Die casting aluminum alloy features
In addition to meeting the performance requirements of the parts, the aluminum alloys that cast are also the following characteristics to be able to make frust without hitches:
(1) When the degree of overheating is not high, even in the solid and liquid temperature interval, it should have good rheological properties of the plastic body, that is, under the action of the pressure, the apparently viscous aluminum alloy liquid still has Excellent rheological properties. Fluidity, easy to fill complex cavities and guarantee a good surface consistency of vintage jets. Reduce the narrowing holes in the jets. At the same time, it improves the working conditions of the spinning mold and increases its working life;
(2) The linear narrowing rate is small and there is a certain resistance at high temperature, in order to avoid cracks and deformation of the merger and improve the dimensional accuracy of the merger;
(3) The crystallization temperature range is small, which can reduce the possibility of narrowing holes in the merger;
(4) It has a certain resistance to the high temperature solid state to prevent the merger from being deformed or broken when the mold is opened;
(5) should have a certain resistance at room temperature to improve the mechanical resistance and the surface hardness of the merger as much as possible;
(6) There is no chemical reaction with the basket of basket and the affinity is small, preventing the mutual league of the sticky mold and the merger and the merger mold;
(7) It is not easy to inhale and oxidize in the melted state at high temperature, in order to meet the requirements of long -term heat conservation during the merger.
Aluminum alloys for bearing have good performance and process performance, so the aluminum alloys basket has developed rapidly and has been widely used in various industrial sectors. Aluminum casting alloys can be divided into A1-SSI alloys, L1-Cu leagues, A1-Mg alloys and A1-In alls containing basic elements.
