EP3586999A1 - Metal with solids - Google Patents
Metal with solids Download PDFInfo
- Publication number
- EP3586999A1 EP3586999A1 EP18180430.3A EP18180430A EP3586999A1 EP 3586999 A1 EP3586999 A1 EP 3586999A1 EP 18180430 A EP18180430 A EP 18180430A EP 3586999 A1 EP3586999 A1 EP 3586999A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solids
- casting melt
- casting
- melt
- delivery line
- 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
- 239000007787 solid Substances 0.000 title claims abstract description 68
- 239000002184 metal Substances 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 80
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 18
- 150000002739 metals Chemical class 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 238000004512 die casting Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 229920000914 Metallic fiber Polymers 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 229910001234 light alloy Inorganic materials 0.000 claims 1
- 238000009736 wetting Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/007—Treatment of the fused masses in the supply runners
-
- 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
-
- 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means
-
- 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
- B22D17/007—Semi-solid pressure die casting
-
- 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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
Definitions
- the invention relates to a method and the device for producing metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of castings, preferably die-castings, with the steps: Melting of a metal or a metallic alloy using a melting device, transporting the casting melt by means of the delivery line to the casting molds to be filled, supplying solids to the casting melt during the transport of the casting melt in the delivery line.
- the US 7 509 993 B1 discloses a process in which the particles are added while the casting melt is still in the liquid state in the melting furnace.
- this has the disadvantage that there is no continuous process until the mold is filled, but rather only one batch of furnace can be cast, which then also has a different ratio (ratio) of fibers to melt per batch.
- ratio ratio
- this object is achieved in that the casting melt is mixed with the supplied solids during transport in a mixing zone, preferably by means of energy input, and the mixer is arranged on the delivery line.
- the method according to the invention relates to a manufacturing method of metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of castings, preferably diecastings.
- the metal or metal alloy is melted until the metal or metal alloy changes to the liquid state and is present as a casting melt.
- the casting melt is transported by means of a delivery line to the casting molds to be filled, which can preferably be done via a gradient of the delivery line and / or by means of a pump.
- An electromagnetic pump is particularly preferred for conveying the casting melt.
- the solids are introduced into the casting melt via a dosing system during the conveying in the delivery line.
- the casting melt is mixed with the solids during transport or conveying in the delivery line in a mixing zone, preferably by means of energy input, the mixing zone also being introduced directly into the metering system when the solids are introduced can be arranged.
- a preferred embodiment consists in that the energy input for thorough mixing takes place in at least one mixing zone by means of an ultrasonic sonotrode.
- This improves the binding of the solids to the casting melt by separating the agglomerations of the solids formed by the ultrasound by means of the energy and the impulses supplied, thereby allowing the individual solids to bind better to the casting melt and reducing the wetting angle between the solid and the casting melt, and this in turn contributes to a better connection.
- the energy input preferably by means of ultrasound, the oxide layer, which is located on the casting melt and prevents the penetration of the solids due to the surface tension, is separated, as a result of which the solids can penetrate the casting melt better.
- the solids are preferably designed as fibers and / or particles, fibers having an elongated shape and particles being more spherical or flake-shaped.
- the fibers or particles come from the group of carbon fibers, aluminum oxides, basalt, silicon carbide, aramid, metallic fibers, coated fibers and / or their derivatives. Tests have shown that these fibers and flakes or particles have good temperature resistance and do not burn up in the high-temperature casting melt.
- a preferred embodiment is that the delivery line is tempered. Due to the possibility of different temperature control via the delivery line, the conditions of the pouring melt can be influenced. That means, for example, the delivery line can be cooled, whereby the casting melt is actively cooled and the condition of the casting melt becomes semi-solid or lies in the semi-solid area of a metal or a metal alloy. Of course, there is also the possibility of heating the delivery line in order to bring the casting melt into the liquid state or to keep it there.
- the casting melt is cooled in the delivery line during transport until the casting melt has a semi-solid state.
- the semi-solid state enables the solids to be kneaded, which in turn improves the connection between the solids and the alloy.
- the temperature is kept at a certain temperature level in order to have the same state of the casting melt over a certain range so that the solids can be introduced accordingly or the connection between solids and metal or metallic alloy is improved, for example by kneading or sonicate with ultrasound.
- the invention is characterized by a further embodiment in which the solids in the casting melt are kneaded in the semi-solid state in a mixing zone. Kneading is preferably implemented in a further mixing zone which is preferably also arranged on the delivery line.
- the device according to the invention for the production of metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of cast parts, preferably die-cast parts, includes a melter in which the metal or the metallic alloys are melted, preferably an oven is used for this purpose.
- the device contains a delivery line for conveying or transporting the casting melt.
- the metering system of the device according to the invention serves to feed the solids into the casting melt, the metering system being connected to the delivery line.
- the device according to the invention contains at least one mixer for homogeneous mixing of the casting melt, the mixer being arranged on the conveying line and the mixing of the casting melt taking place during transport or conveying.
- the mixer is designed as an ultrasound sonotrode.
- a pump for conveying the casting melt is arranged on the delivery line, preferably an electromagnetic one Pump. This ensures a continuous and controllable transport or conveyance of the casting melt.
- the delivery line has a bypass line
- the bypass line allowing multiple runs of the casting melt through the introduction and mixing zone. This enables a high degree of flexibility in the amount of solids supplied or to be supplied, as well as the mixing.
- the bypass line can preferably also be tempered.
- the metering system preferably has an injector for introducing the solids into the casting melt. This ensures a continuous introduction of solids into the casting melt.
- the delivery line has a pipe constriction in the area of the metering system. This enables a lower pressure in the narrower area, whereby the solids that are present in the dosing system are drawn in by suction.
- the metal or the metallic alloy according to the invention is preferably used for the production of cast parts, in particular die cast parts, the cast parts preferably being used as vehicle parts.
- the composition of the corresponding metal or a metallic alloy is to be matched to the application and the requirements and to be provided with the appropriate solids.
- Fig. 1 a device according to the invention for the production of metals or metallic alloy mixed with solids.
- the drawing shown shows a device 1 according to the invention for producing metals or metallic alloys mixed with solids.
- the device 1 has a melting device 2, preferably a furnace for melting metals and metallic alloys.
- the casting melt thus obtained is transported by means of the conveying line 3 to the casting molds 9 to be filled.
- a pump 11 is preferably used to convey the pouring melt in the delivery line 3, which ensures that a constant and preferably continuous flow of the pouring melt flows through the delivery line 3.
- a metering system 4 Arranged on the delivery line 3 or connected to it is a metering system 4 which introduces the solids, preferably particles or fibers, into the casting melt.
- At least one mixer 5 is arranged on the delivery line 3, it also being possible for a plurality of mixers 5 to be arranged at different points in the delivery line 3.
- a mixer 5 is preferably already located in the area of the metering system 4 and is preferably designed as an ultrasound sonotrode and ensures that the solid is mixed in the preferably still liquid casting melt.
- a further mixing zone 6 with a corresponding mixer 5 can also be arranged on the delivery line 3, which in turn mixes the pouring melt, preferably when the pouring melt is in a semi-solid state and is kneaded by means of mixer 5, which ensures good binding of the solids the casting melt granted.
- the conveying line 3 can be appropriately temperature-controlled, whether by heating or by cooling, this can be used individually accordingly.
- a bypass line 8 is arranged on the conveying line 3, which enables the pouring melt to pass through the introducing and mixing zone 7 several times on the conveying line 3 and so the pouring melt is appropriately provided with solids until the pouring melt has the desired composition and is sufficiently mixed and then filled into the molds 9.
Abstract
Verfahren und Vorrichtung zur Herstellung von mit Feststoffen versetzten Metallen oder metallischen Legierungen, vorzugsweise Leichtmetallen oder Leichtmetalllegierungen für das Vergiessen von Gussteilen vorzugsweise Druckgussteilen mit den Schritten:• Aufschmelzen eines Metalls oder einer metallischen Legierung mittels eines Schmelzgerätes (2),• Transportieren der Giessschmelze mittels Förderleitung (3) zu den zu füllenden Giessformen (9),• Zuführen von Feststoffen zur Giessschmelze während des Transports der Giessschmelze in der Förderleitung (3),wobei die Giessschmelze mit den zugeführten Feststoffen während des Transports in der Förderleitung (3) in mindestens einer Mischzone (6) vorzugsweise mittels Energieeintrag durchmischt wird.Method and device for the production of metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of castings, preferably die-castings, with the following steps: • melting a metal or a metallic alloy by means of a melting device (2), • transporting the casting melt by means of a delivery line (3) to the casting molds to be filled (9), • supplying solids to the casting melt during the transport of the casting melt in the delivery line (3), the casting melt with the supplied solids during transport in the delivery line (3) in at least one mixing zone (6) is preferably mixed by means of energy input.
Description
Die Erfindung betrifft ein Verfahren sowie die Vorrichtung zur Herstellung von mit Feststoffen versetzten Metallen oder metallischen Legierungen, vorzugsweise Leichtmetallen oder Leichtmetalllegierungen für das Vergiessen von Gussteilen vorzugsweise Druckgussteilen mit den Schritten:
Aufschmelzen eines Metalls oder einer metallischen Legierung mittels eines Schmelzgerätes, transportieren der Giessschmelze mittels Förderleitung zu den zu füllenden Giessformen, zuführen von Feststoffen der Giessschmelze während des Transports der Giessschmelze in der Förderleitung.The invention relates to a method and the device for producing metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of castings, preferably die-castings, with the steps:
Melting of a metal or a metallic alloy using a melting device, transporting the casting melt by means of the delivery line to the casting molds to be filled, supplying solids to the casting melt during the transport of the casting melt in the delivery line.
Aus dem Stand der Technik sind Verfahren zur Herstellung von Verbundwerkstoffen durch Zugabe von Partikeln zur Verbesserung von physikalischen Eigenschaften wie mechanischer Festigkeit oder auch der Verbesserung der Dauerfestigkeit bekannt. Bekannt ist auch die Herausforderung beim Einbringen der Feststoffe durch den hohen Benetzungswinkel im speziellen bei der Leichtmetallschmelze.Methods for the production of composite materials by adding particles to improve physical properties such as mechanical strength or also to improve the fatigue strength are known from the prior art. The challenge of introducing the solids due to the high wetting angle, in particular in the case of the light metal melt, is also known.
Das schlechte Benetzungsverhalten von Feststoffen aufgrund der hohen Benetzungswinkel, im speziellen bei nicht-metallischen Feststoffen, in der Schmelze, ist gleichbedeutend mit einer schlechten Matrixanbindung was ein Einbinden von Feststoffen in ein Metall oder eine metallische Legierung erschwert. Zudem ist ein solcher Prozess sehr aufwendig.The poor wetting behavior of solids due to the high wetting angle, especially in the case of non-metallic solids, in the melt, is synonymous with a poor matrix connection, which makes it difficult to incorporate solids into a metal or a metallic alloy. Such a process is also very complex.
Die
Es ist Aufgabe der Erfindung ein Verfahren und eine damit verbundene Vorrichtung vorzuschlagen, die es ermöglicht Feststoffe in ein Metall oder eine metallische Legierung einzubinden mit der Erreichung einer guten Benetzung der Feststoffe sowie einer homogenen Durchmischung ohne Clusterbildung sowie die Sicherstellung eines kontinuierlichen Herstellprozesses.It is an object of the invention to propose a method and an associated device which enables solids in a metal or a metallic Integrate alloy with the achievement of a good wetting of the solids as well as a homogeneous mixing without cluster formation as well as the assurance of a continuous manufacturing process.
Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Giessschmelze mit den zugeführten Feststoffen während des Transports in einer Mischzone vorzugsweise mittels Energieeintrag durchmischt wird und der Mischer an der Förderleitung angeordnet ist.According to the invention, this object is achieved in that the casting melt is mixed with the supplied solids during transport in a mixing zone, preferably by means of energy input, and the mixer is arranged on the delivery line.
Das erfindungsgemässe Verfahren bezieht sich auf ein Herstellverfahren von mit Feststoffen versetzten Metallen oder metallischen Legierungen, vorzugsweise Leichtmetallen oder Leichtmetalllegierungen für das Vergiessen von Gussteilen vorzugsweise Druckgussteilen.
Zuerst wird das Metall bzw. die Metalllegierung aufgeschmolzen bis das Metall bzw. die Metalllegierung in den flüssigen Zustand übergeht und als Giessschmelze vorliegt.
Die Giessschmelze wird mittels einer Förderleitung zu den zu füllenden Giessformen transportiert, wobei dies vorzugsweise über ein Gefälle der Förderleitung und/oder mittels einer Pumpe erfolgen kann. Speziell bevorzugt zur Förderung der Giessschmelze ist eine elektromagnetische Pumpe.
Zur Zuführung von Feststoffen in die Giessschmelze werden während der Förderung in der Förderleitung über eine Dosieranlage die Feststoffe in die Giessschmelze eingebracht. Um eine homogene Durchmischung sowie eine optimale Benetzung der Feststoffe sicherzustellen, wird die Giessschmelze mit den Feststoffen während des Transports bzw. der Förderung in der Förderleitung in einer Mischzone durchmischt, vorzugsweise mittels Energieeintrags, wobei die Mischzone auch direkt beim Einbringen der Feststoffe im Bereich der Dosieranlage angeordnet sein kann.The method according to the invention relates to a manufacturing method of metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of castings, preferably diecastings.
First, the metal or metal alloy is melted until the metal or metal alloy changes to the liquid state and is present as a casting melt.
The casting melt is transported by means of a delivery line to the casting molds to be filled, which can preferably be done via a gradient of the delivery line and / or by means of a pump. An electromagnetic pump is particularly preferred for conveying the casting melt.
To feed solids into the casting melt, the solids are introduced into the casting melt via a dosing system during the conveying in the delivery line. In order to ensure homogeneous mixing and optimum wetting of the solids, the casting melt is mixed with the solids during transport or conveying in the delivery line in a mixing zone, preferably by means of energy input, the mixing zone also being introduced directly into the metering system when the solids are introduced can be arranged.
Es ist vorteilhaft wenn die Durchmischung während und/oder nach dem Zuführen der Feststoffe erfolgt. Durch eine optimale Durchmischung wird die Clusterbildung der Feststoffe unterbunden sowie die Anbindung und die Benetzungsverhalten der Feststoffe an die Giessschmelze verbessert.It is advantageous if the mixing takes place during and / or after the solids have been supplied. Optimal mixing prevents the formation of clusters of solids and improves the connection and wetting behavior of the solids to the casting melt.
Eine bevorzugte Ausführungsform besteht darin, dass der Energieeintrag zur Durchmischung in mindestens einer Mischzone mittels Ultraschall-Sonotrode erfolgt. Dies verbessert das Anbinden der Feststoffe an die Giessschmelze indem gebildete Agglomerationen der Feststoffe durch den Ultraschall mittels der zugeführten Energie und den Impulsen aufgetrennt werden und sich dadurch die einzelnen Feststoffe an die Giessschmelze besser anbinden können sowie der Benetzungswinkel zwischen Feststoff und Giessschmelze reduziert wird und dies wiederum zur besseren Verbindung beiträgt.
Als weiterer Vorteil durch die Energieeintragung, vorzugsweise mittels Ultraschall, wird die Oxydschicht, welche sich auf der Giessschmelze befindet und das Eindringen der Feststoffe aufgrund der Oberflächenspannung verhindert, aufgetrennt, wodurch die Feststoffe besser in die Giessschmelze eindringen können.A preferred embodiment consists in that the energy input for thorough mixing takes place in at least one mixing zone by means of an ultrasonic sonotrode. This improves the binding of the solids to the casting melt by separating the agglomerations of the solids formed by the ultrasound by means of the energy and the impulses supplied, thereby allowing the individual solids to bind better to the casting melt and reducing the wetting angle between the solid and the casting melt, and this in turn contributes to a better connection.
As a further advantage due to the energy input, preferably by means of ultrasound, the oxide layer, which is located on the casting melt and prevents the penetration of the solids due to the surface tension, is separated, as a result of which the solids can penetrate the casting melt better.
Als vorteilhaft hat sich erwiesen, wenn die Zuführung der Giessschmelze in der Förderleitung kontinuierlich erfolgt. Dadurch kann ein kontinuierlicher und fortlaufender Prozess gewährleistet werden sowie eine hohe Effizienz.It has proven to be advantageous if the casting melt is fed continuously into the delivery line. This ensures a continuous and ongoing process and high efficiency.
Vorzugsweise sind die Feststoffe als Fasern und/oder Partikel ausgebildet, wobei Fasern eine längliche Formgestaltung aufweisen und Partikel eher kugel- oder flockenförmig ausgebildet sind.The solids are preferably designed as fibers and / or particles, fibers having an elongated shape and particles being more spherical or flake-shaped.
Vorteilhaft ist es wenn die Fasern oder Partikel aus der Gruppe Kohlefasern, Aluminiomoxide, Basalt, Siliziumkarbid, Aramid, metallische Fasern, beschichtete Fasern und/oder deren Derivate stammen. Aus Versuchen hat sich gezeigt, dass diese Fasern und Flocken bzw. Partikel eine gute Temperaturbeständigkeit aufweisen und nicht in der hochtemperierten Giessschmelze verglühen.It is advantageous if the fibers or particles come from the group of carbon fibers, aluminum oxides, basalt, silicon carbide, aramid, metallic fibers, coated fibers and / or their derivatives. Tests have shown that these fibers and flakes or particles have good temperature resistance and do not burn up in the high-temperature casting melt.
Eine bevorzugte Ausführungsform besteht darin, dass die Förderleitung temperiert wird. Durch die Möglichkeit einer unterschiedlichen Temperierung über die Förderleitung, kann Einfluss auf die Zustände der Giessschmelze genommen werden. Das heisst, beispielsweise kann die Förderleitung gekühlt werden, wodurch die Giessschmelze aktiv abgekühlt wird und der Zustand der Giessschmelze wird semi-solid bzw. liegt im semi-soliden Bereich eines Metalls oder einer Metalllegierung. Selbstverständlich besteht auch die Möglichkeit die Förderleitung zu erwärmen um die Giessschmelze in den flüssigen Zustand zu bringen oder in diesem zu halten.A preferred embodiment is that the delivery line is tempered. Due to the possibility of different temperature control via the delivery line, the conditions of the pouring melt can be influenced. That means, for example, the delivery line can be cooled, whereby the casting melt is actively cooled and the condition of the casting melt becomes semi-solid or lies in the semi-solid area of a metal or a metal alloy. Of course, there is also the possibility of heating the delivery line in order to bring the casting melt into the liquid state or to keep it there.
Vorteilhaft ist es wenn die Giessschmelze während des Transports in der Förderleitung gekühlt wird bis die Giessschmelze einen semi-soliden Zustand aufweist. Durch den semi-soliden Zustand wird ermöglicht, dass die Feststoffe eingeknetet werden können, was wiederum eine Verbesserung der Verbindung zwischen den Feststoffen und der Legierung herstellt. Vorteilhaft ist es, wenn die Temperatur auf einem gewissen Temperaturniveau gehalten wird um über einen bestimmten Bereich denselben Zustand der Giessschmelze zu haben damit entsprechend die Feststoffe eingebracht werden können bzw. die Verbindung zwischen Feststoffen und Metall bzw. metallischer Legierung verbessert wird, bspw. mittels einkneten oder beschallen durch Ultraschall.It is advantageous if the casting melt is cooled in the delivery line during transport until the casting melt has a semi-solid state. The semi-solid state enables the solids to be kneaded, which in turn improves the connection between the solids and the alloy. It is advantageous if the temperature is kept at a certain temperature level in order to have the same state of the casting melt over a certain range so that the solids can be introduced accordingly or the connection between solids and metal or metallic alloy is improved, for example by kneading or sonicate with ultrasound.
Die Erfindung zeichnet sich durch eine weitere Ausgestaltung aus in der die Feststoffe in der Giessschmelze im semi-soliden Zustand in einer Mischzone eingeknetet werden. Ein Einkneten wird vorzugsweise in einer weiteren Mischzone umgesetzt die vorzugsweise ebenfalls an der Förderleitung angeordnet ist.The invention is characterized by a further embodiment in which the solids in the casting melt are kneaded in the semi-solid state in a mixing zone. Kneading is preferably implemented in a further mixing zone which is preferably also arranged on the delivery line.
Die erfindungsgemässe Vorrichtung zur Herstellung von mit Feststoffen versetzten Metallen oder metallischen Legierungen, vorzugsweise Leichtmetallen oder Leichtmetalllegierungen für das Vergiessen von Gussteilen, vorzugsweise Druckgussteilen, beinhaltet ein Schmelzgerät indem das Metall bzw. die metallischen Legierungen aufgeschmolzen werden, vorzugsweise wird dazu ein Ofen eingesetzt. Zur Förderung bzw. zum Transport der Giessschmelze beinhaltet die Vorrichtung eine Förderleitung. Die Dosieranlage der erfindungsgemässen Vorrichtung dient der Zuführung der Feststoffe in die Giessschmelze, wobei die Dosieranlage mit der Förderleitung verbunden ist. Mindestens einen Mischer zur homogenen Durchmischung der Giessschmelze beinhaltet die erfindungsgemässe Vorrichtung, wobei der Mischer an der Förderleitung angeordnet ist und die Durchmischung der Giessschmelze während des Transports bzw. der Förderung erfolgt.The device according to the invention for the production of metals or metallic alloys mixed with solids, preferably light metals or light metal alloys for the casting of cast parts, preferably die-cast parts, includes a melter in which the metal or the metallic alloys are melted, preferably an oven is used for this purpose. The device contains a delivery line for conveying or transporting the casting melt. The metering system of the device according to the invention serves to feed the solids into the casting melt, the metering system being connected to the delivery line. The device according to the invention contains at least one mixer for homogeneous mixing of the casting melt, the mixer being arranged on the conveying line and the mixing of the casting melt taking place during transport or conveying.
Vorteilhaft ist es, wenn der Mischer als Ultraschall-Sonotrode ausgebildet ist. Durch die Durchmischung der Feststoffe in der vorzugsweise flüssigen Giessschmelze mittels Ultraschall wird die Anbindung, wie oben erwähnt aus unterschiedlichen Gründen, zwischen Giessschmelze und Feststoff verbessert.It is advantageous if the mixer is designed as an ultrasound sonotrode. By mixing the solids in the preferably liquid casting melt by means of ultrasound, the connection between the casting melt and the solid is improved, as mentioned above, for various reasons.
Es hat sich als Vorteilhaft erwiesen, wenn an der Förderleitung eine Pumpe zur Förderung der Giessschmelze angeordnet ist, vorzugsweise eine elektromagnetische Pumpe. Dies gewährleistet einen kontinuierlichen und steuerbaren Transport bzw. Förderung der Giessschmelze.It has proven to be advantageous if a pump for conveying the casting melt is arranged on the delivery line, preferably an electromagnetic one Pump. This ensures a continuous and controllable transport or conveyance of the casting melt.
Als bevorzugte Ausführungsform hat sich gezeigt, wenn die Förderleitung eine Bypass-Leitung aufweist, wobei die Bypass-Leitung mehrere Durchläufe der Giessschmelze durch die Einbring- und Mischzone ermöglicht. Dies ermöglicht eine hohe Flexibilität der Menge an zugeführten bzw. zuzuführenden Feststoffen sowie der Durchmischung. Vorzugsweise ist auch die Bypass-Leitung temperierbar.It has been shown as a preferred embodiment if the delivery line has a bypass line, the bypass line allowing multiple runs of the casting melt through the introduction and mixing zone. This enables a high degree of flexibility in the amount of solids supplied or to be supplied, as well as the mixing. The bypass line can preferably also be tempered.
Vorzugsweise weist die Dosieranlage einen Injektor zum Einbringen der Feststoffe in die Giessschmelze auf. Dies gewährleistet eine kontinuierliche Feststoffeinbringung in die Giessschmelze.The metering system preferably has an injector for introducing the solids into the casting melt. This ensures a continuous introduction of solids into the casting melt.
Vorteilhaft ist es, wenn die Förderleitung im Bereich der Dosieranlage eine Rohrverengung aufweist. Dies ermöglicht einen tieferen Druck im engeren Bereich wodurch die Feststoffe, welche in der Dosieranlage vorhanden sind, durch einen Sog mitgezogen werden.It is advantageous if the delivery line has a pipe constriction in the area of the metering system. This enables a lower pressure in the narrower area, whereby the solids that are present in the dosing system are drawn in by suction.
Das erfindungsgemässe Metall oder die metallische Legierung wird vorzugsweise zur Herstellung für Gussteile insbesondere Druckgussteile verwendet, wobei vorzugsweise die Gussteile als Fahrzeugteile eingesetzt werden. Selbstverständlich sind auch andere Anwendungsgebiete denkbar. Die Zusammensetzung des entsprechenden Metalls oder einer metallischen Legierung ist auf die Anwendung und die Anforderungen abzustimmen und entsprechend mit den dazu geeigneten Feststoffen zu versehen.The metal or the metallic alloy according to the invention is preferably used for the production of cast parts, in particular die cast parts, the cast parts preferably being used as vehicle parts. Of course, other areas of application are also conceivable. The composition of the corresponding metal or a metallic alloy is to be matched to the application and the requirements and to be provided with the appropriate solids.
Alle Ausgestaltungmöglichkeiten sind untereinander frei kombinierbar sowie die Merkmale des Verfahrens wie auch der Vorrichtung und der Verwendungsangaben frei untereinander kombinierbar sind.All design options can be freely combined with one another, and the features of the method and also of the device and the indications of use can be freely combined with one another.
Ein Ausführungsbeispiel der Erfindung wird anhand der Figuren beschrieben, wobei sich die Erfindung nicht nur auf das Ausführungsbeispiel beschränkt. Es zeigen:
Die in
Vorzugsweise wird zur Förderung der Giessschmelze in der Förderleitung 3 eine Pumpe 11 eingesetzt, die gewährleistet, dass ein konstanter und vorzugsweise kontinuierlicher Strom der Giessschmelze die Förderleitung 3 durchströmt. An der Förderleitung 3 angeordnet bzw. mit ihr verbunden ist eine Dosieranlage 4, die die Feststoffe, vorzugsweise Partikel oder Fasern in die Giessschmelze einbringt. Zur Durchmischung der Feststoffe mit der Giessschmelze ist mindestens ein Mischer 5 an der Förderleitung 3 angeordnet, wobei auch mehrere Mischer 5 an unterschiedlichen Stellen der Förderleitung 3 angeordnet sein können. Vorzugsweise befindet sich bereits im Bereich der Dosieranlage 4 ein Mischer 5 der vorzugsweise als Ultraschall-Sonotrode ausgebildet ist und die Durchmischung der Feststoff in der vorzugsweise noch flüssigen Giessschmelze gewährleistet. Alternativ kann auch eine weitere Mischzone 6 mit einem entsprechenden Mischer 5 an der Förderleitung 3 angeordnet sein, die die Giessschmelze wiederum durchmischt, vorzugsweise wenn die Giessschmelze in einem semi-soliden Zustand ist und mittels Mischer 5 durchgeknetet wird, was eine gute Anbindung der Feststoffe an die Giessschmelze gewährt. Zur Gewährleistung eines optimalen Zustands der Giessschmelze ist die Förderleitung 3 entsprechend temperierbar, sei es durch Erwärmen oder durch Kühlen, dies ist individuell entsprechend anwendbar. Als mögliche Ausführungsform ist eine Bypass-Leitung 8 an der Förderleitung 3 angeordnet, welche ein mehrfaches Durchlaufen der Giessschmelze durch die Einbring- und Mischzone 7 an der Förderleitung 3 ermöglicht und so die Giessschmelze entsprechend mit Feststoffen versehen wird bis die Giessschmelze die gewünschte Zusammensetzung aufweist und genügend durchmischt ist und anschliessend in die Giessformen 9 gefüllt wird.In the
A
- 11
- Vorrichtungcontraption
- 22
- Schmelzgerätmelter
- 33
- Förderleitungdelivery line
- 44
- Dosieranlagedosing
- 55
- Mischermixer
- 66
- Mischzonemixing zone
- 77
- Einbring- und MischzoneFeeding and mixing zone
- 88th
- Bypass-LeitungBypass line
- 99
- Giessformenmolds
- 1010
- Einbringzoneapplication zone
- 1111
- Pumpepump
Claims (15)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP18180430.3A EP3586999B1 (en) | 2018-06-28 | 2018-06-28 | Metal with solids |
US16/445,248 US20200001355A1 (en) | 2018-06-28 | 2019-06-19 | Metal with solids |
KR1020190074917A KR20200001987A (en) | 2018-06-28 | 2019-06-24 | Metal with solids |
JP2019118179A JP7315382B2 (en) | 2018-06-28 | 2019-06-26 | metal with solids |
CN201910573921.XA CN110653354A (en) | 2018-06-28 | 2019-06-28 | With solid metal |
Applications Claiming Priority (1)
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EP18180430.3A EP3586999B1 (en) | 2018-06-28 | 2018-06-28 | Metal with solids |
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EP3586999B1 EP3586999B1 (en) | 2022-11-02 |
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EP18180430.3A Active EP3586999B1 (en) | 2018-06-28 | 2018-06-28 | Metal with solids |
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US (1) | US20200001355A1 (en) |
EP (1) | EP3586999B1 (en) |
JP (1) | JP7315382B2 (en) |
KR (1) | KR20200001987A (en) |
CN (1) | CN110653354A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102020005392A1 (en) | 2020-09-03 | 2022-03-03 | Daimler Ag | Method for alloying metals in a process chamber and alloying device for carrying out such a method |
DE102021121004B3 (en) | 2021-08-12 | 2022-07-07 | Technische Universität Chemnitz, Körperschaft des öffentlichen Rechts | Casting device and casting method for the production of metal matrix composite materials |
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JP2004136363A (en) | 2002-08-22 | 2004-05-13 | Nissei Plastics Ind Co | Composite forming method for carbon nano material and low melting metallic material, and composite metallic product |
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JP4526550B2 (en) | 2006-05-12 | 2010-08-18 | 学校法人千葉工業大学 | Method for producing composite of carbon nanomaterial and metal material |
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2018
- 2018-06-28 EP EP18180430.3A patent/EP3586999B1/en active Active
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2019
- 2019-06-19 US US16/445,248 patent/US20200001355A1/en not_active Abandoned
- 2019-06-24 KR KR1020190074917A patent/KR20200001987A/en unknown
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JPS63252613A (en) * | 1987-04-08 | 1988-10-19 | Nippon Steel Corp | Manufacture of metal based composite material |
US6253831B1 (en) * | 1997-04-28 | 2001-07-03 | Toyota Jidosha Kabushiki Kaisha | Casting process for producing metal matrix composite |
EP1195448A1 (en) * | 1999-05-14 | 2002-04-10 | Hiroji Oishibashi | Production method for magnesium alloy member |
US20040261970A1 (en) * | 2003-06-27 | 2004-12-30 | Cyco Systems Corporation Pty Ltd. | Method and apparatus for producing components from metal and/or metal matrix composite materials |
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DE102020005392A1 (en) | 2020-09-03 | 2022-03-03 | Daimler Ag | Method for alloying metals in a process chamber and alloying device for carrying out such a method |
DE102021121004B3 (en) | 2021-08-12 | 2022-07-07 | Technische Universität Chemnitz, Körperschaft des öffentlichen Rechts | Casting device and casting method for the production of metal matrix composite materials |
WO2023017358A1 (en) | 2021-08-12 | 2023-02-16 | CMMC GmbH | Casting apparatus and casting method for production of metal matrix composite materials |
Also Published As
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KR20200001987A (en) | 2020-01-07 |
CN110653354A (en) | 2020-01-07 |
JP2020001093A (en) | 2020-01-09 |
US20200001355A1 (en) | 2020-01-02 |
EP3586999B1 (en) | 2022-11-02 |
JP7315382B2 (en) | 2023-07-26 |
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