Ceramic Foundry sand

Ceramic foundry sand ,called ceramisite sand,china cerabeads and cerasand too, is made from high qua lity bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and a ir permeability, it is a new type casting material for precision casting, coated sand and self harde ning sand etc.

Size: 10-300mesh

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), Copp er and Aluminium articles casting treatment.

Advantages:
1,replacement of Quartz Sands and Silica Sands
2,Low thermal expansion rate
3,high refractoriness