What will affect the quality of aluminum castings

1. Reasonable die-casting aluminum process

Reasonable die-casting process, that is, according to the structure, composition and size of die-cast aluminum castings, the characteristics of die-casting alloys and production conditions, select the appropriate parting surface, shape, core making method, reasonable casting reinforcement setting, riser and gating system To ensure the processing of high-quality low-pressure castings.

2. Design process of die casting

In the design, in addition to determining the shape and size of the die-cast aluminum castings according to the working conditions and metal material properties, the rationality of the design must also be considered from the perspective of the die-casting alloy and the characteristics of the die-casting process, that is, the significant scale effect, condensation, Shrinkage, stress, etc., to avoid or reduce the disadvantages of die-casting components such as segregation, deformation, and cracking.

3. Quality of raw materials selected for low pressure casting

If the materials used are unreasonable, aluminum castings will have pores, pinholes, slag inclusions, sand sticking and other defects. When the appearance and internal quality of die castings are serious, waste products will be produced.