Zamak has low hardness and high strength; the name is formed by the first letters of names of the elements of alloy in German language: Zinc, Aluminum, Magnesium and Copper.
ZAMAK (or Zamac , formerly trademarked as MAZAK) is a family of alloys with a base metal of zinc and alloying elements of aluminium, magnesium, and copper.
Zamak alloys are part of the zinc aluminum alloy family; they are distinguished from the other ZA alloys because of their constant 4% aluminium composition.
The most common zamak alloy is zamak 3. Besides that, zamak 2, zamak 5 and zamak 7 are also commercially used.These alloys are most commonly die cast. Zamak alloys (particularly #3 and #5) are frequently used in the spin castingindustry.
A large problem with early zinc die casting materials was zinc pest, owing to impurities in the alloys. Zamak avoided this by the use of 99.99% pure zinc metal, produced by New Jersey Zinc’s use of a refluxer as part of the smelting process.
Zamak can be electroplated, wet painted, and chromate conversion coated well.
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