Zinc Alloys For Die Casting

Za 12 is the best gravity casting alloy for sand permanent mold and the graphite mold casting process.

Zinc alloys for die casting.

Zamak alloys and za alloys. Key advantages of zinc alloy die casting. There are many benefits of using zinc alloy over others. Zinc and za alloys are commonly used for smaller die castings or die castings that require thinner sections.

The impact strength of zinc die cast components are higher than the other common metal alloys. The hot chamber method and the cold chamber method. There are two processes for zinc alloy die casting. Zamak alloys contain approximately 4 aluminum and provide excellent die castability and good strength.

There are two basic families of zinc casting alloys. The zinc die casting process involves the injection of molten zinc metal alloy into dies made of hardened tool steel. Thinner wall sections can be achieved compared to other metals due to high casting fluidity. From simple shapes zinc alloy die casting technology has improved the process to be able to manufacture more complex shapes.

Over a century ago molten metal was squeezed into die cast dies or die cast molds to manufacture axe heads. The za alloys contain higher amounts of aluminum and offer superior strength. Za 12 often competes with za 27 for strength applications. Zinc alloy die casting is used for numerous decoration and functional applications.

Zamak 3 astm ag40a or zinc alloy 3 is the most widely used zinc alloy in north america and is usually the first choice when considering zinc for die casting for a number of reasons. High production rates can be achieved.