EP1612286B1 - Aluminium alloy for pressure die casting - Google Patents

Aluminium alloy for pressure die casting Download PDF

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Publication number
EP1612286B1
EP1612286B1 EP05405361A EP05405361A EP1612286B1 EP 1612286 B1 EP1612286 B1 EP 1612286B1 EP 05405361 A EP05405361 A EP 05405361A EP 05405361 A EP05405361 A EP 05405361A EP 1612286 B1 EP1612286 B1 EP 1612286B1
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Prior art keywords
aluminium alloy
ppm
alloy according
titanium
aluminium
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EP1612286A2 (en
EP1612286A3 (en
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Hubert Koch
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Aluminium Rheinfelden GmbH
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Aluminium Rheinfelden GmbH
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Priority to SI200531356T priority Critical patent/SI1612286T1/en
Priority to PL05405361T priority patent/PL1612286T3/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C22C21/04—Modified aluminium-silicon alloys

Definitions

  • the invention relates to an aluminum alloy for die casting of components with high elongation in the cast state.
  • the die casting technology has developed so far today that it is possible to produce components with high quality standards.
  • the quality of a die-cast part depends not only on the machine setting and the chosen method, but also to a great extent on the chemical composition and microstructure of the aluminum alloy used. These two latter parameters are known to influence the castability, the feeding behavior ( G. Schindelbauer, J. Czikel “Shape Fillability and Volume Deficit of Common Die Casting Alloys", foundry research 42, 1990, p. 88/89 ), the mechanical properties and - especially important in diecasting - the lifespan of the Casting Tools (LA Norström, B. Klarenfjord, M. Svenson “General Aspect on Wash-out Mechanism in Aluminum Diecasting Dies", 17th International NADCA Diecasting Congress 1993, Cleveland OH ).
  • the die-cast parts In order that the required mechanical properties, in particular a high elongation at break, can be achieved, the die-cast parts usually have to be subjected to a heat treatment.
  • This heat treatment is necessary for the molding of the casting phases and thus for achieving a tough breaking behavior.
  • a heat treatment usually means a solution annealing at temperatures just below the solidus temperature with subsequent quenching in water or another medium to temperatures ⁇ 100 ° C.
  • the material thus treated now has a low yield strength and tensile strength.
  • a thermal aging is then carried out. This can also be done by the process, e.g. by thermal application during painting or by stress-relief annealing of an entire group of components.
  • die castings are cast close to the final dimensions, they usually have a complicated geometry with thin wall thicknesses.
  • delays have to be expected, such as reworking, e.g. by directing the castings or, in the worst case, rejects.
  • the solution annealing also causes additional costs and the economics of this production method could be significantly increased if alloys were available which meet the required properties without a heat treatment.
  • AISi alloy with good mechanical values in the as-cast state is known from US Pat EP-A-0 687 742 known.
  • EP-A-0 911 420 AlMg alloys which have a very high ductility in the cast state, but tend to have hot or cold cracks in the case of a complicated shape design and are therefore unsuitable.
  • Another disadvantage of ductile die-cast alloys is their slow aging in the cast state, which causes a temporal change in the mechanical properties, including a loss of elongation. can result. This behavior is tolerated in many applications, since the property limits are not exceeded or fallen below, but is not tolerable in some applications and can only be turned off by a targeted heat treatment.
  • the invention has for its object to provide a die casting suitable aluminum alloy, which is very easy to cast, has a high elongation in the cast state and no longer ages after casting.
  • the alloy should be well weldable and crimpable, can be riveted and have a high corrosion resistance.
  • the alloy composition according to the invention it is possible to achieve a high elongation in die-cast parts in the cast state with good values for the yield strength and the tensile strength, so that the alloy is particularly suitable for the production of safety components in the automotive industry.
  • molybdenum it has been found that by adding molybdenum, the elongation can be increased again without loss of the other mechanical properties.
  • the desired effect is achieved with an addition of 0.08 to 0.25 wt .-% Mo.
  • the elongation can be even further improved.
  • the preferred content is 0.10 to 0.18 wt% Zr.
  • the relatively large proportion of eutectic silicon is refined by strontium. Compared to granular die-cast alloys with higher impurities, the alloy according to the invention also has advantages in terms of fatigue strength.
  • the fracture toughness is higher due to the very small present mixed crystals and the refined eutectic.
  • the strontium content is preferably between 50 and 150 ppm and should generally not fall below 50 ppm, since otherwise the casting behavior can be worsened. Instead of strontium, sodium and / or calcium may be added.
  • the preferred silicon content is 8.0 to 10.0 wt% Si.
  • the limitation of the magnesium content to 0.08 to 0.25 wt .-% Mg causes the eutectic structure is not significantly coarsened and the alloy has only a low curing potential, which contributes to a high elongation.
  • the proportion of manganese prevents sticking in the mold and ensures good mold release.
  • the manganese content gives the casting a high structural strength at elevated temperature, so that with demolding with very little to no distortion is expected.
  • the iron content is preferably limited to max. Limited to 0.25 wt .-% Fe.
  • the alloy according to the invention can be riveted in the cast state.
  • the alloy according to the invention is preferably produced as a horizontal continuous casting ingot.
  • a die-cast alloy with low oxide contamination can be melted without expensive melt cleaning: an important prerequisite for achieving high elongation values in the die-cast part.
  • any contamination of the melt, in particular by copper or iron, must be avoided.
  • the cleaning of the inventive time-finished AISi alloy is preferably carried out by means of a purge gas treatment with inert gases by means of an impeller.
  • Grain refining is preferably carried out in the case of the alloy according to the invention.
  • the alloy gallium phosphide and / or indium phosphide in an amount corresponding to 1 to 250 ppm, preferably 1 to 30 ppm of phosphorus can be supplied.
  • the alloy for grain refining may also contain titanium and boron, the addition of titanium and boron via a master alloy with 1 to 2 wt .-% Ti and 1 to 2 wt .-% B, balance aluminum.
  • the aluminum master alloy contains 1.3 to 1.8% by weight of Ti and 1.3 to 1.8% by weight of B, and has a Ti / B weight ratio of about 0.8 to 1.2.
  • the content of the master alloy in the alloy of the present invention is preferably adjusted to 0.05 to 0.5% by weight.
  • the aluminum alloy according to the invention is particularly suitable for the production of safety components in diecasting.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Body Structure For Vehicles (AREA)
  • Mold Materials And Core Materials (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Metal Extraction Processes (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

The aluminum alloy for die casting, especially with high ductility and expansion in the casting condition for the automotive industry, incorporates selectively 0.05-0.3 wt.% zirconium, 30-300 ppm of strontium or 5-30 ppm of sodium and/or 1-30 ppm of calcium for durable refinement of gallium phosphide and/or indium phosphide in a volume to give 1-250 ppm of phosphorus for granular refinement, and titanium and boron introduced into aluminum pre-alloy, with 1-2 wt. % titanium and 1-2 wt.% boron, for grain refining : The aluminum alloy incorporates (in wt.%) 8.0-11.5 silicon, 0.08-0.4 magnesium, 0.3-0.8 manganese, =0.1 iron, =0.1 copper, =0.1 zinc, =0.15 titanium, =0.05-0.5 molybdenum, and =0.05-0.3 zirconium.

Description

Die Erfindung betrifft eine Aluminiumlegierung zum Druckgiessen von Bauteilen mit hoher Dehnung im Gusszustand.The invention relates to an aluminum alloy for die casting of components with high elongation in the cast state.

Die Druckgiesstechnik hat sich heute soweit entwickelt, dass es möglich ist, Bauteile mit hohen Qualitätsansprüchen herzustellen. Die Qualität eines Druckgussteils hängt aber nicht nur von der Maschineneinstellung und dem gewählten Verfahren ab, sondern in hohem Masse auch von der chemischen Zusammensetzung und der Gefügestruktur der verwendeten Aluminiumlegierung. Diese beiden letztgenannten Parameter beeinflussen bekanntermassen die Giessbarkeit, das Speisungsverhalten ( G. Schindelbauer, J. Czikel "Formfüllungsvermögen und Volumendefizit gebräuchlicher Aluminiumdruckgusslegierungen", Giessereiforschung 42, 1990, S. 88/89 ), die mechanischen Eigenschaften und -- beim Druckgiessen ganz besonders wichtig -- die Lebensdauer der Giesswerkzeuge (L.A. Norström, B. Klarenfjord, M. Svenson "General Aspects on Wash-out Mechanism in Aluminium Diecasting Dies", 17. International NADCA Diecastingcongress 1993, Cleveland OH ).The die casting technology has developed so far today that it is possible to produce components with high quality standards. However, the quality of a die-cast part depends not only on the machine setting and the chosen method, but also to a great extent on the chemical composition and microstructure of the aluminum alloy used. These two latter parameters are known to influence the castability, the feeding behavior ( G. Schindelbauer, J. Czikel "Shape Fillability and Volume Deficit of Common Die Casting Alloys", foundry research 42, 1990, p. 88/89 ), the mechanical properties and - especially important in diecasting - the lifespan of the Casting Tools (LA Norström, B. Klarenfjord, M. Svenson "General Aspect on Wash-out Mechanism in Aluminum Diecasting Dies", 17th International NADCA Diecasting Congress 1993, Cleveland OH ).

In der Vergangenheit wurde der Entwicklung von speziell für das Druckgiessen anspruchsvoller Bauteile geeigneten Aluminiumlegierungen einige Aufmerksamkeit geschenkt. Gerade von Konstrukteuren der Automobilindustrie wird immer mehr gefordert, z. B. schweissbare Bauteile mit hoher Duktilität im Druckguss zu realisieren, da bei hohen Stückzahlen das Druckgiessen die kostengünstigste Produktionsmethode darstellt.In the past, some attention has been paid to the development of aluminum alloys that are especially suitable for the die casting of demanding components. Especially by designers of the automotive industry is increasingly required, for. B. to realize weldable components with high ductility in die casting, since at high quantities die casting is the most cost-effective production method.

Durch die Weiterentwicklung der Druckgiesstechnik ist es heute möglich, schweissbare Bauteile von hoher Qualität herzustellen. Dies hat den Anwendungsbereich für Druckgussteile auf Komponenten im Chassis erweitert.
Der Duktilität kommt gerade bei kompliziert gestalteten Teilen immer mehr Bedeutung zu.Thanks to the further development of die casting technology, it is now possible to produce weldable components of high quality. This has expanded the scope of application for die castings to components in the chassis.
Ductility is becoming more and more important, especially for complicated parts to.

Damit die geforderten mechanischen Eigenschaften, insbesondere eine hohe Bruchdehnung, erreicht werden können, müssen die Druckgussteile üblicherweise einer Wärmebehandlung unterzogen werden. Diese Wärmebehandlung ist zur Einformung der Gussphasen und damit zur Erzielung eines zähen Bruchverhaltens notwendig. Eine Wärmebehandlung bedeutet in der Regel eine Lösungsglühung bei Temperaturen knapp unterhalb der Solidustemperatur mit nachfolgendem Abschrecken in Wasser oder einem anderen Medium auf Temperaturen <100°C. Der so behandelte Werkstoff weist nun eine geringe Dehngrenze und Zugfestigkeit auf. Um diese Eigenschaften auf den gewünschten Wert zu heben, wird anschliessend eine Warmauslagerung durchgeführt. Diese kann auch prozessbedingt erfolgen, z.B. durch eine thermische Beaufschlagung beim Lackieren oder durch das Entspannungsglühen einer ganzen Bauteilgruppe.In order that the required mechanical properties, in particular a high elongation at break, can be achieved, the die-cast parts usually have to be subjected to a heat treatment. This heat treatment is necessary for the molding of the casting phases and thus for achieving a tough breaking behavior. A heat treatment usually means a solution annealing at temperatures just below the solidus temperature with subsequent quenching in water or another medium to temperatures <100 ° C. The material thus treated now has a low yield strength and tensile strength. In order to raise these properties to the desired value, a thermal aging is then carried out. This can also be done by the process, e.g. by thermal application during painting or by stress-relief annealing of an entire group of components.

Da Druckgussteile endabmessungsnah gegossen werden, haben sie meist eine komplizierte Geometrie mit dünnen Wandstärken. Während des Lösungsglühens und besonders beim Abschreckprozess muss mit Verzug gerechnet werden, der eine Nacharbeit z.B. durch Richten der Gussteile oder im schlimmsten Fall Ausschuss nach sich ziehen kann. Die Lösungsglühung verursacht zudem zusätzliche Kosten und die Wirtschaftlichkeit dieser Produktionsmethode könnte wesentlich erhöht werden, wenn Legierungen zur Verfügung stehen würden, welche die geforderten Eigenschaften ohne eine Wärmebehandlung erfüllen.Because die castings are cast close to the final dimensions, they usually have a complicated geometry with thin wall thicknesses. During solution annealing, and especially during the quenching process, delays have to be expected, such as reworking, e.g. by directing the castings or, in the worst case, rejects. The solution annealing also causes additional costs and the economics of this production method could be significantly increased if alloys were available which meet the required properties without a heat treatment.

Eine AISi-Legierung mit guten mechanischen Werten im Gusszustand ist aus der EP-A-0 687 742 bekannt. Auch sind beispielsweise aus der EP-A-0 911 420 Legierungen vom Typ AlMg bekannt, die im Gusszustand eine sehr hohe Duktilität aufweisen, bei kompliziertem Form-Design aber zu Warm- oder Kaltrissen neigen und deshalb ungeeignet sind. Ein weiterer Nachteil duktiler Druckgusslegierungen ist deren langsame Alterung im Gusszustand, was eine zeitliche Veränderung der mechanischen Eigenschaften -- u.a. ein Verlust an Dehnung -- zur Folge haben kann. Dieses Verhalten wird bei vielen Anwendungen toleriert, da die Eigenschaftsgrenzen nicht über- oder unterschritten werden, ist aber bei einigen Anwendungen nicht tolerierbar und kann nur durch eine gezielte Wärmebehandlung ausgeschaltet werden.AISi alloy with good mechanical values in the as-cast state is known from US Pat EP-A-0 687 742 known. Also, for example, from the EP-A-0 911 420 AlMg alloys are known which have a very high ductility in the cast state, but tend to have hot or cold cracks in the case of a complicated shape design and are therefore unsuitable. Another disadvantage of ductile die-cast alloys is their slow aging in the cast state, which causes a temporal change in the mechanical properties, including a loss of elongation. can result. This behavior is tolerated in many applications, since the property limits are not exceeded or fallen below, but is not tolerable in some applications and can only be turned off by a targeted heat treatment.

Aus GB-A-605 282 ist es bekannt, einer AlSi-Legierung zur Kornfeinung 0,02 bis 0,5 gew.-% Molybdän zuzugeben.Out GB-A-605282 It is known to add 0.02 to 0.5 wt .-% molybdenum to an AlSi alloy for grain refining.

Der Erfindung liegt die Aufgabe zugrunde, eine zum Druckgiessen geeignete Aluminiumlegierung bereitzustellen, die sehr gut giessbar ist, im Gusszustand eine hohe Dehnung aufweist und nach dem Giessen nicht mehr altert. Darüber hinaus soll die Legierung gut schweissbar und bördelbar sein, genietet werden können und eine hohe Korrosionsbeständigkeit aufweisen.The invention has for its object to provide a die casting suitable aluminum alloy, which is very easy to cast, has a high elongation in the cast state and no longer ages after casting. In addition, the alloy should be well weldable and crimpable, can be riveted and have a high corrosion resistance.

Erfindungsgemäss wird die Aufgabe gelöst durch eine Aluminiumlegierung mit den Merkmalen des Anspruchs 1.According to the invention, the object is achieved by an aluminum alloy having the features of claim 1.

Mit der erfindungsgemässen Legierungszusammensetzung lässt sich bei Druckgussteilen im Gusszustand bei guten Werten für die Dehngrenze und die Zugfestigkeit eine hohe Dehnung erzielen, so dass die Legierung insbesondere zur Herstellung von Sicherheitsbauteilen im Automobilbau geeignet ist. Überraschenderweise hat sich gezeigt, dass durch eine Zugabe von Molybdän die Dehnung ohne Einbusse bei den anderen mechanischen Eigenschaften nochmals angehoben werden kann. Die gewünschte Wirkung wird mit einer Zugabe von 0,08 bis 0,25 Gew.-% Mo erreicht.With the alloy composition according to the invention, it is possible to achieve a high elongation in die-cast parts in the cast state with good values for the yield strength and the tensile strength, so that the alloy is particularly suitable for the production of safety components in the automotive industry. Surprisingly, it has been found that by adding molybdenum, the elongation can be increased again without loss of the other mechanical properties. The desired effect is achieved with an addition of 0.08 to 0.25 wt .-% Mo.

Mit einer kombinierten Zugabe von Molybdän und 0,05 bis 0,3 Gew.-% Zr kann die Dehnung sogar noch weiter verbessert werden. Der bevorzugte Gehalt liegt bei 0,10 bis 0,18 Gew.-% Zr.With a combined addition of molybdenum and 0.05 to 0.3 wt% Zr, the elongation can be even further improved. The preferred content is 0.10 to 0.18 wt% Zr.

Der relativ grosse Anteil eutektischen Siliziums wird durch Strontium veredelt. Gegenüber körnigen Druckgusslegierungen mit höheren Verunreinigungen besitzt die erfindungsgemässe Legierung auch Vorteile hinsichtlich der Dauerschwingfestigkeit. Die Risszähigkeit ist aufgrund der sehr klein vorliegenden Mischkristalle und des veredelten Eutektikums höher. Der Strontiumgehalt liegt bevorzugt zwischen 50 und 150 ppm und sollte im allgemeinen nicht unter 50 ppm fallen, da sonst das Giessverhalten verschlechtert werden kann. Anstelle von Strontium kann Natrium und/oder Calcium zugegeben werden.The relatively large proportion of eutectic silicon is refined by strontium. Compared to granular die-cast alloys with higher impurities, the alloy according to the invention also has advantages in terms of fatigue strength. The fracture toughness is higher due to the very small present mixed crystals and the refined eutectic. The strontium content is preferably between 50 and 150 ppm and should generally not fall below 50 ppm, since otherwise the casting behavior can be worsened. Instead of strontium, sodium and / or calcium may be added.

Der bevorzugte Siliziumgehalt beträgt 8,0 bis 10,0 Gew.-% Si.The preferred silicon content is 8.0 to 10.0 wt% Si.

Die Beschränkung des Magnesiumgehaltes auf 0,08 bis 0,25 Gew.-% Mg bewirkt, dass das eutektische Gefüge nicht nennenswert vergröbert wird und die Legierung nur ein geringes Aushärtungspotential hat, was zu einer hohen Dehnung beiträgt.The limitation of the magnesium content to 0.08 to 0.25 wt .-% Mg causes the eutectic structure is not significantly coarsened and the alloy has only a low curing potential, which contributes to a high elongation.

Durch den Anteil an Mangan wird das Kleben in der Form vermieden und eine gute Entformbarkeit gewährleistet. Der Mangangehalt gibt dem Gussteil eine hohe Gestaltfestigkeit bei erhöhter Temperatur, so dass beim Entformen mit sehr geringem bis gar keinem Verzug zu rechnen ist.
Der Eisengehalt wird vorzugsweise auf max. 0,25 Gew.-% Fe beschränkt.The proportion of manganese prevents sticking in the mold and ensures good mold release. The manganese content gives the casting a high structural strength at elevated temperature, so that with demolding with very little to no distortion is expected.
The iron content is preferably limited to max. Limited to 0.25 wt .-% Fe.

Die erfindungsgemässe Legierung lässt sich im Gusszustand nieten.The alloy according to the invention can be riveted in the cast state.

Mit einer Stabilisierungsglühung während 1 bis 2 h in einem Temperaturbereich von etwa 280 bis 320° C können sehr hohe Dehnungswerte erreicht werden.With a stabilization annealing for 1 to 2 h in a temperature range of about 280 to 320 ° C very high elongation values can be achieved.

Die erfindungsgemässe Legierung wird bevorzugt als Horizontal-Stranggussmassel hergestellt. Damit kann ohne aufwendige Schmelzereinigung eine Druckgusslegierung mit geringer Oxidverunreinigung erschmolzen werden: eine wichtige Voraussetzung zur Erzielung hoher Dehnungswerte im Druckgussteil.The alloy according to the invention is preferably produced as a horizontal continuous casting ingot. Thus, a die-cast alloy with low oxide contamination can be melted without expensive melt cleaning: an important prerequisite for achieving high elongation values in the die-cast part.

Beim Einschmelzen ist jede Verunreinigung der Schmelze, insbesondere durch Kupfer oder Eisen, zu vermeiden. Die Reinigung der erfindungsgemässen dauerveredelten AISi-Legierung erfolgt bevorzugt mittels einer Spülgasbehandlung mit inerten Gasen mittels Impeller.During melting, any contamination of the melt, in particular by copper or iron, must be avoided. The cleaning of the inventive time-finished AISi alloy is preferably carried out by means of a purge gas treatment with inert gases by means of an impeller.

Bevorzugt wird bei der erfindungsgemässen Legierung eine Kornfeinung durchgeführt. Hierzu kann der Legierung Galliumphosphid und/oder Indiumphosphid in einer Menge entsprechend 1 bis 250 ppm, vorzugsweise 1 bis 30 ppm Phosphor zugeführt werden. Alternativ oder zusätzlich kann die Legierung zur Kornfeinung auch Titan und Bor enthalten, wobei die Zugabe von Titan und Bor über eine Vorlegierung mit 1 bis 2 Gew.-% Ti und 1 bis 2 Gew.-% B, Rest Aluminium, erfolgt. Bevorzugt enthält die Aluminium-Vorlegierung 1,3 bis 1,8 Gew.-% Ti und 1,3 bis 1,8 Gew.-% B und weist ein Ti/B-Gewichtsverhältnis von etwa 0,8 bis 1,2 auf. Der Gehalt der Vorlegierung in der erfindungsgemässen Legierung wird bevorzugt auf 0,05 bis 0,5 Gew.-% eingestellt.Grain refining is preferably carried out in the case of the alloy according to the invention. For this purpose, the alloy gallium phosphide and / or indium phosphide in an amount corresponding to 1 to 250 ppm, preferably 1 to 30 ppm of phosphorus can be supplied. Alternatively or additionally, the alloy for grain refining may also contain titanium and boron, the addition of titanium and boron via a master alloy with 1 to 2 wt .-% Ti and 1 to 2 wt .-% B, balance aluminum. Preferably, the aluminum master alloy contains 1.3 to 1.8% by weight of Ti and 1.3 to 1.8% by weight of B, and has a Ti / B weight ratio of about 0.8 to 1.2. The content of the master alloy in the alloy of the present invention is preferably adjusted to 0.05 to 0.5% by weight.

Die erfindungsgemässe Aluminiumlegierung eignet sich insbesondere zur Herstellung von Sicherheitsbauteilen im Druckgiessverfahren.The aluminum alloy according to the invention is particularly suitable for the production of safety components in diecasting.

Claims (9)

  1. Aluminium alloy for diecasting of components with high elongation in the cast state with
    8.0 to 11.5 w.% silicon
    0.3 to 0.8 w.% manganese
    0.08 to 0,25 w.% magnesium
    max 0.4 w.% iron
    max 0.1 w.% copper
    max 0.1 w.% zinc
    max 0.15 w.% titanium
    0.08 to 0.25 w.% molybdenum
    optionally also
    0.05 to 0.3 w.% zirconium
    30 to 300 ppm strontium or 5 to 30 ppm sodium and/or 1 to 30 ppm calcium for permanent refinement,
    gallium phosphide and/or indium phosphide in a quantity corresponding to 1 to 250 ppm phosphorus for grain refinement
    titanium and boron added by way of an aluminium master alloy with 1 to 2 w.% Ti and 1 to 2 w.% B for grain refinement,
    and as the remainder aluminium and unavoidable impurities.
  2. Aluminium alloy according to claim 1, characterised by 50 to 150 ppm strontium.
  3. Aluminium alloy according to claim 1 or 2, characterised by 8.0 to 10.0 w.% silicon.
  4. Aluminium alloy according to claim 1 to 3, characterised by max 0.25 w.% iron.
  5. Aluminium alloy according to claim 1 or 4, characterised by 0.10 to 0.18 w.% zirconium.
  6. Aluminium alloy according to any of claims 1 to 5, characterised by gallium phosphide and/or indium phosphide in a quantity corresponding to 1 to 30 ppm phosphorus.
  7. Aluminium alloy according to any of claims 1 to 6, characterised by an aluminium master alloy with 1.3 to 1.8 w.% titanium and 1.3 to 1.8 w.% boron and a titanium/boron weight ratio between 0.8 and 1.2.
  8. Aluminium alloy according to claim 7, characterised by 0.05 to 0.5 w.% aluminium master alloy.
  9. Use of an aluminium alloy according to any of claims 1 to 8 for diecasting of safety components in car manufacture.
EP05405361A 2004-06-29 2005-05-26 Aluminium alloy for pressure die casting Active EP1612286B1 (en)

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Application Number Priority Date Filing Date Title
SI200531356T SI1612286T1 (en) 2004-06-29 2005-05-26 Aluminium alloy for pressure die casting
PL05405361T PL1612286T3 (en) 2004-06-29 2005-05-26 Aluminium alloy for pressure die casting

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Application Number Priority Date Filing Date Title
CH10912004 2004-06-29

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EP1612286A2 EP1612286A2 (en) 2006-01-04
EP1612286A3 EP1612286A3 (en) 2007-05-30
EP1612286B1 true EP1612286B1 (en) 2011-07-13

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US (1) US7108042B2 (en)
EP (1) EP1612286B1 (en)
JP (1) JP2006016693A (en)
KR (2) KR101295458B1 (en)
CN (1) CN1737176A (en)
AT (1) ATE516379T1 (en)
BR (1) BRPI0502521B8 (en)
CA (1) CA2510545C (en)
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KR101295458B1 (en) 2013-08-09
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EP1612286A2 (en) 2006-01-04
JP2006016693A (en) 2006-01-19
CN1737176A (en) 2006-02-22
NO339588B1 (en) 2017-01-09
CA2510545A1 (en) 2005-12-29
CA2510545C (en) 2014-09-30
BRPI0502521B8 (en) 2016-09-13
MXPA05006962A (en) 2006-01-24
KR20060046361A (en) 2006-05-17
SI1612286T1 (en) 2011-10-28
KR101490581B1 (en) 2015-02-05
US20060011321A1 (en) 2006-01-19
ATE516379T1 (en) 2011-07-15
BRPI0502521B1 (en) 2015-08-11
PL1612286T3 (en) 2011-12-30
KR20130023330A (en) 2013-03-07
PT1612286E (en) 2011-09-19
EP1612286A3 (en) 2007-05-30
DK1612286T3 (en) 2011-10-24
ES2368923T3 (en) 2011-11-23
NO20053158L (en) 2005-12-30
NO20053158D0 (en) 2005-06-28

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