Ceramic sand properties

Ceramic foundry sand, also named as ceramsite, cerabeads, is good artificial ball sand foundries. Compare with Silica sand, it has high refractoriness, little thermal expansion, good angular coefficient, excellent flowability, high resistance to wear, high reclamation rate, it could reduce the resin addition and coating amount, increasing your castings yield.

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Kaist Ceramic foundry sand has highly cost-effective on sand molding foundry.

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Ceramic sand under electron microscope scan

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Ceramic sand under the optical microscope

Kaist Ceramic foundry sand features

● Stable grain size distribution and air permeability

● High refractoriness (>1800°C)

● High resistance to wear, crush and thermal shock

● High reclamation rate

● High collapsibility.

● Little thermal expansion

● Excellent fluidity and filling efficiency owing to being spherical

Product Information

Main Chemical Component Al₂O₃≥53%, Fe₂O₃<4%, TiO₂<3%, SiO₂≤37%
Grain Shape Spherical
Angular Coefficient ≤1.1
Partical Size 45μm -2000μm
Refractoriness ≥1800℃
Bulk Density 1.45-1.6 g/cm3
Thermal Expansion(RT-1200℃) 4.5-6.5x10-6/k
Color Sand
PH 6.6-7.3
Mineralogical Composition Mullite + Corundum
Acid Cost <1 ml/50g
L.O.I. <0.1%

Parts of Particle size Distribution

The particle size distribution can be customized according your requirement.

Mesh

20 30 40 50 70 100 140 200 270 Pan AFS

μm

850 600 425 300 212 150 106 75 53 Pan  
Code 20/40 15-40 30-55 15-35 ≤5             20±5
30/50 ≤1 25-35 35-50 15-25 ≤10 ≤1         30±5
40/70   ≤5 20-30 40-50 15-25 ≤8 ≤1       43±3
70/40   ≤5 15-25 40-50 20-30 ≤10 ≤2       46±3
50/100     ≤5 25-35 35-50 15-25 ≤6 ≤1     50±3
100/50     ≤5 15-25 35-50 25-35 ≤10 ≤1     55±3
70/140       ≤5 25-35 35-50 8-15 ≤5 ≤1   65±4
140/70       ≤5 15-35 35-50 20-25 ≤8 ≤2   70±5
100/200         ≤10 20-35 35-50 15-20 ≤10 ≤2 110±5

Post time: Dec-31-2021