EP1308227A1 - Process for insert moulding a metallic insert - Google Patents

Process for insert moulding a metallic insert Download PDF

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Publication number
EP1308227A1
EP1308227A1 EP02022836A EP02022836A EP1308227A1 EP 1308227 A1 EP1308227 A1 EP 1308227A1 EP 02022836 A EP02022836 A EP 02022836A EP 02022836 A EP02022836 A EP 02022836A EP 1308227 A1 EP1308227 A1 EP 1308227A1
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EP
European Patent Office
Prior art keywords
insert
semifinished product
roughened
nozzle
casting
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Application number
EP02022836A
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German (de)
French (fr)
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EP1308227B1 (en
Inventor
Franz Dr. Rückert
Helmut Schäfer
Dezsoe Schilling
Peter Stocker
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Mercedes Benz Group AG
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DaimlerChrysler AG
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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
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
    • 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

Definitions

  • the invention relates to a method for pouring a metallic Semifinished product in a cast component according to the generic term of claim 1.
  • the object of the invention is to the adhesion of inserts over the prior art to improve and cost-effectively.
  • the method according to the invention according to claim 1 consists in that an insert before insertion into a casting tool roughened by high pressure water jets. By the high pressure water jetting the surface will be cleaned and it will be advantageous undercuts on the surface of the insert which leads to a good clamping of the cast metal lead after its solidification.
  • the insert is preferably a metallic insert. Under certain conditions and surface properties can also use intermetallic components; Carbide, metal-ceramic composites, Metal matrix composites (MMC), intermetallic ceramic composites, Ceramics or inorganic Natural materials are used as inserts
  • the roughening of the surface according to the invention is preferably carried out by one or more flat jet nozzles that are elliptical Opening has.
  • Such nozzles deliver in contrast to full jet nozzles with a circular opening to one expanded surface beam and a groove-free Surface.
  • the application of several nozzles reduced at the same time the processing time.
  • an exit angle of the high pressure water jet between 20 and 34 °.
  • a particularly convenient way the surface economically and quickly roughen is the application of a field of jets, which are preferably arranged perpendicular to the surface.
  • Methods are hypereutectic aluminum-silicon alloys.
  • Semi-finished products made of such materials have hard silicon rich phases and relative to the surface soft aluminum rich phases.
  • the hard, silicon-rich Phases are torn out by water jetting and leave the desired undercuts on the Surface.
  • the distance 9 between the nozzle opening and the cylinder liner 5 is 12 mm.
  • the rotational speed of the cylinder liner 5 is 600 revolutions per minute.
  • the nozzle field 1 describes a longitudinal movement along the longitudinal axis of the cylinder liner at a speed of 10 mm / s.
  • the blasting medium water contains a neutral cleaner with a concentration of approx. 1.5%.
  • the jet medium emerges from the nozzle 3 in the form of a water jet 7 and describes an opening angle ⁇ of 30 °.
  • the water jet 7 has at the outlet from the nozzle opening to a pressure of 1900 bar.
  • a surface 11 is generated, as shown in Fig. 2 .
  • the surface 11 has undercuts 13, which results from the breaking out of silicon-rich phases, not shown here.
  • the average roughness Ra of the surface thus produced is 8.4 ⁇ m, the average roughness Rz is 55.3 ⁇ m.
  • the pretreated cylinder liner is in a die casting tool positioned on quills, the tool is closed and a resulting mold cavity, which is a cylinder crankcase depicts is pressurized (about 800 bar) filled with a liquid aluminum alloy (AlSi9Cu3).
  • AlSi9Cu3 a liquid aluminum alloy
  • the aluminum flows around the cylinder liner and penetrates into the areas of the undercuts 13 on.
  • After solidification of the aluminum creates a solid Clamping between the solidified aluminum and the surface the cylinder liner (interface).
  • the adhesive strength this interface is twice as high as one Interface with sandblasted surface of the insert.
  • the method according to the invention can be applied to all common casting methods, where inserts are pourable applied become. These include, in particular, conventional die-casting, squeeze casting, thixocasting, thixomolding, chill casting, Sand casting, precision casting and, if appropriate, temperature-resistant Inlay all types of iron casting.
  • the parameters mentioned in the previous example are on optimized for a specific application. Depending on the application the parameters may vary as follows.
  • the distance between the nozzle opening and the surface of the insert can be between 10 mm and 30 mm.
  • the pressure of Water jet is between 1500 bar and 2000 bar, the exit angle between 25 ° and 34 °.
  • the rotation speed of the insert is between 100 and 1000 / min, where the feed rate of the nozzle or the nozzle field varies between 2 mm / s and 50 mm / s.
  • the last two parameters are especially important for the nature of the surface, namely the shape and Frequency of undercuts, the microscopic surface roughness and the macroscopic flatness (avoidance of groove formation).
  • the shape and Frequency of undercuts namely the shape and Frequency of undercuts, the microscopic surface roughness and the macroscopic flatness (avoidance of groove formation).
  • the microscopic surface roughness namely the shape and Frequency of undercuts, the microscopic surface roughness and the macroscopic flatness (avoidance of groove formation).
  • For non-rotationally symmetrical inserts is due to a rotation of the insert during the Water jet dispensed.
  • the nozzle array or single nozzle is conventional Systems for high-pressure water jetting with thick and difficult to move Supply lines connected.
  • the free movement the nozzles is therefore limited.
  • the insert part to be irradiated relative to the nozzle field or to move to the nozzle. In a simple case occurs this, as described in the example, by rotation. In in other cases, the relative movement is carried out by a suitable Facial expressions or by robots.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The surface of a semi-finished product (5) including a hyper eutectic aluminum alloy, is roughened by a high-pressure water blasting. The roughened product is positioned in a mold and is surrounded with a casting metal. A firm bond is formed between the product (5) and the solidified casting metal.

Description

Die Erfindung betrifft ein Verfahren zum Eingießen eines metallischen Halbzeugs in ein Gussbauteil nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for pouring a metallic Semifinished product in a cast component according to the generic term of claim 1.

Gussbauteile, insbesondere Leichtmetallgussbauteile werden häufig durch Einlegeteile, die durch Eingießen in das Bauteil integriert werden, verstärkt. Diese Einlegeteile stellen lokale Werkstoffverbesserungen dar wie z. B. bessere Verschleißbeständigkeit, höhere mechanische Festigkeit oder thermische Beständigkeit.Cast components, in particular Leichtmetallgussbauteile be often by inserting, by pouring into the component integrated, reinforced. These inserts make local Material improvements such. B. better wear resistance, higher mechanical strength or thermal resistance.

Die technische Schwierigkeit beim Eingießen derartiger Einlegeteile besteht oftmals in der unbefriedigenden Haftung zwischen der relativ glatten Oberfläche des Einlegeteils und dem erstarrten Gießmetall. Die kurze Berührungszeit zwischen der metallischen Schmelze und dem Einlegeteil sowie geringe Benetzung, wie sie in verschieden Materialpaarungen besteht, verhindert in den meisten Fällen eine chemische Verbindung bzw. ein Legieren des Gießmetalls und des Einlegeteils an deren Grenzflächen. Ein Spalt an der Grenzfläche kann den Wärmeübergang beeinträchtigen oder eine mechanische Schwachstelle darstellen.The technical difficulty in pouring such inserts Often there is the unsatisfactory adhesion between the relatively smooth surface of the insert and the solidified cast metal. The short contact time between the metallic melt and the insert and low wetting, as it exists in different material pairings, prevents in most cases a chemical compound or alloying the cast metal and the insert at their Interfaces. A gap at the interface can heat transfer impair or a mechanical vulnerability represent.

Diesem Problem wird derzeit durch ein Aufrauen der Oberfläche des Einlegeteils begegnet. Das Aufrauen erfolgt zuweilen durch Sandstrahlen oder wie in der DE 197 50 687 A1 am Beispiel einer Zylinderläufbuchse beschrieben wird, durch spanabhebendes Bearbeiten der Oberfläche und anschließenden Sandstrahlen. Hierdurch werden an der Oberfläche des Halbzeuges mikroskopische Hinterschnitte erzeugt, die eine Verklammerung zwischen dem Gießmetall und dem Einlegeteil bewirken. This problem is currently due to a roughening of the surface the insert encountered. Roughening happens sometimes by sandblasting or as in DE 197 50 687 A1 the example a cylindrical sleeve is described by machining Working the surface and then sandblasting. This will be on the surface of the semifinished product microscopic undercuts generated, which is a stapling effect between the casting metal and the insert.

Reines Sandstrahlen führt jedoch nicht zu gewünschten Hinterschnitten, sondern im Wesentlichen zu Vertiefungen an der Oberfläche. Das Verfahren nach der DE 197 50 687 A1 erzeugt die gewünschten Hinterschnitte ist jedoch in seiner Gesamtheit sehr teuer.However, pure sandblasting does not lead to desired undercuts, but essentially to depressions on the Surface. The method according to DE 197 50 687 A1 produced the desired undercuts, however, is in its entirety very expensive.

Hiervon ausgehend besteht die Aufgabe der Erfindung darin, die Haftung von Einlegeteilen gegenüber dem Stand der Technik zu verbessern und kostengünstiger zu gestalten.On this basis, the object of the invention is to the adhesion of inserts over the prior art to improve and cost-effectively.

Die Lösung der Aufgabe besteht in einem Verfahren nach den Merkmalen des Anspruchs 1.The solution of the problem consists in a method according to Features of claim 1.

Das erfindungsgemäße Verfahren nach Anspruch 1 besteht darin, dass ein Einlegeteil vor dem Einlegen in ein Gießwerkzeug durch Hochdruckwasserstrahlen aufgeraut wird. Durch das Hochdruckwasserstrahlen wird die Oberfläche gereinigt und es werden vorteilhafte Hinterschnitte auf der Oberfläche des Einlegeteils erzeugt, die zu einer guten Verklammerung des Gießmetalls nach dessen Erstarrung führen.The method according to the invention according to claim 1 consists in that an insert before insertion into a casting tool roughened by high pressure water jets. By the high pressure water jetting the surface will be cleaned and it will be advantageous undercuts on the surface of the insert which leads to a good clamping of the cast metal lead after its solidification.

Das Einlegeteil ist bevorzugt ein metallisches Einlegeteil. Unter bestimmten Vorraussetzungen und Oberflächeneigenschaften können auch intermetallische Bauteile; Hartmetall, Metall-Keramik-Composites, Metall-Matrix-Composites (MMC), Intermetallik-Keramik-Composites, Keramiken oder anorganische Naturmaterialien als Einlegeteile eingesetzt werdenThe insert is preferably a metallic insert. Under certain conditions and surface properties can also use intermetallic components; Carbide, metal-ceramic composites, Metal matrix composites (MMC), intermetallic ceramic composites, Ceramics or inorganic Natural materials are used as inserts

Es hat sich herausgestellt, dass der optimale Druckbereich eines Wasserstrahls zwischen 1500 bar und 2000 bar liegt. Über 2000 bar wird die Oberfläche zu sehr beschädigt, unter 1500 bar ist die Ausbildung von Hinterschnitten zu gering. Zudem ist es möglich für diese relativ geringen Drücke Pumpen bestehender Druckanlagen wie zum Beispiel für das Bauteilentgraten zu nutzen, wodurch die Investitionskosten verringert werden. It has been found that the optimum pressure range a water jet between 1500 bar and 2000 bar. Above 2000 bar, the surface is too damaged, under 1500 bar is the formation of undercuts too low. In addition, it is possible for these relatively low pressures pumps existing printing equipment such as for component deburring which reduces the investment costs become.

Das erfindungsgemäße Aufrauen der Oberfläche erfolgt bevorzugt durch einen oder mehrere Flachstrahldüsen, die eine elliptische Öffnung aufweist. Derartige Düsen liefern im Gegensatz zu Vollstrahldüsen mit kreisförmiger Öffnung zu einen aufgeweiteten Oberflächenstrahl und zu einer rillenfreien Oberfläche. Die Anwendung mehrerer Düsen gleichzeitig verringert die Bearbeitungszeit.The roughening of the surface according to the invention is preferably carried out by one or more flat jet nozzles that are elliptical Opening has. Such nozzles deliver in contrast to full jet nozzles with a circular opening to one expanded surface beam and a groove-free Surface. The application of several nozzles reduced at the same time the processing time.

Zu Erzielung einer besonders rillenfreien Oberfläche liegt ein Austrittswinkel des Hochdruckwasserstrahls zwischen 20 und 34°.To achieve a particularly groove-free surface is an exit angle of the high pressure water jet between 20 and 34 °.

Eine besonders zweckmäßige Art die Oberfläche wirtschaftlich und schnell aufzurauen ist die Anwendung eines Feldes von Düsen, die bevorzugt senkrecht zur Oberfläche angeordnet sind.A particularly convenient way the surface economically and quickly roughen is the application of a field of jets, which are preferably arranged perpendicular to the surface.

Sehr gut geeignet zur Aufrauung der Oberfläche nach dem erfindungsgemäßen Verfahren sind übereutektische Aluminium-Siliziumlegierungen. Halbzeuge aus derartigen Werkstoffen weisen an der Oberfläche harte siliziumreiche Phasen und relativ weiche aluminiumreiche Phasen auf. Die harten, siliziumreichen Phasen werden durch das Wasserstrahlen herausgerissen und hinterlassen die gewünschten Hinterschnitte an der Oberfläche.Very suitable for roughening the surface according to the invention Methods are hypereutectic aluminum-silicon alloys. Semi-finished products made of such materials have hard silicon rich phases and relative to the surface soft aluminum rich phases. The hard, silicon-rich Phases are torn out by water jetting and leave the desired undercuts on the Surface.

Im Folgenden wird das erfindungsgemäße Verfahren an Hand von einem Beispiel und zwei Figuren näher erläutert.The method according to the invention is described below with reference to FIG an example and two figures explained in more detail.

Es zeigen:

Fig. 1
eine Anordnung von drei Wasserstrahldüsen und einem Halbzeug,
Fig. 2
Schnitt durch eine wassergestrahlte Oberfläche.
Show it:
Fig. 1
an arrangement of three water jet nozzles and a semi-finished product,
Fig. 2
Section through a water-blasted surface.

Beispielexample

Eine Feld 1 von 3 Flachstrahldüsen 3 -wie in Fig. 1 dargestellt- mit hier nicht erkennbaren elliptischen Öffnungen vom Durchmesser 2,5 mm, wird senkrecht zu einer rotierenden Zylinderlaufbuchse 5 aus einer übereutektischen Aluminium-Silizium-Legierung positioniert. Der Abstand 9 zwischen Düsenöffnung und der Zylinderlaufbuchse 5 beträgt 12 mm. Die Rotationsgeschwindigkeit der Zylinderlaufbuchse 5 beträgt 600 Umdrehungen pro Minute. Gleichzeit beschreibt das Düsenfeld 1 eine Längsbewegung entlang der Längsachse der Zylinderlaufbuchse mit einer Geschwindigkeit von 10 mm/s.A field 1 of 3 flat jet nozzles 3 -as shown in FIG. 1 -with ellipsoidal openings of diameter 2.5 mm, not visible here, is positioned perpendicular to a rotating cylinder liner 5 made of a hypereutectic aluminum-silicon alloy. The distance 9 between the nozzle opening and the cylinder liner 5 is 12 mm. The rotational speed of the cylinder liner 5 is 600 revolutions per minute. At the same time, the nozzle field 1 describes a longitudinal movement along the longitudinal axis of the cylinder liner at a speed of 10 mm / s.

Das Strahlmedium Wasser enthält einen Neutralreiniger mit einer Konzentration von ca. 1,5 %. Das Strahlmedium tritt in Form eines Wasserstrahls 7 aus der Düse 3 aus und beschreibt dabei einen Öffnungswinkel α von 30°. Der Wasserstrahl 7 weist beim Austritt aus der Düsenöffnung einen Druck von 1900 bar auf. Durch den Wasserstrahl wird eine Oberfläche 11 erzeugt, wie sie in Fig. 2 dargestellt ist. Die Oberfläche 11 weist Hinterschneidungen 13 auf, die durch das Herausbrechen von hier nicht dargestellten silziumreichen Phasen herrührt. Der Mittenrauwert Ra der so erzeugten Oberfläche beträgt 8,4 um, die gemittelte Rautiefe Rz beträgt 55,3 um.The blasting medium water contains a neutral cleaner with a concentration of approx. 1.5%. The jet medium emerges from the nozzle 3 in the form of a water jet 7 and describes an opening angle α of 30 °. The water jet 7 has at the outlet from the nozzle opening to a pressure of 1900 bar. By the water jet, a surface 11 is generated, as shown in Fig. 2 . The surface 11 has undercuts 13, which results from the breaking out of silicon-rich phases, not shown here. The average roughness Ra of the surface thus produced is 8.4 μm, the average roughness Rz is 55.3 μm.

Die so vorbehandelte Zylinderlaufbuchse wird in einem Druckgusswerkzeug auf Pinolen positioniert, das Werkzeug wird geschlossen und ein so entstandener Formhohlraum, der ein Zylinderkurbelgehäuse abbildet, wird unter Druck (ca. 800 bar) mit einer flüssigen Aluminiumlegierung (AlSi9Cu3) gefüllt. Während des Füllens umströmt das Aluminium die Zylinderlaufbuchse und dringt in die Bereiche der Hinterschneidungen 13 ein. Nach dem Erstarren des Aluminiums entsteht eine feste Verklammerung zwischen dem erstarrten Aluminium und der Oberfläche der Zylinderlaufbuchse (Grenzfläche). Die Haftfestigkeit dieser Grenzfläche ist zweimal so hoch wie die einer Grenzfläche mit sandgestrahlter Oberfläche des Einlegeteils. The pretreated cylinder liner is in a die casting tool positioned on quills, the tool is closed and a resulting mold cavity, which is a cylinder crankcase depicts is pressurized (about 800 bar) filled with a liquid aluminum alloy (AlSi9Cu3). During filling, the aluminum flows around the cylinder liner and penetrates into the areas of the undercuts 13 on. After solidification of the aluminum creates a solid Clamping between the solidified aluminum and the surface the cylinder liner (interface). The adhesive strength this interface is twice as high as one Interface with sandblasted surface of the insert.

Im Gegensatz zu anderen Strahlverfahren wird bei der Anwendung auf aluminiumreichen Oberflächen eine Adsorbtionsschicht und eine sich auf Grund der hohen Sauerstoffaffinität bildende Oxidschicht entfernt. Es wird durch das erfindungsgemäße Verfahren bezüglich des Anschmelzens der Oberfläche und einer daraus resultierenden metallischen Bindung eine hochaktive Oberfläche des Halbzeugs geschaffen.Unlike other blasting method is applied in the application on aluminum-rich surfaces an adsorbing layer and one which forms due to the high oxygen affinity Oxide layer removed. It is by the inventive Method of melting the surface and a resulting metallic bond is a highly active Surface of the semi-finished created.

Das erfindungsgemäße Verfahren kann auf alle gängige Gießverfahren, bei denen Einlegeteile eingießbar sind, angewendet werden. Dazu gehören insbesondere der konventionelle Druckguss, das Squeeze Casting, Thixocasting, Thixomolding, Kokillenguss, Sandguss, Feinguss und bei entsprechend temperaturbeständigen Einlegeteilen alle Arten des Eisengusses.The method according to the invention can be applied to all common casting methods, where inserts are pourable applied become. These include, in particular, conventional die-casting, squeeze casting, thixocasting, thixomolding, chill casting, Sand casting, precision casting and, if appropriate, temperature-resistant Inlay all types of iron casting.

Die im vorangegangenen Beispiel genannten Parameter sind auf einen bestimmten Anwendungsfall optimiert. Je nach Anwendungsfall können die Parameter wie folgt variieren. Der Abstand zwischen der Düsenöffnung und der Oberfläche des Einlegeteils kann zwischen 10 mm und 30 mm betragen. Der Druck des Wasserstrahls liegt zwischen 1500 bar und 2000 bar, der Austrittswinkel zwischen 25° und 34°. Die Rotationsgeschwindigkeit des Einlegeteils liegt zwischen 100 und 1000/min, wobei die Vorschubgeschwindigkeit der Düse oder des Düsenfeldes zwischen 2 mm/s und 50 mm/s variiert.The parameters mentioned in the previous example are on optimized for a specific application. Depending on the application the parameters may vary as follows. The distance between the nozzle opening and the surface of the insert can be between 10 mm and 30 mm. The pressure of Water jet is between 1500 bar and 2000 bar, the exit angle between 25 ° and 34 °. The rotation speed of the insert is between 100 and 1000 / min, where the feed rate of the nozzle or the nozzle field varies between 2 mm / s and 50 mm / s.

Die beiden letzt genannten Parameter sind besonders wichtig für die Beschaffenheit der Oberfläche, nämlich die Form und Häufigkeit der Hinterschneidungen, die mikroskopische Oberflächenrauigkeit und die makroskopische Ebenheit (Vermeidung von Rillenbildung). Bei nicht rotationssymmetrischen Einlegeteilen wird auf eine Rotation des Einlegeteils während des Wasserstrahlens verzichtet.The last two parameters are especially important for the nature of the surface, namely the shape and Frequency of undercuts, the microscopic surface roughness and the macroscopic flatness (avoidance of groove formation). For non-rotationally symmetrical inserts is due to a rotation of the insert during the Water jet dispensed.

Das Düsenfeld oder die einzelne Düse ist bei herkömmlichen Anlagen zum Hochdruckwasserstrahlen mit dicken und schwer beweglichen Versorgungsleitungen verbunden. Die freie Bewegung der Düsen ist demnach eingeschränkt. In vielen Fällen ist es zweckmäßig, das zu bestrahlende Einlegteil relativ zum Düsenfeld oder zur Düse zu bewegen. In einem einfachen Fall erfolgt dies, wie im Beispiel beschrieben, durch Rotation. In anderen Fällen erfolgt die Relativbewegung durch eine geeignete Mimik bzw. durch Roboter.The nozzle array or single nozzle is conventional Systems for high-pressure water jetting with thick and difficult to move Supply lines connected. The free movement the nozzles is therefore limited. In many cases it is expediently, the insert part to be irradiated relative to the nozzle field or to move to the nozzle. In a simple case occurs this, as described in the example, by rotation. In In other cases, the relative movement is carried out by a suitable Facial expressions or by robots.

Claims (6)

Verfahren zum Eingießen eines Halbzeugs in ein Gussbauteil, wobei das Halbzeug an einer dem Gussteil zugewanden Oberfläche aufgeraut wird, anschließend in ein Gießwerkzeug lagedefiniert positioniert wird, mit Gießmetall umgossen wird, wonach eine feste Verbindung zwischen dem Halbzeug und dem erstarrten Gießmetall an der aufgerauten Oberfläche erfolgt,
dadurch gekennzeichnet, dass die Oberfläche des Halbzeugs durch Hochdruck-Wasserstrahlen aufgeraut wird.A method of pouring a semifinished product into a cast component, wherein the semifinished product is roughened on a surface which is attached to the casting, is subsequently positioned in a casting tool, cast metal is poured over, followed by a firm connection between the semifinished product and the solidified cast metal at the roughened surface .
characterized in that the surface of the semifinished product is roughened by high-pressure water jets. Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass der Wasserdruck zwischen 1500 bar und 2000 bar beträgt.Method according to claim 1,
characterized in that the water pressure is between 1500 bar and 2000 bar. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass das Aufrauen durch mindestens eine Düse mit einer elliptischer Öffnung erfolgt.Method according to claim 1 or 2,
characterized in that the roughening is performed by at least one nozzle with an elliptical opening. Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass ein Austrittswinkel eines Wasserstrahls aus der mindestens einen Düse zwischen 25° und 34° beträgt.Method according to one of claims 1 to 3,
characterized in that an exit angle of a jet of water from the at least one nozzle is between 25 ° and 34 °. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass ein Feld von mindestens zwei Düsen, senkrecht zur Oberfläche gerichtet wird. Method according to one of claims 1 to 4,
characterized in that a field of at least two nozzles, is directed perpendicular to the surface. Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass das Halbzeug aus einer übereutektischen Aluminium-Silizium-Legierung besteht.Method according to one of claims 1 to 5,
characterized in that the semifinished product consists of a hypereutectic aluminum-silicon alloy.
EP02022836A 2001-10-31 2002-10-12 Process for insert moulding a metallic insert Expired - Lifetime EP1308227B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10153305 2001-10-31
DE10153305A DE10153305A1 (en) 2001-10-31 2001-10-31 Method for pouring a metallic semifinished product

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EP1308227A1 true EP1308227A1 (en) 2003-05-07
EP1308227B1 EP1308227B1 (en) 2006-12-13

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EP (1) EP1308227B1 (en)
JP (1) JP2003181619A (en)
DE (2) DE10153305A1 (en)

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JP2003181619A (en) 2003-07-02
DE10153305A1 (en) 2003-05-28

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