Zinc die casting uses hot chamber die casting, so it can be manufactured faster than aluminum die castings which uses cold chamber.
1. High Density
2. Good casting properties, can be molded into very complex shapes
3. Good mecahnical strength and wear resistance
4. Low Melting Point
Zinc Die Casting
Die Castings Materials: Zinc
Zamak ZA3, ZA8, ZA12, ZA27, Zinc alloy 2, 3, 5, 7
Zinc-based alloys are the easiest to die cast. Ductility is high and impact strength is excellent, making these alloys suitable for a wide range of products. Zinc alloys can be cast with thin walls and excellent surface smoothness making preparation for plating and painting relatively easy. It is essential that only high purity (99.99 + 0/0) zinc metal be used in the formulation of alloys. Low limits on lead, tin and cadmium ensure the long-term integrity of the alloys strength and dimensional stability.
Zinc-Aluminum Alloys (ZA Alloys):
ZA alloys represent a family of zinc-based die casting materials which contain higher aluminum content than standard zinc alloys. These alloys provide high strength characteristics plus high hardness and good bearing properties. Thin wall castability characteristics and die life are similar to zinc alloys. ZA-8 is recommended for hot chamber die casting, whereas ZA-12 and ZA-27 must be cast by the cold chamber die casting process. All ZA alloys offer similar creep properties and are superior to standard zinc alloys.