What is zinc alloy wire? Many people say they don't know about this alloy product. In fact, this alloy product plays an important role in industrial production, and it has many applications. The following is a detailed introduction to the characteristics of zinc alloy wire and the use of precautions.

Summarize the characteristics of zinc alloy wire

1. Large proportion of synthesis.

2. The casting performance is good, the casting thin wall is small, the die casting shape is complex, the casting surface is smooth.

3. Surface treatment: electroplating, spraying, spray painting.

4. In the process of melting and die casting, there will be no phenomenon of iron absorption, corrosion forming and mold sticking.

5. Good mechanical properties and wear resistance at room temperature.

6. Low melting point, 385 melting, easy to die casting.

Two, the summary of the use of zinc balls should pay attention to the problems:

1. Poor corrosion resistance. When the impurities in the alloy components of die casting are lead, cadmium, tin and other elements exceed the standard, the die casting will undergo aging deformation, which is manifested as volume expansion, obvious decrease in mechanical properties and plasticity, and long-term fracture. The solubility of lead, tin and cadmium in zinc alloy wire is very small, so they concentrate on the grain boundary and become the negative extreme. The aluminum-rich solid solution becomes the anode. Under water vapor (electrolyte) conditions, intergranular electrochemical corrosion will be promoted. Die castings can age due to intergranular corrosion.

2. The microstructure of zinc alloy wires is mainly composed of zinc rich solid solutions containing Al and Cu and Al rich solid solutions containing Zn. Their solubility decreases as the temperature decreases. But because the die casting solidification speed is very fast, the solubility of solid solution at room temperature is greatly saturated. In this way, after a period of time, the supersaturation will gradually ease, resulting in some changes in the shape and size of the die cast.

3. Zinc alloy wire die casting is usually used for high and low temperature (below 0). Zinc alloy wire has good mechanical properties at room temperature. But the high temperature tensile strength and low temperature impact property decreased significantly.