Zinc alloy is an alloy composed of other elements based on zinc. The alloying elements that are often added are aluminum, copper, magnesium, cadmium, lead, and titanium. Zinc alloy has low melting point, good fluidity, easy fusion welding, brazing and plastic processing, corrosion resistance in the atmosphere, easy recycling and remelting of residual waste, but low creep strength, prone to natural aging and dimensional changes. Prepared by melting, die casting or pressure processing. Zinc alloys can be divided into cast zinc alloys and deformed zinc alloys according to the manufacturing process. Cast zinc alloy has good fluidity and corrosion resistance, and is suitable for die-casting instruments, automobile parts casings, etc.