The invention relates to the technical field of die-
casting aluminum
alloy materials, and discloses a preparation method of a high-performance die-
casting aluminum
alloy material for an automobile structural part, and a die-
casting main body is included. According to the preparation method of the high-performance die-casting aluminum
alloy material for the automobile structural part, the die-casting main body, an auxiliary plate, a supplementing opening, a water inlet, a baffle, a groove, a shell, a non-slip mat, an extension column, a die groove and a butt-joint hole are matched and connected for use, so that the problems that when the die-casting aluminum alloy material of equipment is used for production, the strength and the
ductility are relatively low, the
performance requirement of the automobile structural part cannot be met, the performance of an automobile die after injection molding is not stable enough are solved, during operation, alloy liquid is injected through internal
die casting, an internal valve needle conducts strong
extrusion, an external heating valve is matched, so that the internal liquid is more stable, and the mechanical performance of die-casting alloy is improved; and therefore, the vacuum degree in a pressure chamber and a die cavity is reduced, the
lightness and
extensibility of the die are improved, and the practicability is higher.