1. The production efficiency is high, and the production process is easy to realize mechanization and automation. Generally, the cold chamber die-casting machine casts 50~90 times per hour on average, while the hot chamber die-casting machine casts 400~900 times per hour on average, with high production efficiency.

2. Die castings have high dimensional accuracy and surface quality. The general tolerance grade of die castings is it13~it15 in gb/t 1800-2009, and the higher accuracy can reach it10~w 11. The surface roughness is 3.2~1.6um, and locally 0.8um. Because of the high dimensional accuracy and high surface quality of die castings, die castings with low requirements can be used directly, avoiding machining or using less machining, improving the utilization of alloy and saving a lot of machining costs.

3. Die castings have high mechanical properties. The metal melt cools fast in the die casting mold and crystallizes under pressure. Therefore, the layer near the surface of the die casting has fine grains, dense structure, high strength and hardness.

4. It can die cast complex thin-walled parts. Die castings can have complex part shapes, and the wall thickness of parts can be small. The minimum wall thickness of aluminum alloy die castings is 0 5mm, the minimum wall thickness of zinc alloy die castings can reach 0 3mm。

5. Parts of other materials can be embedded in die castings. In this way, valuable materials and processing costs can be saved, parts with complex shapes can be obtained, the performance of parts can be improved, and the assembly workload can be reduced.

6. Compared with sheet metal parts, the shape of die-casting parts can be more complex, and the wall thickness of parts can be changed. One die-casting can replace several sheet metal parts, so as to simplify the product structure.

7. Compared with plastic parts, die castings have advantages in strength, conductivity, thermal conductivity and anti electromagnetic radiation.

8. Compared with machined parts, die castings are light in weight and low in processing cost.

9. Compared with other casting methods, die-casting products have high dimensional accuracy, good surface quality and high production efficiency.