Distributor device for a low-pressure casting process

Abstract

The invention relates to a distributor device (1) for a low-pressure casting process, comprising a distributor structure (2) having a feed opening (3) for feeding a melt (6) into the distributor structure (2), and having a first and at least one further discharge opening (4, 5) for discharging the melt (6) out of the distributor structure (2), the distributor structure (2) having a first connecting channel (7) conducting the melt (6) to a first discharge opening (4), and at least one further connecting channel (8) conducting the melt (6) to the at least one further discharge opening (5).

Description

[0001] 24-2050 PIF

[0002] DISTRIBUTION DEVICE FOR A LOW-PRESSURE CASTING PROCESS

[0003] The invention relates to a distributor device for a low-pressure casting process. Such distributor devices are known in principle from the prior art. It is known, for example, to allow molten metal to rise from a tank, the internal pressure of which is increased during the casting process, via a riser pipe into a distributor device. Previous distributor devices, also called feeder boxes, comprise a central receiving chamber. The central receiving chamber of this distributor device or feeder box is closed by a cover body, also called a sprue box, wherein the cover body has inlet openings for transfer channels, the transfer channels opening into inlet openings of a mold, so that the molten metal, moved by pressure, can be introduced into cavities on the mold side via the inlet openings.After a predefined quantity of molten metal has been introduced into at least one cavity, the molten metal in the cavity solidifies to form the object being molded. The molten metal in the transfer channels, the distributor or feeder box, and the riser pipe is returned to the tank to carry out a new low-pressure casting process cycle.

[0004] The invention is based on the objective of providing a distributor device for a low-pressure casting process which in particular allows shorter cycle speeds, has a higher degree of process reliability and enables a more precise process sequence.

[0005] The problem is solved by a distributor device for a low-pressure casting process according to claim 1. The dependent claims relate to possible embodiments of the distributor device. Furthermore, the problem is solved by a method according to claim 10.

[0006] The invention relates to a distributor device for a low-pressure casting process. The distributor device can also be referred to as a feeder box. The distributor device is located between a melt tank and a 24-2050 PIF.

[0007] A molding tool is an intermediate device that distributes the melt supplied from the tank to feed channels of a feed structure, with each feed channel of the feed structure corresponding to an inlet opening of the molding tool. In other words, the feed channels each form a feed line for the melt to a respective inlet opening of the molding tool, so that the supplied melt can be introduced into at least one cavity of the molding tool via the inlet openings. The cavity forms a hollow space in the molding tool in which the melt is received and at least partially solidifies, thereby producing the object to be cast, in particular a vehicle component. In other words, the wall sections of the molding tool that delineate the cavity or hollow space give shape to the object to be cast.

[0008] Upstream of the feed structure is the distributor device with its distributor structure, wherein the distributor structure has one, in particular a single, feed opening for feeding a melt into the distributor structure and a first and at least one further outlet opening for discharged the melt from the distributor structure into the feed channels of the feed structure. The distributor structure further comprises a first connecting channel leading the melt to a first outlet opening and at least one further connecting channel leading the melt to the at least one further outlet opening. Each connecting channel of the distributor structure is associated with, in particular a single, feed channel of the feed structure. In other words, each connecting channel of the distributor structure transitions into, in particular a single, feed channel of the feed structure.

[0009] The distributor device according to the invention offers the advantage that a minimal amount of melt is required for the low-pressure casting process (recycled material). Furthermore, the melt surface area exposed to oxidation is minimal during the process. Another advantage is that abrupt changes in cross-section during the cavity filling process, particularly in the area of ​​the distributor device, are prevented. Finally, heat losses are low, and the distributor device can be manufactured and assembled at low cost, especially for the ceramic lining. 24-2050 PIF

[0010] At least one connecting channel, and in particular all connecting channels, can have a closed channel cross-section, at least partially, preferably predominantly, and especially preferably completely. Preferably, a distributor structure body forming the distributor structure can be formed in one piece or in multiple pieces. For example, the at least one distributor structure body forming the distributor structure is manufactured at least partially, preferably predominantly, and especially preferably completely, using an additive manufacturing process (also called additive manufacturing or 3D printing) and / or a casting process. For example, the at least one distributor structure body forming the distributor structure is manufactured using a ceramic casting process.

[0011] It is possible that at least one connecting channel is formed, at least partially, from at least two, and in particular exclusively two, composite distributor structure bodies. For example, the longitudinal extent of at least one connecting channel can be formed, at least partially, preferably predominantly, and especially preferably completely, by at least two, and in particular exactly two, distributor structure bodies. For this purpose, the at least two distributor structure bodies can exist as separate bodies and, in a composite state, define or delimit the at least one connecting channel, at least partially.

[0012] In an advantageous embodiment, the at least two composite distributor structure bodies have channel wall sections that form at least one connecting channel and fully enclose or delimit at least partially within its cross-section. In other words, a first distributor structure body has a first channel wall section and a second distributor structure body has a second channel wall section, wherein, in the composite state of the at least two distributor structure bodies, the first and second channel wall sections together form at least one common connecting channel and fully delimit at least partially within its cross-section. For this purpose, the channel wall sections of the at least two distributor structure bodies can form a closed ring, such that the 24-2050 PIF

[0013] Interior of the closed ring, forming the cavity provided for the passage of the molten metal.

[0014] The at least two composite distributor structures can, for example, form or have channel wall sections of a first and at least one second connecting channel, and can fully enclose the at least two connecting channels, at least partially, within their cross-section by the first and the at least one second distributor structure. Thus, a first distributor structure can have a first channel wall section associated with a first connecting channel and a second channel wall section associated with a second connecting channel, and the second distributor structure can have a third channel wall section associated with the first connecting channel and a fourth channel wall section associated with the second connecting channel.This allows, in particular exclusively, the first and second distributor structure bodies to form or delimit at least section by section, preferably predominantly, and especially preferably completely, the first and second connecting channels. In other words, for example, a section of a first and a section of a second connecting channel can be formed or delimited exclusively by two composite distributor structure bodies; that is, at least a section of the first connecting channel and a section of a second connecting channel will each form a completely ring-shaped, closed channel wall by the two channel bodies.Advantageously, centering and / or guiding structures are formed on the first and / or at least one second distributor structure body, so that during the assembly of the at least two distributor structure bodies, a predefined position and / or orientation of the at least two distributor structure bodies is achieved by mutually touching and merging contact of the at least two distributor structure bodies.

[0015] It is possible that the at least one distributor structure body forming the distributor structure has at least one predetermined breaking point, which, in the event of rupture, creates a connection of at least one connecting channel (a) to a cavity arranged between a housing body and the distributor structure and / or (b) to a centrally located 24-2050 PIF and / or to a receiving space located on a side of at least one wall section of at least one distributor structure body facing away from a housing body. The at least one predetermined breaking point can be designed such that, in the event of an overpressure exceeding a predefined pressure limit, material failure or rupture occurs at the predetermined breaking point. Thus, the predetermined breaking point forms a sacrificial point at which, in the event of overpressure in the channels of the distributor structure, a predetermined behavior of the distributor device occurs.

[0016] In a preferred embodiment, the distributor device comprises a housing body that encloses the at least two composite distributor structure bodies. "Enclosing" here means that the housing body surrounds the distributor structure at least partially, preferably predominantly, and particularly preferably completely, from the outside. This enclosure of the distributor structure is achieved by connection points between the housing body and the housing body of components adjacent to the distributor structure (e.g., a cover body). The housing body can, for example, be made of sheet metal or manufactured using an additive manufacturing process. A cavity located between the housing body and the distributor structure body, which forms at least one of the connecting structures, can, for example, be filled at least partially, preferably predominantly, and particularly preferably completely, with a filling material.For example, the filler material used can be a foamed material, such as a ceramic foam. If a foamed material is used as the filler, it can have an open-pored or open-cell structure, at least partially, preferably predominantly, and particularly preferably completely. Alternatively or additionally, the filler material can be in bulk, at least partially, preferably predominantly, and particularly preferably completely.

[0017] It is possible that the filling material and / or the at least one distribution structure body has a foamed and / or an open- or closed-pore structure. For example, the at least one distribution structure body has a separate coating and / or another measure that enables targeted sealing of the pore or cell structure at its boundary surface 24-2050 PIF to the distribution channels. A closed boundary surface of the at least one distribution structure body at at least one channel wall section defining a connecting channel allows unimpeded flow through the distribution channels while simultaneously providing good thermal insulation.

[0018] It is possible that at least one first distribution structure body comprises a first channel wall section assigned to a first connection channel and at least one further channel wall section assigned to at least one further connection channel, and that a second distribution structure body comprises a third channel wall section assigned to the first connection section and a fourth channel wall section assigned to at least one further connection channel. The first distribution structure body can, for example, comprise three or more channel wall sections for three or more connection channels, and the second distribution structure body can comprise three or more channel wall sections that are assigned to the aforementioned three or more connection channels or that at least partially form these connection channels. In other words, the distribution structure body that defines all connection channels can be...The wall structure is formed by sections of the first and at least one second distributor structure body. If at least one of the distributor structure bodies, preferably all distributor structure bodies, are made of an insulating material, e.g., foamed, a conformal and thermally well-insulated distributor device can be achieved.

[0019] In addition to the distributor device for a low-pressure casting process, the invention relates to a method for carrying out a low-pressure casting process, wherein a distributor device described herein is used.

[0020] All advantages, details, designs and / or features of the distributor device according to the invention are transferable or applicable to the method according to the invention and vice versa.

[0021] The invention is explained in more detail with reference to exemplary embodiments in the drawings. Figure 24-2050 PIF shows this.

[0022] Fig. 1 shows a schematic representation of a low-pressure casting process plant according to the state of the art;

[0023] Fig. 2 shows a perspective schematic representation of a distributor device according to an exemplary embodiment;

[0024] Fig. 3 shows a perspective schematic representation of a distributor device according to a further embodiment;

[0025] Fig. 4 shows a schematic representation of a low-pressure casting process plant equipped with a distributor device according to the invention, based on an exemplary embodiment.

[0026] Figure 1 shows a low-pressure casting process plant according to the prior art, wherein molten metal 6 is stored in the interior of a tank 20. The interior of the tank 20 is pressurized, which acts on the surface of the molten metal 6 and moves or pushes the molten metal 6 vertically upwards against gravity via the riser pipe 21. The molten metal flows via the riser pipe 21 into the distributor device 1, which has a central collecting chamber 22. As the molten metal 6 flows into the collecting chamber 22, it is filled to its upper edge 23 and then passes through inlet openings 24, 25 of a lid body 26 into transfer channels 27, 28 on the lid body. The transfer channels 27, 28 open into inlet openings 29, 30 of one or more cavities 31 of a mold 32.After a predefined quantity of melt 6 has been introduced into the at least one cavity 31, the melt 6 in the cavity solidifies to form the object to be shaped. The melt 6 located in the transfer channels 27, 28, in the distributor device 1 or feeder box, and in the riser pipe 21 is returned to the tank 20. The process takes place under low pressure; the melt 6 in the tank 20 can be pressurized to 100 mbar to 200 mbar, preferably 125 mbar to 175 mbar, and particularly preferably 140 mbar to 160 mbar. Alternatively or additionally, the pressure of the melt 6 in the riser pipe can be 150 mbar to 200 mbar, preferably 160 mbar to 190 mbar, and particularly preferably 170 mbar to 180 mbar. In the feeder box or in the distributor device 1, the pressure of the melt 6 can be, for example, 24-2050 PIF between 175 mbar and 285 mbar, preferably 200 mbar to 260 mbar, particularly preferably 220 mbar and 240 mbar.

[0027] A disadvantage of the prior art is that a significant pressure increase occurs during the transfer of the melt 6 from the distributor device 1 to the cover body 26. This is due to a substantial change in the cross-sectional area of ​​the collection chamber 22 compared to the cross-sectional area of ​​the inlet openings 24, 25 of the cover body 26 and the cross-sectional area of ​​the transfer channels 27, 28. This can cause the melt 6 to experience a pressure surge, resulting in sloshing and / or oscillation, which can negatively affect the filling process of the cavity 31. In other words, the horizontal surface of the melt experiences a pressure surge during its continuous ascent from the collection chamber 22 through the inlet openings 24, 25 into the transfer channels 27, 28 due to the narrowing of the available passage area.

[0028] The distributor device 1 shown in Figures 2 to 4 for a low-pressure casting process comprises a distributor structure 2 with a feed opening 3 for feeding a melt 6 into the distributor structure 2 and with a first and at least one further outlet opening 4, 5 for discharged the melt 6 from the distributor structure 2. The distributor structure 2 has a first connecting channel 7 leading the melt 6 to a first outlet opening 4 and at least one further connecting channel 8 leading the melt 6 to the at least one further outlet opening 5. This avoids the distributor structure 7 having a larger collection chamber 22, as in the prior art. Instead, in the distributor device 1 according to the invention, a continuous flow and a "gentle" division of the melt 6 into partial flows are achieved.Finally, the working volume of the distributor 1 is also significantly smaller than that of the prior art having a single collection chamber 22, so that less melt 6 is required for feeding the melt 6 to the cavity 31 and for returning the melt 6 from the feed structure to the tank 20. This results in lower energy consumption, since the melt 6 is heated in the tank 20 and fed to the cavity 31 in its heated state, so that less melt 6 needs to be heated that is not required for filling the cavity 31. 24-2050 PIF.

[0029] Because the distributor structure 2 has at least two connecting channels 7, 8, thus already dividing the melt 6 into at least two partial streams, the melt 6 can be divided into partial streams even before leaving the distributor device 1 or the feeder box, thereby enabling a more continuous transition for the division. The at least one distributor structure body 9, 10 forming the distributor structure 2 can be formed in one piece or in multiple pieces. For example, the at least one distributor structure body 9, 10 is manufactured at least partially, preferably predominantly, and particularly preferably completely, using an additive manufacturing process and / or a casting process. The at least one distributor structure body 9, 10 can have a porous, in particular closed-cell or open-cell, structure.

[0030] The at least one connecting channel 7, 8 can, for example, be formed at least partially from at least two, and in particular exclusively from two, composite distributor structure bodies 9, 10. As can be seen in Figure 3, the connecting channels 7, 8 are formed in their cross-sectional shape or in their circumferential or shell shape partly by a first distributor structure body 9 and partly by a second distributor structure body 10. Preferably, the cross-sectional shape is formed approximately half (between 35% and 65%, more preferably between 45% and 55%) or exactly half by a first and a second distributor structure body 9, 10. The at least two composite distributor structure bodies 9, 10 have channel wall sections 14, 15 for this purpose, which form at least one connecting channel 7, 8 and fully enclose the at least one connecting channel 7, 8 at least partially in its cross-section.In other words, in the embodiment according to Figure 3, the connecting channels 7, 8 are formed by the composite distributor structure bodies 9, 10 and their wall sections 14, 15, 16, 17. Thus, it is possible that the at least two composite distributor structure bodies 9, 10, for example, form wall sections 14, 15, 16, 17 of a first and at least one second connecting channel 7, 8, and that the at least two connecting channels 7, 8 are each fully enclosed, at least partially, in their cross-section by the first and the at least one second distributor structure body 9, 10. 24-2050 PIF.

[0031] Figure 2 shows a first distributor structure body 9, which alone, i.e., without a second distributor structure body 10 to be assembled with the first, can already form a distributor device 1 according to the invention. The distributor structure body 9 has trough-like or channel-like connecting channels 7, 8, which, for example, have a cross-section that is not completely closed by the distributor structure body 9. In other words, open channel wall sections 14, 15 are formed by the, in particular single,

[0032] Distributor structure body 9 is formed. These open connecting channels 7, 8 of the embodiment shown in Figure 2 can, for example, be closed by the cover body 26, whereby this distributor structure body 9 also already has advantages over the prior art due to its channel- or duct-shaped connecting channels 7, 8 or channel wall sections 14, 15. Preferably, the first distributor structure body 9 shown in Figure 2 is used in combination with at least one further, in particular with only one further, distributor structure body 10, so that in the assembled state of the at least two distributor structure bodies 9, 10 a structure according to Figure 3 is achieved.It is possible that the first and / or second distributor structure body 9, 10 has guide and / or centering sections which, during the assembly of the at least two distributor structure bodies 9, 10, lead to a predefined orientation and / or position of the two distributor structure bodies 9, 10. For example, the first distributor structure body 9 can have at least one receiving recess 18 into which an engagement projection (not shown) of the at least one second distributor structure body 10 engages in the assembled state of the distributor structure bodies 9, 10. Preferably, the at least one receiving recess 18 can be set back relative to an adjacent wall section 14 to form a section of a connecting channel 7 through the first distributor structure body 9, cf. Figure 2.

[0033] Preferably, the distributor structure 2, or the at least one distributor structure body 9, 10 forming the connecting channels 7, 8 at least partially, is enclosed by a housing body 11. The housing body 11 can, for example, be a body made of at least one sheet metal part or consist of at least one sheet metal component. It is possible that the housing body 11 has a flange section 19 by means of which the housing body 11 can be directly connected to a housing body that at least partially surrounds the cover body 26, or 24-2050 PIF to the cover body 26. For this purpose, the housing body surrounding the cover body 26 and / or the cover body 26 can have a mating flange section which is associated with the flange section 19 of the housing body 11.For example, the flange section 19 and the counter flange section can be connected to each other by force and / or form and / or material connection, preferably by means of at least one screw means (e.g. a screw).

[0034] A cavity 12 located between the housing body 11 and a distributor structure body 9, 10 forming the distributor structure 2 can, for example, be filled at least partially, preferably predominantly, and particularly preferably completely, with a filling material 13. Thus, the cavity 12, which exists between the housing body 11 on the one hand and the distributor structure bodies 9, 10 on the other, can serve as a receiving space for the filling material 13. Preferably, the cavity 12 extends over the entire surface of the distributor structure 2 facing the housing body 11, particularly with the exception of the area of ​​the feed opening 3 and / or the area of ​​the at least two outlet openings 4, 5 of the distributor structure 2.

[0035] A further advantage can be achieved by using the cavity 12 as a sacrificial receiving space, so that in the event of a leak in the distributor structure bodies 9, 10, e.g., due to aging, the escape of the melt 6 through the housing body 11 is prevented, or the cavity 12 is filled first. In an advantageous embodiment, at least one distributor structure body 9, 10 has at least one predetermined breaking point 34, 35, which is selected such that it creates a connection of at least one connecting channel 7, 8 into the cavity 12 and / or into a centrally located receiving space 33 and / or into a receiving space 33 located on a side facing away from the housing body 11 of at least one wall section 14, 15 of at least one distributor structure body 9, 10. Thus, in the event of an aging-related and / or pressure-related rupture of a connecting channel 7, 8, the melt 6 resulting from the predetermined breaking point 34, 35 or 35 can be contained.The molten metal 6 escaping from the point of rupture is directed into the cavity 12 (via the predetermined breaking point 34 of the first distributor structure body 9) and / or into the receiving chamber 33 (via the predetermined breaking point 35 of the further distributor structure body 10) and is collected there. The receiving chamber 33 can, for example, be formed exclusively by a single distributor structure body 9, 10, for example, exclusively by the second distributor structure body 10, wherein a closed receiving chamber 33 is formed by the, in particular single, distributor structure body 9, 10 and the cover body 26. The at least one predetermined breaking point 34, 35 can be achieved, for example, by a geometric measure (e.g., area-dependent reduction of the wall thickness) and / or by a material property measure (e.g., area-dependent change in strength).

[0036] For example, a foamed material, preferably a ceramic foam, can be used as the filling material 13. The filling material 13 can, for example, be open-pored or open-cell, or closed-pored or closed-cell.

[0037] It is possible that the filling material 13 and / or at least one distributor structure body 9, 10, preferably all distributor structure bodies 9, 10, are formed from a foamed material and / or a porous structure, in particular an open-pored or open-cell structure, or a closed-pored or closed-cell structure. If an open-pored or open-cell structure, in particular a foam structure, is present, a closed surface can be present at the boundary to an adjacent component, in particular at a channel wall section 14, 15, 16, 17 that defines at least one connecting channel 7, 8. The closed surface can be achieved, for example, by a coating and / or by selectively closing the open-pored cells in at least one area forming the channel wall section 14, 15, 16, 17.

[0038] In a preferred embodiment, as shown by way of example in Figure 3, at least one first distributor structure body 9 can comprise a first wall section 14 associated with a first connecting channel 7 and at least one second channel wall section 15 associated with at least one further connecting channel 8, and a second distributor structure body 10 can comprise a third channel wall section 16 associated with the first connecting channel 7 and a fourth channel wall section 17 associated with at least one further connecting channel 8. The first distributor structure body 9, 10 can, for example, comprise three or more channel wall sections 11, 12 for three or more connecting channels 7, 8 (24-2050 PIF), and the second distributor structure body can comprise three or more channel wall sections 11, 12 which are associated with the aforementioned three or more connecting channels 7, 8 or which at least partially form these connecting channels 7, 8.

[0039] Preferably, the distributor device 1 described herein can be used in a method for carrying out a low-pressure casting process.

[0040] 24-2050 PIF

[0041] Reference symbol list

[0042] 1 distributor head

[0043] 2 Distribution structure

[0044] 3 Feed opening

[0045] 4 first exit opening

[0046] 5 additional outlet openings

[0047] 6 Melt

[0048] 7 first connection channel

[0049] 8 additional connection channels

[0050] 9 first distributor structure body

[0051] 10 additional distributor structure bodies

[0052] 11 Housing body

[0053] 12 Cavity

[0054] 13 Filling material

[0055] 14 first canal wall section of 9

[0056] 15 second canal wall section of 9

[0057] 16 third canal wall section of 10

[0058] 17 fourth canal wall section of 10

[0059] 18 Exclusion

[0060] 19 Flange section of 11

[0061] 20 Tank

[0062] 21 Riser pipe

[0063] 22 Collection room of 1

[0064] 23 Top edge

[0065] 24 first entry opening of 26

[0066] 25 more entries open out of 26

[0067] 26 lid bodies

[0068] 27 first crossing channel of 26

[0069] 28 second crossing channel of 26

[0070] 29 first entry opening of 31

[0071] 30 second entry opening 31

[0072] 31 Cavity

[0073] 32 Forming tool

[0074] 33 Recording space of 9, 10 -2050 PIF first predetermined breaking point of 9 further predetermined breaking point of 10

Claims

24-2050 PIF REQUIREMENTS 1. Distributor device (1) for a low-pressure casting process, comprising a distributor structure (2) with a feed opening (3) for feeding a melt (6) into the distributor structure (2) and with a first and at least one further discharge opening (4, 5) for discharge of the melt (6) from the distributor structure (2), characterized in that the distributor structure (2) has a first connecting channel (7) leading the melt (6) to a first discharge opening (4) and at least one further connecting channel (8) leading the melt (6) to the at least one further discharge opening (5).

2. Distributor device (1) according to claim 1 , characterized in that at least one connecting channel (7, 8) is formed at least sectionally from at least two, in particular from exclusively two, composite distributor structure bodies (9, 10).

3. Distributor device (1) according to claim 2, characterized in that the at least two composite distributor structure bodies (9, 10) have channel wall sections (14, 15, 16, 17) which form at least one connecting channel (7, 8) and fully enclose the at least one connecting channel (7, 8) at least partially in its cross-section.

4. Distributor device (1) according to claim 2 or 3, characterized in that the at least two composite distributor structure bodies (9, 10) form wall sections (11, 12) of a first and at least one second connecting channel (7, 8) and the at least two connecting channels (7, 8) are each connected by the first and the at least one 24-2050 PIF second distributor structure body (9, 10) are fully enclosed at least sectionally in their cross-section.

5. Distributor device (1) according to one of the preceding claims, characterized by a housing body (11) which encloses at least two composite distributor structure bodies (9, 10) which form the connecting channels (7, 8) at least partially.

6. Distributor device (1) according to claim 5, characterized in that a cavity (12) located between the housing body (11) and a distributor structure body (9, 10) forming the distributor structure (2) is filled at least partially, preferably predominantly, particularly preferably completely, with a filling material (13).

7. Distributor device (1) according to claim 6, characterized in that the filling material (13) is a foamed material, preferably the filling material (13) is a ceramic foam.

8. Distributor device (1) according to one of the preceding claims, characterized in that at least a first distributor structure body (9) comprises a first channel wall section (14) associated with a first connecting channel (7) and at least a second channel wall section (15) associated with at least a further connecting channel (8), and a second distributor structure body (10) comprises a third channel wall section (16) associated with the first connecting channel (7) and a fourth channel wall section (17) associated with at least one further connecting channel (8).

9. Distributor device (1) according to one of the preceding claims, characterized in that at least one forming the distributor structure (2) 18 24-2050 PIF Distributor structure body (9, 10) has at least one predetermined breaking point (34, 35) which is designed so that in the event of a break, it creates a connection to at least one connecting channel (7, 8) - in a cavity (12) arranged between a housing body (11) and the distributor structure (2) and / or - is generated in a centrally located and / or in a receiving space 33 located on a side of at least one wall section (14, 15, 16, 17) of at least one distributor structure body (9, 10) facing away from a housing body (11).

10. Method for carrying out a low-pressure casting process, wherein a distributor device (1) according to one of the preceding claims is used.

Images