EP2571644B1 - Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant - Google Patents

Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant Download PDF

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Publication number
EP2571644B1
EP2571644B1 EP11716961.5A EP11716961A EP2571644B1 EP 2571644 B1 EP2571644 B1 EP 2571644B1 EP 11716961 A EP11716961 A EP 11716961A EP 2571644 B1 EP2571644 B1 EP 2571644B1
Authority
EP
European Patent Office
Prior art keywords
component
casting
die
heat exchange
fluid
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.)
Not-in-force
Application number
EP11716961.5A
Other languages
German (de)
English (en)
Other versions
EP2571644A1 (fr
Inventor
Ignaz Huber
Johannes Wunder
Michael Günzel
Sebastien Nisslé
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.)
Georg Fischer Druckguss GmbH and Co KG
Georg Fischer Automotive Suzhou Co Ltd
Georg Fischer GmbH
Original Assignee
FISCHER GEORG & CO KG GmbH
Georg Fischer Druckguss GmbH and Co KG
Georg Fischer Automotive Suzhou Co Ltd
Georg Fischer 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.)
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Publication date
Application filed by FISCHER GEORG & CO KG GmbH, Georg Fischer Druckguss GmbH and Co KG, Georg Fischer Automotive Suzhou Co Ltd, Georg Fischer GmbH filed Critical FISCHER GEORG & CO KG GmbH
Priority to EP11716961.5A priority Critical patent/EP2571644B1/fr
Publication of EP2571644A1 publication Critical patent/EP2571644A1/fr
Application granted granted Critical
Publication of EP2571644B1 publication Critical patent/EP2571644B1/fr
Not-in-force 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
    • 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
    • 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
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies
    • 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
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels
    • 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
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/229—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies with exchangeable die part

Definitions

  • the invention relates to a diecasting mold part of a die casting mold, comprising at least one first component comprising a pressure zone, at least one second component and at least one heat exchange chamber through which a fluid flows for the purpose of tempering the pressure zone, wherein the first component comprises at least one wall of the heat exchange chamber heat transfer surface thermally associated with the print zone and the print zone defines at least a portion of a gate area.
  • the invention further relates to a die casting device.
  • die-casting molds are used for example for Druckguss wornen for die casting.
  • Die casting is preferably used for casting metal, in particular non-ferrous metals or special materials.
  • the molten casting material the melt
  • a casting mold - also referred to as a mold insert In this case, melt flow rates of 20 to 160 m / s and short shot times for introducing 10 to 100 ms are achieved.
  • the casting mold or die casting consists for example of metal, preferably of a hot-work tool steel.
  • the hot chamber method and the cold chamber method can be differentiated. In the former, the die casting device and a melt holding furnace form one unit.
  • the casting unit which supplies the melt to the casting mold is in the melt; With each casting process, a certain volume of the melt is forced into the casting mold.
  • the die-casting device and the holding furnace for the melt are arranged separately. Only the amount required for the particular casting is metered into a casting chamber and introduced from there into the casting mold.
  • the die casting mold consists of at least one die casting molding which has the first and the second component.
  • the first component has a recess, which represents the heat exchange chamber.
  • the recess or the heat exchange chamber is closed by means of the second component, which is plate-shaped, so as to hold a fluid used for cooling the die-cast molding in the heat exchange chamber. Accordingly, the fluid can be introduced into the heat exchange chamber only via an inlet or an inlet valve and out of the heat exchange chamber through an outlet or an outlet valve.
  • the first component has the pressure zone, which is pressurized by the melt during the casting process.
  • the pressure zone is part of a wall of the heat exchange chamber.
  • the same wall belongs to the heat transfer surface, which is associated with the pressure zone thermally. This means that heat between the pressure zone and the heat transfer surface is transferable and consequently the pressure zone is assigned to the heat transfer surface heat transfer.
  • the second component is preferably provided facing away from the printing zone.
  • a similar structure is for example from the DE 35 02 895 A1 known.
  • the described die casting method involves the problem that a reliable and uniform temperature of the pressure zone is not feasible.
  • a cooling of the die casting molding must be dimensioned so that a reliable cooling is given and at the same time the cooling of a diecast component to be produced is not affected by too fast and / or too uneven cooling. From the boundary conditions of sufficient cooling of the die-cast molding and the most uniform cooling of the die-cast component result in comparatively low cycle times in the production of the die-cast component in order to achieve a good durability of the pressure casting in this way.
  • the second component has at least one projecting into the heat exchange chamber Fluidleitvorsprung and / or open to the first component Fluidleitvertiefung, wherein the Fluidleitvertiefung forms at least a portion of the heat exchange chamber and / or the Fluidleitvorsprung and / or Fluidleitverianaung one, in particular form / form adapted to the course of the heat transfer surface flow contour surface of the second component, and wherein the shape of the heat exchange chamber associated with the course of at least one of the gate region Flow channel is adjusted.
  • the second component should have the Fluidleitvorsprung or the Fluidleitvertiefung.
  • Both the Fluidleitvorsprung and the Fluidleitvertiefung point in the direction of the first component. This means that the Fluidleitvorsprung protrudes into the heat exchange chamber and the Fluidleitvertiefung is formed open to the first component. In this case, the Fluidleitvertiefung should form at least a portion of the heat exchange chamber, so that the Fluidleitvertiefung can be flowed through by the fluid, which is used for controlling the temperature of the pressure zone or the heat transfer surface.
  • the temperature of the pressure zone can be set at least approximately controlling and / or regulating.
  • at least one temperature sensor may be provided on or in the die casting molding, with which the temperature of the pressure zone is at least approximately determinable.
  • the temperature and / or the throughput (volume or mass per unit of time) of the fluid can then be selected or set.
  • the fluid flows through the heat exchange chamber and thereby flows over the heat transfer surface. Because this is associated with the thermal or heat transfer the pressure zone, takes place in this way a temperature of the pressure zone.
  • the temperature of the fluid is usually much smaller than the temperature of the pressure zone or of the die-cast molding, so that the die-cast component to be produced cools down as quickly as possible and removed from the diecasting device can.
  • the heat exchange chamber is at least partially formed in the second component, allowing a more reliable loading of the heat transfer surface with the fluid and thus a better cooling characteristics or a faster cooling of the die-cast molding.
  • the Fluidleitvorsprung and / or the Fluidleitverianaung form the flow contour surface.
  • This is provided on the second component.
  • flow contour surface is meant a non-planar surface contour.
  • the flow contour surface should be adapted to the course of the heat transfer surface.
  • the flow contour surface and the heat transfer surface may extend parallel to one another at least in regions. In this way, the fluid is guided such that areas of the heat transfer surface are specifically acted upon by the fluid.
  • the heat transfer surface which correspond to thermally particularly highly stressed areas of the print zone.
  • the heat transfer surface or the heat transfer surface and the second component may have such a contouring.
  • the heat transfer surface and / or the second component are contoured such that a uniform as possible Cooling of the die-cast component to be produced is achieved. In this way, stresses in the material of the die-cast component are avoided, thus achieving high stability.
  • the heat exchange chamber of the die-cast molding should be adapted in shape to the course of at least one flow channel associated with the gate area.
  • the shape is particularly adapted to the peripheral contour of the print zone, in which a particularly good or uniform cooling is to be achieved.
  • the heat exchange chamber may have at least one bulge in the region of the heat transfer surface which is thermally associated with the flow channel or the corresponding region of the pressure zone. This is especially true in plan view, so that from this perspective, for example, a coastal-like course can be present with the at least one bulge or indentation. In this way, an excellent cooling effect or cooling characteristic can also be achieved in the region of the flow channel.
  • die-cast molding can be used both for the hot chamber method and for the cold chamber method and for any material compositions of the melt.
  • a development of the invention provides that the Fluidleitvertiefung at least for the most part, in particular completely, forms the heat exchange chamber. It can therefore be provided that, in addition to the Fluidleitvertiefung another depression is present, for example in the first component, which forms the heat exchange chamber together with the Fluidleitvertiefung. It should however, the volume of the Fluidleitvertiefung be greater than the volume of the further recess. It is particularly advantageous if the heat exchange chamber is formed exclusively by the Fluidleitvertiefung, so no further depression is provided.
  • a preferred embodiment provides that the Fluidleitvertiefung is trough-shaped formed in the second component.
  • the Fluidleitvertiefung is therefore a recess which is so enclosed by the second component, that only one opening is provided so that the Fluidleitvertiefung is open to the first component.
  • the Fluidleitvertiefung should be limited at least laterally from the second component. In such an embodiment, for example, one connected to the second component or connectable - for example by means of a screw - third component forming the bottom of Fluidleitvertiefung.
  • a further embodiment of the invention provides that the first component is designed lid-like or flat. Under cover-like is an embodiment of the first component to understand, in which this - seen in cross-section - in its edge regions of the second component further confronts as in a central region. This can be realized for example by a curvature of the first component or by providing an edge web. Alternatively, however, the first component may also be formed flat, wherein it has a planar course seen in cross-section, so that a distance to the second component is substantially constant.
  • a recess of the first component forms the heat exchange chamber at least partially with.
  • the heat exchange chamber can be complete be formed by the recess of the first component, in which case the Fluidleitvorsprung of the second component protrudes into the recess.
  • both the recess of the first component and the Fluidleitvertiefung of the second component may be provided and form the heat exchange chamber together.
  • the volume of the Fluidleitvertiefung is greater than that of the recess.
  • the heat exchange chamber is fluid-connected to at least one, in particular designed as a fluid line fluid connection.
  • the fluid connection is provided, with which the heat exchange chamber is fluid-connected.
  • the heat exchange chamber associated with two fluid ports, wherein the fluid of the heat exchange chamber can be supplied through one of the fluid ports and discharged through the other from the heat exchange chamber.
  • the fluid connections can be formed at least in regions as - for example, pipe-like design - fluid line.
  • the fluid line is provided at least partially in the first component and / or the second component.
  • the fluid line therefore runs partially through the first and / or second component.
  • the fluid line is provided as a bore and thus forms a FluidzuSciencebohrung or a Fluidab USAbohrung.
  • a plurality of fluid connections or fluid lines are in the heat exchange chamber, they are preferably arranged clearly spaced from one another, in particular when the heat exchange chamber Fluid is supplied by means of the one fluid connection and fluid is removed by means of the other fluid connection.
  • an arrangement of the orifices of the fluid connections or fluid lines of the heat exchange chamber is preferred on opposite sides of the same in the direction of flow.
  • a further embodiment of the invention provides that the first component or the second component has a receptacle, in which the second component or the first component at least partially, in particular completely, can be used.
  • this is preferably encompassed by the respective other component, that it is fixed at least in the lateral direction, so no slippage of one component relative to the other component in this direction is possible.
  • a support surface in the region of the receptacle may be provided on the other component, a support surface in the region of the receptacle.
  • This support surface is preferably formed as a support web, which extends in an outer region of the receptacle to further areas of the exception around. The bearing surface can cooperate to achieve a sealing effect between the one and the other component with a mating surface of a component.
  • a preferred embodiment provides that a pressure range of the second component mitbe regarding the sprue area.
  • the pressure area of the second component is provided adjacent to the sprue area, so that the pressure zone and the pressure area at least partially define this together. It can therefore be provided that both the first component and the second component are subjected to the melt during the casting process. In addition, it may also be provided that the pressure region of the second component delimits the casting mold or the casting mold.
  • the first component is releasably connected to the second component, in particular by means of a screw connection. It is provided that the first component is formed separately from the second component. Subsequently, the at least two components are assembled to the die-cast molding and thereby releasably connected to each other, wherein the heat exchange chamber is formed.
  • the detachable connection can in principle be made arbitrarily. However, a screw connection with at least one screw or a threaded bolt is preferred.
  • the first and / or the second component may have at least one sensor receptacle for a temperature sensor.
  • the temperature sensor serves to at least approximately determine the temperature of the first or of the second component.
  • a temperature control of the fluid or an adjustment of a fluid flow rate can be controlled and / or regulated.
  • the sensor receptacle is arranged such that the temperature sensor can at least approximately detect the temperature of the pressure zone or of the pressure region of the first or of the second component.
  • a seal sealing the heat exchange chamber is provided between the first and the second component.
  • the seal can be designed for example as an O-ring and embrace the heat exchange chamber in the circumferential direction substantially.
  • An exchange of the fluid located in the heat exchange chamber is of course also possible by means of the fluid connection or the fluid line.
  • the invention further relates to a die casting device, comprising at least one die casting molding, in particular according to the preceding embodiments, wherein the die casting molding is part of a die and at least one first component, at least one second component and at least one of the components formed by a fluid flow-through heat exchange chamber for controlling the temperature of the pressure zone, wherein the first component comprises at least one wall of the heat exchange chamber belonging, the pressure zone thermally associated heat transfer surface and the pressure zone delimits at least a portion of a gate region.
  • the second component has at least one projecting into the heat exchange chamber Fluidleitvorsprung and / or open to the first component Fluidleitvertiefung, wherein the Fluidleitvertiefung forms at least a portion of the heat exchange chamber and / or the Fluidleitvorsprung and / or Fluidleitverianaung one, in particular form / form adapted to the course of the heat transfer surface flow contour surface of the second component, and wherein the shape of the heat exchange chamber is adapted to the course of at least one of the gate region associated flow channel.
  • the die-casting device is, for example, a die-casting machine and is accordingly designed for the production of die-cast components. It has, among other things, well-known elements on at least one die-cast molding, which is ausbziehungmud further developed in accordance with the foregoing.
  • An advantageous embodiment of the invention provides that in each case at least one die casting mold form a casting mold unit, a runner unit and / or a casting inlet unit of the diecasting device, the casting mold unit having a casting mold, the runner unit having the casting area and the casting inlet unit having a casting inlet.
  • the casting mold, the sprue area and the pouring inlet are respectively delimited, at least in regions, by the pressure zones of the first components of the die cast molding of the die casting mold.
  • the casting mold is provided, into which the melt is introduced and from which subsequently the die cast component can be removed. The feeding of the melt takes place via the gate unit and / or the pouring inlet unit.
  • the mold unit and the Angussaku consist of at least two die-cast moldings, while the G maneinlassech only has at least one die-cast molding.
  • a development of the invention provides that the casting mold, the sprue area and / or pouring inlet are fluidly connected to each other for flowing through with a casting material.
  • the liquid or molten casting material is also referred to as a melt.
  • the supply of the casting material to the casting mold takes place via the sprue area or the casting inlet. Accordingly, the fluid connection between the mold, the gate area and the pouring inlet must be provided.
  • the casting mold, the sprue area and the pouring inlet thus represent casting areas, which can be flowed through by the melt or the casting material.
  • the heat exchange chambers of the casting mold unit, the runner unit and / or the pouring inlet unit are fluidly connected to each other for flowing through with the fluid.
  • Both the mold unit, the Angussaku, and the G cordeinlassech can each consist of a die-casting mold, which in turn has at least two die-cast moldings.
  • the mold unit, the gate unit and the pouring inlet unit each have a heat exchange chamber. These heat exchange chambers should be connected to each other in such a way that they can be flowed through jointly by the fluid.
  • the heat exchange chamber of the mold unit have a fluid supply port for supplying the fluid and the pouring inlet unit have a fluid outlet port for removing the fluid from the die casting device. Accordingly, the fluid supplied through the fluid supply port first flows through the casting mold unit, then the gate unit and subsequently the pouring inlet unit, and then exits the die casting device through the fluid outlet port.
  • the heat exchange chambers of the mold unit, the Angussaku and / or the G maneinlasshow each have separate fluid connections.
  • the heat exchange chambers of the mold unit, the Angussaku and / or the G maneinlassech are connected to at least one common fluid connection. In this way, it is possible, as already stated above, to simultaneously supply the fluid to both the mold unit, the gate unit and the pouring inlet unit, without having to provide separate fluid connections. In this way, the design effort for the die-cast device or the respective die-cast molding can be reduced.
  • the FIG. 1 shows a die casting device 1, for example, a die casting machine or a part of such.
  • the die casting device 1 is used to produce one or more die-cast components (not shown). It has a casting mold unit 2, a runner unit 3 and a pouring inlet unit 4.
  • the casting mold unit 2 consists of a first die casting mold 5, the runner unit 3 of a second die casting mold 6 and the casting inlet unit 4 of a third die casting mold 7.
  • the first die casting mold 5 settles two die-cast mold parts 8 and 9 and the second die-casting mold of die-cast moldings 10 and 11 together.
  • the third die casting mold 7 consists of a die-cast molding 12.
  • the die-casting molding 8 has a first component 13 and a second component 14.
  • the die casting mold parts 9 to 12 first components 15, 17, 19 and 21 and second components 16, 18, 20 and 22 are assigned.
  • the casting mold unit 2 has a casting mold 23 which is present at least in regions between pressure zones 24 and 25 of the first components 13 and 15.
  • the casting mold 23 essentially has a shape which represents a negative of a die-cast component to be produced.
  • casting material or melt is thus introduced into the casting mold 23 between the pressure zones 24 and 25 and after a cooling and solidification of the melt, the die-cast component removed from the mold 23.
  • the die-cast moldings 8 and 9 have a similar structure, so that at first only the diecasting mold part 8 is described and only the differences from the die cast mold part 9 are pointed out.
  • the second component 14 of the die-cast molding 8 has a Fluidleitvertiefung 26, which forms a heat exchange chamber 27 of the die-cast molding 8 completely.
  • the first component 13 is flat or plate-shaped and is arranged on the second component 14 such that it closes the heat exchange chamber 27 or the fluid-conducting recess 26.
  • the Fluidleitvertiefung 26 is formed like a trough in the second component 14. This means that the second component 14 closes the fluid-conducting recess 26 with the exception of the opening 28 facing the first component 13.
  • the second component 14 For receiving the first component 13, the second component 14 has a receptacle 29, which is designed such that the second component 14 can completely accommodate the first component 13.
  • the pressure zone 24 of the first component 13 is substantially on a plane with sealing surfaces 30, which cooperate with corresponding sealing surfaces (not shown here) of the die-cast molding 9 to seal the mold 23 during the casting against an environment of the die-casting device 1.
  • a support surface 31 is provided, which is designed as a circumferential support web and a support of the first component 13 in the receptacle 29 is used.
  • the fluid can be supplied through the fluid inlet ports 32 of the heat exchange chamber 27 and discharged through the Fluidauslassan whatever 33.
  • the assignment shown here is to be understood as purely exemplary.
  • the fluid inlet ports 32 and the fluid outlet ports 33 can each be interchanged, so that the heat exchange chamber 27 can be traversed in different directions by the fluid.
  • a heat transfer surface 34 is arranged, which is overflowed with the present in the heat exchange chamber 27 fluid.
  • the heat transfer surface 34 in this case belongs to a wall of the heat exchange chamber 27, preferably the same wall as the pressure zone 24.
  • the die casting mold part 8 arranged directly opposite the die casting molding 8 essentially differs from the former in that the first component 15 here has a depression 35 which at least partially forms a heat exchange chamber 36 of the die casting molding 9. Furthermore, the second component 16 of the die-cast molding 9 has only one fluid inlet port 37.
  • the die-cast moldings 10 and 11 are part the Angusstician 3, in which a sprue area 38 is present or is limited by the first components 17 and 19.
  • the sprue area 38 is present in flow channels 39 incorporated in the first components 17 and 19 (here indicated only for the first component 17). In the flow channels 39 is also a pressure zone 40 of the Angussaku 3 ago.
  • a heat transfer surface 41 is provided on the first component 17. If the first component 17 is arranged in a receptacle 42 provided for this purpose of the second component 18, the heat transfer surface 41 together with the second component 18 defines a heat exchange chamber 43 of the die-cast molding 10.
  • a support surface 44 is provided, which is designed as a circumferential support web , The receptacle 42 is designed such that the second component 18 can completely accommodate the first component 17, so that sealing surfaces 45 of the first component 17 are aligned with sealing surfaces 46 of the second component 18 and with sealing surfaces of the first component 19 and the second component, not shown here 20 cooperate for sealing the sprue area 38 with respect to an environment of the die casting device 1.
  • At least one fluid inlet connection 47 and one fluid outlet connection 48 are provided, which open into the heat exchange chamber 43.
  • the heat exchange chamber 43 is also formed here as a Fluidleitvertiefung 49.
  • die-cast molding 11 The directly opposite the die casting molding 10 provided die-cast molding 11 is constructed analogously to this. In this respect, statements made for the diecast part 10 are readily transferable to the diecast part 11 and vice versa.
  • FIG. 1 shows that the first component 19 of the die-cast molding 11 has a recess 50. If the first component 19 is arranged in the second component 20, then this recess 50 serves to form a heat exchange chamber 51.
  • the second component 20 has, analogously to the second component 18 of the die-cast molding 10, in each case a fluid inlet port 52 and a fluid outlet port 53.
  • the casting inlet unit 4 is associated with a cooling ring 54, which has a heat exchange chamber 55 which is closable with a closure plate 56.
  • the cooling ring 54 in this case has a central opening 57, in which a G tellmaterialleitfortsatz 58 of the first component 21 of the die-cast molding 12 engages.
  • a flow channel is formed as a pouring inlet 59, which also extends over other areas of the first member 21 up to the Angussappel 3.
  • molten casting material (melt) can flow to pass through the gate unit 3 into the mold unit 2.
  • a pressure zone 60 In the flow channel 59 is so far also a pressure zone 60 before. This is relative to a wall of the first component 21, a heat transfer surface 61 (not visible here) opposite.
  • This heat transfer surface 61 is present in a heat exchange chamber 62, which is formed by a recess 63 of the first component 21.
  • the heat exchange chamber 62 is opened in the direction of the second component 22.
  • the second component 22 serves to close the heat exchange chamber 62 or the recess 63.
  • the second component 22 has a Fluidleitvorsprung 64, which in the heat exchange chamber 62 protrudes.
  • the fluid guide projection 64 forms a flow contour surface 65 of the second component 22.
  • the flow contour surface 65 is a non-planar surface contour and has a concave region 66.
  • the concave portion 66 is formed by the Fluidleitvorsprung 64 with.
  • the in the FIG. 1 illustrated die casting device 1 is used to produce die-cast components of casting material, which is in the form of the melt.
  • the die-cast parts 8 and 10 and the die-cast parts 9 and 11 are moved towards one another so that the casting mold 23 or the sprue area 38 is sealed.
  • the pressurized melt is fed, which runs along the pouring inlet 59 in the direction of the gating unit 3 and flows into its sprue area 38 or the flow channels 39.
  • the flow channels 39 provide for a fanning out of the stream of melt, so that the casting mold 23 can be fed to the melt in different positions as seen in the lateral direction.
  • the casting inlet unit 4 is supplied with melt until the casting mold 23 is filled.
  • the melt is cooled, for which purpose fluid is introduced into the heat exchange chambers 27, 36, 43, 51, 55 and 62.
  • the temperature of the fluid or its mass flow is selected such that the best possible cooling characteristic of the die-cast component is present. In particular, it is necessary to Cool this as evenly as possible to ensure a sufficiently high stability of the die-cast component.
  • the die-cast mold parts 8 and 9 and the die-cast moldings 10 and 11 are displaced away from each other, so that the casting mold 23 and the sprue area 38 are released.
  • the cooling ring 24 is removed from the casting inlet unit 4.
  • the produced die cast component together with the sprue remaining in the sprue area 38 and the casting material of the die casting device 1 remaining in the area of the casting inlet unit 4 can be removed.
  • As part of a post-processing of the sprue is removed from the die-cast component and preferably remelted.
  • the FIG. 2 shows a sectional view of the die-cast device 1, wherein an arrangement of the die-cast moldings 8 to 12 is shown, which is present during the casting process.
  • the die-cast moldings 8 and 9 and the die-cast moldings 10 and 11 are therefore in each case in a sealing manner against one another.
  • the casting mold 23 is not limited only by the pressure zone 24 of the die casting 8 and an unspecified pressure zone of the die casting 9, but that the second components 14 and 16 each have a pressure range 69 and 70, which define the casting mold 23 , In this case, the pressure region 69 terminates substantially flush with the pressure zone 24 and the pressure region 70 with the pressure zone 25 of the first component 15 of the die-cast molding 9.
  • the first components 13 and 15 are each completely accommodated in the second components 14 and 16 are, for which purpose in the case of the die-cast molding 8, the receptacle 29 is provided.
  • each screw 71 has at least one screw 72.
  • a sensor receptacle 73 is provided in the second components 14 and 16, in which a temperature sensor, not shown here, can be arranged. By means of this temperature sensor, the temperature of the second components 14 and 16 or at least approximately the temperature of the pressure zones 24 and 25 can be determined. On the basis of this specific temperature, the temperature of the fluid or its mass flow is then adjusted in a controlling and / or regulating manner. In this way, the present in the die casting device 1 melt can be cooled quickly and selectively to a certain temperature.
  • a respective seal 74 is provided, which encloses the entire, respectively associated heat exchange chamber 27, 36, 43, 51 or 62.
  • the heat exchange chambers 27, 36, 43, 51 and 62 each have a high fluid pressure can be applied without the fluid can escape from them unintentionally.
  • FIG. 2 makes it clear again that the heat exchange chamber 27 of the die-cast molding 8 can be formed only by the Fluidleitvertiefung 26 of the second component 14.
  • the heat exchange chambers 36, 43, 51 respectively through the recesses 35 and 50 of the first components 15 and 19 and a recess 75 of the first Component 17 with trained.
  • the die-cast parts 8, 9, 10 and 11 are basically of similar construction, while the die-cast part 12 has a structurally different construction.
  • the Fluidleitvorsprung 64 projects into the heat exchange chamber 62, which is formed by the recess 63 in the first component 21.
  • the contour of the heat transfer surface 61 is adapted to the contour of the print zone 60 at least partially. In part, the flow contour surface extends in such a way to the heat transfer surface 61, that at least zonal an approximately constant large flow cross section for the fluid is formed.
  • FIG. 3 shows a sectional view of the die-cast molding 10, with its first component 17 and the second component 18.
  • the die-cast molding 10 is formed in the known manner. In this respect, reference is made to the above statements.
  • FIG. 4 shows the first component 17 of the die-cast molding 10 in a view from below. It therefore becomes clear that the first component 17 has the recess 75.
  • this recess 75 tongues 80 which extend substantially below the flow channels 39 in order to sufficiently cool the pressure zone 40 located in these, by the heat transfer surface 41 is also present in this area and can be overflowed by fluid.
  • Each of the tongues 80 accordingly corresponds to one of the flow channels 39.
  • FIG. 5 shows the second component 18 of the die-cast molding 10.
  • the first component 17 described above is formed as an insert member for the receptacle 42. It becomes clear that that second component 18 in the case of the die-cast molding 10 of the Angussaku 3 has a portion of the flow channels 39, so this forms together with the first component 17.
  • the embodiment shown here corresponds to the already known, so again reference is made to the above statements.
  • FIG. 6 shows a sectional view of the second component 18.
  • the fluid inlet port 47 and the fluid outlet port 48 are each formed as a fluid inlet pipe or fluid outlet. Again, reference should be made to the above statements.
  • the fluid used for cooling may be either gaseous or liquid.
  • the fluid used for cooling may be either gaseous or liquid.
  • the effectiveness of the temperature control or cooling can be increased.
  • Fluidleitvorsprünge provided in the sense of the die-cast molding 12, which protrude into the respective heat exchange chamber 27, 36, 43, 51 or 55.
  • Such Fluidleitvorsprünge serve insofar as turbulators, for example, to generate turbulence and thus to increase the heat transfer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (11)

  1. Pièce (10, 11) de moule de coulée par injection pour la zone (38) d'amenée de matière fondue d'un moule (5, 6, 7) de coulée par injection, présentant
    au moins un premier composant (17, 19) doté d'une zone (40) sous pression sollicitée par la matière fondue lors de l'exécution de l'opération de coulée,
    au moins un deuxième composant (18, 20) et au moins une chambre (43, 51) d'échange de chaleur apte à être traversée par un fluide et formée par les composants (17, 18, 19, 20) pour maintenir la température de la zone sous pression (40),
    le premier composant (17, 19) présentant une surface (41) de transfert de chaleur associée thermiquement à la zone sous pression (40) et faisant partie d'une paroi de la chambre (43, 51) d'échange de chaleur,
    caractérisée en ce que
    la zone sous pression (40) délimite au moins une partie d'une zone (38) d'amenée de matière fondue,
    en ce qu'un creux (49) de guidage de fluide, en forme de cuvette, ouvert en direction du premier composant (17, 19), est formé dans le deuxième composant (18, 20) et forme une partie de la chambre (43, 51) d'échange de chaleur,
    en ce qu'un creux (50, 75) du premier composant (17, 19) forme la chambre (43, 51) d'échange de chaleur avec le creux (49) de guidage de fluide,
    en ce que la forme de la chambre (43, 51) d'échange de chaleur est adaptée au parcours d'au moins un canal d'écoulement (39) associé à la zone (38) d'amenée de matière fondue et
    en ce que le deuxième composant (18, 20) présente un logement (42) dans lequel le premier composant (17, 19) est entièrement inséré.
  2. Pièce de moule de coulée par injection selon la revendication 1, caractérisée en ce que le creux (49) de guidage de fluide forme la chambre (43, 51) d'échange de chaleur.
  3. Pièce de moule de coulée par injection selon la revendication 2, caractérisée en ce que le premier composant (17, 19) est configuré en couvercle ou est plan.
  4. Pièce de moule de coulée par injection selon l'une des revendications précédentes, caractérisée en ce que la chambre (43, 51) d'échange de chaleur est reliée à écoulement à au moins un raccordement de fluide (47, 48, 52, 53) formé sur le conduit de fluide.
  5. Pièce de moule de coulée par injection selon l'une des revendications précédentes, caractérisée en ce qu'au moins certaines parties du conduit de fluide sont prévues dans le premier composant (17, 19) et/ou dans le deuxième composant (18, 20).
  6. Pièce de moule de coulée par injection selon l'une des revendications précédentes, caractérisée en ce qu'une partie (69, 70) sous pression du deuxième composant (18, 20) participe à la délimitation de la zone (38) d'amenée de matière fondue.
  7. Dispositif (1) de moulage par injection présentant au moins une partie (10, 11) de moule de coulée par injection selon l'une ou plusieurs des revendications précédentes.
  8. Dispositif (1) de moulage par injection selon la revendication 7, caractérisé en ce qu'au moins un moule (8, 9, 10, 11, 12) de moulage par injection forme une unité (2) de moule de coulée, une unité (3) d'amenée de matière fondue et/ou une unité (4) d'introduction de matière fondue du dispositif (1) de moulage sous pression, l'unité (2) de moule de coulée présentant un moule de coulée (23), l'unité (3) d'amenée de matière fondue présentant la zone (38) d'amenée de matière fondue et l'unité (4) d'introduction de matière fondue présentant une admission (59) de matière fondue.
  9. Dispositif (1) de coulée par injection selon les revendications 7 ou 8, caractérisé en ce que le moule de coulée (23), la zone (38) d'amenée de matière fondue et/ou l'admission (59) de matière fondue sont raccordées à écoulement les unes aux autres pour permettre le passage d'un matériau de coulée.
  10. Dispositif (1) de coulée par injection selon l'une des revendications 7 à 9 qui précèdent, caractérisé en ce que les chambres (27, 36, 43, 51, 55, 62) d'échange de chaleur de l'unité (2) de moulage de coulée, l'unité (3) de coulée et/ou l'unité (4) d'admission de matière fondue sont reliées à écoulement les unes aux autres par au moins un passage ou au moins un conduit qui permet l'écoulement d'un fluide.
  11. Dispositif (1) de coulée par injection selon l'une des revendications 7 à 10 qui précèdent, caractérisé en ce que les chambres (27, 36, 43, 51, 55, 62) d'échange de chaleur de l'unité (2) de moulage de coulée, de l'unité de coulée (3) et/ou de l'unité (4) d'admission de matière fondue sont reliées à au moins un raccordement commun de fluide.
EP11716961.5A 2010-05-18 2011-05-04 Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant Not-in-force EP2571644B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11716961.5A EP2571644B1 (fr) 2010-05-18 2011-05-04 Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10163117A EP2388087A1 (fr) 2010-05-18 2010-05-18 Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant
PCT/EP2011/057122 WO2011144447A1 (fr) 2010-05-18 2011-05-04 Pièce moulée sous pression obtenue dans un moule prévu à cet effet et dispositif de moulage sous pression correspondant
EP11716961.5A EP2571644B1 (fr) 2010-05-18 2011-05-04 Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant

Publications (2)

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EP2571644A1 EP2571644A1 (fr) 2013-03-27
EP2571644B1 true EP2571644B1 (fr) 2016-08-17

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EP10163117A Withdrawn EP2388087A1 (fr) 2010-05-18 2010-05-18 Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant
EP11716961.5A Not-in-force EP2571644B1 (fr) 2010-05-18 2011-05-04 Pièce d'un moule de coulée sous pression et dispositif de coulée sous pression correspondant

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US (1) US9370821B2 (fr)
EP (2) EP2388087A1 (fr)
CN (1) CN103209786B (fr)
ES (1) ES2603609T3 (fr)
WO (1) WO2011144447A1 (fr)

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JP6135572B2 (ja) * 2014-03-25 2017-05-31 マツダ株式会社 金型段替え用クランパ及びそれを用いた金型段替え方法
DE102016010907A1 (de) 2016-09-08 2018-03-08 Audi Ag Formteil für ein Werkzeug

Citations (1)

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Publication number Priority date Publication date Assignee Title
US20050274483A1 (en) * 2004-06-10 2005-12-15 Dubay Richard L Runner cooling block for die casting systems

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CA1220608A (fr) 1984-02-02 1987-04-21 Guido Perrella Moule de coulee en coquille
US4886107A (en) * 1986-02-28 1989-12-12 Zecman Kenneth P Piston for cold chamber
US5711363A (en) * 1996-02-16 1998-01-27 Amorphous Technologies International Die casting of bulk-solidifying amorphous alloys
US6913063B2 (en) * 2003-04-02 2005-07-05 Toyota Motor Manufacturing North America, Inc. Apparatus and method for inserting parts into a mold
ITRE20040127A1 (it) * 2004-10-12 2005-01-12 Sacmi Metodo e gruppo per la formatura a compressione di preforme per contenitori in materiale polimerico
JP2007061867A (ja) * 2005-08-31 2007-03-15 Asahi:Kk ダイカスト金型及びダイカスト金型の製造方法
DE102006008359B4 (de) * 2006-02-21 2008-06-05 Direkt Form Gmbh Temperierbares Werkzeug aus einem gegossenen metallischen Werkstoff zur Formgebung von Werkstücken
DE102007054723B4 (de) * 2007-11-14 2015-05-28 Cl Schutzrechtsverwaltungs Gmbh Formteil
CN201264064Y (zh) * 2008-08-29 2009-07-01 中山市三丰金属锻造有限公司 一种制备共晶铝硅合金锻坯的装置

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US20050274483A1 (en) * 2004-06-10 2005-12-15 Dubay Richard L Runner cooling block for die casting systems

Also Published As

Publication number Publication date
US20130248135A1 (en) 2013-09-26
EP2388087A1 (fr) 2011-11-23
CN103209786A (zh) 2013-07-17
EP2571644A1 (fr) 2013-03-27
US9370821B2 (en) 2016-06-21
CN103209786B (zh) 2016-03-30
WO2011144447A1 (fr) 2011-11-24
ES2603609T3 (es) 2017-02-28

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