The melting point of zinc alloy is relatively low. When the temperature reaches 400 ℃, the melting process of zinc alloy will occur, which is beneficial to the forming of zinc alloy die castings. Zinc alloy will not attract iron in the process of melting and die casting. Zinc alloy has good casting properties. In the process of die casting, many precision parts with complex shapes can be made. After die casting, the surface of the casting appears very smooth. At the same time, the proportion of zinc alloy is larger.
Zinc alloy die casting technology is widely used in injection molding process, its main advantage is to focus on improving the quality of castings. Anyone who knows about zinc alloy die casting knows that runner and other materials are part of the casting. In the casting, they have no use value, but these are still included in the casting cost. The alloy is also recyclable. Usually, these surplus materials will be returned to the original supplier in exchange for new materials. If the supplier does not carry out good treatment, it will lead to air pollution and environmental hazards. There are many ways to recover zinc alloy die casting. Zinc alloy die casting is an alloy with zinc as the main element, and other alloy elements, such as aluminum and copper. The manufacturing process of zinc alloy die casting is usually divided into two kinds, one is casting zinc alloy, the other is deformation zinc alloy. Each method has different characteristics for zinc alloy casting.
It is suggested that the casting process should be selected according to the following characteristics of zinc alloy die castings-
Zinc alloy die casting technology has the following characteristics
1. Relatively heavy.
2. Good casting performance, can die-casting complex shape, thin wall precision parts, casting surface is smooth.
3. Surface treatment: electroplating, spraying, painting, polishing, grinding, etc.
4. During melting and die casting, it does not absorb iron, corrode pressure and stick to the die.
5. It has good mechanical properties and wear resistance at room temperature.
6. Low melting point, easy to die-casting.
In order to understand zinc alloy die casting, we must first understand some characteristics of zinc alloy. Zinc alloy plays an important role in zinc alloy die casting.