Casting alloy
AssigneeAluminium Rheinfelden GmbH
InventorHubert Koch
Life of this patent
Estimating the term…
Abstract
An aluminium alloy suitable for diecasting of components with high elongation in the cast state comprises, as well as aluminium and unavoidable impurities, 9.0 to 1.1.0 w. % silicon, 0.5 to 0.9 w. % manganese, max 0.06 w. % magnesium, 0.15 w. % iron, max 0.03 w. % copper, max 0.10 w. % zinc, max 0.15 w. % titanium, 0.05 to 0.5 w. % molybdenum and 30 to 300 ppm strontium or 5 to 30 ppm sodium and/or 1 to 30 ppm calcium for permanent refinement. Optionally, the alloy also contains 0.05 to 0.3 w. % zirconium and for grain refinement gallium phosphide and/or indium phosphide in a quantity corresponding to 1 to 250 ppm phosphorus and/or titanium and boron added by way of an aluminium master alloy with 1 to 2 w. % Ti and 1 to 2 w. % B.
Claims9
Aluminium alloy for diecasting of components with high elongation in the cast state with
- 8.5 to 10.5 w. % silicon
- 0.3 to 0.8 w. % manganese
- max 0.06 w. % magnesium
- max 0.15 w. % iron
- max 0.03 w. % copper
- max 0.10 w. % zinc
- max 0.15 w. % titanium
- 0.05 to 0.5 w. % molybdenum
- 30 to 300 ppm strontium or 5 to 30 ppm sodium and/or 1 to 30 ppm calcium for permanent refinement,
- optionally also
- 0.05 to 0.3 w. % zirconium
- 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.
Dependencies are inferred from the claim text.