A possible filling process for filling the melt receiving space 4 with melt 2 is shown schematically in FIGS. 2a to 2c.
- 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 at least partially dip into the melt 2 arranged in the crucible 25, so that the pouring opening 6 is immersed below the crucible filling level 27 of the melt 2 in the crucible 25. 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 filling quantity nesting level 11 will adapt to the furnace filling level 27 in the filled state of the melt container 3.
- 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 hold.
- the gas valve 7 can be closed and the melt container 3, as can be seen in Fig. 2c, can be raised again.
- melt container 3 When the melt container 3 is raised, so much melt 2 flows out of the melt receiving space 4 back into the crucible 25 until a pressure that is lower than that of the surroundings is established in the melt receiving space 4, which holds the melt in the melt receiving space 4.
- melt 2 is subsequently 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 level of melt 2 can be selected in this way
- This desired level of melt 2 in the melt receiving space 4 is selected in such a way that a remainder of melt 2 remains in the melt receiving space 4 after the casting of the cast workpiece or workpieces.
- the melt container 3 can be transported to its G fauxposi tion.
- FIGS. 3a to 3c show a further and possibly independent embodiment of the melt transport device 1, the same reference numerals or component names being used for the same parts as in the previous FIGS. 1 and 2. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 and 2.
- FIGS. 3a to 3c A possible filling process for renewed or repeated filling of the melt receiving space 4 with melt 2 is shown schematically in FIGS. 3a to 3c.
- 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.
- melt 2 was not completely poured out.
- several cast work pieces can also have been cast, whereby when the last cast work piece was cast, not all of the melt 2 located in the melt receiving space 4 of the melt container 3 was used.
- FIGS. 4a and 4b show a further and possibly independent embodiment of the melt transport device 1, the same reference numerals or component designations being used for the same parts as in the preceding FIGS. 1 to 2. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 to 2. 4a and 4b, an alternative method for filling the Schmelzagemerau mes 4 with melt 2 is shown.
- melt container 3 only dips so far into the crucible 25 that the pouring opening 6 is below the level 27 of the tie.
- 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 quantity 11 in the melt receiving space 4 at a constant level during the transport of the melt transport device 1.
- FIG. 5 a further and possibly independent embodiment of the melt transport device 1 is shown, with the same reference characters or component names as in the preceding FIGS. 1 to 4 being used for the same parts. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 to 4.
- the melt transport device 1 is filled by means of a low-pressure furnace 33 known to a person skilled in the art.
- a riser pipe 34 which protrudes into the 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 melt 2 in the riser 34 can be pushed upwards through the function of the low pressure furnace 33 until the melt receiving space 4 is filled with melt 2 up to its target level 12.
- FIGS. 6 to 9 a further and possibly independent embodiment of the siphon 13 is shown, again with the same reference numerals or component names as in the preceding FIGS. 1 to 5 being used for the same parts. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 to 5.
- the siphon 13 is tubular.
- various possible embodiments of 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 is also, as in the exemplary embodiment according to FIG. 6, arranged at a right angle to the pipe center axis.
- the tube is designed to be slightly inclined downward in the area of the pouring opening 6 with the lance 20 in a vertical position, with a tube end angle 36 being designed at an angle smaller than 90 °.
- the tube is cut obliquely in the region of the pouring opening 6, so that the pouring opening 6 is oval.
- the pouring opening 6 is designed in the shape of a fan 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 pouring wide cast workpieces.
- FIG. 10 a further and possibly independent embodiment of the casting device 37 is shown, whereby the same reference numerals or component designations as in the preceding FIGS. 1 to 9 are again used for the same parts. Around To avoid unnecessary repetitions, reference is made to the detailed description in the preceding FIGS. 1 to 9.
- Fig. 10 shows a first embodiment of a casting device 37 for casting cast workpieces.
- 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 constructed in the same way as 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 in such a way that both melt containers 3a, 3b can be moved simultaneously and synchronously with one another.
- both melt containers 3a, 3b are moved together by means of common drive devices.
- the structure of the melt transport device 1 can be kept as simple as possible.
- the casting device 37 also comprises a casting mold 29 which has a mold cavity 30.
- a first casting mold 29a is assigned to the first melt container 3a and a second casting mold 29b is assigned to the second melt container 3b.
- two cast workpieces can be cast with only one melt transport device 1. In this case, the structure or the control of the melt transport device 1 can be kept as simple as possible.
- a swivel device 40 is formed which has a swivel bearing 41 by means of which the melt container 3a, 3b can be swiveled 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 be pivoted at the same time.
- a distance adjustment device 44 is formed, by means of which a distance 45 between 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.
- From the standver adjusting device 44 can, as can be seen from Fig. 10, for example in the form of a linear adjusting device.
- the distance 45 is designed, for example, in the form of a fastening arm for receiving the melt container 3a, 3b, whereby a change in the distance 45 can be achieved by pivoting the fastening arm and thus the melting container 3a, 3b about a vertical axis.
- FIG. 11 a further and possibly independent embodiment of the casting device 37 is shown, the same reference numerals or component designations being used again for the same parts as in the preceding FIGS. 1 to 10. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 to 10.
- the casting device 37 shown in FIG. 11 has a similar structure to the casting device 37 shown in FIG. 10.
- both melt containers 3a, 3b are arranged on a common receptacle, the pivot bearing 41 being designed in such a way that both melt containers 3a, 3b simultaneously by means of a pivot drive 43 about the horizontal axis of rotation 42 are pivotable.
- FIG. 12 a further and possibly independent embodiment of the casting device 37 is shown, again with the same reference symbols or Component designations as in the preceding Figures 1 to 11 are used. In order to avoid unnecessary repetitions, reference is made to the detailed description in the preceding FIGS. 1 to 11.
- the lance 20 is coupled to the melt container 3 by means of a quick-release connector 46, in particular by means of a bayonet connector.
- a shaped element is formed in the melt container 3, with a recess corresponding to the shaped element being formed on the lance 20.
- the exemplary embodiments show possible design variants, whereby it should be noted at this point that the invention is not limited to the specifically shown design variants dersel ben, but rather various combinations of the individual design variants with one another are possible and this possible variation is based on the teaching on technical action The present invention is within the ability of a person skilled in the art who is active in this technical field.
- melt transport device 31
- Melt coupling 32
- Siphon wall lower edge Melt container 33
- Low pressure furnace Melt receiving space
- Riser pipe pouring 35
- Drip nose pouring opening 36
- Pipe end angle gas valve 37
- Pouring device Filling level maximum
- Surface of melt receiving pressure recording means space
- Weighing cell siphon storage level 40 Pivoting device, Swiveling device, target level of the siphon wall, 41 Pivoting device, distance 42 Pivoting device, target level Overflow level 46 quick closure first melt surface 47
- immersion aid second melt surface lance container strut pouring channel melting furnace melting crucible filling position crucible filling level vacuum pump casting mold mold cavity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Charging Or Discharging (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA51095/2019A AT523251A1 (de) | 2019-12-13 | 2019-12-13 | Verfahren zum Gießen von Schmelze mittels eines Schmelzebehälters in welchem ein Schmelzeaufnahmeraum ausgebildet ist |
PCT/AT2020/060446 WO2021113892A1 (de) | 2019-12-13 | 2020-12-11 | VERFAHREN ZUM GIEßEN VON SCHMELZE MITTELS EINES SCHMELZEBEHÄLTERS IN WELCHEM EIN SCHMELZEAUFNAHMERAUM AUSGEBILDET IST |
Publications (3)
Publication Number | Publication Date |
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EP4072750A1 true EP4072750A1 (de) | 2022-10-19 |
EP4072750C0 EP4072750C0 (de) | 2023-10-04 |
EP4072750B1 EP4072750B1 (de) | 2023-10-04 |
Family
ID=74141210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20838330.7A Active EP4072750B1 (de) | 2019-12-13 | 2020-12-11 | Verfahren zum giessen von schmelze mittels eines schmelzebehälters in welchem ein schmelzeaufnahmeraum ausgebildet ist |
Country Status (6)
Country | Link |
---|---|
US (1) | US11931796B2 (de) |
EP (1) | EP4072750B1 (de) |
CN (1) | CN115038532B (de) |
AT (1) | AT523251A1 (de) |
MX (1) | MX2022007254A (de) |
WO (1) | WO2021113892A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12083721B2 (en) * | 2020-11-09 | 2024-09-10 | Eae Elektrik Asansor Endustrisi Insaat Sanayi Ve Ticaret Anonim Sirketi | Filling device for the joint in energy distribution lines |
AT526082B1 (de) * | 2022-05-10 | 2023-11-15 | Fill Gmbh | Schmelzetransportvorrichtung |
CN115780814A (zh) * | 2022-11-02 | 2023-03-14 | 杭州夸克新材料技术有限公司 | 一种高精度有色金属粉体成球设备 |
Family Cites Families (20)
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BE593968A (fr) | 1959-08-14 | 1960-12-01 | Heraeus Gmbh W C | Perfectionnements apportés au dégazage par circulation de métaux, en particulier d'acier |
US3514519A (en) | 1968-02-08 | 1970-05-26 | Lectromelt Corp | Heated transfer vessel for molten metal casting apparatus and method |
AT359535B (de) * | 1978-10-24 | 1980-11-10 | Voest Alpine Ag | Einrichtung zum verschliessen des stichloches eines metallurgischen gefaesses |
DE3927852A1 (de) | 1989-08-23 | 1991-02-28 | Alcan Gmbh | Verfahren und vorrichtung zur dosierten entnahme fluessigen metalls aus einem schmelzebehaelter |
JPH09271930A (ja) | 1996-04-03 | 1997-10-21 | Toyota Motor Corp | 給湯方法及び給湯装置 |
JP2997426B2 (ja) | 1996-12-16 | 2000-01-11 | 広島アルミニウム工業株式会社 | 吸引式液体計量装置 |
JPH1133696A (ja) * | 1997-07-11 | 1999-02-09 | Ube Ind Ltd | 給湯装置および給湯方法 |
JP4267093B2 (ja) * | 1998-07-23 | 2009-05-27 | 明智セラミックス株式会社 | 溶融金属汲出し装置 |
WO2001098549A1 (fr) | 2000-06-22 | 2001-12-27 | Hoei Shokai Co., Ltd | Procede de production et de distribution d'un alliage en aluminium et dispositif de production dudit alliage |
FI112448B (fi) * | 2001-05-21 | 2003-12-15 | Jarkko Laine | Valuastia sulan käsittelyyn ja valumenetelmä |
DE10258370A1 (de) | 2002-12-12 | 2004-06-24 | Kahn, Friedhelm, Dr.-Ing. | Verfahren und Vorrichtungen zum automatischen Dosieren, Transportieren und Gießen von Schmelzen und anderen fluiden Stoffen |
AT504079B1 (de) * | 2006-09-13 | 2008-09-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum abgiessen von schmelze aus einem kippbaren metallurgischen gefäss sowie anlage zur durchführung des verfahrens |
DE102007011253B4 (de) | 2007-03-08 | 2019-07-11 | Bayerische Motoren Werke Aktiengesellschaft | Herstellung von Gussteilen durch direkte Formfüllung |
DE102009004613B4 (de) | 2009-01-15 | 2020-01-02 | Bayerische Motoren Werke Aktiengesellschaft | Reservoir für flüssiges Gussmaterial, insbesondere Stopfenpfanne, sowie Verfahren zum Befüllen einer Stopfenpfanne |
EP2407260A1 (de) * | 2010-07-14 | 2012-01-18 | MELTEC Industrieofenbau GmbH | Vorrichtung und Verfahren zur Schmelzezudosierung und Gießmaschine |
DE102011120224B4 (de) | 2011-12-05 | 2020-10-01 | Volkswagen Aktiengesellschaft | Gießverfahren |
DE102014205388A1 (de) | 2014-03-24 | 2015-09-24 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zum Druckgießen eines metallischen Bauteils |
DE102015205401A1 (de) | 2015-03-25 | 2016-09-29 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zum Einfüllen einer Schmelze in eine Gießkammer sowie Verfahren zum Einfüllen von Schmelze in eine Gießkammer |
AT521190B1 (de) | 2018-04-27 | 2021-08-15 | Fill Gmbh | Verfahren zum Gießen einer Schmelze eines metallischen Werkstoffes, sowie zum Durchführen des Verfahrens ausgebildete Gießvorrichtung |
CN109482852B (zh) | 2019-01-09 | 2021-09-07 | 台州市路桥旺润玻璃有限公司 | 一种液态金属输送罐 |
-
2019
- 2019-12-13 AT ATA51095/2019A patent/AT523251A1/de unknown
-
2020
- 2020-12-11 EP EP20838330.7A patent/EP4072750B1/de active Active
- 2020-12-11 CN CN202080095354.2A patent/CN115038532B/zh active Active
- 2020-12-11 MX MX2022007254A patent/MX2022007254A/es unknown
- 2020-12-11 WO PCT/AT2020/060446 patent/WO2021113892A1/de active Search and Examination
- 2020-12-11 US US17/784,337 patent/US11931796B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
MX2022007254A (es) | 2022-09-23 |
US11931796B2 (en) | 2024-03-19 |
CN115038532A (zh) | 2022-09-09 |
EP4072750C0 (de) | 2023-10-04 |
US20230038351A1 (en) | 2023-02-09 |
WO2021113892A1 (de) | 2021-06-17 |
EP4072750B1 (de) | 2023-10-04 |
AT523251A1 (de) | 2021-06-15 |
CN115038532B (zh) | 2024-06-25 |
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