Zinc Alloys For Die Casting

The za alloys contain higher amounts of aluminum and offer superior strength.

Zinc alloys for die casting.

Key advantages of zinc alloy die casting. An excellent bearing alloy za 12 is also platable although plating adhesion is reduced compared to the conventional zinc alloys. 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. There are two basic families of zinc casting alloys.

From simple shapes zinc alloy die casting technology has improved the process to be able to manufacture more complex shapes. The impact strength of zinc die cast components are higher than the other common metal alloys. There are many benefits of using zinc alloy over others. It is also a good cold chamber die casting alloy.

Za 12 often competes with za 27 for strength applications. Zamak alloys contain approximately 4 aluminum and provide excellent die castability and good strength. There are two processes for zinc alloy die casting. High production rates can be achieved.

The hot chamber method and the cold chamber method. Zinc alloys generally allow greater variation in section thickness and can maintain closer tolerances. Za 12 is the best gravity casting alloy for sand permanent mold and the graphite mold casting process. Over a century ago molten metal was squeezed into die cast dies or die cast molds to manufacture axe heads.

The zinc die casting process involves the injection of molten zinc metal alloy into dies made of hardened tool steel. Zamak alloys and za alloys.