What are the characteristics and types of zinc alloys?

Features
1. Relatively large.
The casting performance is good, can be die-casting complex shape, thin-walled precision parts, casting surface is smooth. 3. Surface treatment: electroplating, spraying, painting, polishing, grinding, etc.
4. Melting and die casting does not suck iron, does not corrode the pressure type, does not stick to the mold.
5. Good room temperature mechanical properties and wear resistance.
6. Low melting point, melting at 385 ℃, easy to die casting. Kind
The traditional die-casting zinc alloy has 2, 3, 4, 5, 7 alloy, the most widely used is 3 zinc alloy. In the seventies, high aluminum zinc-based alloy ZA-8, ZA-12 and ZA-27 were developed.
Zamak 3: Good fluidity and mechanical properties.
It is applied to castings that do not require high mechanical strength, such as toys, lamps, decorations, and some electrical devices. Zamak 5: Good fluidity and good mechanical properties.
Used in castings with certain requirements for mechanical strength, such as auto parts, electromechanical parts, mechanical parts, and electrical components.
Zamak 2: Used for mechanical parts with special requirements for mechanical properties, high hardness requirements, good wear resistance, and general dimensional accuracy requirements. ZA8: It has good impact strength and dimensional stability, but poor fluidity.
Used in die-casting small size, high precision and mechanical strength of the workpiece, such as electrical components.
Superloy :. It has the best fluidity and is used for die-casting thin-walled, large-size, high-precision, and complex-shaped workpieces, such as electrical components and their boxes. Different zinc alloys have different physical and mechanical properties, which provide a choice for die casting design.
Zinc alloy according to the manufacturing process can be divided into two kinds of casting zinc alloy and zinc alloy deformation. The yield of cast alloys is much greater than that of deformed alloys.