Zinc alloy die casting in our life has been very high application, such as die casting instrument, automotive parts housing or precision connector housing, this article introduces the advantages of zinc alloy die casting. In general, there are three main performance: good product quality; High production efficiency; Good economic effect.

Zinc alloy die casting products of good quality main performance:

1. High precision: the size of zinc alloy castings can generally reach IT11~IT13

2. Good finish: the surface roughness of zinc alloy die-casting parts reaches Ra0.8~3.2um

3. Dense organization, zinc alloy die casting has high strength and hardness, because the liquid metal is cooled and solidified under pressure, plus the filling time is very short, the cooling speed is very fast, so on the die casting near the surface of a layer of fine metal grain, dense organization, not only makes the casting surface has good wear resistance and corrosion resistance, It also improves the hardness of the whole casting -- the tensile strength of die casting is generally 25~30% higher than that of sand casting, but the elongation is decreased.

4. Stable size, good product interchangeability;

5. Can manufacture complex shape, wheel corridor clear, can do thin wall deep cavity metal parts. Because molten metal maintains high fluidity at high pressure and high speed, metal parts that are difficult to process by other processes can be obtained. For example, the Min wall thickness of current zinc alloy die casting can be up to 0.3mm; Aluminum alloy casting up to 0.5mm; The Min casting diameter is 0.7mm. Min pitch is 0.75mm.

The main performance of high production efficiency:

1. High machine productivity, horizontal cold chamber die casting machine can die casting 600~700 times in eight hours on average, small hot chamber die casting machine can die casting 3000~7000 times in eight hours on average;

2. Long life of die casting mold, a die casting mold for die casting aluminum alloy, life can generally reach 60 ~ 80 thousand times, sometimes even up to one hundred thousand times;

3. Easy to realize mechanization and automation.

The main performance of good economic effect:

1. High material utilization rate: Because die-casting parts have the advantages of accurate size and low surface roughness value, they generally do not need to carry out mechanical processing and can be directly assembled for use, or the processing amount is small, only need to go through a small amount of mechanical processing can be assembled for use, not only improve the utilization rate of metal, but also reduce a lot of processing equipment and working hours. The utilization rate of forest stock is about 60%~80%, and the utilization rate of blank is about 90%.

2. The price of zinc alloy die casting is cheaper;

It can save valuable materials and processing hours, and the parts of other materials can be directly embedded in the zinc alloy die casting, which not only meets the requirements of use, expands the use of products, reduces the assembly workload, and simplifies the manufacturing process.