| 摘要 |
The present invention relates to an aluminium casting alloy containing (in % by weight) Cu: 6.0 - 8.0 %, Mn: 0.3 - 0.55 %, Zr: 0.18 - 0.25 %, Si: 3.0 - 7.0 %, Ti: 0.05 - 0.2 %, Sr: up to 0.03 %, V: up to 0.04 %, Fe: up to 0.25 %, remainder aluminium and unavoidable impurities, and to a cast part for an internal combustion engine. The aluminium casting alloy according to the invention still has good mechanical properties at high temperatures even after a relatively long period of use and can at the same time be cast easily. The cast part according to the invention also has optimised mechanical properties when used at high temperatures and can at the same time be produced in an operationally reliable manner in terms of casting. |
