Aluminium alloy and the utilization thereof for a cast...

Details Aluminium alloy and the utilization thereof for a cast... Aluminium alloy and the utilization thereof for a cast...

C - Chemistry, Metallurgy

22

C

C22C 21/04 (2006.01) C22F 1/043 (2006.01)

Patent

CA 2657731

The invention relates to an aluminum alloy, in particular a pressure casting alloy, preferably for a cast component of a motor vehicle, with the following alloy elements: 6.5 to <9.5% by weight of silicon, 0.3 to 0.6% by weight of manganese, 0.15 to 0.35% by weight of iron, 0.02 to 0.6% by weight of magnesium, a maximum of 0.1% by weight of titanium, 90 to 180 ppm strontium and aluminum as the remainder, with a maximum of 0.05% by weight, and a total maximum of 0.2% by weight of production-related contaminants. The alloy is particularly suitable for the pressure casting of the cast components of a motor vehicle such as oil pans, for example.

La présente invention concerne un alliage en aluminium, en particulier un alliage de coulée sous pression de préférence pour un composant coulé d'un véhicule automobile comprenant les éléments d'alliage suivants : 6,5 à <9,5 % en poids de silicium, 0,3 à 0,6 % en poids de manganèse, 0,15 à 0,35 % en poids de fer, 0,02 à 0,6 % en poids de magnésium maximum, 0,1 % en poids de titane, 90 à 180 ppm de strontium et le reste étant de l'aluminium avec individuellement 0,5 % en poids maximum et au total 0,2 % en poids maximum d'impuretés imposées par la fabrication. L'alliage convient en particulier pour la coulée sous pression de composants coulés d'un véhicule automobile comme par exemple des carters d'huile.

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