WO2004005564A1 - Am-magnesium pressure die cast alloy and method for producing an interior fitting from an am-magnesium pressure die cast alloy - Google Patents
Am-magnesium pressure die cast alloy and method for producing an interior fitting from an am-magnesium pressure die cast alloy Download PDFInfo
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- WO2004005564A1 WO2004005564A1 PCT/EP2003/006728 EP0306728W WO2004005564A1 WO 2004005564 A1 WO2004005564 A1 WO 2004005564A1 EP 0306728 W EP0306728 W EP 0306728W WO 2004005564 A1 WO2004005564 A1 WO 2004005564A1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
Definitions
- the invention relates to an AM die-casting alloy, in particular for interior parts in the motor vehicle sector.
- AM20, 7 AM50 and AM60 alloys are suitable. With increasing aluminum content in the AM alloys, their castability, strength and corrosion resistance improve. However, their ductility deteriorates, which can be attributed to the Mg 17 Al ⁇ 2 grain boundary precipitations .
- interior parts such as steering wheels, interior door parts, tank rear walls and the like are subject to high crash requirements.
- Medium-strength alloys such as AM50 and AM60 were used for steering wheels to represent full-size In the crash and body impact test, however, these AM alloys were too brittle or failed due to premature spoke breakage.
- the invention is therefore based on the object of providing an AM alloy which is highly ductile, medium-strength and at the same time satisfactorily castable.
- the aluminum content lies between that of the standardized alloys AM20 and AM50.
- the aluminum content is between 3.5% by weight and 4.5% by weight, in particular between 3.8% by weight and 4.2% by weight, preferably 4% by weight.
- the castability, strength, corrosion resistance intensity and ductility can be set within certain limits.
- the AM die casting alloy is a MgAl4Mn alloy (AM40).
- AM40 MgAl4Mn alloy
- This alloy has an aluminum content and in particular further alloy components that lie between the values of AM20 and AM50 alloys.
- the AM die casting alloy according to the invention has a Mn content which is between 0.22% by weight and 0.60% by weight.
- the Cu content is ⁇ 100 ppm.
- the Ni content is below 20 ppm.
- the Fe content is also below 40 ppm.
- the Si content is below 0.10% by weight.
- the Zn content is below 0.22% by weight.
- the above-mentioned object is also achieved with a method for producing an interior part from the AM die-casting alloy mentioned at the outset in that it is quenched in water after the casting or after opening the die-casting mold.
- the tensile strength and the yield strength of the AM die-casting alloy according to the invention are significantly increased in comparison to air cooling, without being increased as a result of the increase in comparison with the known AM20 alloy
- Aluminum content deteriorates the toughness, since only a few coarse Mg ⁇ 7 Al ⁇ 2 grain boundary phases arise.
- the thermal stability of the structure is significantly improved under long-term exposure below 120 ° C.
- the roughly precipitated Mg 17 Al 12 grain boundary precipitates act as nucleating agents for further Mg 17 Al 12 phases, so that after thermal aging the grain boundaries are completely covered or anchored with Mg 7 Al 12 phases are. This leads to total material embrittlement.
- the interior part produced from the alloy according to the invention is preferably quenched in water within 60 s, in particular within 40 s, preferably within 30 s, after casting or after opening the die-casting mold. As mentioned above, this lowering of the temperature immediately after the casting process prevents coarse Mg ⁇ 7 Al 12 grain boundary phases from forming in excess.
- the elongation at break drops much more slowly than that of AM40 parts cooled in air.
- the good crash performance of the AM40 die-cast parts remains the same longer driving in hot tropical countries or if the component is placed near hot units as far as possible.
- the strength values and the corrosion resistance were determined on an AM40 steering wheel which was quenched in water.
- the spokes could be bent up to an angle of 60 ° before the first demolition.
- the minimum tensile strength in the spokes was 150 MPa, the minimum yield strength 110 MPa and the minimum elongation at break was around 10%.
- the same high strength properties are achieved as with AM50 and AM60 steering wheel skeletons, or the strength properties of AI die-cast steering wheels made of MgA12Mn die-cast.
- the crash performance, the strength properties of water-quenched steering wheel full skeletons were completely satisfactory.
- the AM40 alloy is more corrosion-resistant than the AM20 alloy in the climate change test.
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Abstract
The invention relates to an AM-pressure die cast alloy, in particular for interior fittings in the motor vehicle industry, whose Al content lies between the Al content of AM20 and AM50 alloys. The invention also relates to a method for producing an interior fitting from an alloy of this type, in which said fitting is quenched in water after casting, or after the die casting mould has been opened.
Description
AM-MAGNES UMDRUCKGUSSLEGIERUNG UND VERFAHREN ZUM HERSTELLEN EINES INTERIEURTEILS AUS EINER DERARTIGEN AM-MAGNESIUMDRUCKGUSSLEGIERUNGAM-MAGNES DIE CASTING ALLOY AND METHOD FOR PRODUCING AN INTERIOR PART FROM SUCH AN AM-MAGNESIUM CASTING ALLOY
Die Erfindung betrifft eine AM-Druckgusslegierung, insbesondere für Interieurteile im Kraftfahrzeugbereich.The invention relates to an AM die-casting alloy, in particular for interior parts in the motor vehicle sector.
Werden im Interieur von Fahrzeugen zwecks Leichtbau Magnesium-Legierungen für Druckgussteile verwendet, so kommen z.B. AM20-, 7AM50- und AM60-Legierungen in' Frage. Mit steigendem A- luminium-Gehalt in den AM-Legierungen verbessern sich deren Gießbarkeit, Festigkeit und Korrosionsbeständigkeit. Jedoch verschlechtert sich deren Duktilität, was auf die Mg17Alι2- Korngrenzenausscheidungen zurückzuführen ist. In einigen Fällen unterliegen Interieurteile, wie Lenkräder, Türinnenteile, Tankrückwände und dergleichen hohen Crash-Anforderungen. Für Lenkräder wurden mittelfeste Legierungen, wie AM50 und AM60 verwendet, um LenkradvollSkelette darzustellen. Im Crash- und Body-Aufschlagtest waren diese AM-Legierungen jedoch zu spröde, bzw. versagten durch frühzeitigen Speichenbruch. Deshalb wurde versucht, Lenkradvollskelette in der weniger festen, a- ber dafür hoch duktilen AM20-Legierung herzustellen. Zwar wurden die Crash-Anforderungen nunmehr erfüllt, jedoch war die Festigkeit von AM20-Lenkradvollskeletten zu gering. Sie verformten sich bereits im nprmalen Fahrbetrieb. Dies führt dazu, dass das Lenkradskelett nur am Außenkranz in Mg dargestellt werden kann, so dass sich zu duktilen, mittelfesten AI-Lenkradvollskeletten aus AlMg2Mn-Druckguss kein Gewichtsvorteil mehr ergab. Zudem war eine teure Fügetechnik erforderlich, um den Mg-Außenkranz mit den AI-Speichen und der
Stahlnabe des Lenkrades zu verbinden. Ein weiterer Nachteil besteht darin, dass sich AM20-Gussteile schlecht gießen lassen, wodurch schlechte Festigkeitswerte und hohe Ausschussraten resultieren.If magnesium alloys are used for die-cast parts in the interior of vehicles for the purpose of lightweight construction, AM20, 7 AM50 and AM60 alloys are suitable. With increasing aluminum content in the AM alloys, their castability, strength and corrosion resistance improve. However, their ductility deteriorates, which can be attributed to the Mg 17 Al ι2 grain boundary precipitations . In some cases, interior parts such as steering wheels, interior door parts, tank rear walls and the like are subject to high crash requirements. Medium-strength alloys such as AM50 and AM60 were used for steering wheels to represent full-size In the crash and body impact test, however, these AM alloys were too brittle or failed due to premature spoke breakage. Therefore, attempts were made to produce full steering wheel skeletons in the less strong but highly ductile AM20 alloy. Although the crash requirements were now met, the strength of full AM20 steering wheel skeletons was too low. They were already deformed during normal driving. This means that the steering wheel skeleton can only be displayed in Mg on the outer rim, so that there is no longer any weight advantage for ductile, medium-strength AI steering wheel skeletons made of die-cast AlMg2Mn. In addition, an expensive joining technology was required to secure the Mg outer ring with the AI spokes and the Connect the steel hub of the steering wheel. Another disadvantage is that AM20 castings are difficult to cast, resulting in poor strength values and high reject rates.
Der Erfindung liegt daher die Aufgabe zugrunde, eine AM- Legierung bereitzustellen, die hoch duktil, mittelfest und gleichzeitig befriedigend gießbar ist.The invention is therefore based on the object of providing an AM alloy which is highly ductile, medium-strength and at the same time satisfactorily castable.
Diese Aufgabe wird mit einer AM-Druckgusslegierung der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass deren Aluminium-Gehalt zwischen dem AΪuminium-Gehalt der AM20- und der AM50-Legierungen liegt.This object is achieved according to the invention with an AM die-cast alloy of the type mentioned at the outset in that its aluminum content lies between the aluminum content of the AM20 and AM50 alloys.
Legierungstechnisch wurde erfindungsgemäß ein Kompromiss bezüglich Gießbarkeit, Festigkeit und Korrosionsbeständigkeit einerseits, was durch einen höheren Aluminium-Gehalt erzielt wird, und Duktilität andererseits, was durch einen niedrigeren Aluminium-Gehalt erzielt wird, eingegangen. In der erfindungsgemäßen AM-Druckgusslegierung liegt der Aluminium-Gehalt zwischen denen der genormten Legierungen AM20 und AM50.In terms of alloy technology, according to the invention a compromise was made with regard to castability, strength and corrosion resistance on the one hand, which is achieved by a higher aluminum content, and ductility on the other hand, which is achieved by a lower aluminum content. In the AM die casting alloy according to the invention, the aluminum content lies between that of the standardized alloys AM20 and AM50.
Gießversuche an Interieurteilen zeigten, dass AM-Legierungen ab einem Aluminium-Gehalt von 3,5 Gew.-% sich gut vergießen lassen. Die Gussteile zeigten keine Heißrisse. Ferner führt der im Vergleich zu einer AM20-Legierung höhere Aluminium- Gehalt zu der gewünschten Festigkeitssteigerung, was an der vermehrten Mgi7Alι2-Phasenbildung liegt. Da der Aluminium- Gehalt der erfindungsgemäßen AM-Druckgusslegierung nicht den Wert erreicht, den eine AM50- oder AM60-Legierung besitzt, besteht keine Gefahr, dass das Druckgussteil versprδdet .Casting tests on interior parts showed that AM alloys with an aluminum content of 3.5% or more can be cast easily. The castings showed no hot cracks. Furthermore, the higher aluminum content compared to an AM20 alloy leads to the desired increase in strength, which is due to the increased Mg i7 Alι 2 phase formation. Since the aluminum content of the AM die-casting alloy according to the invention does not reach the value that an AM50 or AM60 alloy has, there is no risk that the die-cast part will become brittle.
Erfindungsgemäß liegt der Aluminium-Gehalt zwischen 3,5 Gew.- % und 4,5 Gew.-%, insbesondere zwischen 3,8 Gew.-% und 4,2 Gew.-%, bevorzugt bei 4 Gew.-%. Durch die Wahl des Aluminium- Gehalts können die Gießbarkeit, Festigkeit, Korrosionsbestän-
digkeit und Duktilitat in gewissen Grenzen eingestellt werden.According to the invention, the aluminum content is between 3.5% by weight and 4.5% by weight, in particular between 3.8% by weight and 4.2% by weight, preferably 4% by weight. Through the choice of the aluminum content, the castability, strength, corrosion resistance intensity and ductility can be set within certain limits.
Gemäß der Erfindung ist die AM-Druckgusslegierung eine MgAl4Mn-Legierung (AM40) . Diese Legierung weist einen Aluminium-Gehalt und insbesondere weitere Legierungsbestandteile auf, die zwischen den Werten von AM20- und AM50-Legierungen liegen.According to the invention, the AM die casting alloy is a MgAl4Mn alloy (AM40). This alloy has an aluminum content and in particular further alloy components that lie between the values of AM20 and AM50 alloys.
Insbesondere besitzt die erfindungsgemäße AM-Druckgusslegierung einen Mn-Gehalt, der zwischen 0,22 Gew.-% und 0,60 Gew.- % liegt. Der Cu-Gehalt ist < 100 ppm. Der Ni-Gehalt liegt unter 20 ppm. Der Fe-Gehalt liegt ebenfalls unter 40 ppm. Der Si-Gehalt liegt unter 0,10 Gew.-%. Außerdem ist der Zn-Gehalt unterhalb von 0,22 Gew.-%.In particular, the AM die casting alloy according to the invention has a Mn content which is between 0.22% by weight and 0.60% by weight. The Cu content is <100 ppm. The Ni content is below 20 ppm. The Fe content is also below 40 ppm. The Si content is below 0.10% by weight. In addition, the Zn content is below 0.22% by weight.
Schließlich ist in der Mg-Matrix relativ viel AI gelöst. Hieraus ergibt sich eine hohe Duktilit t, was weiter unten noch näher beschrieben wird. Dies wird insbesondere dadurch erreicht, dass die erfindungsgemäße AM-Druckgusslegierung wasserabgeschreckt ist.Finally, a relatively large amount of AI is dissolved in the Mg matrix. This results in a high ductility, which is described in more detail below. This is achieved in particular in that the AM die-casting alloy according to the invention is water-quenched.
Die oben genannte Aufgabe wird außerdem mit einem Verfahren zur Herstellung eines Interieurteils aus der eingangs genannten AM-Druckgusslegierung dadurch gelöst, dass es nach dem Abguss oder nach dem Öffnen der Druckgussform in Wasser abgeschreckt wird.The above-mentioned object is also achieved with a method for producing an interior part from the AM die-casting alloy mentioned at the outset in that it is quenched in water after the casting or after opening the die-casting mold.
Wie bereits erwähnt, wird hierdurch eine hohe Duktilitat erzielt. Im Vergleich zur langsamen Abkühlung an Luft wird beim Wasserabschrecken mehr Aluminium in der Mg-Matrix gelöst, so dass sich erstens eine günstige Mischkristallhärtung ergibt, die das Gefüge im Gegensatz zur Mgι7Alι2-Ausscheidungshärtung kaum versprödet . Zweitens wird im Gegensatz zu einer Luftabkühlung gemäß dem Stand der Technik das nicht in der Mg- Matrix gelöste Aluminium in Form sehr feiner Mg17Al12-Phasen ausgeschieden.
Drittens erfolgt die Ausscheidung beim Wasserabschrecken zusätzlich zu den Korngrenzen auch in der Mg-Matrix selbst. Hierdurch wird im Vergleich zur Luftabkühlung die Zugfestigkeit und die Dehngrenze der erfindungsgemäßen AM- Druckgusslegierung deutlich erhöht, ohne dass infolge des im Vergleich zu der bekannten AM20-Legierung angehobenen Aluminium-Gehalts sich die Zähigkeit verschlechtert, da nur wenig grobe Mgι7Alι2-Korngrenzenphasen entstehen.As already mentioned, this leads to a high ductility. In comparison to the slow cooling in air, more aluminum is dissolved in the Mg matrix during water quenching, so that, firstly, there is a favorable mixed crystal hardening which, in contrast to the Mg 7 Al 2 precipitation hardening, hardly embrittles. Secondly, in contrast to air cooling according to the prior art, the aluminum which is not dissolved in the Mg matrix is precipitated in the form of very fine Mg 17 Al 12 phases. Thirdly, water quenching also occurs in the Mg matrix itself in addition to the grain boundaries. As a result, the tensile strength and the yield strength of the AM die-casting alloy according to the invention are significantly increased in comparison to air cooling, without being increased as a result of the increase in comparison with the known AM20 alloy Aluminum content deteriorates the toughness, since only a few coarse Mgι 7 Al ι2 grain boundary phases arise.
Schließlich wird die thermische Stabilität des Gefüges bei der Langzeitbelastung unter 120°C merklich verbessert. So fungieren im Fall einer Luftabkühlung gemäß dem Stand der Technik die grob ausgeschiedenen Mg17Al12-Korngrenzenausscheidungen als Keimbildner für weitere Mg17Al12-Phasen, so dass nach thermischer Alterung die Korngrenzen vollständig mit Mgι7Alι2-Phasen belegt bzw. verankert sind. Dies führt zu einer totalen Materialversprδdung.Finally, the thermal stability of the structure is significantly improved under long-term exposure below 120 ° C. Thus, in the case of air cooling in accordance with the prior art, the roughly precipitated Mg 17 Al 12 grain boundary precipitates act as nucleating agents for further Mg 17 Al 12 phases, so that after thermal aging the grain boundaries are completely covered or anchored with Mg 7 Al 12 phases are. This leads to total material embrittlement.
Bei der erfindungsgemäßen Wasserabschreckung der neuen AM- Druckgusslegierung liegen weniger und feinere Mgι7Alι2- Korngrenzenausscheidungen und somit weniger Keimbildner vor, so dass bei thermischer Alterung die Korngrenzen kaum oder langsamer und geringer verspröden.In the water quenching of the new AM die-casting alloy according to the invention, fewer and finer Mgι 7 Alι 2 grain boundary precipitates and thus fewer nucleating agents are present, so that the grain boundaries become brittle or less slowly and less brittle during thermal aging.
Bevorzugt wird das aus der erfindungsgemäßen Legierung hergestellte Interieurteil innerhalb von 60 s, insbesondere innerhalb von 40 s, vorzugsweise innerhalb von 30 s, nach dem Ab- guss oder nach dem Öffnen der Druckgussform in Wasser abgeschreckt . Durch diese unmittelbar nach dem Abguss erfolgende Temperaturabsenkung wird, wie oben erwähnt, vermieden, dass sich grobe Mgι7Al12-Korngrenzenphasen im Übermaß ausbilden.The interior part produced from the alloy according to the invention is preferably quenched in water within 60 s, in particular within 40 s, preferably within 30 s, after casting or after opening the die-casting mold. As mentioned above, this lowering of the temperature immediately after the casting process prevents coarse Mgι 7 Al 12 grain boundary phases from forming in excess.
Bei den erfindungsgemäßen wasserabgeschreckten AM40-Druckgussteilen fällt die Bruchdehnung deutlich langsamer ab als von in Luft abgekühlten AM40-Teilen. Die gute Crash- Performance der AM40-Druckgussteilen bleibt also auch bei
längerem Fahrbetrieb in heißen tropischen Ländern bzw. bei einer Platzierung des Bauteils in der Nähe von heißen Aggregaten weitestgehend erhalten.In the water-quenched AM40 die-cast parts according to the invention, the elongation at break drops much more slowly than that of AM40 parts cooled in air. The good crash performance of the AM40 die-cast parts remains the same longer driving in hot tropical countries or if the component is placed near hot units as far as possible.
Beispielhaft wurden an einem nach dem Abguss in Wasser abgeschreckten AM40-Lenkrad die Festigkeitswerte als auch die Korrosionsbeständigkeit ermittelt. Die Speichen ließen sich bis zu einem Winkel von 60° umbiegen, bevor ein erster Abriss erfolgte. In den Speichen betrug die Mindestzugfestigkeit 150 MPa, die Mindestdehngrenze 110 MPa und die Mindestbruchdehnung lag bei etwa 10%.As an example, the strength values and the corrosion resistance were determined on an AM40 steering wheel which was quenched in water. The spokes could be bent up to an angle of 60 ° before the first demolition. The minimum tensile strength in the spokes was 150 MPa, the minimum yield strength 110 MPa and the minimum elongation at break was around 10%.
Somit werden bei höherer Duktilitat gleich hohe Festigkeitseigenschaften erzielt, wie bei AM50- und AM60-Lenkradskeletten, bzw. die Festigkeitseigenschaften von AI-Druckgusslenkrädern aus MgA12Mn-Druckguss erreicht. Die Crash- Performance, die Festigkeitseigenschaften von wasserabgeschreckten LenkradvollSkeletten waren voll zufriedenstellend. Daneben ist die AM40-Legierung gegenüber der AM20-Legierung im Klimawechseltest korrosionsbeständiger.
With higher ductility, the same high strength properties are achieved as with AM50 and AM60 steering wheel skeletons, or the strength properties of AI die-cast steering wheels made of MgA12Mn die-cast. The crash performance, the strength properties of water-quenched steering wheel full skeletons were completely satisfactory. In addition, the AM40 alloy is more corrosion-resistant than the AM20 alloy in the climate change test.
Claims
1. AM-Druckgusslegierung, insbesondere für Interieurteile im Kraftfahrzeug-Bereich, enthaltend hauptsächlich Mg und ergänzt mit1. AM die-casting alloy, especially for interior parts in the motor vehicle sector, mainly containing Mg and supplemented with
Aluminium 3,5 bis 4,5 Gew % Mangan 0,22 bis 0,6 Gew %Aluminum 3.5 to 4.5% by weight manganese 0.22 to 0.6% by weight
sowie in geringen Mengen Ni, Si, Fe, Zn, Cu.as well as in small amounts Ni, Si, Fe, Zn, Cu.
2. AM-Druckgusslegierung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass der Al-Gehalt 3,8 Gew.% bis 4,2 Gew.-% ist und bevorzugt 4 Gew.-% ist.2. AM die-casting alloy according to claim 1, so that the Al content is 3.8% by weight to 4.2% by weight and is preferably 4% by weight.
3. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass sie eine MgAl4Mn-Legierung (AM40) ist.3. AM die-casting alloy according to one of the preceding claims, that it is a MgAl4Mn alloy (AM40).
4. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass der Cu-Gehalt < 100 ppm ist.4. AM die-casting alloy according to any one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that the Cu content is <100 ppm.
5. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass der Ni -Gehalt < 20 ppm ist. 5. AM die casting alloy according to one of the preceding claims, characterized in that the Ni content is <20 ppm.
6. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass der Fe-Gehalt < 40 ppm ist.6. AM die-casting alloy according to one of the preceding claims, that a d u r c h g e k e n n z e i c h n e t that the Fe content is <40 ppm.
7. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass der Si -Gehalt < 0,1 Gew.-% ist.7. AM die casting alloy according to any one of the preceding claims, that the Si content is <0.1% by weight.
8. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass der Zn-Gehalt < 0,22 Gew.-% ist.8. AM die-casting alloy according to any one of the preceding claims, that the zn content is <0.22% by weight.
9. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass relativ viel AI in der Mg-Matrix gelöst ist.9. AM die-casting alloy according to one of the preceding claims, that a relatively large amount of Al is dissolved in the Mg matrix.
10. AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass sie wasserabgeschreckt ist .10. AM die-casting alloy according to one of the preceding claims, that it is water-quenched.
11. Verfahren zur Herstellung eines Interieurteils aus einer AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass es nach dem Abguss oder nach dem Öffnen der Druckgussform in Wasser abgeschreckt wird.11. A method for producing an interior part made of an AM die-casting alloy according to one of the preceding claims, that it is quenched in water after the casting or after opening the die-casting mold.
12. Verfahren nach Anspruch 12 , d a d u r c h g e k e n n z e i c h n e t , dass das Abschrecken des Druckgussteils in Wasser innerhalb von 60 s, insbesondere 40 s, und vorzugsweise 30 s nach dem Abguss oder nach dem Öffnen erfolgt. 12. The method according to claim 12, characterized in that the quenching of the die-cast part in water takes place within 60 s, in particular 40 s, and preferably 30 s after the casting or after opening.
3. Verwendung einer AM-Druckgusslegierung nach einem der vorhergehenden Ansprüche 1-12 zur Herstellung von Interieurteilen im Kraftfahrzeug-Bereich. 3. Use of an AM die-casting alloy according to one of the preceding claims 1-12 for the production of interior parts in the automotive field.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10230275.8 | 2002-07-05 | ||
| DE2002130275 DE10230275A1 (en) | 2002-07-05 | 2002-07-05 | AM die casting alloy and method of making an interior seal from such an AM die cast alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004005564A1 true WO2004005564A1 (en) | 2004-01-15 |
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ID=29761666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/006728 WO2004005564A1 (en) | 2002-07-05 | 2003-06-26 | Am-magnesium pressure die cast alloy and method for producing an interior fitting from an am-magnesium pressure die cast alloy |
Country Status (2)
| Country | Link |
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| DE (1) | DE10230275A1 (en) |
| WO (1) | WO2004005564A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050194072A1 (en) | 2004-03-04 | 2005-09-08 | Luo Aihua A. | Magnesium wrought alloy having improved extrudability and formability |
| DE102006057660B4 (en) * | 2006-12-07 | 2019-08-22 | Bayerische Motoren Werke Aktiengesellschaft | Method for die casting of components and use of a spray device of a die casting device |
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| JPS61243147A (en) * | 1985-04-18 | 1986-10-29 | Honda Motor Co Ltd | High ductility mg alloy for core material of steering wheel |
| JPH0578775A (en) * | 1991-09-20 | 1993-03-30 | Toyota Motor Corp | Magnesium alloy excellent in corrosion resistance |
| WO1994016114A1 (en) * | 1993-01-15 | 1994-07-21 | United Technologies Automotive, Inc. | Magnesium steering wheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2264309A (en) * | 1940-03-09 | 1941-12-02 | Dow Chemical Co | Magnesium base alloy |
| DE9400065U1 (en) * | 1994-01-04 | 1994-02-24 | Geck Hans Lothar | Coffin fitting made of metal |
-
2002
- 2002-07-05 DE DE2002130275 patent/DE10230275A1/en not_active Ceased
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2003
- 2003-06-26 WO PCT/EP2003/006728 patent/WO2004005564A1/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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