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.
Main Chemical Composition:
Angularity: 1.1 max, similar to ball
Refractoriness: 1790 C min
Thermal expansion: 0.13% (10 min at 1000 C )
Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles casting treatment.
1,replacement of Quartz Sands and Silica Sands
2,Low thermal expansion rate