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Product Details:
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| Shape: | Ball | Al2O3 Content: | 71-78% |
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| SiO2 Content: | 8-24% | Bulk Density: | 1.95-2.09g/cm3 |
| Sand: | Foundry Sand | Refractoriness: | 1795 Degree |
| High Light: | SGS Fused Silica Sand,1.95g/cm3 Fused Silica Sand,SGS Foundry Silica 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
1. Low thermal expansion coefficient
2. High strength with good compressive strength and bending resistance ability and low broke rate.
3. spherical shape, good flowability, easy to shakeout
4. smooth surface, compact structure
5. chemically neutral material
6. high-temperature resistance, good refractoriness
7. Recycle up to 10 times, highly cost-effective.
8. Save resin consumption with casting tech such as shell molding, Resin coated sand casting, Vacuum casting, etc.
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
