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Product Details:
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| Shape: | Balls | Al2O3 Content: | 71-77% |
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| SiO2 Content: | 8-23% | Bulk Density: | 1.95-2.08g/cm3 |
| Sand: | Coating Sand | Refractoriness: | 1855 Degree |
| High Light: | 50Mesh Ceramsite Sand,High Purity Ceramsite Sand,High Strength Ceramsite Sand |
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1. Ceramic Foundry Sand Introduction
Fused sand for polishing use is a neutral material without acid corrosion on the polished pieces. It has no sharpness causing no damage to workpieces. Its smooth texture polished spherical surface is a protection. NFS is fugitive without bond and polished pieces will not stick above the polished product. The polished product looks great with smooth and glossy surface.
2. Ceramic Foundry Sand Specifications
| Sand Type | Linear thermal expansion | ||
| 20 – 300ºC | 20 – 600ºC | 20 – 800ºC | |
| Silice | 14.0 | 23.0 | 17.0 |
| Chromite | 7.1 | 7.5 | 7.5 |
| Zircon | 3.4 | 4.1 | 4.5 |
| Cerabeads | 3.5 | 4.0 | 4.3 |
| Ceramsite | 7.1 | 7.3 | 7.2 |
| Al2O3 | 78-85% |
| SiO2 | 8-12% |
| Fe2O3 | 3.5% (max) |
| TiO2 | 3.5% (max) |
| Refractoriness | 1850C (3362F) |
| Angle Coefficient | 1.1 (max) |
| Thermal Expansion (at 100°C) | 0.15 |
| Thermal Conductivity | 0.196 W/m.K |
| Specific Heat | 873 J/kg |
| Bulk Density | 1.9-2.2 g/cm3 |
| pH Value | 7.65 |
| Shape | Solid Sphere |
| Binder Content Required | 3-4% |
| Crushability | 112 |
3. Ceramic Foundry Sand General advantages
High AI2O3 mineral compositions
Regular spherical shape
100% recyclable
4. Ceramic Foundry Sand Particle Size Distribution
The particle size distribution can be custom-made according to any customer’s specific requirement.
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Code |
1700 |
850 |
600 |
425 |
300 |
212 |
150 |
106 |
75 |
53 |
Pan |
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20-40 |
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15-40 |
30-55 |
15-35 |
≤3 |
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15-25 |
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30-50 |
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≤10 |
25-45 |
35-55 |
5-15 |
≤5 |
≤2 |
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25-29 |
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40-70 |
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≤10 |
25-45 |
20-40 |
5-25 |
≤7 |
≤5 |
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35-39 |
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40-100 |
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≤3 |
10-25 |
25-40 |
25-45 |
10-25 |
≤10 |
≤5 |
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45-55 |
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50-100 |
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≤10 |
10-30 |
30-50 |
15-35 |
≤15 |
≤5 |
≤2 |
≤1 |
55-65 |
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50-140 |
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≤8 |
10-25 |
20-45 |
20-45 |
5-20 |
≤7 |
≤2 |
≤1 |
60-70 |
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70-140 |
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≤10 |
10-25 |
25-45 |
15-35 |
≤15 |
≤5 |
≤2 |
75-85 |
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100-200 |
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≤3 |
10-35 |
35-55 |
15-35 |
≤10 |
≤5 |
95-115 |
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140-270 |
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≤5 |
5-25 |
40-60 |
25-40 |
≤15 |
155-175 |
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6-20 |
LFC Casting Ceramsite |
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5. Ceramic Foundry Sand Application Area and its advantage compare to traditional casting sand
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Applications |
Grit Size |
AFS SIZE |
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Foundry sand for Lost foam |
8-15#(10#)10-20#,20-30# |
AFS25-35 |
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Filler sand |
30# |
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No bake sand including furan resin /alkaline-phenolic resin molding and core making/ Pep set /Sodium-silicate bonded sand |
30-50#,40-70#,50-70#,70-140# |
AFS35-45,AFS25-35,AFS45-55, AFS55-65,AFS60-70,AFS70-80 |
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Shell molding, resin coated sand casting |
50-100#,70-140#,100-200# |
AFS55-65,AFS60-70,AFS70-80, AFS95-110 |
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Lost foam casting coating |
140-270#,-200# |
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Molding sand alcohol-based coating |
-200# |
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3D printing, precision casting, investment casting |
-140# |
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Contact Person: Jason Chen
Tel: 86-18603794999
