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Description
PROCESS OF PRODUCTION
FZM is Manufactured from high quality Bayer process alumina and zircon sand in electric arc furnace, During melting, the zircon and alumina react to yield a mixture of mullite and zirconia.
It is composed of large needle-like mullite crystals containing co-precipitated monoclinic ZrO2.
APPLICATION
It is used in specialty product applications where a high resistance to environmental corrosion and a low coefficient of thermal expansion are desirable properties. Applications include ceramic pressure casting tubes and refractory shapes requiring resistance to molten slag and molten glass.
Zir-mull bricks and bricks used in the Glass Industry as well as an additive in Continuous casting refractories.
Specification
|
Items |
Unit |
Index |
Typical |
||
|
Chemical composition |
Al2O3 |
% |
41.00-46.00 |
44.68 |
|
|
|
ZrO2 |
% |
35.00-39.00 |
36.31 |
|
|
|
SiO2 |
% |
16.50-20.00 |
17.13 |
|
|
|
Fe2O3 |
% |
0.20max |
0.09 |
|
|
Bulk density |
g/cm3 |
3.6min |
3.64 |
||
|
Apparent porosity |
% |
3.00max |
|||
|
Phase |
3Al2O3.2SiO2 |
% |
50-55 |
||
|
|
Indined ZrSiO4 |
% |
30-33 |
||
|
|
Corundum |
% |
5.00max |
||
|
|
Glass |
% |
5.00max |
||
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Inquiry
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