Ceramic foundry sand ,called ceramisite sand,china cerabeads and cerasand too, is made from high quality bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc.
Size:10mesh-300mesh
AFS25-AFS125
Main Chemical Composition:
Al2O3≥75%
Fe2O3≤5%
TiO2 ≤5%
SiO2:5%-20%
Physical Properties:
Shape:ball, spherical
Angularity: 1.1 max, similar to ball
Bulk Density:1.95-2.05(g/cm3)
Refractoriness: 1790 C min
Thermal expansion: 0.13% (10 min at 1000 C )
Application:
Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles casting treatment.
Advantages:
1, replacement of Quartz Sands and Silica Sands
2, low thermal expansion rate
3, high refractoriness
