40Mesh Ceramic Foundry Sand 2.04g/Cm3 Bauxite Casting Sand For Steel Casting
1. Ceramic Foundry Sand Introduction
Our high quality Ceramisite sands are made by fusing, spraying, sieving and purifying high Alumina Calcined Bauxite. They can be used in casting all sizes of steel parts. The spherical shape produces high density material with excellent flow characteristics. The main chemical composition is Al2O3 which provides an excellent refractoriness and stability.
Ceramsite is ball-shaped, high heat-resistant, low heat dilating rate. it has advantage of cost and performance than Chromite sand and zircon sand that provide the effective ways to improve the quality of the foundry, cost-down and less damage to the environment.
2. Ceramic Foundry Sand Specifications
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Shape: Sphere
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Angle Factor: ≤1.15
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Bulk Density: 1.95-2.05 (g/cm3)
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Refractoriness: ≥1850℃
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Thermal expansion: 0.14% (10 minutes under 1000℃)
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Main Chemical composition (typical value as following table):
|
Unit |
Al2O3 |
SiO2 |
Fe2O3 |
TiO2 |
CaO |
MgO |
K2O |
Na2O |
|
% |
75.36 |
17.75 |
2.14 |
3.23 |
0.43 |
0.35 |
0.33 |
0.08 |
3. Ceramic Foundry Sand General advantages
High AI2O3 mineral composition
- Higher Refractoriness than Silica based sands (around 1850 C°)
- Much lower Thermal Expansion compared to Chromite and Zircon based sands
- Compatible with existing resin systems
Regular spherical shape
- Provide highly smooth surface
- Reduce binder addition
- Excellent air permeability and dispensability (reduce cleaning cost)
100% recyclable
- Cost reduce (up to around 41 times against 5-10 times for chromite based sands)
- Environment respect and health safety
4. Ceramic Foundry Sand Particle Size Distribution
The particle size distribution can be custom-made according to any customer’s specific requirement.
|
Code |
1700 |
850 |
600 |
425 |
300 |
212 |
150 |
106 |
75 |
53 |
Pan |
|
|
20-40 |
|
15-40 |
30-55 |
15-35 |
≤3 |
|
|
|
|
|
|
15-25 |
|
30-50 |
|
≤10 |
25-45 |
35-55 |
5-15 |
≤5 |
≤2 |
|
|
|
|
25-29 |
|
40-70 |
|
|
≤10 |
25-45 |
20-40 |
5-25 |
≤7 |
≤5 |
|
|
|
35-39 |
|
40-100 |
|
|
≤3 |
10-25 |
25-40 |
25-45 |
10-25 |
≤10 |
≤5 |
|
|
45-55 |
|
50-100 |
|
|
|
≤10 |
10-30 |
30-50 |
15-35 |
≤15 |
≤5 |
≤2 |
≤1 |
55-65 |
|
50-140 |
|
|
|
≤8 |
10-25 |
20-45 |
20-45 |
5-20 |
≤7 |
≤2 |
≤1 |
60-70 |
|
70-140 |
|
|
|
|
≤10 |
10-25 |
25-45 |
15-35 |
≤15 |
≤5 |
≤2 |
75-85 |
|
100-200 |
|
|
|
|
|
≤3 |
10-35 |
35-55 |
15-35 |
≤10 |
≤5 |
95-115 |
|
140-270 |
|
|
|
|
|
|
≤5 |
5-25 |
40-60 |
25-40 |
≤15 |
155-175 |
|
6-20 |
LFC Casting Ceramsite |
|
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5. Ceramic Foundry Sand Application Area and its advantage compare to traditional casting sand
|
Applications |
Grit Size |
AFS SIZE |
|
Foundry sand for Lost foam |
8-15#(10#)10-20#,20-30# |
AFS25-35 |
|
Filler sand |
30# |
|
|
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 |
|
Shell molding, resin coated sand casting |
50-100#,70-140#,100-200# |
AFS55-65,AFS60-70,AFS70-80, AFS95-110 |
|
Lost foam casting coating |
140-270#,-200# |
|
|
Molding sand alcohol-based coating |
-200# |
|
|
3D printing, precision casting, investment casting |
-140# |
|
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