Characteristics of zinc die casting

‌The characteristics of zinc die-casting mainly include the following aspects‌:

‌Low melting point‌: The melting point of zinc alloy is low, about 385℃, which makes zinc alloy easy to shape during the die casting process‌.
‌Good casting performance‌: Zinc alloy has good casting performance and can die-cast precision parts with complex shapes and thin walls, and the surface of the castings is smooth‌.
‌Excellent mechanical properties‌: Zinc alloy has good mechanical properties and wear resistance at room temperature, but its tensile strength and impact properties will decrease significantly at high and low temperatures‌.
‌Strong surface treatment ability‌: Zinc alloy can be subjected to a variety of surface treatments, such as electroplating, spraying, spray painting, etc., and has good electroplating properties‌.
‌Does not absorb iron, does not corrode the mold, and does not stick to the mold‌: During the melting and die-casting process, zinc alloy does not absorb iron, does not corrode the mold, and does not stick to the mold, which helps extend the life of the die-casting mold‌.
‌Easy to aging‌: Zinc alloys are prone to aging in certain environments, which is manifested by volume expansion and a decrease in mechanical properties, especially a significant reduction in plasticity and strength.
‌Dimensional changes‌: Zinc alloy die castings will undergo dimensional shrinkage during use. The alloy composition has a greater impact on dimensional changes. The dimensions of zinc alloy castings that do not contain copper are relatively stable‌.
‌Application areas of zinc die casting‌:

‌Toys, lamps, decorations, and some electrical devices‌: These fields do not require high mechanical strength and are suitable for using zinc alloy materials with good fluidity such as Zamak 3‌.
‌Auto parts, electromechanical parts, mechanical parts, and electrical components‌: These fields have certain requirements for mechanical strength and are suitable for the use of materials such as Zamak 5‌.
‌Mechanical parts that have special requirements for mechanical properties, high hardness requirements, and average dimensional accuracy requirements‌: suitable for using materials such as Zamak 2‌.
‌Electrical devices, workpieces with small size, high precision and high mechanical strength requirements‌: suitable for using ZA8 and other materials‌.
‌Thin-walled, large-sized, high-precision, complex-shaped workpieces‌: suitable for using materials such as Superloy‌.