Why choose zinc alloy for making signs?

Writer：admin Time：2023-06-08 10:38 Browse：℃

　　Zinc alloy is an alloy based on zinc and composed of other elements. The commonly added alloying elements include low-temperature zinc alloys such as aluminum, copper, magnesium, cadmium, lead, and titanium. Among them, zinc accounts for 95% to 96%, aluminum accounts for 3.5% to 4.3%, and the rest is copper and magnesium. Due to the fact that zinc and aluminum are both very active amphoteric metals with poor chemical stability, they are prone to corrosion and oxidation in the air. Zinc alloy signs mainly have zinc alloy electroplating and zinc alloy die-casting processes. The main advantages of zinc alloy signs are durability, not easy to corrode, not afraid of rain or sunlight, wear resistance, not fading, and are beautiful and generous, with bright colors, clear patterns, and good brightness.

　　1、 Why choose zinc alloy for making signs?

　　1. Significant;

　　2. Good casting performance, capable of die-casting precision parts with complex and thin-walled shapes, with smooth casting surfaces;

　　3. Surface treatment: electroplating, spraying, painting, electrophoresis, polishing, Water transfer printing, etc;

　　4. When melting and die-casting, do not absorb iron, do not corrode the mold, and do not stick to the mold;

　　5. It has excellent room temperature mechanical properties and wear resistance;

　　2、 Types of zinc alloy signs

　　Zamak 3: Good flowability and mechanical properties. It is applied to castings with low requirements for mechanical strength, such as decorations and some electrical parts.

　　Zamak 5: Good flowability and mechanical properties. It is applied to castings with certain requirements for mechanical strength, such as auto parts, Machine element, etc.

　　Zamak 2: Used for Machine element with special requirements for mechanical properties, high requirements for hardness and general requirements for dimensional accuracy.

　　ZA8: Good flowability and dimensional stability, but poor flowability. Applied to die-casting workpieces with small dimensions, high precision and mechanical strength requirements, such as electrical components.

　　Different zinc alloys have different physical and mechanical properties, providing a space for selection in die casting design.