Release time: 2020-02-21 10:03:51 Page viewed: 537
Fused ceramic sand for foundry substitute for chromite sand and zircon sand
Ceramic foundry is an advanced substitutes of quartz sand in casting field.
Physical And Chemical Performance
physical property |
Chemical property |
||
shape |
Spherical |
Al2O3 |
70%-80% |
color |
taupe brown |
SiO2 |
≤15% |
Refractoriness |
≥1790℃ |
TIO2 |
≤3.5% |
Liner thermal expansion |
(20-1000 ℃) 6 × 10-6/℃ |
Advantage 1.spherical,good mobility,good ventilation 2.smooth surface,compact structure 3.chemically neutral material 4. high temperature resistance 5.recycling and reusing,highly cost effective |
|
Bulk density |
1.95 -2.05g /cm3 |
||
Ture density |
3.4g /cm3 |
||
thermal conductivity |
(1200 ℃)5.27W/M·K |
||
Size range |
6-320mesh(φ0.053-3.36mm) |
||
PH value |
7-8 |
performance comparison of ceramic foundry sand,Chromite sand and Zircon Sand
Index |
ceramic foundry sand |
Chromite sand |
Zircon Sand |
PH value |
7.65 |
4.56 |
8.24 |
Bulk Density(g/cm3) |
1.95-2.05 |
2.9-3.1 |
2.6-2.7 |
Ture density(g/cm3) |
3.4 |
4.4-4.71 |
3.9-4.8 |
Shape |
Spherical |
Irregular |
Irregular |
Amount of binder (Waterglass+CO2hardening) |
3%----4% |
7%----8% |
7%---8% |
FOUNDRY,
CASTING
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