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» Economics » Prototypes » Topics begins with D » Die-cast zinc

Page modified: Wednesday, July 13, 2011 20:59:49

With the die-cast zinc the liquid melt of a zinc alloy (so-called Zamak alloys) under high pressure is pressed and extremely fast into a Druckgussform (mold). This procedure happens within approx. 10 - 20 milliseconds. Cast parts are produced by high precision, hardness and firmness.

Because of the relatively low melting point and a particularly close solidification interval of the zinc alloys particularly close tolerance and fastidious surfaces can be produced with the die-cast zinc. In this way the manufacturing of large numbers of items from a form is possible. The numbers of items can amount to between 1000 with small articles and 90 with majorities. The form durability lies between 500.000 and 5 million cast parts.


Die-cast zinc is suitable for smallest parts (e.g. Zipper claws) up to medium sized parts with complicated shaping (e.g. Housing for electrical appliances). In the die-cast zinc manufactured articles surround us daily. Many grasps and locks at doors, windows and gates are exactly the same from die-cast zinc such as model railways and model cars.

With older zinc products, which developed from unfavorable or contaminated alloy mixtures, partly the so-called zinc plague is to be observed. Here it comes to decomposition features of the metal structure, which lead to cracking, breaks up to the complete destruction of the product. This is with old pieces of collecting tank as to be e.g. determined in particular model railways from the years briefly forwards or briefly after the Second World War regularly.

See also: Pressure pouring, Zamak alloy, aluminum pressure pouring, Magnesiumdruckguss, tool construction, building of forms,

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