Die-casting die casting system for magnesium alloy automobile engine cylinder head casing

Abstract

The invention discloses a die-casting die casting system for a magnesium alloy automobile engine cylinder head casing. The casting system is a passage for metal liquid to enter a cylinder head casing die cavity and comprises a main channel, a straight channel, a transversal channel and an inner casting opening; the casting opening is an inlet of a passage between the rear end of a transversal casting channel and a casting before the metal liquid enters the cylinder head casing die cavity and is connected with the transversal casting channel which is connected with the straight channel, and the straight channel is connected with the main channel; each displacement system comprises an overflow groove and an exhaust groove, a plurality of displacement systems are uniformly distributed at both sides of the die cavity, wherein one side of each overflow groove is connected with the cylinder head casing die cavity, and the exhaust groove is connected with the other side of each overflow groove. The invention can realize stable filling and smooth demolding in the die-casting process, has the advantages of simple structure, strong maneuverability, and the like, can lessen defects such as shrinkage porosities, shrinkage cavities, air holes, coldshut, insufficient casting, and the like on the size design of the displacement system to a great extent and can reduce the casting size to a great extent.

Description

technical field [0001] The invention relates to the technical field of pouring systems for die-casting molds, in particular to a pouring system for die-casting molds for magnesium alloy automobile engine cylinder head covers. Background technique [0002] The gating system is the channel through which molten metal enters the cavity. A reasonable gating system structure plays an important role in ensuring the quality of castings. The gating system is closely related to the metal state and gas discharge in the cavity, and can adjust the filling conditions such as filling speed, filling time, and cavity temperature. However, an unreasonable gating system will lead to defects such as pores, shrinkage porosity, cold shut and poor surface finish. On the other hand, in the design process of casting gating system, designers often take the designed gating system to produce qualified die castings as the criterion. Therefore, the designed gating system can generally produce qualified ...

AI Technical Summary

Problems solved by technology

[0003] At present, the engine cylinder head cover uses the original pouring system, which is prone to defects such as shrinkage cavity, air hole, cold seal and insufficient pouring during the die-casting molding process, which makes it difficult to guarantee the quality of the die-casting parts. The cost loss is also relatively large, and the waste of raw materials causes serious energy consumption

Images