Zinc Alloys For Die Casting

Zinc alloys generally allow greater variation in section thickness and can maintain closer tolerances.

Zinc alloys for die casting.

Zamak alloys and za alloys. There are many benefits of using zinc alloy over others. It is also a good cold chamber die casting alloy. Zinc alloy die casting is used for numerous decoration and functional applications.

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. Over a century ago molten metal was squeezed into die cast dies or die cast molds to manufacture axe heads. 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.

Za 12 is the best gravity casting alloy for sand permanent mold and the graphite mold casting process. High production rates can be achieved. Zamak alloys contain approximately 4 aluminum and provide excellent die castability and good strength. The za alloys contain higher amounts of aluminum and offer superior strength.

Thinner wall sections can be achieved compared to other metals due to high casting fluidity. The zinc die casting process involves the injection of molten zinc metal alloy into dies made of hardened tool steel. An excellent bearing alloy za 12 is also platable although plating adhesion is reduced compared to the conventional zinc alloys. There are two processes for zinc alloy die casting.

Za 12 often competes with za 27 for strength applications. Key advantages of zinc alloy die casting.