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Products |
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Our Zamak Alloy can
be divided in two main groups: |
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DIE-CASTING ZAMAK |
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CENTRIFUGE FUSION ZAMAK |
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DIE-CASTING ZAMAK |
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The
term “die-casting” refers to the casting
metal under pressure process, that makes alloy be
casted into a mold.
The
high fluidity of this kind of alloys and the low
melting point permit to obtain pieces with narrow
tolerance limits and very elaborate shapes, which
are not obtainable with any other alloy with high
melting point. For the most part of industrial
applications it isn’t not important the quality
choice of the alloy, because the physical and
mechanical characteristics differ little. The choice
becomes important when the application justifies the
research of a specific property.
This kind of die-casted alloys differs from other
for the larger or shorter quantity of Copper and
Magnesium they contain.
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Our
product summary table: |
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TYPE |
ZL3 |
ZL6 |
ZL2 |
ZL6 |
ZL8 |
ZL12 |
ZL27 |
ZL16 |
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|
Type |
Elem. |
Al |
Cu |
Mg |
Cr |
Ti |
Pb |
Cd |
Sn |
Fe |
Ni |
Si |
Zn |
|
ZL3 |
min. |
3,8 |
− |
0,04 |
− |
− |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
4,2 |
0,03 |
0,06 |
− |
− |
0,003 |
0,003 |
0,001 |
0,020 |
0,001 |
0,02 |
|
|
ZL5 |
min. |
3,8 |
0,7 |
0,04 |
− |
− |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
4,2 |
1,1 |
0,06 |
− |
− |
0,003 |
0,003 |
0,001 |
0,020 |
0,001 |
0,02 |
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|
ZL2 |
min. |
3,8 |
2,7 |
0,04 |
− |
− |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
4,2 |
3,3 |
0,06 |
− |
− |
0,003 |
0,003 |
0,001 |
0,020 |
0,001 |
0,02 |
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ZL6 |
min. |
5,6 |
1,2 |
|
− |
− |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
6,0 |
1,6 |
0,01 |
− |
− |
0,003 |
0,003 |
0,001 |
0,020 |
− |
0,02 |
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ZL8 |
min. |
8,2 |
0,9 |
0,02 |
− |
− |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
8,8 |
1,3 |
0,03 |
− |
− |
0,005 |
0,005 |
0,002 |
0,035 |
− |
0,04 |
|
|
ZL12 |
min. |
10,8 |
0,5 |
0,02 |
− |
− |
− |
− |
− |
− |
0,001 |
− |
Rest |
|
max. |
11,5 |
1,2 |
0,03 |
− |
− |
0,005 |
0,005 |
0,002 |
0,050 |
− |
0,05 |
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|
ZL27 |
min. |
25,5 |
2,0 |
0,01 |
− |
− |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
28,0 |
2,5 |
0,02 |
− |
− |
0,005 |
0,005 |
0,002 |
0,070 |
− |
0,07 |
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ZL16 |
min. |
0,01 |
1,0 |
− |
0,1 |
0,2 |
− |
− |
− |
− |
− |
− |
Rest |
|
max. |
0,04 |
1,5 |
0,02 |
0,2 |
0,3 |
0,005 |
0,004 |
0,003 |
0,040 |
− |
0,07 |
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Each of our
products observe the EN 1774 standards. |
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CENTRIFUGE
FUSION ZAMAK |
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This kind
of alloy, which differs from “die-casting
Zama” alloys for its high content of
Magnesium, is mainly used for centrifuge
fusion processes. |
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Composition and general characteristics
As told
before, Zamak is an alloy of Zinc with diferent levels of:
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Alluminium |
Copper |
Magnesiium |
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ZAMAK
structure is composed by crystals rich of Zinc, which give
to the alloy the characteristics of a “stringy” material.
Zamak characteristics are the result of many years careful
researches and studies, whose purpose are to obtain the best
characteristics, for many applications, andd to determine
the optimal resistance of each composition and to fix the
limits of impurity admissibility. |
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This table
shows the advantages of the presence of the three metal
aforesaid: |
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On the
contrary, metals like Lead, Cadmium and Tin increase the
risks for Zinc-Alluminium alloys to intercrystal corrosion
even at very low standards, beacause they are little soluble
and tend to settle on the crystal surface.
ZAMAK application fields are extremely different: car
industry, hardware item production, metal trinklets for
clothing, furnishing, decoration, construction and
modelling, etc.
One of the main reasons that makes this alloy widely used
is, for instance, the low melting point (380° for
die-coating alloys annd 500° for those with high content od
Allumium).
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On
the other hand there are some limitation of Zamak
alloy, that restrict their applications:
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Weak
resistance to the corrosion. |
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They
are prone to get polluted by a simple contact with
other kind of common alloys, as Brass or Bronze,
because they absorb small quantities of Tin or Lead.
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Limited resistance to heat. |
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