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Yves HÉMON : Head of Moulding Methods DepartmentCentre technique des industries de la fonderie
INTRODUCTION
Foundry zinc alloys can be divided into four main classes:
Z-A4 G, Z-A4 U1 G and Z-A4 U3 G alloys, the most widely used for decorative and functional parts. They are processed mainly by pressure die-casting and, to a very limited extent, by gravity die-casting;
Kayem-type alloys, used in the manufacture of press tools (stamping, deep-drawing) and molds for injection, blow molding and plastic forming;
ZA-type alloys differ from the above in that they have a higher aluminum content; ZA 8, ZA 12 (or IIzro 12) and ZA 27 alloys can be processed using all three casting techniques: sand, gravity die and pressure die; their excellent properties make them ideal for mechanical part applications;
friction alloys such as Main Metal, Alzen and Béric.
The composition and characteristics of these alloys are given in the article
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Zinc alloy casting and molding
Die casting
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