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1. Specifications:
Particles: 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm
Sand:16-30mesh,30-60mesh,60-80mesh,80-120mesh(Mainly for precision casting.)
Powder: 200mesh,325mesh
2. Physical properties
Whiteness |
% |
≥85.0 |
|
325 mesh Screen residue
|
% |
≤0.01 |
Density |
g/cm³ |
2.62 |
Average particle diameter |
um |
0.5 |
Mohs hardness |
/ |
2 |
Moisture |
% |
≤0.4 |
3. Chemical indicators:
Item |
KDH45 |
KDH45 |
KDH44 |
KDH44 |
KDH43 |
KDH42 |
KDH40 |
KDH36 |
A |
B |
A |
B |
|||||
AL2O3 % |
46-48 |
45-48 |
44-48 |
44-48 |
43-48 |
42-46 |
40-46 |
36-42 |
Fe2O3 % (max) |
1.0 |
1.15 |
1.3 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
Ti02 % (max) |
0.8 |
0.8 |
0.9 |
0.9 |
1.0 |
1.1 |
1.2 |
|
K20+Na20 % (max) |
0.3 |
0.3 |
0.4 |
0.4 |
0.4 |
0.5 |
0.5 |
0.6 |
Ca0+Mg0 % (max) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.6 |
0.7 |
0.8 |
Bulk density g/cm3(min) |
2.58 |
2.55 |
2.52 |
2.50 |
2.45 |
2.40 |
2.37 |
2.30 |
Refractorines °C (min) |
1780 |
1770 |
1760 |
1750 |
1730 |
1710 |
1710 |
1680 |
Impurities % (max) |
0.5 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
5.0 |
4. Applications:
Calcined kaolin is mainly used for manufacturing high-quality refractory products, refractory castable, sagger, kiln furniture, crucibles, ceramic fiber, precision casting sand, ceramics products, etc
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