Our equipment is capable of producing a wide range of parts that meet the net shape or near net shape specifications. Zinc die casting parts are easy to machine to meet high precision requirements. They are the best choice for a variety of surface treatments such as electroplating, traditional lacquering and powder coatings.
Zinc pressure die casting snaps hooks in our product line are made in this manner. It’s a process in which molten zinc alloy is placed under high pressure into molds or “Dies”. This zinc die casting process is very popular because of the variety of shapes and casting molds that can be created as well as the volume that can be reproduced with excellent results. The outcomes can be either left in their raw form or finely polished for a more finished look. For example, many bathrooms or kitchen faucets are plated zinc alloy die casting.
Zinc alloy properties offer a combination of characteristics that gives it a unique advantage in many zinc die casting applications. These include a combination of strength, ductility, impact strength, finishing characteristics and tooling that has a high resistance to catastrophic failure.
Zinc alloy is the heaviest alloy of the three alloy groups our die casting company offers, weighing approximately 2.5 times more than aluminum and 3.25 times more than magnesium. Further, zinc tools typically last between 400,000 and 700,000 shots depending on the design. With these factors and the finishing advantages of zinc alloy, it’s easy to see why this is a common alloy die casting choice for many applications.
ZA3#, ZA5#, ZA12#, ZA27#, etc.
|Material||Tensile Strength (Mpa)||Thermal Conductivity (W/mK)||Hardness (HB)||Features|
|ZAMAK 3||283||113||82||Good flow and mechanical properties. |
It is applied to castings that do not require high mechanical strength, such as toys, lamps, decorations, and some electrical components.
|ZAMAK 5||328||109||91||Good fluidity and good mechanical properties. |
It is applied to castings that have certain requirements on mechanical strength, such as auto parts, electromechanical parts, mechanical parts, and electrical components.
|ZAMAK 12||58||116||105||ZA-12 is the most versatile zinc alloy and is often used for gravity or pressure cast parts. |
Zamak 12 is the best gravity casting alloy for sand, permanent mould and graphite die casting processes.
It is a good cold chamber die cast alloy.
|ZAMAK 27||425||123||119||ZA-27 has the highest aluminum content, highest strength, highest melting point and lowest ZA group density. |
ZA27 is 40% stronger than typical aluminum die-cast alloys. This zinc alloy has excellent bearing properties and can be used to design bearings into castings for certain applications.
However, its relatively high casting temperature requires a cold chamber process.